代码收藏家 STM32输入捕获功能详解
文章目录
一.输入捕获
1.1 输入捕获介绍
下图指定电平跳变是指上升沿和下降沿，可以通过程序配置，发生电平跳变时，输入捕获电路会让当前CNT计数器的值锁存到CCR，锁存CCR的意思就是把当前CNT的值读出来，写入CCR中。
1.2 输入捕获框图解析1
(1).4个输入捕获和输出比较通道，共用4个CCR寄存器，CH1-CH4，4个通道和引脚也是共用的，所以对于同一个定时器，输入捕获和输出比较，只能使用其中一个，不能同时使用。
(2).对于左边的CH1-CH4引脚我们需要把右边的CH1-CH4一 一对应捕获，例如右边的输出比较CH1我们用定时器2，那此时TIM2_CH1被占据，我们就只能用别的定时器的CH1，例如TIM3_CH1,所以我们可以把PA0(TIM2_CH1)接到PA6(TIM3_CH1),左边的CH1-CH4是边沿信号输入引脚，一旦有边沿，比如说上升沿，那么输入滤波和边沿检测电路就会检测到这个上升沿，让输入捕获电路产生动作，这一块作用和外部中断差不多，都是检测电平跳变，然后执行当作，只不过外部中断执行的动作是向CPU申请中断，而这里执行的动作是控制后续电路，让当前CNT的值锁存到CCR寄存器中。
(3).总结：输出比较是根据CNT和CCR大小关系来执行输出动作，输入捕获是接收到输入信号，执行CNT锁存到CCR的动作。
(4).输入捕获作用：测量PWM波形的频率，占空比，脉冲间隔，电平持续时间等参数。
1.3 测量频率方法
(1).测频法：我们可以设置一个闸门时间T，通常设置1s，在1s时间内，对信号上升沿进行计次，从0开始计，每来一个上升沿计次+1，每来一个上升沿其实就是来了一个周期的信号，所以在1s时间内，来了多少个周期，那它的频率就是多少HZ,一个周期就是低电平和高电平,适合测量高频信号，每1s才可以得到一次结果，所以测频法结果更新比较慢，测量结果是一段时间的平均值，值比较平滑。
(2).测周法：周期的倒数就是频率，因为T=1/f(f是频率)，所以f=1/T(T是周期)，如果我们测出一个周期的时间，，周期就是下图红色位置，就可以知道频率是多少,实际上也是定时器计次，我们使用一个已知的标注频率fc的计次时钟，来驱动计数器，从一个上升沿开始计，计数器从0开始，一直计到下一个上升沿，停止计一个数的时间(时钟周期)是T=1/fc，计N个数，N就是CCR，这里的CCR可不是输出比较设置好的CCR，而是在这一个高低电平内，不断自增，到了上升沿或者下降沿，然后把CNT当前的值赋值给CCR，然后每次赋值就会替换掉之前的值，时间就是T=N/fc，然后频率就是时间取倒数，就得到了公式fx=fc/N，这里的fc还需要进行预分频，适合测量低频信号，测周法，只用测量一个周期就能出一次结果，所以出结果的速度取决于待测信号的频率，所以一般情况下，测周法结果更新更快，由于只测一个周期，结果值会受噪声的影响，波动比较大。
(3).测频法跟测周法计次，这个计次数量N尽量大一些，N越大，相对误差越小，因为在这些方法中计次可能存在正负1误差，比如测频法，并不是每个周期信号都是完整的，比如在最后时间里，可能周期有一个刚刚出现一半，闸门时间就到了，那就只有半个周期，只能舍弃掉或者当一整个周期来看了，因为计次只有整数，不可能计次0.5个数，那在这个过程就会出现多计数一个少计数一个的情况，这就九±1误差，另外测周法也是一样的，要想多减少误差只能多计一点数，当计次N比较大时，正负1对N的影响会很小，比如你去买水，原本2元，商家卖3元，你就会觉得黑心，但是如果是电脑原本5000，卖你5001，你就会觉得无所谓了，当有一个频率，测周法和测频法的计次的N相同，就说明误差不大，这就是中界频率。
(4).那么高频和低频谁算高，谁算低呢？这就涉及到了中界频率的方法了，中界频率是测周法与测频法误差相等的频率点，公式是怎么算的，就是把测周法和测频法的N提取出来，令两个方法，N相等，把fx解出来，就得到了中界频率了，当待测信号频率<中界频率时，用测周法更适合，当待测信号频率>中界频率时，测频法更适合。
(5).测频法我们可以用之前写的对射式红外传感器，定时器外部时钟这些代码稍微改进就是测频法，比如对射式红外传感器计次，每来一个上升沿计次就+1，那我们再用定时器定时1s中断，在中断里，每隔1s取一下计次值，同时清0计次，为下一次做准备，这样每次读取的计次值就直接是频率，对应定时器外部时钟的代码也是如此，每隔1s取一下计次，就可以实现测频法测量频率的功能了，我们本文使用的是测周法。
1.4 异或门
下图是2个引脚的异或门，3个引脚的异或门：3个引脚电平都相同时输出0，3个引脚电平不相同时输出1。
1.5 定时器输入捕获的异或门
下图一位置输入捕获引脚进来，有三输入的异或门，这个异或门的输入接在了通道1，2，3端口，异或门的逻辑是三个引脚的任何一个有电平翻转时，输出引脚就产生一个电平翻转，之后输出通过数据选择器，到达输入捕获通道1，数据选择器如果选择图二的上面位置，那输入捕获通道1的输入，就是3个引脚的异或值，如果选择图三下面位置，那么异或门就没有用，4个通道各用各的引脚，设置这个异或门，其实还是为三相无刷电机服务的，无刷电机有3个霍尔传感器检测转子的位置，可以根据转子的位置进行换相，有了这个异或门，就可以在前3通道接上无刷电机的霍尔传感器，然后这个定时器就作为无刷电机的接口定时器去驱动换相电路工作。
图一
图二
图三
1.6 输入捕获框图解析2
(1).然后进行图一的滤波，避免一些高频的毛刺信号误触发，然后边沿检测器跟外部中断一样，可以选择高电平触发或者低电平触发，当出现指定的边沿检测电路时，就会触发后面电路的执行操作，这里其实设置了两套滤波和边沿检测电路，第一套电路，经过滤波和极性选择，得到TI1FP1，输入给通道1给后续电路(图二的红色位置)，第二套电路，经过另一个滤波和极性选择，得到TI1FP2，输入给通道2的后续电路(图二的蓝色位置)，同理下面的TI2信号进来，也经过两套滤波和极性选择，如图三，所以这里两个通道进来可以各走各的，也可以进行一个交叉，让CH2引脚输入给通道1或者CH1引脚输入给通道2，这么做的目的有两个，第一个是可以灵活切换后续捕获电路的输入，比如你一会想以CH1作为输入，一会想以CH2作为输入，这样就可以通过这个数据寄存器，灵活的进行选择(图四),第二个目的，也是最主要的目的，就是可以把一个引脚的输入，同时映射到两个捕获单元(图五)，这也是PWMI结构的经典结构，第一个通道，使用上升沿触发，用来捕获周期，第二个通道用来使用下降沿触发，用来捕获占空比，两个通道对一个引脚进行捕获，就可以同时测量频率和占空比，下面通道3和4也是一样的，但是同时测量占空比和频率时，通道1捕获时，其实占据了通道1和通道2，所以这时候不能使用通道2，通道3和4也是一样的道理，但是这里注意了，只有通道1和通道2有从模式(后期补充看目录1.7的图五)，所以用从模式实现硬件清0的话，只能用通道1和通道2，这里stm32f103的输入捕获通道只有通道1和2才能使用，通道3和4无法进行捕获，其他的板子暂时不知道。
(2).图六的TRC信号来源图六红圈，这个设计也是为了无刷电机。
(3).之后就来到了预分频器,可以选择对前面的信号进行分频，分频后的触发信号就可以触发捕获电路进行工作了，每来一个触发信号，CNT的值，就会向CCR转运一次，转运的同时会发生一个捕获事件，这个事件会在状态寄存器置标志位，同时也可以产生中断，如果需要在捕获瞬间，处理一些事情的话，就可以开启这个捕获中断，这就是整个电路的流程，比如我们可以设置上升沿触发捕获，每来一个上升沿，CNT转运到CCR一次，又因为这个CNT计数器是由内部标准时钟驱动的，所以CNT的数值，其实就可以来记录两个上升沿之间的时间间隔，这个时间间隔就是周期，在取个倒数，就是测周法的测量频率了。
(4).这里细节问题就是每次捕获之后，记得把CNT清0一下，这样下次上升沿再一次捕获的时候，取出的才是两个上升沿的时间间隔，要不然就包括了之前的，我们可以用主从触发模式，自动完成。
图一
图二
图三
图四
图五
图六
1.7 输入捕获通道1更详细的框图
(1).下图一是框输入捕获内部框图，引脚进来还是先经过一个滤波器，滤波器的输入是TI1，就是CH1引脚，输出的TI1F，就是滤波后的信号，fDTS是滤波器的采样时钟来源，然后CCMR1寄存器里的ICF位可以控制滤波器的参数，如图二，跟上面的滤波器一样(在目录四)，越大滤波效果越好，但是信号延迟就越大，滤波后的信号通过边沿检测器，捕获上升沿或者下降沿触发，然后用CCER寄存器里的CC1P位就可以选择极性了，最后得到TI1FP1触发信号，通过数据选择器，进入通道1后续的捕获电路，这里实际上还有一套一样的电路，得到得到TIFP2触发信号，连接通道2的后续电路，这里并没有画出来。
(2).然后经过数据选择器，进入后续的捕获部分电路，CC1S位可以对数据选择器进行选择，之后ICPS位，可以配置分频器，可以选择不分频，2分频，4分频，8分频，最后CC1E位，控制输出使能或者失能，如果使能了输出，输入端产生指定边沿信号，经过层层电路，就可以让CNT的值，转运到CCR里面来，每一次捕获都要CNT的值清0，以便下一次捕获，在这里硬件电路就可以在捕获之后完成CNT的清0工作，如果自动清0？就是这个TI1FP1信号和TI1的边沿信号都可以通向从模式控制器，这个从模式里面就有自动完成CNT清0，所以可以看出这个从模式就是完成自动化操作的利器。
(3).主从触发模式有什么用，如何完成硬件自动化的操作？主从触发模式就是主模式，从模式和触发源选择这三个功能的简称，其中主模式可以将定时器的内部信号，映射到TRGO引脚，用于触发别的外设，就叫主模式，从模式就是接收其他外设或者自身外设的一些信号，用于控制自身定时器的运行，也就是被别的信号控制，触发源选择，就是对选择从模式的触发信号源，可以认为是从模式的一部分，触发源选择，选择指定的一个信号，得到TRGI信号，TRGI去触发从模式，从模式可以在列表里面选择一项来自动执行，如果想完成刚刚说的自动清0，那触发源就可以选择TI1FP1，如何从模式执行操作就可以执行图三的RESET操作，这样TI1FP1信号就可以自动清零CNT，实现硬件自动触发。
(4).如果想实现定时器的级联，如图四，就可以选择定时器主模式输出一个更新信号到TRGO，另一个定时器
选择上一个定时器触发从模式，从模式选择执行外部时钟模式1的操作，这样就可以实现定时器的级联，我们本文使用的是让CNT清0，就是从模式的复位模式。
(5).注意：这里输入捕获从模式只有通道1和通道2才支持，也就是从模式那些只有通道1和通道2才可以设置，如图五。
图一
图二
图三
图四
图五
二.输入捕获的基本结构
2.1 输入捕获的基本结构
(1).输入捕获的GPIO口输入下图一左上角的方波信号，经过滤波器和边沿检测选择TI1FP1为上升沿为触发，之后选择直连的通道，分频器选择不分频，当TI1FP1出现上升沿之后，CNT的计数值转运到CCR1里(每个时钟周期转运一次)，同时触发源选择，选择TI1FP1为触发信号，从模式选择复位，这里有先后顺序，先转运CNT的值到CCR里去，再触发从模式给CNT清零或者是非阻塞的同时转移，CNT的值转移到CCR，同时0转运到CNT里去，总之不会是先清0，再捕获
(2).下图一中左上角的图，在这里信号会出现一个上升沿，CCR1=CNT，就是把CNT的值转运到CCR1里面去，这是输入捕获自动执行的，然后CNT=0，计数器清零，这是从模式自动执行的，然后在一个周期内，CNT在标准时钟的驱动下，不断自增，并且由于之前清零过了，所以CNT就从上升沿开始，从0开始计数，一直++，一直到下一次上升沿来临，然后执行相同的操作，CCR1=CNT，CNT=0，让CCR1的值始终保持最新一个周期的计数值，如果信号频率太低，CNT的值可能会溢出，我们从模式触发源选择只有通道1和通道2，对于通道3和通道4只有手动清零了。
(3).当捕获事件发生时，CCR1寄存器会被更新为当前定时器的计数值。这样，你可以通过读取CCR1寄存器的值来获取捕获事件的时间戳。
图一
2.2输入捕获的基本结构代码
main.c
#include "OLED.h"
#include "IC.h"
uint16_t i;
int main()
{
OLED_Init();
PWM_Init();
IC_Init();
OLED_ShowString(1,1,"Freq:00000HZ");
OLED_ShowString(3,1,"CNT:");
PWM_Setprescaler(72-1); //Freq=72M/(PSC+1) /100 此时1000hz频率，所以想修改频率就修改这里的PSC就可以了，然后输入捕获的频率fx=fc/N(ARR+1=CRR)，fx频率我们从PWM里面计算出来需要的更新频率，然后fc是输入捕获经过预分频之后的频率，N计数器计数的值就是fc/fx=N
//比如这里PWM计算1000hz的更新频率，输入捕获预分频系数是72，所以fc=72000000/72=1000000hz，1000000hz/1000hz=1000，所以就对应了下面的1000个数
PWM_SetCompare1(50); //Duty=CCR/100
while(1)
{
OLED_ShowNum(1,6,IC_GetFreq(),5);
OLED_ShowNum(3,6,TIM_GetCounter(TIM3),6);//显示输出比较计数器计了几个值
}
}
PWM.c
#include "stm32f10x.h" // Device header
void PWM_Init(void)
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
GPIO_InitTypeDef GPIO_InitStrcut;
GPIO_InitStrcut.GPIO_Mode=GPIO_Mode_AF_PP;//对于普通的开漏输出/推挽输出，引脚的控制权是来自输出数据寄存器，如果想让定时器来控制引脚，就需要使用复用开漏输出/复用推挽输出
GPIO_InitStrcut.GPIO_Pin=GPIO_Pin_0;
GPIO_InitStrcut.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStrcut);
TIM_InternalClockConfig(TIM2);
TIM_TimeBaseInitTypeDef TIM_InitStrcut;
TIM_InitStrcut.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_InitStrcut.TIM_CounterMode=TIM_CounterMode_Up;
TIM_InitStrcut.TIM_Period=100-1; //ARR=100-1是分辨率为1%，ARR如果修改会影响到占空比，如果想分辨率为0.1%，那ARR=1000-1
TIM_InitStrcut.TIM_Prescaler=720-1; //PSC预分频器
TIM_InitStrcut.TIM_RepetitionCounter=0;
TIM_TimeBaseInit(TIM2,&TIM_InitStrcut);//TIM2_CH1对应TIM_OC1Init
TIM_OCInitTypeDef TIM_OCInitStruct;
TIM_OCStructInit(&TIM_OCInitStruct);//在OCInit初始化函数中有很多参数，通用定时器用不上一些，但是不对这些值赋值的话会时PWM输出出错，所以我们可以用这个函数，它是自动赋值给OCInit函数的所有结构体变量，然后我们下面在修改需要的参数即可
//PWM模式1并且是向上计数，CNT<CCR的时候，REF置有效电平(高电平)，CNT>=CCR的时候，REF置无效电平(低电平)
TIM_OCInitStruct.TIM_OCMode=TIM_OCMode_PWM1;//输出比较模式，TIM_OCMode_Timing冻结模式，TIM_OCMode_Active相等时电平置有效电平，TIM_OCMode_Inactive相等时电平置无效电平，TIM_OCMode_Toggle相等时电平翻转，TIM_OCMode_PWM1是PWM模式1，TIM_OCMode_PWM2是PWM模式2
TIM_OCInitStruct.TIM_OCPolarity=TIM_OCPolarity_High;//TIM_OCPolarity_High是高极性，就是极性不翻转，REF波形直接输出，IM_OCPolarity_Low低极性，就是REF电平取反
TIM_OCInitStruct.TIM_OutputState=TIM_OutputState_Enable;
TIM_OCInitStruct.TIM_Pulse=90;//设置CCR寄存器
TIM_OC1Init(TIM2,&TIM_OCInitStruct);
TIM_Cmd(TIM2,ENABLE);
}
void PWM_SetCompare1(uint16_t Compare)//设置CCR寄存器的值
{
TIM_SetCompare1(TIM2,Compare);
}
void PWM_Setprescaler(uint16_t prescaler)//设置PSC预分频器的值
{
TIM_PrescalerConfig(TIM2,prescaler,TIM_PSCReloadMode_Immediate);//这个函数第一个参数是定时器，第二个参数是改变的值，第三是更新事件生效还是立刻生效，TIM_PSCReloadMode_Immediate立刻生效，TIM_PSCReloadMode_Update更新事件生效
}
PWM.h
#ifndef __PWM_H
#define __PWM_H
#include "stm32f10x.h" // Device header
void PWM_Init(void);
void PWM_SetCompare1(uint16_t Compare);
void PWM_Setprescaler(uint16_t prescaler);
#endif
IC.c
#include "stm32f10x.h" // Device header
void IC_Init(void)
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
GPIO_InitTypeDef GPIO_InitStrcut;
GPIO_InitStrcut.GPIO_Mode=GPIO_Mode_IPU;
GPIO_InitStrcut.GPIO_Pin=GPIO_Pin_6;
GPIO_InitStrcut.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStrcut);
TIM_InternalClockConfig(TIM3);
TIM_TimeBaseInitTypeDef TIM_TimeInitStruct;
TIM_TimeInitStruct.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeInitStruct.TIM_CounterMode=TIM_CounterMode_Up;
TIM_TimeInitStruct.TIM_Period=65536-1; //ARR 计数器给大一点，防止计数器溢出
TIM_TimeInitStruct.TIM_Prescaler=72-1; //PSC 标准频率=72M/72=1MHZ=1000000hz
TIM_TimeInitStruct.TIM_RepetitionCounter=0;
TIM_TimeBaseInit(TIM3,&TIM_TimeInitStruct);
TIM_ICInitTypeDef TIM_ICInitStruct;
TIM_ICInitStruct.TIM_Channel=TIM_Channel_1;//通道1
TIM_ICInitStruct.TIM_ICFilter=0x0F;
TIM_ICInitStruct.TIM_ICPolarity=TIM_ICPolarity_Rising;//边沿检测极性选择，上升沿触发，测周期
TIM_ICInitStruct.TIM_ICPrescaler=TIM_ICPSC_DIV1;
TIM_ICInitStruct.TIM_ICSelection=TIM_ICSelection_DirectTI;//数据选择器，TIM_ICSelection_DirectTI直连通道，TIM_ICSelection_IndirectTI交叉通道
TIM_ICInit(TIM3,&TIM_ICInitStruct);
TIM_SelectInputTrigger(TIM3,TIM_TS_TI1FP1);
TIM_SelectSlaveMode(TIM3,TIM_SlaveMode_Reset);//硬件清0
TIM_Cmd(TIM3,ENABLE);
}
uint32_t IC_GetFreq(void)//返回最新一个周期的频率值，而不是PWM的更新频率值
{
//单位hz，测周法fx=fc/N,N=CCR+1,TIM_GetCapture1就是返回CCR的值，这里CCR不是输出比较设置好的CCR，而是计数这段高低电平的数量，因为CCR从0开始计数，因此CCR得+1,1000000就是经过预分频之后的频率，经过测试这里会计数1000个数，然后1MHZ/1000=1000hz
return 1000000 /(TIM_GetCapture1(TIM3)+1);//单位hz，测周法fx=fc/N,N=CCR+1,TIM_GetCapture1就是返回CCR的值，因为CCR从0开始计数，因此CCR得+1
}
IC.h
#ifndef __IC_H
#define __IC_H
#include "stm32f10x.h" // Device header
void IC_Init(void);
uint32_t IC_GetFreq(void);
#endif
OLED.c
#include "stm32f10x.h"
#include "OLED_Font.h"
/*引脚配置*/
#define OLED_W_SCL(x) GPIO_WriteBit(GPIOB, GPIO_Pin_8, (BitAction)(x))
#define OLED_W_SDA(x) GPIO_WriteBit(GPIOB, GPIO_Pin_9, (BitAction)(x))
/*引脚初始化*/
void OLED_I2C_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_Init(GPIOB, &GPIO_InitStructure);
OLED_W_SCL(1);
OLED_W_SDA(1);
}
/**
* @brief I2C开始
* @param 无
* @retval 无
*/
void OLED_I2C_Start(void)
{
OLED_W_SDA(1);
OLED_W_SCL(1);
OLED_W_SDA(0);
OLED_W_SCL(0);
}
/**
* @brief I2C停止
* @param 无
* @retval 无
*/
void OLED_I2C_Stop(void)
{
OLED_W_SDA(0);
OLED_W_SCL(1);
OLED_W_SDA(1);
}
/**
* @brief I2C发送一个字节
* @param Byte 要发送的一个字节
* @retval 无
*/
void OLED_I2C_SendByte(uint8_t Byte)
{
uint8_t i;
for (i = 0; i < 8; i++)
{
OLED_W_SDA(Byte & (0x80 >> i));
OLED_W_SCL(1);
OLED_W_SCL(0);
}
OLED_W_SCL(1); //额外的一个时钟，不处理应答信号
OLED_W_SCL(0);
}
/**
* @brief OLED写命令
* @param Command 要写入的命令
* @retval 无
*/
void OLED_WriteCommand(uint8_t Command)
{
OLED_I2C_Start();
OLED_I2C_SendByte(0x78); //从机地址
OLED_I2C_SendByte(0x00); //写命令
OLED_I2C_SendByte(Command);
OLED_I2C_Stop();
}
/**
* @brief OLED写数据
* @param Data 要写入的数据
* @retval 无
*/
void OLED_WriteData(uint8_t Data)
{
OLED_I2C_Start();
OLED_I2C_SendByte(0x78); //从机地址
OLED_I2C_SendByte(0x40); //写数据
OLED_I2C_SendByte(Data);
OLED_I2C_Stop();
}
/**
* @brief OLED设置光标位置
* @param Y 以左上角为原点，向下方向的坐标，范围：0~7
* @param X 以左上角为原点，向右方向的坐标，范围：0~127
* @retval 无
*/
void OLED_SetCursor(uint8_t Y, uint8_t X)
{
OLED_WriteCommand(0xB0 | Y); //设置Y位置
OLED_WriteCommand(0x10 | ((X & 0xF0) >> 4)); //设置X位置高4位
OLED_WriteCommand(0x00 | (X & 0x0F)); //设置X位置低4位
}
/**
* @brief OLED清屏
* @param 无
* @retval 无
*/
void OLED_Clear(void)
{
uint8_t i, j;
for (j = 0; j < 8; j++)
{
OLED_SetCursor(j, 0);
for(i = 0; i < 128; i++)
{
OLED_WriteData(0x00);
}
}
}
/**
* @brief OLED显示一个字符
* @param Line 行位置，范围：1~4
* @param Column 列位置，范围：1~16
* @param Char 要显示的一个字符，范围：ASCII可见字符
* @retval 无
*/
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char)
{
uint8_t i;
OLED_SetCursor((Line - 1) * 2, (Column - 1) * 8); //设置光标位置在上半部分
for (i = 0; i < 8; i++)
{
OLED_WriteData(OLED_F8x16[Char - ' '][i]); //显示上半部分内容
}
OLED_SetCursor((Line - 1) * 2 + 1, (Column - 1) * 8); //设置光标位置在下半部分
for (i = 0; i < 8; i++)
{
OLED_WriteData(OLED_F8x16[Char - ' '][i + 8]); //显示下半部分内容
}
}
/**
* @brief OLED显示字符串
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param String 要显示的字符串，范围：ASCII可见字符
* @retval 无
*/
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String)
{
uint8_t i;
for (i = 0; String[i] != '\0'; i++)
{
OLED_ShowChar(Line, Column + i, String[i]);
}
}
/**
* @brief OLED次方函数
* @retval 返回值等于X的Y次方
*/
uint32_t OLED_Pow(uint32_t X, uint32_t Y)
{
uint32_t Result = 1;
while (Y--)
{
Result *= X;
}
return Result;
}
/**
* @brief OLED显示数字（十进制，正数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：0~4294967295
* @param Length 要显示数字的长度，范围：1~10
* @retval 无
*/
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
uint8_t i;
for (i = 0; i < Length; i++)
{
OLED_ShowChar(Line, Column + i, Number / OLED_Pow(10, Length - i - 1) % 10 + '0');
}
}
/**
* @brief OLED显示数字（十进制，带符号数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：-2147483648~2147483647
* @param Length 要显示数字的长度，范围：1~10
* @retval 无
*/
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length)
{
uint8_t i;
uint32_t Number1;
if (Number >= 0)
{
OLED_ShowChar(Line, Column, '+');
Number1 = Number;
}
else
{
OLED_ShowChar(Line, Column, '-');
Number1 = -Number;
}
for (i = 0; i < Length; i++)
{
OLED_ShowChar(Line, Column + i + 1, Number1 / OLED_Pow(10, Length - i - 1) % 10 + '0');
}
}
/**
* @brief OLED显示数字（十六进制，正数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：0~0xFFFFFFFF
* @param Length 要显示数字的长度，范围：1~8
* @retval 无
*/
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
uint8_t i, SingleNumber;
for (i = 0; i < Length; i++)
{
SingleNumber = Number / OLED_Pow(16, Length - i - 1) % 16;
if (SingleNumber < 10)
{
OLED_ShowChar(Line, Column + i, SingleNumber + '0');
}
else
{
OLED_ShowChar(Line, Column + i, SingleNumber - 10 + 'A');
}
}
}
/**
* @brief OLED显示数字（二进制，正数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：0~1111 1111 1111 1111
* @param Length 要显示数字的长度，范围：1~16
* @retval 无
*/
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
uint8_t i;
for (i = 0; i < Length; i++)
{
OLED_ShowChar(Line, Column + i, Number / OLED_Pow(2, Length - i - 1) % 2 + '0');
}
}
/**
* @brief OLED初始化
* @param 无
* @retval 无
*/
void OLED_Init(void)
{
uint32_t i, j;
for (i = 0; i < 1000; i++) //上电延时
{
for (j = 0; j < 1000; j++);
}
OLED_I2C_Init(); //端口初始化
OLED_WriteCommand(0xAE); //关闭显示
OLED_WriteCommand(0xD5); //设置显示时钟分频比/振荡器频率
OLED_WriteCommand(0x80);
OLED_WriteCommand(0xA8); //设置多路复用率
OLED_WriteCommand(0x3F);
OLED_WriteCommand(0xD3); //设置显示偏移
OLED_WriteCommand(0x00);
OLED_WriteCommand(0x40); //设置显示开始行
OLED_WriteCommand(0xA1); //设置左右方向，0xA1正常 0xA0左右反置
OLED_WriteCommand(0xC8); //设置上下方向，0xC8正常 0xC0上下反置
OLED_WriteCommand(0xDA); //设置COM引脚硬件配置
OLED_WriteCommand(0x12);
OLED_WriteCommand(0x81); //设置对比度控制
OLED_WriteCommand(0xCF);
OLED_WriteCommand(0xD9); //设置预充电周期
OLED_WriteCommand(0xF1);
OLED_WriteCommand(0xDB); //设置VCOMH取消选择级别
OLED_WriteCommand(0x30);
OLED_WriteCommand(0xA4); //设置整个显示打开/关闭
OLED_WriteCommand(0xA6); //设置正常/倒转显示
OLED_WriteCommand(0x8D); //设置充电泵
OLED_WriteCommand(0x14);
OLED_WriteCommand(0xAF); //开启显示
OLED_Clear(); //OLED清屏
}
OLED.h
#ifndef __OLED_H
#define __OLED_H
#include "stm32f10x.h" // Device header
void OLED_Init(void);
void OLED_Clear(void);
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char);
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String);
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length);
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
#endif
OLED_Font.h
#ifndef __OLED_FONT_H
#define __OLED_FONT_H
#include "stm32f10x.h" // Device header
/*OLED字模库，宽8像素，高16像素*/
const uint8_t OLED_F8x16[][16]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,
0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,
0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,
0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,
0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,
0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,
0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,
0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,
0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,
0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,
0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,
0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,
0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,
0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,
0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,
0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,
0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,
0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,
0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,
0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,
0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,
0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,
0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,
0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,
0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,
0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,
0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,
0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,
0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,
0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,
0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,
0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,
0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,
0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,
0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,
0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,
0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,
0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,
0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,
0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,
0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,
0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,
0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,
0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,
0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,
0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,
0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,
0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,
0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,
0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,
0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,
0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,
0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,
0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,
0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,
0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,
0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,
0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};
#endif
三.PWMI基本结构
3.1 结构
(1).这里PWMI模式，使用了两个通道同时捕获一个引脚，就是可以把一个引脚的输入，同时映射到两个捕获单元，这也是PWMI结构的经典结构，第一个通道，使用上升沿触发，用来捕获周期，第二个通道用来使用下降沿触发，用来捕获占空比，两个通道对一个引脚进行捕获，就可以同时测量频率和占空比。
(2).最开始上升沿，CCR1捕获，同时清零CNT，之后CNT一直++，然后在下降沿这个时刻，触发CCR2捕获，所以这时CCR2的值就是CNT从上升沿计到下降沿的值，就是高电平期间的计数值，CCR2捕获并不触发CNT清零，所以CNT继续++，直到下一次上升沿，CCR1捕获周期，CNT清零，这样执行以后，CCR1就是一整个周期的计数值，CCR2就是高电平期间的计数值，我们用CCR2/CCR1，就是占空比了，这就是PWMI模式，使用两个通道来捕获频率和占空比的思路。
3.2 代码
main.c
include "stm32f10x.h" // Device header
#include "PWM.h"
#include "OLED.h"
#include "IC.h"
uint16_t i;
int main()
{
OLED_Init();
PWM_Init();
IC_Init();
OLED_ShowString(1,1,"Freq:00000HZ");
OLED_ShowString(2,1,"Duty:00%");
OLED_ShowString(3,1,"CNT:");
OLED_ShowString(4,1,"PSC:");
PWM_Setprescaler(720-1); //Freq=72M/(PSC+1) /100 此时1000hz频率，所以想修改频率就修改这里的PSC就可以了，然后输入捕获的频率fx=fc/N(ARR+1=CRR)，fx频率我们从PWM里面计算出来需要的更新频率，然后fc是输入捕获经过预分频之后的频率，N计数器计数的值就是fc/fx=N
//比如这里PWM计算1000hz的更新频率，输入捕获预分频系数是72，所以fc=72000000/72=1000000hz，1000000hz/1000hz=1000，所以就对应了下面的1000个数
PWM_SetCompare1(50); //Duty=CCR/100
while(1)
{
OLED_ShowNum(1,6,IC_GetFreq(),5);
OLED_ShowNum(2,6,IC_GetDuty(),2);
OLED_ShowNum(3,6,TIM_GetCounter(TIM3)+1,6);//显示输出比较计数器计了几个值
OLED_ShowNum(4,6,TIM_GetCapture1(TIM3)+1,6);
}
}
PWM.c
#include "stm32f10x.h" // Device header
void PWM_Init(void)
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
GPIO_InitTypeDef GPIO_InitStrcut;
GPIO_InitStrcut.GPIO_Mode=GPIO_Mode_AF_PP;//对于普通的开漏输出/推挽输出，引脚的控制权是来自输出数据寄存器，如果想让定时器来控制引脚，就需要使用复用开漏输出/复用推挽输出
GPIO_InitStrcut.GPIO_Pin=GPIO_Pin_0;
GPIO_InitStrcut.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStrcut);
TIM_InternalClockConfig(TIM2);
TIM_TimeBaseInitTypeDef TIM_InitStrcut;
TIM_InitStrcut.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_InitStrcut.TIM_CounterMode=TIM_CounterMode_Up;
TIM_InitStrcut.TIM_Period=100-1; //ARR=100-1是分辨率为1%，ARR如果修改会影响到占空比，如果想分辨率为0.1%，那ARR=1000-1
TIM_InitStrcut.TIM_Prescaler=720-1; //PSC预分频器
TIM_InitStrcut.TIM_RepetitionCounter=0;
TIM_TimeBaseInit(TIM2,&TIM_InitStrcut);//TIM2_CH1对应TIM_OC1Init
TIM_OCInitTypeDef TIM_OCInitStruct;
TIM_OCStructInit(&TIM_OCInitStruct);//在OCInit初始化函数中有很多参数，通用定时器用不上一些，但是不对这些值赋值的话会时PWM输出出错，所以我们可以用这个函数，它是自动赋值给OCInit函数的所有结构体变量，然后我们下面在修改需要的参数即可
//PWM模式1并且是向上计数，CNT<CCR的时候，REF置有效电平(高电平)，CNT>=CCR的时候，REF置无效电平(低电平)
TIM_OCInitStruct.TIM_OCMode=TIM_OCMode_PWM1;//输出比较模式，TIM_OCMode_Timing冻结模式，TIM_OCMode_Active相等时电平置有效电平，TIM_OCMode_Inactive相等时电平置无效电平，TIM_OCMode_Toggle相等时电平翻转，TIM_OCMode_PWM1是PWM模式1，TIM_OCMode_PWM2是PWM模式2
TIM_OCInitStruct.TIM_OCPolarity=TIM_OCPolarity_High;//TIM_OCPolarity_High是高极性，就是极性不翻转，REF波形直接输出，IM_OCPolarity_Low低极性，就是REF电平取反
TIM_OCInitStruct.TIM_OutputState=TIM_OutputState_Enable;
TIM_OCInitStruct.TIM_Pulse=90;//设置CCR寄存器
TIM_OC1Init(TIM2,&TIM_OCInitStruct);
TIM_Cmd(TIM2,ENABLE);
}
void PWM_SetCompare1(uint16_t Compare)//设置CCR寄存器的值
{
TIM_SetCompare1(TIM2,Compare);
}
void PWM_Setprescaler(uint16_t prescaler)//设置PSC预分频器的值
{
TIM_PrescalerConfig(TIM2,prescaler,TIM_PSCReloadMode_Immediate);//这个函数第一个参数是定时器，第二个参数是改变的值，第三是更新事件生效还是立刻生效，TIM_PSCReloadMode_Immediate立刻生效，TIM_PSCReloadMode_Update更新事件生效
}
PWM.h
#ifndef __PWM_H
#define __PWM_H
#include "stm32f10x.h" // Device header
void PWM_Init(void);
void PWM_SetCompare1(uint16_t Compare);
void PWM_Setprescaler(uint16_t prescaler);
#endif
IC.c
#include "stm32f10x.h" // Device header
void IC_Init(void)
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
GPIO_InitTypeDef GPIO_InitStrcut;
GPIO_InitStrcut.GPIO_Mode=GPIO_Mode_IPU;
GPIO_InitStrcut.GPIO_Pin=GPIO_Pin_6;
GPIO_InitStrcut.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStrcut);
TIM_InternalClockConfig(TIM3);
TIM_TimeBaseInitTypeDef TIM_TimeInitStruct;
TIM_TimeInitStruct.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeInitStruct.TIM_CounterMode=TIM_CounterMode_Up;
TIM_TimeInitStruct.TIM_Period=65536-1; //ARR 计数器给大一点，防止计数器溢出
TIM_TimeInitStruct.TIM_Prescaler=72-1; //PSC 标准频率=72M/72=1MHZ=1000000hz
TIM_TimeInitStruct.TIM_RepetitionCounter=0;
TIM_TimeBaseInit(TIM3,&TIM_TimeInitStruct);
TIM_ICInitTypeDef TIM_ICInitStruct;
TIM_ICInitStruct.TIM_Channel=TIM_Channel_1;//通道1
TIM_ICInitStruct.TIM_ICFilter=0x0F;
TIM_ICInitStruct.TIM_ICPolarity=TIM_ICPolarity_Rising;//边沿检测极性选择，上升沿触发，测周期
TIM_ICInitStruct.TIM_ICPrescaler=TIM_ICPSC_DIV1;
TIM_ICInitStruct.TIM_ICSelection=TIM_ICSelection_DirectTI;//数据选择器，TIM_ICSelection_DirectTI直连通道，TIM_ICSelection_IndirectTI交叉通道
TIM_ICInit(TIM3,&TIM_ICInitStruct);
TIM_PWMIConfig(TIM3,&TIM_ICInitStruct);//会自动把剩下的一个通道初始化成相反的配置，这里传入通道1直连，上升沿，那就会自动配置通道2交叉，下降沿，这个函数只支持通道1和2的配置
// TIM_ICInitStruct.TIM_Channel=TIM_Channel_2;//通道2
// TIM_ICInitStruct.TIM_ICFilter=0x0F;
// TIM_ICInitStruct.TIM_ICPolarity=TIM_ICPolarity_Falling;//边沿检测极性选择，下降沿触发，测占空比
// TIM_ICInitStruct.TIM_ICPrescaler=TIM_ICPSC_DIV1;
// TIM_ICInitStruct.TIM_ICSelection=TIM_ICSelection_IndirectTI;//数据选择器，TIM_ICSelection_DirectTI直连通道，TIM_ICSelection_IndirectTI交叉通道
// TIM_ICInit(TIM3,&TIM_ICInitStruct);
TIM_SelectInputTrigger(TIM3,TIM_TS_TI1FP1);
TIM_SelectSlaveMode(TIM3,TIM_SlaveMode_Reset);//硬件清0
TIM_Cmd(TIM3,ENABLE);
}
uint32_t IC_GetFreq(void)//返回最新一个周期的频率值，而不是PWM的更新频率值
{
//单位hz，测周法fx=fc/N,N=CCR+1,TIM_GetCapture1就是返回CCR的值，这里CCR不是输出比较设置好的CCR，而是计数这段高低电平的数量，因为CCR从0开始计数，因此CCR得+1,1000000就是经过预分频之后的频率，经过测试这里会计数1000个数，然后1MHZ/1000=1000hz
return 1000000 /(TIM_GetCapture1(TIM3)+1);
}
uint32_t IC_GetDuty(void)//占空比,这里只是负责返回，设置占空比不在这里设置
{
return (TIM_GetCapture2(TIM3) + 1)*100 /(TIM_GetCapture1(TIM3) + 1);//CCR2+1/CCR1+1,乘100是让他以百分比的形式出现
}
IC.h
#ifndef __IC_H
#define __IC_H
#include "stm32f10x.h" // Device header
void IC_Init(void);
uint32_t IC_GetFreq(void);
uint32_t IC_GetDuty(void);
#endif
OLED.c
#include "stm32f10x.h"
#include "OLED_Font.h"
/*引脚配置*/
#define OLED_W_SCL(x) GPIO_WriteBit(GPIOB, GPIO_Pin_8, (BitAction)(x))
#define OLED_W_SDA(x) GPIO_WriteBit(GPIOB, GPIO_Pin_9, (BitAction)(x))
/*引脚初始化*/
void OLED_I2C_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_Init(GPIOB, &GPIO_InitStructure);
OLED_W_SCL(1);
OLED_W_SDA(1);
}
/**
* @brief I2C开始
* @param 无
* @retval 无
*/
void OLED_I2C_Start(void)
{
OLED_W_SDA(1);
OLED_W_SCL(1);
OLED_W_SDA(0);
OLED_W_SCL(0);
}
/**
* @brief I2C停止
* @param 无
* @retval 无
*/
void OLED_I2C_Stop(void)
{
OLED_W_SDA(0);
OLED_W_SCL(1);
OLED_W_SDA(1);
}
/**
* @brief I2C发送一个字节
* @param Byte 要发送的一个字节
* @retval 无
*/
void OLED_I2C_SendByte(uint8_t Byte)
{
uint8_t i;
for (i = 0; i < 8; i++)
{
OLED_W_SDA(Byte & (0x80 >> i));
OLED_W_SCL(1);
OLED_W_SCL(0);
}
OLED_W_SCL(1); //额外的一个时钟，不处理应答信号
OLED_W_SCL(0);
}
/**
* @brief OLED写命令
* @param Command 要写入的命令
* @retval 无
*/
void OLED_WriteCommand(uint8_t Command)
{
OLED_I2C_Start();
OLED_I2C_SendByte(0x78); //从机地址
OLED_I2C_SendByte(0x00); //写命令
OLED_I2C_SendByte(Command);
OLED_I2C_Stop();
}
/**
* @brief OLED写数据
* @param Data 要写入的数据
* @retval 无
*/
void OLED_WriteData(uint8_t Data)
{
OLED_I2C_Start();
OLED_I2C_SendByte(0x78); //从机地址
OLED_I2C_SendByte(0x40); //写数据
OLED_I2C_SendByte(Data);
OLED_I2C_Stop();
}
/**
* @brief OLED设置光标位置
* @param Y 以左上角为原点，向下方向的坐标，范围：0~7
* @param X 以左上角为原点，向右方向的坐标，范围：0~127
* @retval 无
*/
void OLED_SetCursor(uint8_t Y, uint8_t X)
{
OLED_WriteCommand(0xB0 | Y); //设置Y位置
OLED_WriteCommand(0x10 | ((X & 0xF0) >> 4)); //设置X位置高4位
OLED_WriteCommand(0x00 | (X & 0x0F)); //设置X位置低4位
}
/**
* @brief OLED清屏
* @param 无
* @retval 无
*/
void OLED_Clear(void)
{
uint8_t i, j;
for (j = 0; j < 8; j++)
{
OLED_SetCursor(j, 0);
for(i = 0; i < 128; i++)
{
OLED_WriteData(0x00);
}
}
}
/**
* @brief OLED显示一个字符
* @param Line 行位置，范围：1~4
* @param Column 列位置，范围：1~16
* @param Char 要显示的一个字符，范围：ASCII可见字符
* @retval 无
*/
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char)
{
uint8_t i;
OLED_SetCursor((Line - 1) * 2, (Column - 1) * 8); //设置光标位置在上半部分
for (i = 0; i < 8; i++)
{
OLED_WriteData(OLED_F8x16[Char - ' '][i]); //显示上半部分内容
}
OLED_SetCursor((Line - 1) * 2 + 1, (Column - 1) * 8); //设置光标位置在下半部分
for (i = 0; i < 8; i++)
{
OLED_WriteData(OLED_F8x16[Char - ' '][i + 8]); //显示下半部分内容
}
}
/**
* @brief OLED显示字符串
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param String 要显示的字符串，范围：ASCII可见字符
* @retval 无
*/
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String)
{
uint8_t i;
for (i = 0; String[i] != '\0'; i++)
{
OLED_ShowChar(Line, Column + i, String[i]);
}
}
/**
* @brief OLED次方函数
* @retval 返回值等于X的Y次方
*/
uint32_t OLED_Pow(uint32_t X, uint32_t Y)
{
uint32_t Result = 1;
while (Y--)
{
Result *= X;
}
return Result;
}
/**
* @brief OLED显示数字（十进制，正数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：0~4294967295
* @param Length 要显示数字的长度，范围：1~10
* @retval 无
*/
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
uint8_t i;
for (i = 0; i < Length; i++)
{
OLED_ShowChar(Line, Column + i, Number / OLED_Pow(10, Length - i - 1) % 10 + '0');
}
}
/**
* @brief OLED显示数字（十进制，带符号数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：-2147483648~2147483647
* @param Length 要显示数字的长度，范围：1~10
* @retval 无
*/
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length)
{
uint8_t i;
uint32_t Number1;
if (Number >= 0)
{
OLED_ShowChar(Line, Column, '+');
Number1 = Number;
}
else
{
OLED_ShowChar(Line, Column, '-');
Number1 = -Number;
}
for (i = 0; i < Length; i++)
{
OLED_ShowChar(Line, Column + i + 1, Number1 / OLED_Pow(10, Length - i - 1) % 10 + '0');
}
}
/**
* @brief OLED显示数字（十六进制，正数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：0~0xFFFFFFFF
* @param Length 要显示数字的长度，范围：1~8
* @retval 无
*/
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
uint8_t i, SingleNumber;
for (i = 0; i < Length; i++)
{
SingleNumber = Number / OLED_Pow(16, Length - i - 1) % 16;
if (SingleNumber < 10)
{
OLED_ShowChar(Line, Column + i, SingleNumber + '0');
}
else
{
OLED_ShowChar(Line, Column + i, SingleNumber - 10 + 'A');
}
}
}
/**
* @brief OLED显示数字（二进制，正数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：0~1111 1111 1111 1111
* @param Length 要显示数字的长度，范围：1~16
* @retval 无
*/
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
uint8_t i;
for (i = 0; i < Length; i++)
{
OLED_ShowChar(Line, Column + i, Number / OLED_Pow(2, Length - i - 1) % 2 + '0');
}
}
/**
* @brief OLED初始化
* @param 无
* @retval 无
*/
void OLED_Init(void)
{
uint32_t i, j;
for (i = 0; i < 1000; i++) //上电延时
{
for (j = 0; j < 1000; j++);
}
OLED_I2C_Init(); //端口初始化
OLED_WriteCommand(0xAE); //关闭显示
OLED_WriteCommand(0xD5); //设置显示时钟分频比/振荡器频率
OLED_WriteCommand(0x80);
OLED_WriteCommand(0xA8); //设置多路复用率
OLED_WriteCommand(0x3F);
OLED_WriteCommand(0xD3); //设置显示偏移
OLED_WriteCommand(0x00);
OLED_WriteCommand(0x40); //设置显示开始行
OLED_WriteCommand(0xA1); //设置左右方向，0xA1正常 0xA0左右反置
OLED_WriteCommand(0xC8); //设置上下方向，0xC8正常 0xC0上下反置
OLED_WriteCommand(0xDA); //设置COM引脚硬件配置
OLED_WriteCommand(0x12);
OLED_WriteCommand(0x81); //设置对比度控制
OLED_WriteCommand(0xCF);
OLED_WriteCommand(0xD9); //设置预充电周期
OLED_WriteCommand(0xF1);
OLED_WriteCommand(0xDB); //设置VCOMH取消选择级别
OLED_WriteCommand(0x30);
OLED_WriteCommand(0xA4); //设置整个显示打开/关闭
OLED_WriteCommand(0xA6); //设置正常/倒转显示
OLED_WriteCommand(0x8D); //设置充电泵
OLED_WriteCommand(0x14);
OLED_WriteCommand(0xAF); //开启显示
OLED_Clear(); //OLED清屏
}
OLED.h
#ifndef __OLED_H
#define __OLED_H
#include "stm32f10x.h" // Device header
void OLED_Init(void);
void OLED_Clear(void);
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char);
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String);
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length);
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
#endif
OLED_Font.h
#ifndef __OLED_FONT_H
#define __OLED_FONT_H
#include "stm32f10x.h" // Device header
/*OLED字模库，宽8像素，高16像素*/
const uint8_t OLED_F8x16[][16]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,
0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,
0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,
0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,
0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,
0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,
0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,
0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,
0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,
0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,
0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,
0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,
0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,
0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,
0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,
0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,
0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,
0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,
0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,
0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,
0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,
0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,
0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,
0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,
0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,
0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,
0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,
0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,
0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,
0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,
0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,
0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,
0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,
0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,
0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,
0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,
0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,
0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,
0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,
0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,
0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,
0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,
0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,
0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,
0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,
0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,
0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,
0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,
0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,
0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,
0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,
0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,
0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,
0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,
0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,
0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,
0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,
0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};
#endif
四.输入捕获和输出比较区别
输入比较:假设ARR＝99，那你一共计数ARR+1个值，也就是100，CRR＝30，如果是pwm模式1，也就是0-29是高电平，到了30就开始转化低电平，从30-99都是低电平，这过程中CNT不断++，虽然CNT最大值是65535，计65536个值，但是ARR设置在99，是从0一直计到99，一旦变成99立马就中断溢出，计数器自动清0，计数器（pwm）的更新频率也就是溢出频率，fx(更新频率)=fc(时钟频率)/PSC+1(预分频系数)/ARR+1(自动重装值)，预分频器和自动重装ARR和CCR都有影子寄存器，如果没有设置的话，他们的值一改变就是立刻生效，如果要等到产生更新事件才变化的话。
(2).用这个函数
TIM_OC1PreloadConfig—–CCR，这里oc1只对应CCR1的影子寄存器操作。
TIM_ARRPreloadConfig—–ARR
TIM_PrescalerConfig(TIM2,Prescaler,TIM_PSCReloadMode_Immediate);//这个函数第一个参数是定时器，第二个参数是改变的值，第三是更新事件生效还是立刻生效，TIM_PSCReloadMode_Immediate立刻生效。
(3).同一个定时器内输出比较的通道只有CCR寄存器不一样，例如CCR1,CCR2,CCR3,CCR4，但是他们的PSC,ARR,CNT都是用的同一个，所以我们多路输出PWM时，只能改变CCR。
输入捕获:
(1).捕获频率(就是PWM每次输出的高低电平，如图一,这里捕获的PWM频率是上升沿的脉冲个数)或者占空比，测周法：fx(更新频率)=fc(时钟频率)/N(CCR的值),这里的fc是经过预分频之后的时钟频率就跟输出比较一样fc/PSC+1，可以记成fx=fc/PSC+1/N，然后CCR不是跟输出比较的一样，输出比较的是设置好了值，小于大于给高低电平，输入捕获的CCR是在设置好上升沿触发或者下降沿触发，设置好上升沿触发的话，就是图二中从1开始然后到2的期间，CNT不断自增，一但CNT到达2上升沿，就把CNT计数的值给CRR，所以这里CCR好比输出比较的ARR+1，但是这里输入捕获的CRR的值跟输出比较的值不一样的,这里N就相当于计数器计了多少个值，fc/计了多少个值就等于pwm的更新频率，例如pwm的更新频率是1000hz，使用内部时钟72Mhz，输入捕获的预分频系给72，那fc=1000000，数所以计数器计数的值就是fc/fx=N,1000000/1000=1000，所以平时输入捕获计数器计数了多少个值我门不用知道，就按照fc经过预分频之后然后除TIM_GetCapture1(TIM3)+1就可以了,TIM_GetCapture1是返回CRR的值，也就是计数器的值，然后这里要的计了多少个数，所以就+1。
(2).测周法适合低频，测频法适合高频，测周法一般适合MHZ——15HZ左右，怎么看可以捕获多少，频率/计数器最大值，例如经过分频之后1000000HZ频率，然后处于计多少个数值，1000000/65536=15HZ，最小可以15HZ，经过测试1000000hz频率捕获10000HZ的误差不会很大，然后输入捕获得滤波，滤波一般选择0x00——0x80，经过测试0X0F滤波最大，但是延时高，采样容易抖动，捕获得频率会来回跳动，所以尽量靠小一点滤波适合的，延时也低的。
(3).输入捕获和输出比较不能用同一个定时器，因为要设置的ARR和PSC不一样；然后定时器中断跟输出比较定时器也是不能一样，因为我尝试过定时器中断和输入捕获一起，中断1s亮灯，也就是一直让亮着，输入捕获写同一个函数里面，输入捕获触发中断的时候，让灯保持一直灭着，但是定时器一旦到时间了，就会开始去执行定时器的任务了去亮灯。
(4).注意：这里输入捕获输入模式只有通道1才支持，也就是从模式那些只有通道1才可以设置。
(5).然后在图二，3的位置设置下降沿触发，就是从1到3就是高电平期间，然后1到3/1到4就是占空比了。
图一
图二
五.两路输出PWM，一路捕获代码
功能：一路PWM输出通过按键控制电机转速，一路PWM输出进行输入捕获
main.c
#include "stm32f10x.h" // Device header
#include "OLED.h"
#include "PWM.h"
#include "Key.h"
#include "Motor.h"
#include "IC.h"
uint8_t Keynum;
int8_t Speed;
uint8_t i;
int main()
{
OLED_Init();
Motor_Init();
Key_Init();
PWM_Init();
IC_Init();
OLED_ShowString(1,1,"Speed:");
OLED_ShowString(2,1,"Freq:00000hz");
OLED_ShowString(3,1,"Duty:00%");
PWM_SetCompare2(50);
PWM_SetPrescaler(72-1);
while(1)
{
Keynum = Key_Getnum();
if(Keynum == 1)
{
Speed =0;
}
if(Keynum == 2)
{
Speed +=20;
if(Speed > 100)
{
Speed = 0;
}
}
if(Keynum == 3)
{
Speed -=20;
if(Speed < -100)
{
Speed = 0;
}
}
OLED_ShowSignedNum(1,7,Speed,3);
OLED_ShowNum(2,6,IC_Freq(),5);
OLED_ShowNum(3,6,IC_Duty(),2);
Motor_SetSpeed(Speed);
}
}
PWM.c
#include "stm32f10x.h" // Device header
void PWM_Init(void)
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
GPIO_InitTypeDef GPIO_InitStrcut;
GPIO_InitStrcut.GPIO_Mode=GPIO_Mode_AF_PP;//对于普通的开漏输出/推挽输出，引脚的控制权是来自输出数据寄存器，如果想让定时器来控制引脚，就需要使用复用开漏输出/复用推挽输出
GPIO_InitStrcut.GPIO_Pin=GPIO_Pin_1 |GPIO_Pin_2;
GPIO_InitStrcut.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStrcut);
TIM_InternalClockConfig(TIM2);
TIM_TimeBaseInitTypeDef TIM_InitStrcut;
TIM_InitStrcut.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_InitStrcut.TIM_CounterMode=TIM_CounterMode_Up;
TIM_InitStrcut.TIM_Period=100-1; //ARR
TIM_InitStrcut.TIM_Prescaler=720-1; //PSC预分频器
TIM_InitStrcut.TIM_RepetitionCounter=0;
TIM_TimeBaseInit(TIM2,&TIM_InitStrcut);
TIM_OCInitTypeDef TIM_OCInitStruct;
TIM_OCStructInit(&TIM_OCInitStruct);//在OCInit初始化函数中有很多参数，通用定时器用不上一些，但是不对这些值赋值的话会时PWM输出出错，所以我们可以用这个函数，它是自动赋值给OCInit函数的所有结构体变量，然后我们下面在修改需要的参数即可
//PWM模式1并且是向上计数，CNT<CCR的时候，REF置有效电平(高电平)，CNT>=CCR的时候，REF置无效电平(低电平)
TIM_OCInitStruct.TIM_OCMode=TIM_OCMode_PWM1;//输出比较模式，TIM_OCMode_Timing冻结模式，TIM_OCMode_Active相等时电平置有效电平，TIM_OCMode_Inactive相等时电平置无效电平，TIM_OCMode_Toggle相等时电平翻转，TIM_OCMode_PWM1是PWM模式1，TIM_OCMode_PWM2是PWM模式2
TIM_OCInitStruct.TIM_OCPolarity=TIM_OCPolarity_High;//TIM_OCPolarity_High是高极性，就是极性不翻转，REF波形直接输出，IM_OCPolarity_Low低极性，就是REF电平取反
TIM_OCInitStruct.TIM_OutputState=TIM_OutputState_Enable;
TIM_OCInitStruct.TIM_Pulse=90;//设置CCR寄存器
TIM_OC2Init(TIM2,&TIM_OCInitStruct);
TIM_OC3Init(TIM2,&TIM_OCInitStruct);
TIM_Cmd(TIM2,ENABLE);
}
void PWM_SetCompare2(uint16_t Compare)//设置CCR2寄存器的值
{
TIM_SetCompare2(TIM2,Compare);
}
void PWM_SetCompare3(uint16_t Compare)//设置CCR3寄存器的值
{
TIM_SetCompare3(TIM2,Compare);
}
void PWM_SetPrescaler(uint16_t Prescaler)//设置PSC的值
{
TIM_PrescalerConfig(TIM2,Prescaler,TIM_PSCReloadMode_Immediate);//这个函数第一个参数是定时器，第二个参数是改变的值，第三是更新事件生效还是立刻生效，TIM_PSCReloadMode_Immediate立刻生效，TIM_PSCReloadMode_Update更新事件生效
}
PWM.h
#ifndef __PWM_H
#define __PWM_H
#include "stm32f10x.h" // Device header
void PWM_Init(void);
void PWM_SetCompare2(uint16_t Compare);
void PWM_SetCompare3(uint16_t Compare);
void PWM_SetPrescaler(uint16_t Prescaler);
#endif
IC.C
#include "stm32f10x.h" // Device header
void IC_Init(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Mode=GPIO_Mode_IPU;
GPIO_InitStruct.GPIO_Pin=GPIO_Pin_6;
GPIO_InitStruct.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStruct);
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStruct;
TIM_TimeBaseInitStruct.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeBaseInitStruct.TIM_CounterMode=TIM_CounterMode_Up;
TIM_TimeBaseInitStruct.TIM_Period=65536-1;
TIM_TimeBaseInitStruct.TIM_Prescaler=72-1;
TIM_TimeBaseInitStruct.TIM_RepetitionCounter=0;
TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStruct);
TIM_ICInitTypeDef TIM_ICInitStruct;
TIM_ICInitStruct.TIM_Channel=TIM_Channel_1;
TIM_ICInitStruct.TIM_ICFilter=0x08;
TIM_ICInitStruct.TIM_ICPolarity=TIM_ICPolarity_Rising;
TIM_ICInitStruct.TIM_ICPrescaler=TIM_ICPSC_DIV1;
TIM_ICInitStruct.TIM_ICSelection=TIM_ICSelection_DirectTI;
TIM_ICInit(TIM3,&TIM_ICInitStruct);
TIM_PWMIConfig(TIM3,&TIM_ICInitStruct);
TIM_SelectInputTrigger(TIM3,TIM_TS_TI1FP1);
TIM_SelectSlaveMode(TIM3,TIM_SlaveMode_Reset);
TIM_Cmd(TIM3,ENABLE);
}
int32_t IC_Freq(void)
{
return 1000000/(TIM_GetCapture1(TIM3)+1);
}
int32_t IC_Duty(void)
{
return (TIM_GetCapture2(TIM3)+1)*100/(TIM_GetCapture1(TIM3)+1);
}
IC.h
#ifndef __IC_H
#define __IC_H
#include "stm32f10x.h" // Device header
void IC_Init(void);
int32_t IC_Freq(void);
int32_t IC_Duty(void);
#endif
Delay.c
#include "stm32f10x.h"
/**
* @brief 微秒级延时
* @param xus 延时时长，范围：0~233015
* @retval 无
*/
void Delay_us(uint32_t xus)
{
SysTick->LOAD = 72 * xus; //设置定时器重装值
SysTick->VAL = 0x00; //清空当前计数值
SysTick->CTRL = 0x00000005; //设置时钟源为HCLK，启动定时器
while(!(SysTick->CTRL & 0x00010000)); //等待计数到0
SysTick->CTRL = 0x00000004; //关闭定时器
}
/**
* @brief 毫秒级延时
* @param xms 延时时长，范围：0~4294967295
* @retval 无
*/
void Delay_ms(uint32_t xms)
{
while(xms--)
{
Delay_us(1000);
}
}
/**
* @brief 秒级延时
* @param xs 延时时长，范围：0~4294967295
* @retval 无
*/
void Delay_s(uint32_t xs)
{
while(xs--)
{
Delay_ms(1000);
}
}
Delay.h
#ifndef __DELAY_H
#define __DELAY_H
#include "stm32f10x.h" // Device header
void Delay_us(uint32_t us);
void Delay_ms(uint32_t ms);
void Delay_s(uint32_t s);
#endif
Motor.c
#include "stm32f10x.h" // Device header
#include "PWM.h"
void Motor_Init(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_InitStruct.GPIO_Pin=GPIO_Pin_4 | GPIO_Pin_5;
GPIO_InitStruct.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStruct);//初始化电机引脚
PWM_Init();//电机的PWM
}
void Motor_SetSpeed(int8_t Speed)//如果输入的值大于等于0就正转，小于等于0就反转
{
if(Speed >= 0)
{
GPIO_SetBits(GPIOA,GPIO_Pin_4);
GPIO_ResetBits(GPIOA,GPIO_Pin_5);
PWM_SetCompare3(Speed);
}
else
{
GPIO_ResetBits(GPIOA,GPIO_Pin_4);
GPIO_SetBits(GPIOA,GPIO_Pin_5);
PWM_SetCompare3(-Speed);//CCR的值必须是正的，所以加个负号
}
}
Motor.h
#ifndef __MOTOR_H
#define __MOTOR_H
#include "stm32f10x.h" // Device header
void Motor_Init(void);
void Motor_SetSpeed(int8_t Speed);
#endif
Key.c
#include "stm32f10x.h" // Device header
#include "Delay.h"
void Key_Init(void)
{
GPIO_InitTypeDef GPIOstruct;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
GPIOstruct.GPIO_Mode=GPIO_Mode_IPU;
GPIOstruct.GPIO_Pin=(GPIO_Pin_1 | GPIO_Pin_10 | GPIO_Pin_11);
GPIOstruct.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOB,&GPIOstruct);
}
uint8_t Key_Getnum(void)
{
uint8_t Keynum = 0;
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_1) == 0)
{
Delay_ms(20);
while(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_1) == 0);
Delay_ms(20);
Keynum=1;
}
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_10) == 0)
{
Delay_ms(20);
while(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_10) == 0);
Delay_ms(20);
Keynum=2;
}
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_11) == 0)
{
Delay_ms(20);
while(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_11) == 0);
Delay_ms(20);
Keynum=3;
}
return Keynum;
}
Key.h
#ifndef __KEY_H
#define __KEY_H
#include "stm32f10x.h" // 这里定义头文件是因为uint8_t在这里面才有
void Key_Init(void);
uint8_t Key_Getnum(void);
#endif
OLED.c
#include "stm32f10x.h"
#include "OLED_Font.h"
/*引脚配置*/
#define OLED_W_SCL(x) GPIO_WriteBit(GPIOB, GPIO_Pin_8, (BitAction)(x))
#define OLED_W_SDA(x) GPIO_WriteBit(GPIOB, GPIO_Pin_9, (BitAction)(x))
/*引脚初始化*/
void OLED_I2C_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_Init(GPIOB, &GPIO_InitStructure);
OLED_W_SCL(1);
OLED_W_SDA(1);
}
/**
* @brief I2C开始
* @param 无
* @retval 无
*/
void OLED_I2C_Start(void)
{
OLED_W_SDA(1);
OLED_W_SCL(1);
OLED_W_SDA(0);
OLED_W_SCL(0);
}
/**
* @brief I2C停止
* @param 无
* @retval 无
*/
void OLED_I2C_Stop(void)
{
OLED_W_SDA(0);
OLED_W_SCL(1);
OLED_W_SDA(1);
}
/**
* @brief I2C发送一个字节
* @param Byte 要发送的一个字节
* @retval 无
*/
void OLED_I2C_SendByte(uint8_t Byte)
{
uint8_t i;
for (i = 0; i < 8; i++)
{
OLED_W_SDA(Byte & (0x80 >> i));
OLED_W_SCL(1);
OLED_W_SCL(0);
}
OLED_W_SCL(1); //额外的一个时钟，不处理应答信号
OLED_W_SCL(0);
}
/**
* @brief OLED写命令
* @param Command 要写入的命令
* @retval 无
*/
void OLED_WriteCommand(uint8_t Command)
{
OLED_I2C_Start();
OLED_I2C_SendByte(0x78); //从机地址
OLED_I2C_SendByte(0x00); //写命令
OLED_I2C_SendByte(Command);
OLED_I2C_Stop();
}
/**
* @brief OLED写数据
* @param Data 要写入的数据
* @retval 无
*/
void OLED_WriteData(uint8_t Data)
{
OLED_I2C_Start();
OLED_I2C_SendByte(0x78); //从机地址
OLED_I2C_SendByte(0x40); //写数据
OLED_I2C_SendByte(Data);
OLED_I2C_Stop();
}
/**
* @brief OLED设置光标位置
* @param Y 以左上角为原点，向下方向的坐标，范围：0~7
* @param X 以左上角为原点，向右方向的坐标，范围：0~127
* @retval 无
*/
void OLED_SetCursor(uint8_t Y, uint8_t X)
{
OLED_WriteCommand(0xB0 | Y); //设置Y位置
OLED_WriteCommand(0x10 | ((X & 0xF0) >> 4)); //设置X位置高4位
OLED_WriteCommand(0x00 | (X & 0x0F)); //设置X位置低4位
}
/**
* @brief OLED清屏
* @param 无
* @retval 无
*/
void OLED_Clear(void)
{
uint8_t i, j;
for (j = 0; j < 8; j++)
{
OLED_SetCursor(j, 0);
for(i = 0; i < 128; i++)
{
OLED_WriteData(0x00);
}
}
}
/**
* @brief OLED显示一个字符
* @param Line 行位置，范围：1~4
* @param Column 列位置，范围：1~16
* @param Char 要显示的一个字符，范围：ASCII可见字符
* @retval 无
*/
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char)
{
uint8_t i;
OLED_SetCursor((Line - 1) * 2, (Column - 1) * 8); //设置光标位置在上半部分
for (i = 0; i < 8; i++)
{
OLED_WriteData(OLED_F8x16[Char - ' '][i]); //显示上半部分内容
}
OLED_SetCursor((Line - 1) * 2 + 1, (Column - 1) * 8); //设置光标位置在下半部分
for (i = 0; i < 8; i++)
{
OLED_WriteData(OLED_F8x16[Char - ' '][i + 8]); //显示下半部分内容
}
}
/**
* @brief OLED显示字符串
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param String 要显示的字符串，范围：ASCII可见字符
* @retval 无
*/
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String)
{
uint8_t i;
for (i = 0; String[i] != '\0'; i++)
{
OLED_ShowChar(Line, Column + i, String[i]);
}
}
/**
* @brief OLED次方函数
* @retval 返回值等于X的Y次方
*/
uint32_t OLED_Pow(uint32_t X, uint32_t Y)
{
uint32_t Result = 1;
while (Y--)
{
Result *= X;
}
return Result;
}
/**
* @brief OLED显示数字（十进制，正数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：0~4294967295
* @param Length 要显示数字的长度，范围：1~10
* @retval 无
*/
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
uint8_t i;
for (i = 0; i < Length; i++)
{
OLED_ShowChar(Line, Column + i, Number / OLED_Pow(10, Length - i - 1) % 10 + '0');
}
}
/**
* @brief OLED显示数字（十进制，带符号数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：-2147483648~2147483647
* @param Length 要显示数字的长度，范围：1~10
* @retval 无
*/
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length)
{
uint8_t i;
uint32_t Number1;
if (Number >= 0)
{
OLED_ShowChar(Line, Column, '+');
Number1 = Number;
}
else
{
OLED_ShowChar(Line, Column, '-');
Number1 = -Number;
}
for (i = 0; i < Length; i++)
{
OLED_ShowChar(Line, Column + i + 1, Number1 / OLED_Pow(10, Length - i - 1) % 10 + '0');
}
}
/**
* @brief OLED显示数字（十六进制，正数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：0~0xFFFFFFFF
* @param Length 要显示数字的长度，范围：1~8
* @retval 无
*/
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
uint8_t i, SingleNumber;
for (i = 0; i < Length; i++)
{
SingleNumber = Number / OLED_Pow(16, Length - i - 1) % 16;
if (SingleNumber < 10)
{
OLED_ShowChar(Line, Column + i, SingleNumber + '0');
}
else
{
OLED_ShowChar(Line, Column + i, SingleNumber - 10 + 'A');
}
}
}
/**
* @brief OLED显示数字（二进制，正数）
* @param Line 起始行位置，范围：1~4
* @param Column 起始列位置，范围：1~16
* @param Number 要显示的数字，范围：0~1111 1111 1111 1111
* @param Length 要显示数字的长度，范围：1~16
* @retval 无
*/
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
uint8_t i;
for (i = 0; i < Length; i++)
{
OLED_ShowChar(Line, Column + i, Number / OLED_Pow(2, Length - i - 1) % 2 + '0');
}
}
/**
* @brief OLED初始化
* @param 无
* @retval 无
*/
void OLED_Init(void)
{
uint32_t i, j;
for (i = 0; i < 1000; i++) //上电延时
{
for (j = 0; j < 1000; j++);
}
OLED_I2C_Init(); //端口初始化
OLED_WriteCommand(0xAE); //关闭显示
OLED_WriteCommand(0xD5); //设置显示时钟分频比/振荡器频率
OLED_WriteCommand(0x80);
OLED_WriteCommand(0xA8); //设置多路复用率
OLED_WriteCommand(0x3F);
OLED_WriteCommand(0xD3); //设置显示偏移
OLED_WriteCommand(0x00);
OLED_WriteCommand(0x40); //设置显示开始行
OLED_WriteCommand(0xA1); //设置左右方向，0xA1正常 0xA0左右反置
OLED_WriteCommand(0xC8); //设置上下方向，0xC8正常 0xC0上下反置
OLED_WriteCommand(0xDA); //设置COM引脚硬件配置
OLED_WriteCommand(0x12);
OLED_WriteCommand(0x81); //设置对比度控制
OLED_WriteCommand(0xCF);
OLED_WriteCommand(0xD9); //设置预充电周期
OLED_WriteCommand(0xF1);
OLED_WriteCommand(0xDB); //设置VCOMH取消选择级别
OLED_WriteCommand(0x30);
OLED_WriteCommand(0xA4); //设置整个显示打开/关闭
OLED_WriteCommand(0xA6); //设置正常/倒转显示
OLED_WriteCommand(0x8D); //设置充电泵
OLED_WriteCommand(0x14);
OLED_WriteCommand(0xAF); //开启显示
OLED_Clear(); //OLED清屏
}
OLED.h
#ifndef __OLED_H
#define __OLED_H
#include "stm32f10x.h" // Device header
void OLED_Init(void);
void OLED_Clear(void);
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char);
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String);
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length);
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
#endif
OLED_Font.h
#ifndef __OLED_FONT_H
#define __OLED_FONT_H
#include "stm32f10x.h" // Device header
/*OLED字模库，宽8像素，高16像素*/
const uint8_t OLED_F8x16[][16]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,
0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,
0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,
0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,
0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,
0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,
0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,
0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,
0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,
0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,
0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,
0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,
0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,
0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,
0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,
0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,
0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,
0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,
0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,
0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,
0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,
0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,
0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,
0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,
0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,
0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,
0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,
0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,
0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,
0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,
0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,
0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,
0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,
0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,
0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,
0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,
0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,
0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,
0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,
0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,
0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,
0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,
0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,
0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,
0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,
0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,
0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,
0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,
0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,
0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,
0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,
0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,
0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,
0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,
0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,
0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,
0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,
0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};
#endif
