STM32 驱动TM1650 程序源码

以下是STM32驱动TM1650的程序源码，仅供参考：

#include "stm32f10x.h"
#include "stdio.h"

#define SDA_OUT()  GPIOB->CRL &= 0XFF0FFFFF; GPIOB->CRL |= 0X00300000
#define SDA_IN()   GPIOB->CRL &= 0XFF0FFFFF; GPIOB->CRL |= 0X00800000

#define TM1650_SCL_H() GPIOB->BSRR = GPIO_Pin_12
#define TM1650_SCL_L() GPIOB->BRR = GPIO_Pin_12

#define TM1650_SDA_H() GPIOB->BSRR = GPIO_Pin_13
#define TM1650_SDA_L() GPIOB->BRR = GPIO_Pin_13

u8 TM1650_Table[] = {0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, 0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71};

void TM1650_Start(void)
{
    SDA_OUT();
    TM1650_SDA_H();
    TM1650_SCL_H();
    delay_us(2);
    TM1650_SDA_L();
    delay_us(2);
    TM1650_SCL_L();
    delay_us(2);
}

void TM1650_Stop(void)
{
    SDA_OUT();
    TM1650_SCL_L();
    TM1650_SDA_L();
    delay_us(2);
    TM1650_SCL_H();
    TM1650_SDA_H();
    delay_us(2);
}

void TM1650_WriteByte(u8 dat)
{
    u8 i;
    SDA_OUT();
    for(i=0; i<8; i++)
    {
        if((dat<<i)&0x80) TM1650_SDA_H();
        else TM1650_SDA_L();
        delay_us(2);
        TM1650_SCL_H();
        delay_us(2);
        TM1650_SCL_L();
        delay_us(2);
    }
}

void TM1650_Display(u8 *buf)
{
    u8 i;
    TM1650_Start();
    TM1650_WriteByte(0x44);
    TM1650_Stop();
    TM1650_Start();
    TM1650_WriteByte(0x40);
    for(i=0; i<4; i++)
    {
        TM1650_WriteByte(TM1650_Table[buf[i]]);
    }
    TM1650_Stop();
    TM1650_Start();
    TM1650_WriteByte(0x8f);
    TM1650_Stop();
}

int main(void)
{
    u8 buf[4] = {0, 1, 2, 3};
    GPIO_InitTypeDef GPIO_InitStructure;
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_Init(GPIOB, &GPIO_InitStructure);
    while(1)
    {
        buf[0]++;
        if(buf[0] > 9)
        {
            buf[0] = 0;
            buf[1]++;
        }
        if(buf[1] > 9)
        {
            buf[1] = 0;
            buf[2]++;
        }
        if(buf[2] > 9)
        {
            buf[2] = 0;
            buf[3]++;
        }
        if(buf[3] > 9)
        {
            buf[3] = 0;
        }
        TM1650_Display(buf);
        delay_ms(500);
    }
}

注：上述代码仅供参考，具体实现方式可能因不同的STM32型号和开发板而有所不同。