STM32 max7219驱动8x8led点阵点亮爱心 HAL库

材料：MAX7219点阵模块 STM32f103c8t6最小系统板

使用CUBEMX配置串行输出（SPI）

 PA1和PA3没有使用到忽略！！这里我是用的是SPI2.

点阵驱动程序：

#include "8x8led.h"
#include "spi.h"

uint8_t code_table[]=
{0x00,0x6C,0x92,0x82,0x44,0x28,0x10,0x00};


void Write_Byte(uint8_t DATA)
{
	  HAL_GPIO_WritePin(GPIOA,PIN_CS,GPIO_PIN_RESET);
		HAL_SPI_Transmit(&hspi2,&DATA,1,0xfff);
}

void Write_Max7219(uint8_t addr,uint8_t dat)
{
	Write_Byte(addr);
	Write_Byte(dat);
	HAL_GPIO_WritePin(GPIOA,PIN_CS,GPIO_PIN_SET);
}

void Init_Max7219(void)
{
	Write_Max7219(0x09, 0x00);
	Write_Max7219(0x0a, 0x03);
	Write_Max7219(0x0b, 0x07);
	Write_Max7219(0x0c, 0x01);
	Write_Max7219(0x0f, 0x00);
}

main函数里在while(1)前添加下面这段代码即可

 /* USER CODE BEGIN 2 */
HAL_Delay(50);
Init_Max7219();
for(i=1;i<9;i++)
{
	Write_Max7219(i,code_table[i-1]);
}
  /* USER CODE END 2 */

程序压缩包链接：https://pan.baidu.com/s/1gpcoirRwXM3Nl8vShIICzg

提取码：28w8

标签：max7219,Max7219,HAL,PIN,8x8led,void,Write,GPIO
来源： https://blog.csdn.net/qq_44484466/article/details/119087663