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stm32版八位串行595数码管 #include "sys.h" //点击魔术棒加入对应的文件夹地址，FWLIB里加入相应的头文件 #include "delay.h" #include "usart.h" #include "led.h" #include "key.h" //////////////////////////////////////////////////////////////////////////// unsigned char fseg[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}; unsigned char segbit[]={0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01}; unsigned char disbuf[8]={0,0,0,0,0,0,0,0}; #define uchar unsigned char #define DIO LED0//串行数据输入 #define RCLK LED1 //时钟脉冲信号——上升沿有效 #define SCLK LED2//打入信号————上升沿有效 void LED4_Display (void); // LED显示 void LED_OUT(uchar X); // LED单字节串行移位函数 void data_OUT(int data); unsigned char LED_0F[]; // LED字模表 //----------------------------------------------------------------------------- // 全局变量 uchar LED[8]; //用于LED的8位显示缓存 /////////////////////////////////////////////////////////////////////////////////// int main(void) { u8 t=0; delay_init(); //延时函数初始化 NVIC_Configuration(); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级 uart_init(9600); //串口初始化为9600 LED_Init(); KEY_Init(); ////////////////////////////////////////////////////////// // LED[0]=0; // LED[1]=2; // LED[2]=3; // LED[3]=4; // LED[4]=5; // LED[5]=6; // LED[6]=7; // LED[7]=8; ///////////////////////////////////////////////////////////////// while(1) { LED4_Display ();//串口数码管 data_OUT(123456); // printf("love"); } } ///////////////////////////////////////////////////////////////// void LED4_Display (void) { unsigned char *led_table; // 查表指针 uchar i; //显示第1位 led_table = LED_0F + LED[0]; i = *led_table; LED_OUT(i); LED_OUT(0x01); RCLK = 0; RCLK = 1; //显示第2位 led_table = LED_0F + LED[1]; i = *led_table; LED_OUT(i); LED_OUT(0x02); RCLK = 0; RCLK = 1; //显示第3位 led_table = LED_0F + LED[2]; i = *led_table; LED_OUT(i); LED_OUT(0x04); RCLK = 0; RCLK = 1; //显示第4位 led_table = LED_0F + LED[3]; i = *led_table; LED_OUT(i); LED_OUT(0x08); RCLK = 0; RCLK = 1; //显示第5位 led_table = LED_0F + LED[4]; i = *led_table; LED_OUT(i); LED_OUT(0x10); RCLK = 0; RCLK = 1; //显示第6位 led_table = LED_0F + LED[5]; i = *led_table; LED_OUT(i); LED_OUT(0x20); RCLK = 0; RCLK = 1; //显示第7位 led_table = LED_0F + LED[6]; i = *led_table; LED_OUT(i); LED_OUT(0x40); RCLK = 0; RCLK = 1; //显示第8位 led_table = LED_0F + LED[7]; i = *led_table; LED_OUT(i); LED_OUT(0x80); RCLK = 0; RCLK = 1; } void LED_OUT(uchar X) { uchar i; for(i=8;i>=1;i--) { if (X&0x80) DIO=1; else DIO=0; X<<=1; SCLK = 0; SCLK = 1; } } void data_OUT(int data) { LED[7] = 0; LED[6] = 0; LED[5] = data % 1000000 / 100000; LED[4] = data % 100000 / 10000; // LED[3] = data % 10000 / 1000; LED[2] = data % 1000 / 100; LED[1] = data % 100 / 10; LED[0] = data % 10; } unsigned char LED_0F[] = {// 0 1 2 3 4 5 6 7 8 9 A b C d E F - 0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x8C,0xBF,0xC6,0xA1,0x86,0xFF,0xbf }; ///////////////////////////////////////////////////////////////////////////////////////////////