瑞萨R8C 数码管程序

#include "led.h" #include "sfr_R8C2Lconfig.h" /* Definition of R8C/2L SFR */ unsigned char led_reg = 0; unsigned char tab[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F, // 0, 1 ,2, 3, 4, 5, 6, 7, 8, 9, 0x79, 0x71, 0x76, 0x73, 0xff}; // E, F, H, P, all void TA6932_Write(unsigned char DATA) //写数据函数 { unsigned char i; for(i=0;i<8;i++) { CLK=0; //上升沿 if(DATA&0X01) DIN=1; else DIN=0; DATA>>=1;//LSB first, MSB last CLK=1; } } void Write_COM(unsigned char cmd) //发送命令字 { STB=0; TA6932_Write(cmd); STB=1; } //add from 00h to 0fh void Write_DATA(unsigned char add,unsigned char DATA) //指定地址写入数据 { Write_COM(0x44); //0100 0100 固定地址 STB=0; TA6932_Write(0xc0|add);//1100 0000 | addr TA6932_Write(DATA); STB=1; } void init_TA6932(void) { unsigned char i; Write_COM(0x8a);//亮度1000 1010 Write_COM(0x40); //写 数据命令0100 0000 STB=0; TA6932_Write(0xc0); //写地址命令1100 0000 for(i=0; i<11; i++) //TA6932_Write(0x00); Write_DATA(i, 0x00); //make led to show nothing STB=1; delay(10); open_all(); delay(100); close_all(); } void display(unsigned char led, unsigned char number) { Write_DATA(led, number); } void turn_on_led(unsigned char number) { led_reg |= number; Write_DATA(0x0B, led_reg); //grid 11 } void turn_off_led(unsigned char number) { led_reg&= ~number; Write_DATA(0x0B, led_reg); //grid 11 } void open_all(void) { unsigned char i; for(i=0; i<11; i++) Write_DATA(i, 0xFF); led_reg = 0xff; } void close_all(void) { unsigned char i; for(i=0; i<11; i++) Write_DATA(i, 0x00); led_reg = 0x00; } void delay(unsigned char number) { unsigned char i = 0, j = 0; for (j = 0; j < number; j++) { for (j = 0; j < 200; j++) {} } }