UART.rar_ht66f50

#include "HT66F50.h" #define TXD PA0 #define RXD PC0 const unsigned char Table[10] ="A B C D "; void Sim_UartTx(unsigned char Data); void delay_ms(unsigned int dly); void main() { unsigned char i,u; unsigned char j; //bit計數 unsigned char buff; //資料緩衝 _cp0c=0x08;//設定cp1c為I/O模式 _cp1c=0x08;//設定cp1c為I/O模式 _acerl = 0; _scomen = 0; _tmpc0 = 0b00000000; _tmpc1 = 0b00000000; _pdc = 0x00; _pfc = 0x01; _pcc = 0x00; _pac = 0x00; while(1) { for(u=0;u<8;u++) { Sim_UartTx(Table[u]); } delay_ms(500); //延時，字串間隔時間 } } void Sim_UartTx(unsigned char Data) { unsigned char i; TXD=0; _delay(90); //發射啟始位元 for(i=0; i<8; i++) //發射8-bit串列資料 { if(Data & 0x01) TXD=1; //若buff資料bit0=1則發射1 else TXD=0; //若buff資料bit0=0則發射0 Data >>= 1; //資料右移換下1個bit _delay(90); //延時 } TXD=1; _delay(90); //發射停止位元 } void delay_ms(unsigned int dly)//以ms為單位的延時函數 { // unsigned int dly1; while(dly--) _delay(981); _nop(); _nop(); _nop(); }