uart0.c

来自「AVR的UCO/S-II」· C语言 代码 · 共 26 行

#define IN_UART0
#include "config.h"
//#include "uart0.h"
void  UART0Init(uint32 bps)
{
    uint16 Fdiv;
    
    PINSEL0 = (PINSEL0 & 0xfffffff0) | 0x05;    /* 选择管脚为UART0 */

    U0LCR = 0x83;                               /* 允许访问分频因子寄存器 */
    Fdiv = (Fpclk / 16) / bps;                  /* 设置波特率 */
    U0DLM = Fdiv / 256;							
	U0DLL = Fdiv % 256;						
    U0LCR = 0x03;
}   
void  uart_sendbydte(unsigned char str1)
{  
   U0THR=  str1;
   while((U0LSR&0X40)==0);


}