求S12的SCI串口通信例程 例程, SCI, 串口, 通信

huashan0703

简单点的收发程序，哪位大侠有，谢谢！

 

bestruan

#include /* common defines and macros */
#include /* derivative information */

#pragma LINK_INFO DERIVATIVE "mc9s12dg128b"
extern char c;


void putchar(char c) {
SCI0CR2=0X0C; //初始化串行口//
SCI0BDH=0X00;
SCI0BDL=0X9C;

while((SCI0SR1&0X80)==0); //串口为空，输出数据//
SCI0DRL=c;}


void main(void) {
c=0x42;
putchar(c); //显示一个字符//
for(;;);

}

fjczd

这个倒是不复杂

fjczd

用Pe生成的如下

void main(void)
{
/* Write your local variable definition here */

/*** Processor Expert internal initialization. DON'T REMOVE THIS CODE!!! ***/
PE_low_level_init();
/*** End of Processor Expert internal initialization. ***/
for(;;){
err = AS1_RecvChar(&ch);
AS1_SendChar(0x55);
}

fjczd

仅供参考