SCI串口调试助手~~~ SCI, 串口, 助手, 调试

gzs8317

我用串口调试助手想调试S12DG128模块的SCI部分，一直接收不到数据，忘版主帮忙看看程序~~~~~~~
#include /* common defines and macros */
#include /* derivative information */
#define U_char unsigned char
#define uint unsigned int
unsigned char count3=0,ch;
#define INBUF_LEN 4
unsigned char flag=0 ;
unsigned char inbuf1[INBUF_LEN];


#pragma LINK_INFO DERIVATIVE "mc9s12dg128b"

void SCI0Init(void) {

SCI0BDL = 52;

SCI0CR2 = 0x2C;

}
void send_string_com(U_char *address,U_char n)
{
U_char i;
SCI0CR2_RE=0; //接收禁止
SCI0CR2_TE=1; //发送允许
for(i=0;i=8;i++) {
while(!SCI0SR1_TC);
while(!SCI0SR1_TDRE);
SCI0DRL=*address;
// delay(1);
}
SCI0CR2_TE=0; //发送禁止
}

#pragma CODE_SEG __NEAR_SEG NON_BANKED

interrupt 20 void SCI0_interrupt(void)
{
while(SCI0SR1_RDRF)
{
inbuf1[count3]=ch;
count3++;
if( (count3==(INBUF_LEN-1)))
{
flag=1;
}
}

}
#pragma CODE_SEG DEFAULT

void main(void)
{

SCI0Init();
// init_io();
EnableInterrupts;
for(;;)
{
if(flag) //如果取数标志位已置位，就将读到的数从串口发出
{
flag=0; //取数标志位清零
send_string_com(inbuf1,INBUF_LEN);
}
} /* wait forever */
}

gzs8317

我已经把工程传上去了，帮忙看一下，谢谢~~~

gzs8317

程序经过修改已经能收到数据了，但是用十六进制发送时收到乱码，不知道为什么~~~~~
#include /* common defines and macros */
#include /* derivative information */
#define U_char unsigned char
#define uint unsigned int
//#define INBUF_LEN 1 //Êý¾Ý³¤¶È
unsigned char flag=0 ;
unsigned char inbuf1;


#pragma LINK_INFO DERIVATIVE "mc9s12dg128b"

void SCI0Init(void) {

SCI0BDL = 52;

SCI0CR2 = 0x2c;

}
void send_string_com(U_char address)
{

while(!SCI0SR1_TDRE);

SCI0DRL=address;

}

#pragma CODE_SEG __NEAR_SEG NON_BANKED

interrupt 20 void SCI0_interrupt(void)
{
while(SCI0SR1_RDRF)

{
inbuf1=SCI0DRL;

flag=1;

}
}

#pragma CODE_SEG DEFAULT

void main(void)
{

SCI0Init();

EnableInterrupts;

for(;;)

{
if(flag!=0) //如果取数标志位已置位，就将读到的数从串口发出

{

flag=0; //取数标志位清零

send_string_com(inbuf1);//,INBUF_LEN);

}

} /* wait forever */

}

strongchen

用示波器仔细看看数据的波特率和格式是否与设置的一致。

xinkon129

能问一下，为什么用你后来的那个程序，用SSCOM串口调试器，接受到的和发送的代码不一样呢？？

fjczd

问题解决了吗？

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