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Altera_Forum's avatar
Altera_Forum
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13 years ago

RS232C Packet Loss

Hello, I am working with my custom board, and having problem communicating via RS232C. In very rare occasion, commands seems to be ignored, lost, or thrown away. My C code is some...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Hi, I modified my codes as below,

and it's working fine so far.

Just simply replaced scanf() to file descriptor.

===

n=0;

while(1)

{

////////scanf(%s, cmd);

fread(&cmd[n], 1, 1, fs);

if(cmd[n] == 0x0a){//LF

cmd[n] = 0;

break;

}

n++;

printf("packet received\n");

}

===

I guess scanf() is doing something bad in my case..

mmTsuchi & dsl, Thanks for your support!