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Weird problem for working on 2 UARTs

 
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miskol



Joined: 01 Feb 2011
Posts: 16

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Weird problem for working on 2 UARTs
PostPosted: Fri Oct 07, 2011 7:17 pm     Reply with quote
Hey guys,

I'm using PCWHD v4.114 for programming dsPIC30F6014A. Below is my coding:

Dual UART initialization
Code:
#use rs232(UART1,baud=9600,parity=N,bits=8,xmit=PIN_F3,rcv=PIN_F2,ERRORS,stream=MCC)
#use rs232(UART2,baud=9600,parity=N,bits=8,xmit=PIN_F5,rcv=PIN_F4,ERRORS,stream=GSM)


Code:
fprintf(MCC,"test dual RS232, this is UART1\n\r");
fprintf(GSM,"test dual RS232, this is UART2\n\r");

- this froze the mC, nothing comes out of UART.

Code:
fputc(0x41,MCC); //A in Hex
fputc(0x54,GSM); //T in Hex

- works, no problem.

Code:
puts("UART1", MCC);
puts("UART2", GSM);

- works, no problem.

Code:
fprintf(MCC,"test dual UART\n\r");
fprintf(GSM,"test dual UART\n\r");

- works, no problem.


So, it seems like if string is similar for both UARTs, fprintf can work... if not, nothing comes out.

Code:
fprintf(MCC,"test dual RS232\n\r");
fprintf(GSM,"test dual RS232\n\r");
delay_ms(100);
fprintf(MCC,"test dual UART\n\r");
fprintf(GSM,"test dual UART\n\r");

- this froze the mC, nothing comes out of UART.

Even so, if needed to change the string, still cannot work.

Please help, thank you.
miskol



Joined: 01 Feb 2011
Posts: 16

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PostPosted: Thu Oct 13, 2011 8:17 am     Reply with quote
Please help anyone? Thanks.
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Thu Oct 13, 2011 1:09 pm     Reply with quote
Most people don't have the PCD compiler. I don't have it. That's why
I didn't respond. This type of problem is "right up my alley", but I can't
help you.
temtronic



Joined: 01 Jul 2010
Posts: 9225
Location: Greensville,Ontario

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PostPosted: Thu Oct 13, 2011 1:44 pm     Reply with quote
Well , I've got the compiler, but don't have any dsPICs ! So I can't help either as I only test with real chips.
miskol



Joined: 01 Feb 2011
Posts: 16

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PostPosted: Thu Oct 13, 2011 7:48 pm     Reply with quote
Noted, thanks for the responses.
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