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  Topic: PIC24F 8M internal oscillator and UART speed problem
mad_zero

Replies: 7
Views: 13654
 PostForum: General CCS C Discussion   Posted: Thu May 28, 2015 5:08 am   Subject: PIC24F 8M internal oscillator and UART speed problem
OK, I found the problem. It was in received data handler function. Thanks Ttelmah for telling me to look for a problem somewhere else, not in UART setup. =]
  Topic: PIC24F 8M internal oscillator and UART speed problem
mad_zero

Replies: 7
Views: 13654
 PostForum: General CCS C Discussion   Posted: Wed May 27, 2015 8:23 am   Subject: PIC24F 8M internal oscillator and UART speed problem
Add BRGH1OK to the RS232 declaration.

This should really always be present _on any chip which does not have the BRGH problem_, when trying to synthesise high rates.

Without this, on your chip at ...
  Topic: PIC24F 8M internal oscillator and UART speed problem
mad_zero

Replies: 7
Views: 13654
 PostForum: General CCS C Discussion   Posted: Wed May 27, 2015 7:12 am   Subject: PIC24F 8M internal oscillator and UART speed problem
try using a real xtal and 2 caps as the 'clock' source.
The internal oscillator ain't great though I'd expect it to be better.
Using a real xtal ,even for test purposes will shed more light on the ...
  Topic: PIC24F 8M internal oscillator and UART speed problem
mad_zero

Replies: 7
Views: 13654
 PostForum: General CCS C Discussion   Posted: Wed May 27, 2015 6:38 am   Subject: PIC24F 8M internal oscillator and UART speed problem
PCWDH 5.045

UART communication speed problems.

PIC24F16KA102 communicating with XBee module over UART.
8MHz internal clock.
It only operates reasonably well at 115200 but still have high erro ...
 
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