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You definitely do not want to enable the hardware USART if you want to use any bit-banged serial routines like SEROUT/SERIN or SEROUT2/SERIN2 on the hardware RX/TX pins.
Enabling the hardware USART prevents you from using the TX/RX pins as digital, so bit-banged serial commands can't control these pins.
And double-check your connections to the ST232. I suspect you have TX and RX backwards.
Last edited by Bruce; - 3rd February 2011 at 20:57. Reason: ST232 Connections
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he is using this board http://www.olimex.com/dev/pic-p28.html so wiring should be correct. (for the hardware serial port that is)Originally Posted by Bruce
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Pin 17, TX on the PIC, should connect to pin 10 on the 232.
Pin 18, RX on the PIC, should connect to pin 12 on the 232.
Not the other way around like he states in his 1st post.
Last edited by Bruce; - 4th February 2011 at 00:24.
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