the pic didt connect any inverter chip...the pic TX pin connect to the RXD pin of VDIP2 and RX pin connect to the TXD pin of the VDIP2
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the pic didt connect any inverter chip...the pic TX pin connect to the RXD pin of VDIP2 and RX pin connect to the TXD pin of the VDIP2
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How is the VDIP connected to hyper-terminal?
Dave
Always wear safety glasses while programming.
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using rs232..like the diagram you post before
Last edited by fokus_1116; - 8th March 2010 at 22:03.
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Can you make a schematic or exactly describe how everything is connected?
It might help with the guessing game
Dave
Always wear safety glasses while programming.
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thx for your help..
pic18f4550pin VDIP2pin RS232 pin
RC.7 RX AD0 TXD PIN11
RC.6 TX AD1 RXD
RC.0 I/O AD2 RTS
AD3 CONNECT TO GND
GOT ANY IDEA WHERE GOES WRONG?
Last edited by fokus_1116; - 8th March 2010 at 22:19.
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Another thing I forgot to ask that could be a concern.
What are you using for an OSC at the PIC and how are the configuation bits set?
Can you connect the PIC directly to Hyper-Terminal and receive text correctly ? If so then you know the PIC is running at the expected speed.
Try inverted mode with out a 232 chip and then try true mode with a 232 chip.
Doing these test should help find the problem.
Dave
Always wear safety glasses while programming.
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i am using 20Mhz
and may i know how to set the config bit for picbasic pro because
'__config _XT_OSC & _WDT_OFF & _PWRTE _ON & _CP_OFF'
content error when build it.
how i try connect the tx pin of the pic to hyper terminal
thank for your suggest..
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