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Author Topic: Question: PICBasic Pro how to receive more than 2 byte of data from PC  (Read 1610 times)
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rod27cn
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« on: May 11, 2008, 06:59:24 18:59 »

Hello, Can somebody help me on how to received more than 2 bytes of data from PC using PICBasic Pro. I am using PIC16F876A.

Please advise some idea or examples.

Thanks! Smiley

Posted on: May 11, 2008, 06:57:52 18:57 - Automerged

I am using RS232 communication by the way, I forgot to mention it.
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strat
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« Reply #1 on: May 11, 2008, 09:19:09 21:19 »

You can use arrays. But the program worked on the PC must send data to Pic by byte variable.
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maddoc
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« Reply #2 on: May 12, 2008, 09:47:22 09:47 »

I use a loop in the main program to receive nonstop data.

It usually can process around 19200bps of info with those CASE statements full of code.
I use to receive data also in the CASE statements, because some commands need 1 to 50 bytes of data.
Code:

MAIN:
C = HRSIN    
IF C <> $FF THEN

;do something if it is not a start command character ( $FF )

ELSE

CMND = HRSIN
SELECT CMND

CASE X
             do something
CASE X+1
             do something
CASE X+2
             do something
CASE X+3
             do something
CASE X+100
             for z = 1 to 50
             i[z] = HRSIN
             next
             do something with that array.

ENDSELECT
ENDIF
GOTO MAIN
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