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Displaying data from one i/o port

 
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lopex
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Displaying data from one i/o port
PostPosted: Mon Aug 20, 2007 12:37 am     Reply with quote
Good afternoon to all.
My question is based on data processing from one external device.

I have connected my device to my demo board on the way that one wire is used as I/O wire (connected to 16F PIN ) and all data is passed thru this wire.

My goal is to set this PIN as input and then read all data from this I/O.
The amount of data passed thru this I/O is big and continues so the only way for me is to display this data on my computer using some terminal program.

How to pass this I/O data per serial port, to some terminal program ?

LpX
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Aug 20, 2007 12:00 pm     Reply with quote
Create the code for a UART with the #use rs232() statement, as shown
below. Connect your PIC to the PC with a MAX232A chip and a cable.
Use the following program to test it. The program will display
"Hello World" in the terminal window on the PC.
Code:

#include <16F877.H>
#fuses XT, NOWDT, NOPROTECT, BROWNOUT, PUT, NOLVP
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)

//================================
void main()
{
   
printf("Hello World\n\r");

while(1);
}
Guest
PostPosted: Tue Aug 21, 2007 2:18 am     Reply with quote
Thank you for reply.

Quote:
Connect your PIC to the PC with a MAX232A chip and a cable

Can i connect serial cable to PICkit 1 flash starter kit ( dont ask why :-)), or do you suggest some other way for displaying data ?

Instead 16F i will use the 12F675.
Anyway, back to the problem.

The I/O wire is connected to our testing external device which is using the standard mobile phones protocols. My goal is to monitor all data that is passed thru few I/O ports but for start i will use just one.

LpX
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