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HW/SW to Read PIC 16F690 EEPROM data via ICSP pins

 
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mkossor



Joined: 28 Dec 2009
Posts: 7

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HW/SW to Read PIC 16F690 EEPROM data via ICSP pins
PostPosted: Mon Dec 28, 2009 1:32 pm     Reply with quote

I would like read PIC16F690 data stored in EEPROM via PC serial port (RS232) or USB port without the need for a device programmer.

Ideally, I would like to read the PIC16F690 EEPROM data into a PC using Visual Basic program. I know this can be done using the onboard RS232 interface but I would like to know if it can be done using the ICSP clock and data pins instead so the RS232 tx/rx pins so those pins can be used for other functions and still be able to read out the EEPROM data. It must be possible because the PICKIT 2 programmer can read out the data using ICSP clock and data!

Appreciate it if anyone knows of the HW and SW interfaces necessary to do this.

Thanks
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Dec 28, 2009 2:16 pm     Reply with quote

You could use this code as a guide to writing your own program:
http://www.ccsinfo.com/forum/viewtopic.php?t=26816

Refer to the 16F690 Programming Guide for details on how to read
the data eeprom using ICSP:
http://ww1.microchip.com/downloads/en/DeviceDoc/41204H.pdf
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