MCUmall EPROM BIOS Chip Burner Forum
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 16F84A + ICSP + Enhed JDM does not work		  New Topic  Reply to Topic
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gtenrreiro

USA
1 Posts
Posted - 05/25/2008 :  15:15:48  Show Profile  Reply with Quote
Hi,

I am trying to program a PIC16F84A using the Enhanced JDM Programmer's ICSP connector. It keeps failing with "Verify failed at address 0000h!".

If I put the chip on the zif socket then it works.

The voltage on Vpp is about 13V while programming.
Vcc is about 4.6V

On the 16F84A I connected:

16FF84 Pin ------------ ICSP Pin

12 -------------------- Clk
13 -------------------- Data
4 -------------------- Vpp
14 -------------------- Vcc
5 -------------------- Gnd

Does anyone here have experience with this?

Thanks
Edited by - gtenrreiro on 05/26/2008 05:37:29
Reply #1

ZLM

2937 Posts
Posted - 06/04/2008 :  08:27:53  Show Profile  Reply with Quote
Check your target board see if it needs more power to power it up.
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Reply #2

wmmullaney

USA
5 Posts
Posted - 08/15/2008 :  17:05:44  Show Profile  Reply with Quote
You should get a newer pic, 16f628/script or something, the 84a is obsolete now.
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