MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
 12F508 CFG issues
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martin

USA
6 Posts

Posted - 10/21/2006 :  21:26:20  Show Profile  Reply with Quote
True USB Willem will not program config bits. Version GQUSBprg 1.06
Sep-7-2006

Device programs OK
Go to CFG screen
Set CFG bits to 000A
"Write" in config word aread
Use read command in "Direct Device Memory Access" config is still 0FEA
Try "read" in config word area, reports OK then crashes to Windows via error screen

0FE2 works.



Martin
Reply #1

ZLM

2937 Posts

Posted - 10/22/2006 :  01:10:49  Show Profile  Reply with Quote
For the PIC12F508 config bits, only lower 5 bits allow user to change.
Other bits are reserved by chip factory.

So, you can not change the reset of bit other than lowest 5 bits.
This is why you always get the 0FEA.

Tested and found no problem on write CFG bits.

Only issue is the crash when click on OK button after read the CFG.
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Reply #2

ZLM

2937 Posts

Posted - 10/24/2006 :  11:36:33  Show Profile  Reply with Quote
Crash fixed.
Try this R1.07 Beta.

http://www.mcumall.com/download/TrueUSBWillem/TrueUSBWillemGQ-2X1.07BetaSetup.exe

Edited by - ZLM on 10/24/2006 11:37:40
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