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aaaaamartin
Joined: 17 Apr 2005 Posts: 39 Location: Germany Stuttgart
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18F4431 won't let in code |
Posted: Sat Sep 17, 2005 10:22 am |
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Hi,
I recently ordered 5 x 18F4431 PDIP, and 3 x QFN.
The first Chip I tried works flawlessly, however the other CHIPS
don't take a single instruction into flash.
I can read what is in the Flash, but not write.
I use a Tait like burner and freeware soft, as described here.
http://www.sprut.de/electronic/pic/brenner/index.htm#brenner5
&
http://www.sprut.de/electronic/soft/p18/p18.htm
Of course this behaviour can be software and / or burner based,
but why does it work with one of the Chips ?
I'm confused !
Thanks for suggestions.
Martin |
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PCM programmer
Joined: 06 Sep 2003 Posts: 21708
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aaaaamartin
Joined: 17 Apr 2005 Posts: 39 Location: Germany Stuttgart
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Posted: Sat Sep 17, 2005 11:06 am |
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HI,
I've connected all four supply pins.
Makes no difference with the working device, if you only connect two.
Martin |
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PCM programmer
Joined: 06 Sep 2003 Posts: 21708
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Posted: Sat Sep 17, 2005 12:00 pm |
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The programmer software for the 18F4431 is experimental. It may
not work properly. The web page says:
Quote: | The experimental version V 1,5 alpha 3 |
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asmallri
Joined: 12 Aug 2004 Posts: 1634 Location: Perth, Australia
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Posted: Sat Sep 17, 2005 6:22 pm |
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Have you disabled LVP or pulled up the LVP pin? _________________ Regards, Andrew
http://www.brushelectronics.com/software
Home of Ethernet, SD card and Encrypted Serial Bootloaders for PICs!! |
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aaaaamartin
Joined: 17 Apr 2005 Posts: 39 Location: Germany Stuttgart
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Posted: Tue Sep 20, 2005 3:43 pm |
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Hi,
just finished my ICD2-clone.
See www.stolz.de.be for details.
Everything workin ' now !
Thx
Martin |
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