Looks like that was it. I lifted the chip's VCC from the MB and was then able to communicate and program the chip. The netbook now boots and there is great rejoicing. Thanks for the help!
-Hugh
On Thu, Oct 21, 2010 at 10:33 PM, Hugh isur.o.o.t@gmail.com wrote:
I'll try lifting the Vcc pin on the board tomorrow. The board does have a DEBUG_CON connector right next to the Flash chip which I suspect ties in, but as it has very fine connections and I have yet to find anyone that has made a cable to connect let alone reverse engineered the pinout, it won't do me any good. I suppose if all else fails, I can try removing the chip from the board. Thanks for suggestion!
-Hugh
On Thu, Oct 21, 2010 at 6:47 PM, Richard A. Smith richard@laptop.orgwrote:
On 10/21/2010 07:43 PM, Hugh wrote:
All power from the board has been removed (AC, Main Battery, CMOS
Battery, etc) and I have soldered in some 30ga wire to connect to the individual pins.
I'm looking for any suggestions as to what I may be doing wrong. If I need to post this in the over on the Dang.erous Prototypes forums, let me know. Thanks!
I missed this in my first read.
I suspect that your laptop board does not have the proper isolation on the 3.3V supply. You have to power the SPI part only without powering the rest of the motherboard for ICP to work.
-- Richard A. Smith richard@laptop.org One Laptop per Child
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