[coreboot] LPCflasher Wiki Page
joe at settoplinux.org
Tue Nov 25 03:06:06 CET 2008
On Mon, 24 Nov 2008 22:11:04 +0100, Peter Stuge <peter at stuge.se> wrote:
> Joseph Smith wrote:
>> Ok, I have finished the "The Circuit Explained" section. I need
>> some feedback, bueller?
>> A series of 1K ohms resistors 250mW (1/4W) on data lines D0 - D6
>> convert the signals from 5V to 3.3v needed by the flash chip.
> This sentence and design is not so good.
Ok, how about this:
A series of 1K ohms resistors 250mW (1/4W) on data lines D0 – D6 convert
the signals from 5V to 3.3v needed by the flash chip. Any excess voltage is
shunted by diodes inside the 74HC244 to its 3.3V power rail.
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