Ronald G Minnich <[EMAIL PROTECTED]> writes:
> On Wed, 13 Jun 2001, Ian Castle wrote:
>
>
> > - The BIOS chip is an SST inc. Multipurpose flash (MPF), 90ns,
> > 256Kbits x 8. Which I guess means 256Kbytes which is too small for a
> > Linux Kernel, but large enough for UTC Tiara. The part number is
> > SST39VF020-90-4C-NH. (http://www.ssti.com/products/39lf_vfxxx.html).
> > So I could look at using Tiara with this motherboard.
>
> If you are stuck for size tiara is the way to go.
If you are really stuck for size and just playing with development,
I also have code that let's you boot over the serial port :)
This is painful at even 115200 baud but it does work, and the code is
trivial.
> Most people now burn chips by putting them in the mainboard and "doing the
> deed". Much cheaper than a programmer.
And much easier to update, the drivers for. You download the data sheet
and tweak the appropriate MTD driver.
> But prying out a PLCC and putting in a different one with power on is a
> big deal I think --- much messier than DIP!
Actually I have found it to be the other way around as the PLCC doesn't
have pins you can bend. You just need something to get under it with.
It takes me about half a second to pull out a PLCC.
> We need some clever ideas from the list.
We need to watch out for dependencies on the DOC millenium.
We can use it but if memory initialization code continues to grow
without a way to use the cache as ram. It really won't work to well.
Eric
