On 5 August 2010 15:46, Myles Watson mylesgw@gmail.com wrote:
Already tried flashing my bios with flashrom: it worked fine. I didn't know you could hotswap chips to reprogram them though: I thought I'd have to use an external programmer. Is there no risk of corrupting data on the chip as you remove it?
I'm not really familiar with serialICE, where can i find these examples? I looked in the source code but didnt find anything (might have been looking in the wrong place though)
Btw, sorry for replying directly to you last time. I didn't realise you'd sent the email to me and cc'ed it to the list, so I just idly hit reply and it sent directly to you.
Thanks, Myles
On Thu, Aug 5, 2010 at 10:59 AM, Alec Wright alecjw@member.fsf.org wrote:
I won't say _no_ risk, but it's pretty safe. With a backup, I wouldn't worry about it at all.
I like using a pushpin best: http://www.coreboot.org/Developer_Manual/Tools#Chip_removal_tools
A bios savior can be nice, too.
Here are a couple of examples: no initialization: http://www.serialice.com/trac/serialice/browser/trunk/SerialICE/mainboard/qe... some initialization: http://www.serialice.com/trac/serialice/browser/trunk/SerialICE/mainboard/am... a little more: http://www.serialice.com/trac/serialice/browser/trunk/SerialICE/mainboard/ty...
Basically you take the minimal set of code that can initialize the serial port from Coreboot, and port it to SerialICE to support a new mainboard. The first two are simulators (qemu & simnow), so they're easy to play with.
No problem.
Myles
On Thu, Aug 05, 2010 at 01:40:35PM -0400, Myles Watson wrote:
BIOS Savior appears to be no longer manufactured. Do you have an alternative source for these?
Any info appreciated, Joe
On Thu, Aug 5, 2010 at 3:38 PM, Myles Watson mylesgw@gmail.com wrote:
They pop up on ebay from time to time, that's where I got my last couple, but that was over a year ago, and they were out of production then.
-Corey
On Thu, Aug 05, 2010 at 03:41:47PM -0400, Corey Osgood wrote:
Thanks! I was/am looking for the LPC version which apparently came out near the end of the line, so not too many made.
I've been thinking it would be a nice little hardware project to make my own little bios switcher.
Regards, Joe
05.08.2010 22:51, Joe Korty пишет:
This solution is already present. It's named 'top hat', used mostly for reflashing soldered chips and it's easily maked for a hour just from 2 PLCC sockets - both are soldered pin-to-pin except pin 24. For bottom socket (that is placed on soldered chip and has removed key corner - to fit on reverse-placed chip) pin 24 is connected to pin 26 (GND), for top - pin 24 connected to pin 2 (nRST). Detailed Russian manual with discussion is placed here: http://www.rom.by/node/3430 IMHO it can be used for socketed flashes with some modifications (I can't imagine how to plug something over socketed flash - maybe just put PLCC32 package w/o crystal inside into socket, and solder to it adapter with switch for 2 PLCC32 chips) - but IMHIO it isn't actual, it's much easier just to swap flashes in socket or to solder ZIF socket.