--- "Eric W. Biederman" <[EMAIL PROTECTED]> wrote:
> The prize will be for find a cheap source of ROM emulators
> that you
> can plug into a ROM socket, and reprogram from another
> machine.  Tyson
> had one of those.

Software-only emulator of ROM emulator:

I added ROM programming subroutine to my "custom" LinuxBIOS and
wrote primitive protocol driver for minicom. That's all. Now,
how it goes:

1. I tell LinuxBIOS to start in "resque mode";

2. When it prompts (about a second) I send image file from
minicom, which also is a serial console of the target system;

3. Resque code loads gzipped ROM image from host system using
serial_fill_inbuf and then programs system flash.

As I have only 2MB ROM on target, it doesn't take much time to
load ROM image into the target's RAM. Bur there's also TFTP
loader in LinuxBIOS, if anyone need higher speed.

Konstantin


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