U-BOOT !!!!!!!!!!!!

Honored Contributor

20 years ago

Hi MFM,

I'm glad you have things up-and-running and didn't commit suicide! ;-)

> I wanna know how to download µClinux into flash memory for the first time.

1. erase the flash

There are several ways to do this, the easiest to _understand_ is:

==> protect off all

==> erase 01000000 02ffffff

2. download the image

--using tftpboot (e.g. download to linux.img memory location 0100_0000)

==> tftpboot 1000000 linux.img

--using loadb (this uses kermit -- so you must start transfer after the following):

==> loadb 1000000

3. program the flash

If you downloaded, say 2e_8348 bytes to address 0100_0000, you can simply

"copy" the bytes to the flash memory ... u-boot is smart enough to know you're

copying to flash. For example, to program flash memory at 0800_0000

==> protect off all

==> cp.b 1000000 8000000 2e8348

> if somebody can tell me where to find details of the u-boot commands.

See Section 5.9:

Regards,

--Scott

Forum Discussion