On 6/14/06, Per Mellander per@mellander.org wrote:
Thank you, thank you, thank you for those words!
I was nearly giving up today after trying 64k of zero's instead of VGA and nothing worked. I was almost certain that I'm to stupid to do this ;)
Hmm... That should have worked.
The issue is that the buildsystem is creating a rom file that is 64k shy of the size of your ROM part. So all the addresses in the part will all be 64k lower than where they need to be.
You can solve this by either prepending 64k data that bumps the size of the rom file up to the size of the rom part, or program the file into the part with a 64k offset.
So regardless if you used 0x00's, 0xff, or random bytes you should still get _some_ serial output if the size is correct.
You can check your rom file with the following.
'hd -s 255k <romfile>'
If you don't see an 0xe9 at address 0x0003fff0 then your rom file is not valid.
-
Richard Smith