Date : Thu, 24 Jul 2008 15:50:35 +0100
From : fragula@... (Fragula)
Subject: EEPROM writing in SW rom bank?
Hi Charlie!
>>Try pin 8 of IC77, which is a more 'correct' (i.e. actual)
>>write strobe.
>>
>>That's the pin I'm using. Unfortunately I just lost the use
>>of a 'scope. I'll apply my parallel-port logic analyser to
>>some pins later, though I don't think it has the resolution
>>to show anything up.
>>
>>
I had to stick the write (active low btw!) line from the CPU through two
stages of a 7404 (if that's the old bipolar quad NOT, and my memory is
working) when writing to 6264/62256 SRAMs.
>>But from the sounds of it, at least by implication, this
>>should work?
>>
>>
Not familar with your flash.. Direction and state of the write input? It
sounds like a job for a timing diagram.
Cheers!
M.
--
There is a fine line between genius and madness...
...and I have an eraser!