2009-06-25 13:05:11 CM 527 Flash
Adam Dershowitz (UNITED STATES)
I have a couple of questions about accessing the Flash on the 527 CM.
1) I see that the flread command should allow for accessing all 4 banks of flash. But it doesn't make it clear if they are addressed as a contiguous block? In other words, I want to boot from a 4 meg image can I just use flread to copy that image to ram? So, with flread, is the flash addressed as 0x20000000 through 0x207FFFFF ?
2) How can I write to that flash? If I have a 4 meg image, and I use tftp to load it into ram and then I want to flash it, is there an equivalent of flread such as flwrite? Or some other trick to write greater then 2 meg to flash on a CM?
2009-06-25 14:33:32 Re: CM 527 Flash
Mike Frysinger (UNITED STATES)
i believe your understanding with (1) is correct
i believe (2) works in the same way -- the addresses are automatically munged when writing to flash with the normal cp.b
it's been a while since i played with this board and i dont have it readily available atm ...