Hi,
does anybody know what is going on with my setup?
I am using FT2232H module and an ATmega2560 device. When I try to
program my firmware, it stops on a verify error, I thought that it is a
bad flash in the mcu, so I did a full erase, full 0x00 write - all ok.
Then I tried to add some more strings just to have data over the bad
location and not code - the result was shocking - the unprogrammed part
moved!!
Is the following combination forbidden by the AVR chip, or the FTDI
uses escaping of data?
It does not matter how many times I program with erase - the error is
still on the same position - or more precisely - with the same sequence
of bytes.
Please advice me how to solve this issue.. many thanks,
Daniel
$ diff a.hex b.hex
273c273
< 00001100 fc cf 80 91 b9 00 88 7f 80 34 11 f4 81 e0 08 95
|.........4......|
---
> 00001100 87 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
|................|
$ diff c.hex d.hex
369,370c369,370
< 00001700 fc cf 80 91 b9 00 88 7f 80 34 11 f4 81 e0 08 95
|.........4......|
< 00001710 84 e9 80 93 bc 00 80 e0 08 95 94 ea 90 93 bc 00
|................|
---
> 00001700 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
|................|
> 00001710 87 e9 80 93 bc 00 80 e0 08 95 94 ea 90 93 bc 00
|................|
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