I'm trying to read Atmel 24RF08 serial eprom. I set it as 24C08. It always reads FF. I tried to read it in circuit and then software got frozen at 19% of reading (it was able to read top 19% correctly, but I need the whole dump). Is there support for 24RF08 planning to be added or maybe I can do something? Thanks.
Did you connect the Vcc pin when you reading in circuit? If so, you can try to remove the VCC. Power the chip from board. GND need to be connected only.
I tried with VCC and without. With VCC I could get at least 19% of the dump, but without VCC I did not get anything. Yes, this is from Thinkpad and I power up the machine before reading this chip. For some reason software was able to actually read 19% and it seems like the right dump, but it froze after 19% so I have to restart the software. I tried it several times and it always get stuck at 19%. Seems like that software is waiting for some response from the chip(?) and frozen in the endless loop.
I know all this info. I just wanted to find out if there is a way to read it using my programmer (True-USB Willem) which I bought recently. Maybe it's just a simple bug in the software (so it can be fixed) or hardware does not support these kind of stuff (so it might be modified).. That was my question. For me it sounds like a software problem (because it was able to get first 19% of the chip's content), but who knows..
I had to build rs232 to ttl converter based on max233a and got my dump without Willem after all, but it would be nice to have Universal True-USB Willem programmer to be universal and handle it also :)
24RF08
Posted - 03/15/2007 : 21:37:13
