Re: SPI Eprom Automotive 25LC04AE Cannot write correctly
Date: January 20, 2015 07:22PM
could you please specify concretely device type? In your description you have mentioned 25LC04 and also 25LC40. So which one is the correct?
If you think that the write failure is caused by spi bus speed, than you can try to edit the "PonyProg2000.ini" file located in PonyProg2000 folder. There is a key, namely SPIBusSpeed and it can be setup to any of these values: NORMAL, TURBO, FAST, SLOW, VERYSLOW, ULTRASLOW.
> I'm using a homeade prototype board (breadboard)
> using a old pc with Serial DB9 port. Windows 7
> ultimate. Ponyprog2000 set as admin (compatibly
> mode XP SP3). I have elimitated the capcitor, and
> voltage regualtor circuit. I am using the PCs 5
> volt power supply, from a extra hard drive
> I have read and reflashed multiple SPI eproms
> 25c40, 95040, and microwave 93C56 (modded board
> bypassed transitor circuit needed for SPI)
> The latesest Eprom SPI 25LCO4AE is giving me
> problems, I can read it no problem, but I cant
> write it correctly, it says write failed, and its
> all jumbled.
> I think the clock speed should be slower for
> this automotive eprom? 1hz verses 2-3hz for the
> Also lines 1B0-1FF, seem to never change, and
> there is two other spots midway the Bin, that
> never can be programmed either. Its like they have
> wirte protected portions.
> Any solouitns to this? I tried writing the file
> I pulled from the 25LC04AE, and it worked, but
> ounce back on the board in the body contol module,
> it won't work. Resldered the botched 25LC04AE,
> back on the board, and it worked again??