On Thu, 7 Aug 2014 12:58:23 +0200 The Raven <[email protected]> wrote:
> Can i lower the spi frequency with serprog? Maybe the chip is overclocked? The datasheet states "10 MHz Max Clock Frequency". AFAIK you are using an Arduino which has a 16 MHz clock, but the maximum SPI frequency the CPU supports is CLK_cpu/2, i.e. 8 MHz, shouldn't be a problem. Anyway, serprog supports an spispeed parameter but the programmer has to support that too (no idea if GNUtoo's code does that). flashrom -p serprog:dev=/dev/device:baud,spispeed=2M > Or maybe this is a "clone" chip? Not a "real" SST? Possible in theory, but why would it reply with 0x7fff to RDID commands? I am pretty certain it is an electrical issue on the SPI bus. -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner _______________________________________________ flashrom mailing list [email protected] http://www.flashrom.org/mailman/listinfo/flashrom
