Please tell me more about your connection setup. Is it done by ISP (in system programming), i.e. a test clip? If your connection seems to be reliable and the wires are short enough (ideally less than 10cm) : some devices aren't working well with ISP, i.e. if the surrounding circuits are too power hungry and as result there's a voltage drop.
On Thu, Dec 10, 2020 at 2:05 PM Cédric Vuillet <super...@gmail.com> wrote: > > Hi, > > > thanks for working on flashrom which seems to be great! > > > I tried to use it in order to flash an NVidia GTX780M to put it in a iMac > 2010 which has graphic issue today. > > > I tried to flash it using a CH341A module. > > > I was able to save rom in a file using flashrom on MacOS X. > > > But I have a problem trying to write a new rom on that card. > > > This is the result I got... Do you know if I must change jumpers or something > on my CH341A controller. Or do you think this can be a plug issue on the chip > ? > > > Tell me if you want a more verbose log maybe... > > > Thanks à lot! > > > Ced > > > > flashrom -p ch341a_spi -w ~/Downloads/780M_BR2.rom > > flashrom v1.2 on Darwin 19.6.0 (x86_64) > > flashrom is free software, get the source code at https://flashrom.org > > > Calibrating delay loop... OK. > > Found PMC flash chip "Pm25LD020(C)" (256 kB, SPI) on ch341a_spi. > > Reading old flash chip contents... done. > > Erasing and writing flash chip... FAILED at 0x00000000! Expected=0xff, > Found=0x4e, failed byte count from 0x00000000-0x00000fff: 0xf85 > > ERASE FAILED! > > Reading current flash chip contents... done. Looking for another erase > function. > > FAILED at 0x00000000! Expected=0xff, Found=0x4e, failed byte count from > 0x00000000-0x00000fff: 0xf85 > > ERASE FAILED! > > Reading current flash chip contents... done. Looking for another erase > function. > > FAILED at 0x00000000! Expected=0xff, Found=0x4e, failed byte count from > 0x00000000-0x0000ffff: 0xf6c3 > > ERASE FAILED! > > Reading current flash chip contents... done. Looking for another erase > function. > > libusb: warning [darwin_transfer_status] transfer error: timed out > > > cb_in: error: LIBUSB_TRANSFER_TIMED_OUT > > ch341a_spi_spi_send_command: Failed to read 4100 bytes > > libusb: warning [darwin_abort_transfers] aborting all transactions on > interface 0 pipe 1 > > Verification impossible because read failed at 0x0 (len 0x40000) > > ERASE FAILED! > > Reading current flash chip contents... done. Looking for another erase > function. > > FAILED at 0x00000000! Expected=0xff, Found=0x4e, failed byte count from > 0x00000000-0x0003ffff: 0x27c8d > > ERASE FAILED! > > Reading current flash chip contents... libusb: warning > [darwin_transfer_status] transfer error: timed out > > > cb_in: error: LIBUSB_TRANSFER_TIMED_OUT > > ch341a_spi_spi_send_command: Failed to read 4100 bytes > > libusb: warning [darwin_abort_transfers] aborting all transactions on > interface 0 pipe 1 > > Can't read anymore! Aborting. > > FAILED! > > Uh oh. Erase/write failed. Checking if anything has changed. > > Reading current flash chip contents... done. > > Good, writing to the flash chip apparently didn't do anything. > > Please check the connections (especially those to write protection pins) > between > > the programmer and the flash chip. If you think the error is caused by > flashrom > > please report this on IRC at chat.freenode.net (channel #flashrom) or > > mail flashrom@flashrom.org, thanks! > > > _______________________________________________ > flashrom mailing list -- flashrom@flashrom.org > To unsubscribe send an email to flashrom-le...@flashrom.org _______________________________________________ flashrom mailing list -- flashrom@flashrom.org To unsubscribe send an email to flashrom-le...@flashrom.org
