Hi, sorry for the trouble. I'm running bus piratev3.6, bootloaderv4.4, firmwarev6.1 on flashrom-0.9.6.1, i plan to run the BP at 1M.
When i run the command "flashrom -p buspirate_spi:dev=/dev/ttyUSB0 -Vr oldbios.bin" I get: " Found Generic flash chip "unknown SPI chip (RDID)" (0 kB, SPI) on buspirate_spi. Probing for Generic unknown SPI chip (REMS), 0 kB: probe_spi_rems: id1 0x0, id2 0x0 Found Generic flash chip "unknown SPI chip (RDID)" (0 kB, SPI). === This flash part has status NOT WORKING for operations: PROBE READ ERASE WRITE " etc...
I think i have the wiring wrong which is why i get that error, i wonder if you could help me as its my first time? I'm trying to use In-circuit programming with a soldered bios chip using an 'SOIC 8 clip' and it has 8 wires. But the bus pirate has 10 pins.
From another thread, these are the connections i need: Bus Pirate "MISO" (Pin 1) <----- SPI Device "DO" (Wire/Pin 2) Bus Pirate "CS" (Pin 2) -----> SPI Device "CS" (Wire/Pin 1) Bus Pirate "MOSI" (Pin 3) -----> SPI Device "DI" (Wire/Pin 5) Bus Pirate "CLK" (Pin 4) -----> SPI Device "CLK" (Wire/Pin 6) Bus Pirate "GND" (Pin 10) <----> SPI Device "GND" (Wire/Pin 4)
It appears to me that GND is pin 10 and that the wires of the SOIC8 clip only contact pins 1-8, so how can this work?
Also, could i just check the layout of the pins on the bus pirate if i'm reading it correctly on BPv3.6: 10 9 8 7 6 5 4 3 2 1
Corresponding to: GND 3V3 +5V ADC VPU AUX CLK MOSI CS MISO
Or are the pin numbers read in the opposite direction? ie 9 10 7 8 5 6 3 4 1 2
Here's an image of my bus pirate if it helps: http://dangerousprototypes.com/wp-content/media/2012/11/Bus-Pirate-v3.6inter...
Your help is much appreciated and i appreciate your patience, Nabs.