Please "reply to all". 2012/12/5 Nabil <[email protected]>: > Sorry there's one thing I'm not sure I understand... > Is it possible to adjust the locations of the wires of the soic clip so they > match up with the correct pinouts? > I just dont get how gnd (pin 10 of bus pirate) can be connected to the soic > clip (only 8 cables which connect to pins 1-8) > there's something I'm missing here i think, could you explain to me how to > use an soic clip in detail, sorry for the trouble, much obliged. Nabs
Which soic8 clip do you have? I have a Pomona 5250; it is possible to adjust the wire locations (pinouts) if you have the probe cable (that fits on the open end of the wires - the other end is a box header that connects to the buspirate): http://dangerousprototypes.com/2011/08/03/new-bus-pirate-probe-cable/ > > Idwer Vollering <[email protected]> wrote: > >>2012/12/5 Nabs <[email protected]>: >>> 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 >> >>Forget the existence of +5V, VPU, ADC and AUX for now ( >>http://dangerousprototypes.com/docs/Bus_Pirate_I/O_Pin_Descriptions ), >>connect the clip to the buspirate so that the clip passes the >>buspirate pins like mentioned in this post: >>http://www.coreboot.org/pipermail/flashrom/2012-November/010178.html >> >>This works for me, with a MX25L1605A soic8 chip: >> >>CS# (CS) [1 chip 8] VCC >>(bridge with buspirate pin 3+7) >>SO (MISO) [2 chip 7] HOLD# (+3V3) >>WP# (bridge with buspirate pin 7+8) [3 chip 6] SCLK (CLK) >>GND (GND) [4 chip 5] SI (MOSI) >> >>> >>> 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-v3.6interface_01-W600.jpg >>> >>> Your help is much appreciated and i appreciate your patience, Nabs. >>> >>> _______________________________________________ >>> flashrom mailing list >>> [email protected] >>> http://www.flashrom.org/mailman/listinfo/flashrom _______________________________________________ flashrom mailing list [email protected] http://www.flashrom.org/mailman/listinfo/flashrom
