Hi Charlie, Charlie Nakamura wrote > Krause Martin <Martin.Krause@...> writes: > > > > > Hi Simon, > > > > I'm using both - the SF100 programmer and the EM100Pro emulator - on > > the Minnowboard Max with success. > > Could you share the pinout you're using with the EM100Pro and the > Minnow? I have a Minnowboard but not Max. As such, I can't use the clip, > because the flash is too low profile on the original minnow. And I want to > know if I can get away with only connecting the 6 pins that I know for sure, > or > if I need to connect something to pins 7 and 8 to do proper emulation (and if > so, what?)
The EM100Pro has a 20 pin connector, so I assume you refer to your SPI flash device with your pin numbers? I don't know the minnow board, only the minnow max, so here a few general notes to the EM100Pro: If you want to use the EM100Pro in parallel to your soldered flash, the important pin is the HOLD pin. If this pin is driven low on the soldered flash, it does not drive any pins. So it acts as if not present. This is important for the emulator to work, because it then can simulate all signals without interfering with the soldered flash. The HOLD pin is usually polled low by the emulator, if you connect the emulator HOLD with your soldered flash HOLD. Please note, that the HOLD pin of the soldered flash has to be pulled-up through a resister to VCC on the minnow board (please look at the schematics). If it is connected directly to VCC then the emulator could not pull the pin low and could not disable the flash. All other pins of the emulator should be connected directly to the SPI bus (= the pins of the soldered flash, if there is no extra header available): GND <-> GND VCC <-> VCC MOSI <-> MOSI MISO <-> MISO CLK <-> CLK CS <-> CS The WP (write protect) pin should not matter. So if the minnow board has the same SPI flash connector as the minnow max, you could adapt the emulator to this connector. The only thing additionally you have to do is, pull the HOLD pin of the onboard flash to low (GND) Best Regards, Martin > > Much appreciated > > Charlie Nakamura > > _______________________________________________ > elinux-MinnowBoard mailing list > [email protected] > http://lists.elinux.org/mailman/listinfo/elinux-minnowboard _______________________________________________ elinux-MinnowBoard mailing list [email protected] http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
