Hi,
Well, using jumpers I connected the signals per Peter’s list below. Then I tried to use flashrom to flash the board. The SPI programming instructions stated that flashrom would automatically detect the W25Q32 flash. As a complete hack, I tried this: robert@STS-MAX:~/Downloads/MB_UEFI_Firmware_v1.00$ flashrom --programmer ft2232_spi --write MINNOW.fd flashrom v0.9.6.1-r1563 on Linux 3.13.0-39-generic (x86_64) flashrom is free software, get the source code at http://www.flashrom.org Calibrating delay loop... OK. Unable to open FTDI device: -3 (device not found) Error: Programmer initialization failed. I just chose the programmer at random since I couldn’t find actual instructions (they probably exist, I just didn’t find them). I also tried using the “dummy” programmer, with this result: robert@STS-MAX:~/Downloads/MB_UEFI_Firmware_v1.00$ flashrom --programmer dummy --write MINNOW.fd flashrom v0.9.6.1-r1563 on Linux 3.13.0-39-generic (x86_64) flashrom is free software, get the source code at http://www.flashrom.org Calibrating delay loop... OK. No EEPROM/flash device found. Note: flashrom can never write if the flash chip isn't found automatically. Does anyone know what “programmer” parameter I would use with flyswatter2? Or what other parameters I would need? Also, is OpenOCD a possibility for programming flash on the Minnowboard with the flyswatter2? Thanks for all the help so far. Thanks Robert From: Peter Ogden [mailto:[email protected]] Sent: Wednesday, November 05, 2014 10:16 AM To: [email protected] Cc: MinnowBoard Development and Community Discussion; [email protected] Subject: RE: [MinnowBoard] Programming flash Since David has tried it already I'd wait for his input, but I think this is the mapping: J1.1 = 3.3v J1.2 = gnd J1.3 = gnd (only one flash chip to select) J1.4 = tck J1.5 = tdo J1.6 = TDI J1.7 = no connect J1.8 = 3.3v The spi flash will get powered by the programmer so don't power the MinnowBoard. On Nov 5, 2014 10:06 AM, "Robert Johnston" <[email protected] <mailto:[email protected]> > wrote: Hi Peter, Thanks. I looked at the connections shown for the 20 pin and also have the one from the eLinux org for the SPI connector. Later today or tomorrow I will see if I can match signals. David Anders also replied and is looking into it. Robert From: Peter Ogden [mailto:[email protected] <mailto:[email protected]> ] Sent: Tuesday, November 04, 2014 7:37 PM To: [email protected] <mailto:[email protected]> ; MinnowBoard Development and Community Discussion Cc: [email protected] <mailto:[email protected]> Subject: Re: [MinnowBoard] Programming flash Here is the Flyswatter2 JTAG Pinout: http://www.tincantools.com/assets/Flyswatter2%20-%2020%20Pin%20JTAG%20Connector.pdf Links to some more info is on this page: http://www.tincantools.com/JTAG/Flyswatter2.html Haven't tried it myself yet. -Peter On Tue, Nov 4, 2014 at 7:02 PM, Robert Johnston <[email protected] <mailto:[email protected]> > wrote: Hi, Documentation (such as http://www.elinux.org/Minnowboard:SPI_Boot_flash) indicates that the Minnowboad flash can be programmed using the TinCanTools Flyswatter2. But I have been unable to find either a schematic or actual cable to connect from the Flyswatter 20 pin JTAG connector to the Minnowboard 8 pin SPI connector (or even determine if those are the right connectors to use). Can anyone point me in the right direction? Thanks Robert _______________________________________________ elinux-MinnowBoard mailing list [email protected] <mailto:[email protected]> http://lists.elinux.org/mailman/listinfo/elinux-minnowboard
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