On 29.06.2010 20:13, Andrew wrote:
29.06.2010 20:18, Carl-Daniel Hailfinger пишет:
would it be OK with you if I move this discussion to the flashrom mailing list?
Yes, it'll be good.
Thanks.
On 29.06.2010 19:11, Andrew wrote:
Is it possible to add support of some low-cost serial (for ex., SI-Prog) and parallel (for ex., Altera Byteblaster) SPI programming/interfacing
Yes. I have code for SPI bitbanging on the parallel port, but nobody has time to test.
I can test it in near future - I have some SPI flashes, and I have 'universal' programmer (bunch of wires with protection resistors, 3.3V power stabilizer and separate pins to connect to LPT holes - I use it with SPIPGM; I assembled it when I need to program one SPI flash from MB)
Oh, nice. I will update the SPIPGM support patch for flashrom and it would be great if you could test it.
devices? It'll be very useful (due to it's very simple schematic), and IMHO it won't be much work to add them...
Sure. If someone sends me those devices, I can implement support for them. Or someone else uses my RayeR SPIPGM patch for flashrom and extends/changes it so it works with the Altera Byteblaster.
SPIPGM differs from ByteBlaster only by some LPT pins. + buffer. Pinout for ByteBlasterMV: JTAG (SPI) pins: D0 -> TCK (SCK) D1 -> TMS (CS-? or NC) D6 -> TDI (SI) Busy -> TDO (SO)
Programmer pins (hardware detection): D5 -> nACK D7 -> PE (PaperEnd) via buffer (checking if buffer powered and working) nAutoFd -> buffer on (active in low) nError -> pull-up to Vcc
This can be supported easily by duplicating my SPIPGM driver.
For SI-Prog connection is also very simple: SPI pins: DSR -> SCK DTR -> SI CTS -> SO
Programmer pins (hardware detection): DSR -> RTS
How does the SI-Prog handle CS?
About programmer detection pins - IMHO it'll be good to make hardware detection, but just report hardware failure, not to break programming process.
Yes, a sanity check makes sense.
Regards, Carl-Daniel
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Carl-Daniel Hailfinger