Hi Nico! Thanks for explaining. :) So what can I do in this case? Which programmer is the easiest to get the setup working? Rayer_SPI didn't even detect it, nor with shorter wires, this is why I went to ICH7, at least it can recognize KB9012, and read some random data from it. I will not connect both programmers at the same time, but I have a theory Rayer_SPI doesn't give SPI clock signal continuously, thus KB9012 didn't enter EDI mode.
Nico Huber <[email protected]> ezt írta (időpont: 2019. jan. 20., V, 13:39): > Hi Nyúlós, > > On 20.01.19 12:46, Nyúlós Lónyál wrote: > > There are some programmer_delay values in ichspi.c, here is one which > says > > something about frequency: > > > > timeout = 100 * 60; /* 60 ms are 9.6 million cycles at 16 MHz. */ > > while ((REGREAD16(ICH7_REG_SPIS) & SPIS_SCIP) && --timeout) { > > programmer_delay(10); > > > > So I just need to increase programmer_delay, for example to 20 and maybe > > the timeout to 200 * 60? > > no, this has nothing to do with the transmission speed, it's really just > a polling loop with a timeout. Generally, the ichspi (both hardware and > driver) expect a perfect connection to the SPI slave... plus the hard- > ware might make assumptions about the type of commands used. It's not > meant to work with your setup, so you need a lot of luck. > > > > > I can try another method too as the KB9012 datasheet says "To enable EDI, > > it is by detecting any SPI command with EDI_CLK frequency between 1MHz > to 8 > > MHz.", > > According to its datasheet the ICH7 runs its SPI clock at 17.9MHz. It's > not completely hopeless, though. > > > so maybe after probing with flashrom in DIP8 socket, and connecting > > it to rayer_spi LPT it will detect and flash KB9012 correctly with lower > > SPI frequency. > > Sounds like a fragile procedure, make sure that you never have the ICH > and Rayer connected at the same time. Also, what Mike said about the > wire length applies to your setup with the Rayer, too. > > Nico >
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