Dne Po 6. září 2010 08:50:09 Takács Áron napsal(a): > Hello, Hi, keep the CC please > > thanks for the answers of Wookey and Marek! > You are right, marek, there are buffers on the board. I have tried to > increase the reset delays (jtag_nsrst_delay, jtag_ntrst_delay 250) and > also the timeout value in xscale.c:409 and :499, but the situation > remained the same. > Any ideas what to try now? Thank you!
You use colibri board, right? Either try a different JTAG adapter or connect yours directly to the CPU card (there's that white strap connecting the JTAG on the card to the board ... you can use that to tap directly on the CPU JTAG pins). Cheers > > Áron > > 2010-09-03 21:44 keltezéssel, Marek Vasut írta: > > Dne Pá 3. září 2010 16:46:59 Wookey napsal(a): > >> +++ Takács Áron [2010-09-03 16:15 +0200]: > >>> Hi, > >>> > >>> I want to use openocd to reflash PXA270 board (Colibri by Toradex). I > >>> am using JTAGKey-Tiny interface (by Amontec). I can connect the board > >>> but I always get the error message: > >>> 'time out writing RX register'. Here is the output for 'reset' and > >> > >>> 'flash info 0': > >> We've used openocd with amontec jtagkey-tiny and pxa270 (balloonboard) > >> successfully for some time now. It works since 0.3.1 and is also fine > >> with 0.4. You might find it useful to compare your config with ours: > >> http://balloonboard.org/trac/browser/balloon/trunk/utils/openocd > >> > >> we have at least one extra pxa CPUID which should be upstreamed: > >> http://balloonboard.org/trac/browser/balloon/trunk/utils/openocd/target/ > >> pxa 270updated.cfg > >> > >> but that's not going to make any difference, assuming you are seeing > >> the device. > >> > >> The rest of the config looks OK to me, but I only checked quickly > > > > It might be the colibri board buffer logic that causes trouble. There are > > additional buffers on the baseboard. > > > > I use a custom FT2232 based dongle compatible with amontec jtagkey, but I > > heard people had trouble with original amontec dongles and colibri > > boards. > > > >>> > reset > >>> > >>> JTAG tap: pxa270.cpu tap/device found: 0x79265013 (mfg: 0x009, part: > >>> 0x9265, ver: 0x7) > >>> Failed to receiving data from debug handler after 1000 attempts > >>> time out writing RX register > >>> > >>> > >>> # set jtag_nsrst_delay to the delay introduced by your reset circuit > >>> # the rest of the needed delays are built into the openocd program > >>> jtag_nsrst_delay 260 > >>> # set the jtag_ntrst_delay to the delay introduced by a reset circuit > >>> # the rest of the needed delays are built into the openocd program > >>> jtag_ntrst_delay 250 > >> > >> Try upping these numbers? I know that Marvell parts have different > >> timing to Intel parts in reset. Bit of a long short but worth a try. > >> > >> > >> Wookey > > > > _______________________________________________ > > Openocd-development mailing list > > Openocd-development@lists.berlios.de > > https://lists.berlios.de/mailman/listinfo/openocd-development _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
