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
