Hi Andreas.
On Mon, 24 Feb 2014 09:13:18 +0100, Andreas Fritiofson wrote:
> On Mon, Feb 24, 2014 at 8:15 AM, Jens Bauer <jens-li...@gpio.dk> wrote:
>> The LPC812 datasheet does not mention a TAP ID for the LPC8xx devices.
>> So I asked NXP for the TAP ID, and they replied that 0x0BC11477 should work.
>
> Does auto-probing give anything at all? Try openocd -f interface.cfg
> -c "adapter_khz 10" and see if it finds any taps. Otherwise it's
> probably wiring as you say.
I just hooked up a chip on a new breadboard with only JTAG and reset pull-up.
This is what I got:
$ openocd -f interface/ftdi/jtag-lock-pick_tiny_2.cfg -c "adapter_khz 10"
Open On-Chip Debugger 0.8.0-dev-00328-g0b26376 (2014-01-21-00:55)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.sourceforge.net/doc/doxygen/bugs.html
Info : only one transport option; autoselect 'jtag'
adapter speed: 10 kHz
Info : clock speed 10 kHz
Warn : There are no enabled taps. AUTO PROBING MIGHT NOT WORK!!
Error: JTAG scan chain interrogation failed: all ones
Error: Check JTAG interface, timings, target power, etc.
Error: Trying to use configured scan chain anyway...
Warn : Bypassing JTAG setup events due to errors
Warn : gdb services need one or more targets defined
I'm starting to wonder... There seem to be no RTCK on the LPC812; might it be
the clock speed that's acting up ?
I believe Nemui Trinomius has the LPC812 working, but I can't say for sure;
only he can. ;)
Love
Jens
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