- Tue Aug 15, 2006 4:01 pm
#17293
Hi,
By ARM922t, I specifically mean KS8695PX. I have had the same problem with other folks in the forum, getting the same "Error validating JTAG scan chain, IR mismatch" error message. I have tried their methods but to no success. Can anyone help out a bit? Thanks!
Here's a list of noticeable problems ..
1. I tried getting the IR id thing using the Amontec's demo tool .. but both the DR and IR chain return only FF FF FF FF.
2. It doesn't seem to be able to halt the CPU and enter debug mode using openocd.
3. SRST reset with the demo tool works well, but nothing else works.
4. I've tried my AT91R40008 refenece board and it works fine. Does it have to do with the CPU architecture (ie. ARM922t)? Do they handle JTAG differently?
Thanks
By ARM922t, I specifically mean KS8695PX. I have had the same problem with other folks in the forum, getting the same "Error validating JTAG scan chain, IR mismatch" error message. I have tried their methods but to no success. Can anyone help out a bit? Thanks!
Here's a list of noticeable problems ..
1. I tried getting the IR id thing using the Amontec's demo tool .. but both the DR and IR chain return only FF FF FF FF.
2. It doesn't seem to be able to halt the CPU and enter debug mode using openocd.
3. SRST reset with the demo tool works well, but nothing else works.
4. I've tried my AT91R40008 refenece board and it works fine. Does it have to do with the CPU architecture (ie. ARM922t)? Do they handle JTAG differently?
Thanks