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JTAG on cubieboard 4 v1.2

Started by karpulevich, November 03, 2015, 07:41:25 am

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Hello. I tried to connect to JTAG pins on cubie.
I use USBBlaster + openocd.

I have warning DO is stack at 0 from comand "openocd detect"
I'm sure that I connect cables according to pinouts.

What can I do else?


I only have the Cubie2 and Cubietruck, but there should be a TX, RX, & GRD.  Get a USB/TTL adapter, cross the RX & TX, connect GRD and run your favorite serial program, I use 'screen /dev/ttyUSB0 115200', others prefer minicom.  Note serial is 8-N-1 @ 115200 bps.



I am also trying on JTAG ON cubieboard 4 V1.2, I dont have any luck on this,

I took jtag pins out from J20,connected to jtag, not able to see output,

Can you help me on this,if you got luck