Dan,
I have the same error message but I think my DSP is still in reset. The detail setup is described in the link below.
http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/537/t/311654.aspx
You mentioned that there are 3 methods to debug the DSP side; could you give me the step by step on one method to get the DSP side debug started.
Regards,
Sy