Does anyone here know how to program the TI 320C6416 DSP? I'm integrating it with a SBC running Linux for an embedded radar application, and while I have the entire Linux side of the interface working, the interrupt structure of the DSP is giving me fits. All I have to work with is an executive (with very limited capability, as befits an embedded system) and the TI Code Composer development suite.

I have mountains of reference material on this chip, but no HowTos, so sorting this out is becoming a very painful process (and expensive for my client).

Basically, I need to have my Linux host generate an interrupt on the DSP, and the interrupt handler on the DSP then wakes up a task that does a DMA transfer to the host as a bus master. At this point, I seem to be unable to get the interrupt handler on the DSP to actually respond to the interrupt.

This is driving me nuts, and I sure would appreciate it if someone could steer me appropriately.

Well...I have it figured out now. My major problem turned out to be something that Code Composer Studio does...

...and actually, now I REALLY have it figured out.

The development board I am using has a hardware fault in the memory address/refresh logic. Makes debugging really, really hard when you get random changes in program code (which can't be accounted for by wild pointers). But when you finally manage to instrument in a fashion where you see it happen...