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RTOS/TMS320C5534: IVPD/H settings

Jacques Samoun
Intellectual 390 points

Part Number: TMS320C5534

Tool/software: TI-RTOS

I am writing FW on a C5534 using DSP/BIOS 5.42, and am reviewing all teh clocks, reset etc to make

my FW embeddable.

What is the importance of 55x platforms having the following line in nearly any .gel reference file for C ?

   *(short *)IVPD = 0x027F; // Load interrupt vector pointer

What i don't understand is, what is thes 0x027F address, as none of the DSP/BIOS handled vectors are

located there, but rather to the more standard 0x00FF location. Furthermore, if I break immediately after start, i can see

that the IVPD/H are set to 0x00FF, so this 0x027F has disappeared. I assume this is rewrittent by the c_int00 runtime.

So, really, why is the .gel bothering in setting it at all ?

thanks,

Jacques