C6670 customer question

Wallace Ly

I have a customer who has the following question:

"We are currently running into an issue trying to access the boot config section of the TI 6670 through SRIO. Looking in the datasheet (sprs689d) Table 4-2 indicates that the SRIO has access to the boot config registers (0x0262xxxx), however when trying to access them, it seems that we can read the registers from another chip via SRIO, however it seems we cannot write to any of those registers. We have verified that the KICK registers are unlocked, and can write to those registers via the debugger, and we can write to different memory locations via SRIO.

Just wanted to verify that this process is possible, as we would like to be able to trigger an IPC interrupt via SRIO."

Best Regards,

Wally

over 12 years ago

0 TommyG over 12 years ago

TI__Genius 13045 points

Wally,

How is customer writing to KICK registers? Can you describe the procedure and values written to the registers? The fact that the registers can't be written to might mean the unlock procedure wasn't followed correctly.

Regards.

0 Wallace Ly over 12 years ago in reply to TommyG

Prodigy 240 points

Hi.

Please see below:

We are using SRIO Direct I/O writes (from an external processor) to write to them,

0x83e70b13 @0x0262003C

0x95a4f1e0 @0x02620040

We know the proper procedure, as we have written to the registers (using the debugger) and verified changes in values for other registers. Our main question is if it is possible to do through SRIO. Just wanted to make sure we weren’t chasing our tails trying to do something that the silicon did not support.

So the main question would be using Direct I/O from an external processor, is the full memory range of the DSP accessible for reads/writes.

0 Rahul Prabhu over 12 years ago in reply to Wallace Ly

TI__Guru** 116830 points

Hi Wally,

Did you mean

0x83e70b13 @0x02620038

0x95a4f1e0 @0x0262003C

0x02620040 seems to be the boot address of the Core0 on C6670 and not a KICK register.

Regards,

Rahul

0 Wallace Ly over 12 years ago in reply to Rahul Prabhu

Prodigy 240 points

Yes, customer made a mistake and swapped it.

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C6670 customer question