AWR2944P: ESM interrupt hits after ECC init

Ashwin Venkatesh

Prodigy 120 points

Part Number: AWR2944P

Tool/software:

Hi,

I'm trying to implement ECC Memory test for the MSS regions in ECC_AGG_MSS.

Sometimes, as soon as SDL_ECC_Init() is called, ESM interrupt flag for this ECC Aggregator is set.

Once this happens, even if I clear the flag in ESMSR1, I don't see the interrupt when I inject a bit error.

after few power cycles, this doesn't happen. and I get interrupt pending status in ESMSR1 when a bit error is injected.

Any input on why I'm seeing this every few power cycles?

Note: all the error status flags are cleared during ESM initialization stage. and whenever a status flag is set, it is cleared after read.
So, if an Error status flag is set in one cycle, it should not affect the next one.

1 month ago

0 Pradipta Bandyopadhyay 1 month ago

TI__Mastermind 32665 points

Hi Ashwin,

1) Can you tell me which SDL version you are referring to and which example are you trying?

2) Also can you let me know if you have any modifications to the example code or using it as is?

Thanks,

Pradipta.

0 Ashwin Venkatesh 1 month ago in reply to Pradipta Bandyopadhyay

Prodigy 120 points

Hi Pradipta,

Pradipta Bandyopadhyay said:
1) Can you tell me which SDL version you are referring to and which example are you trying?

I'm using mmwave_sdl_awr2x44p_02_02_02_00.

Pradipta Bandyopadhyay said:
2) Also can you let me know if you have any modifications to the example code or using it as is?

I'm using the example code with all the debugP lines removed.
I'm using the same Injection method as in example.

this is the step I follow:

1. ESM_Init()
2. Clear ESM signals in the interrupts 17 & 18, if any.
3. Write data into the memory under test.
4. ECC_Test_run_MSS_GPADC_1BitInjectTest()
5. Read back the data after some delay.
6. Check the ESM signal state for any interrupt signals.
7. Clear the signal if set.

0 Pradipta Bandyopadhyay 1 month ago in reply to Ashwin Venkatesh

TI__Mastermind 32665 points

Hi,

Can you confirm if you are performing the memory initialization before the ECC_init function is called? If not, then please do so as per the reference code. That should fix the issue.

Thanks,

Pradipta.

0 Ashwin Venkatesh 1 month ago in reply to Pradipta Bandyopadhyay

Prodigy 120 points

Hi,
Yes, I'm doing it.

0 Pradipta Bandyopadhyay 1 month ago in reply to Ashwin Venkatesh

TI__Mastermind 32665 points

Hi Ashwin,

Can you verify the result of that operation. I mean what is the value of ret once the function is executed? The if condition if true as well will not stop the code flow in your case. Even in fail case the execution will move to the next statement.

Thanks,

Pradipta.

0 Ashwin Venkatesh 1 month ago in reply to Pradipta Bandyopadhyay

Prodigy 120 points

Hi,

the ret after MemInit and ECC_Init is always PASS. I was just moving the statements while debugging for the issue.
ECC_Init returns PASS, and as soon as its done, I get the Interrupt flag even before injecting an error.

Thanks.

Sensors

Sensors forum

AWR2944P: ESM interrupt hits after ECC init