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RTOS/AM5728: L3 error reporting

Michael Shklyarman
Genius 12760 points
Part Number: AM5728
Other Parts Discussed in Thread: SYSBIOS

Tool/software: TI-RTOS

Champs,

Customer is chasing very elusive errors in their SYSBIOS based application. Occasionally the processor hangs and when they connect via DAP port they observe number of L3 errors such as DSS_TARG, GPMC_TARG, L4_WKUP_TARG, HOST_CLK1_2_TARG. 

In Linux code base there is L3 driver that generates meaningful error messages when such errors occur (https://elixir.bootlin.com/linux/v4.9.12/source/drivers/bus/omap_l3_noc.c#L90 Is there anything like this in SYSBIOS? If not, how would you suggest going about debugging such issues?

thanks

Michael

  • 0
    TI__Guru**** 161600 points
    Hi Michael,

    No, I am not aware of such driver in RTOS. However they can try and check the L3 registers with CCS and decode the values using Section 14.2.3.8.5 Example for Decoding Standard/Custom Errors Logged in L3_MAIN (Linux driver follows exactly this sequence to report the L3_MAIN errors).

    Best Regards,
    Yordan