NIMU driver cache problems

Ralf Goebel

Hi,

I observed some communication problems in my application and the statistic counter tcps.RcvBadSum was increasing over time.

I think the cause is that the NIMU driver (nimu_eth.c) uses the CSL cache API which doesn't have the workaround for the L2 silicon bug of the C66 DSPs. I changed the driver to use the SYS/BIOS API and the problem seems to be solved now.

Thanks,
Ralf

over 12 years ago

ToddMullanix over 12 years ago

TI__Guru* 96960 points

Hi Ralf,

Thanks for the information! I'm make sure the interested parties are informed.

Todd

Steven Connell over 12 years ago

TI__Mastermind 45025 points

Hi Ralf,

Which device are you using? Which NSP (NDK support package (i.e. EMAC driver))?

Thanks,

Steve

Ralf Goebel over 12 years ago in reply to Steven Connell

Genius 3715 points

Hi Steve,

I'm using the C6678 and the packet driver comes with MCSDK 2.1.2.6 / PDK 1.1.2.5. I think other devices using the C66-MCSDK will also be affected.

Ralf

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NIMU driver cache problems