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AM3352: I want to know the amount of received data in order to use CPPI-DMA.

Sh.Sasaki
Guru 13625 points
Part Number: AM3352

Hi everyone,

I want to know the amount of received data in order to use CPPI-DMA.

After transferring 100 bytes by bulk transfer, my customer checked Buffer 0 length(21-0 bits) of PD3,
but my customer always read 512 and could not grasp the exact number of transfer data.

Which register should my customer read to understand the receive data size?

Best regards,
Sasaki

  • 0
    TI__Mastermind 30546 points
    Sasaki-san,

    Thank you for your question.

    In order to best answer it, would you please confirm what software you are using? Linux or RTOS? And, what version please? Thank you.
  • 0 in reply to RonB
    Guru 13625 points

    Hi RonB-san,

    Thank you for your reply.

    My customer's SW is PROCESSOR-SDK-RTOS-AM335X 05_01_00_11.

    However, since the content of the customer's question has changed, I will post it again.
    So I want to close this thread once.

    Best regards,

    Sasaki