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SPI EDMA completion interrupt in a dataframe

Other Parts Discussed in Thread: AM3359, SYSBIOS

Hello,

i am using AM3359 on ICE Board. Now the AM3359 is in SPI Slave Mode with EDMA enabled. The AM3359 gets the data from an external SPI Master and sends data to the Master.

After all (30Byte) i get an final transfer completion interrupt.

Which is a good solution to get an interrupt after 6 Byte and then after the others 24 Bytes ?

  • It´s possible to work with intermediate transfer completion, so i think i will get every 6Byte an interrupt? (3 interrupts to much)
  • Is AB-synchronized also a solution?
  • I have seen sth. about chaining. It seems that it´s possible to chain a paramset with 6byte to an paramset with 24byte? Is it right?

What would be the best solution, to get two transfer completion interrupts in a 30byte frame, one after 6 and one after the remaining 24bytes.

Thank you.