TMS320C6746: Synchronization for UART peripheral through EDMA.

Parul Bhatt

Prodigy 80 points

Part Number: TMS320C6746
Other Parts Discussed in Thread: OMAPL138

Hi,

When setting up EDMA3 transfers for UART, is it always necessary have A- synchronized transfer?

Will AB-synchronization be inefficient in this case?

Regards

Parul

over 8 years ago

0 Yordan Kovachev over 8 years ago

TI__Guru**** 161600 points

Share which sdk are you using?
Best Regards,
Yordan

0 Rahul Prabhu over 8 years ago

TI__Guru** 116780 points

For EDMA transfers for UART, you can use A synchronization as well as AB synchronization as you can see from Processor SDK RTOS UART driver implementation at Uart_v0.c in the directory path pdk_omapl138_1_0_1\packages\ti\drv\uart\src\v0.

For smaller data size transfers, you can use A synchronization but when you are moving data in a large buffer, you should prefer to use AB sync transfers.

Regards,
Rahul

0 Parul Bhatt over 8 years ago in reply to Rahul Prabhu

Prodigy 80 points

Thank You Rahul

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TMS320C6746: Synchronization for UART peripheral through EDMA.