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issue about imx6 uart dma

Question asked by Zongbiao Liao on Mar 13, 2017
Latest reply on Mar 14, 2017 by igorpadykov

Hello Community


My customer uses BSP3.0.35_4.1.0 on i.mx6dl and they connected BT to UART4, and they enabled SDMA for UART4.

They found that when the BT chip is communicating with i.MX6, sometimes the Rx DMA of UART4 goes to stop. 

Could you give me some advice to resolve this problem?


Best Regards