Steps to Reproduce the Issue:

1. Configure 2 UARTS with DMA enabled
2. Generate code and Compile and load an example from CCS

Rootcasue Details :
In the generated code, for two UART DMA channel configs, the PKTDMA instant is supposed to be the same.
But here the generated code creates two separate PKTDMA instants for UART's, which creates an issue.

To fix this issue, follow the steps :

The drvhandle parameter picks the one PKTDMA instantly only.

gUartUdmaChConfig[1].drvHandle = &gUdmaDrvObj[0];Code

Please look at the fix details in the link below .

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1486852/am6421-how-many-pktdma-can-be-configuration-at-most