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TMS320F280025: TI routine modification issue

Part Number: TMS320F280025


Hi team,

Here's an issue from the customer may need your help:

Customer use the routine(LIN_ex2_science_loopback)to modify SCI mode in the LIN module for data transmitting and receiving, and make the following changes:

1. Disables the Lookback mode.

2. the receive and transmit pins are set to 28 and 29.

Before modification, test routine can be properly entered into the dataRxISR interrupt function. However, after the modification, the transmission of the data frame through the serial debug assistant shows that the data cannot be received into the dataRxISR interrupt function and that the data frame has been tested on the hardware to properly transmit the GPIO29 pin.

The transmitted data frame is 01 03 F0 08 00 01 36 C8 and the transmitted baud rate is set to 9600. Here is the modified routine.

Could you help check this case? Thanks.

Best Regards,

Cherry