Can Modbus rtu work with DMA?

I’m upgrading my device (MBED 6.11 based, NUCLEO F429ZG) to use standard Modbus RTU protocol.My device can be connected to a PC/PLC via RS485 or serial port (RS232).
https://os.mbed.com/teams/Nuvoton/code/Modbus/
My question is:
As my bandrate is 115200, and there are four threads in my program, so now there is communication error sometimes. Now I wonder, modbus rtu working with DMA can fix this error or not?