This library is intended to complement the practical aspects of modbusX ， assist in the development of peripheral drivers.

The total time is about 5 hours, and there are still many shortcomings.

Effects

Hope to help those who can not manage the following two small white, conform to any one can use this library to solve.

DMA of the transport stream.

Half-duplex usage of transport streams.

A typical application scenario is the serial port RS485 communication.

Side effects

Latency: Introduces an additional 1-2ms delay between sending and receiving data, mainly to ensure the stability of switching half-duplex directions.

Resources: Doubles RAM space consumption.