connection

eRPC hello world using Tinyproto as transport

Example of connection-oriented communication over UART using Tinyproto

Usage

Check the documentation of the erpc component. Check the documentation of the erpc_tinyproto component.

Communication between two ESP32, one as host and one as target

Assuming that:

• the "host ESP32" is connected to the PC at port /dev/ttyUSB0
• the "target ESP32" is connected to the PC at port /dev/ttyUSB1
• "host ESP32" and "target ESP32" are connected via the other UART (the one that is not used for flashing and logging)

# Build, flash and monitor the "host" firmware
idf.py -Bbuild/host -DHOST=TRUE -p /dev/ttyUSB0 flash monitor

# Build, flash and monitor the "target" firmware
idf.py -Bbuild/target -DHOST=FALSE -p /dev/ttyUSB1 flash monitor

You can try to disconnect the UARTs and re-connect. RPC communication should resume on re-connection.