iot-serial-intercomm

• Description
• API
• Quickstart
• Upload/Debug

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Description

Reliable two host serial communication.

Features:

• send custom data (max len: 65536)
• header and data with internet checksum
• tunable retransmit ( IC_RESEND_TRIES_MAX, IC_RESEND_INTERVAL_MS )

API

• classes

Quickstart

Install using vscode command palette PlatformIO: New Terminal referring to platformio registry cli mode doc.

The example01 shows two host implementation ( host A, host B ) corresponding to two nucleo F446RE configured as follow:

• host A

  • uses Serial1 (rx:RB7, tx:PA9) for communication

• host B

  • uses Serial3 (rx:PC11_ALT1, tx:PC10_ALT1) for communication

• each host transmit its host-protocol.h info, containing host millis() to other

• each host print received other host protocol info using rxDataCallback callback

• after each send while (!ic.ackReceived()) { ... } loop ensure packet is acknowledge by counterpart

Examples

• hostA example
• hostB example

Upload/Debug

• to upload two board simultaneosly connected must configure custom_hla_serial id in platformio.ini
• select which environment with Platformio: Switch Project Environment
• this allow start two debug session ( use CTRL+ALT+B to ensure rebuild and reload may required ) then hit F5