Files
irrigation_system/software/apps/slave_node/boards/bluepill_f103rb.overlay
Eduard Iten 1067796df4 fix(slave_node): Stabilize Modbus RTU communication
The Modbus server was previously unstable, leading to intermittent CRC errors when polled by a master. This was caused by the main thread exiting after initialization, which created timing and race condition issues for the interrupt-driven Modbus stack.

This fix ensures the main thread continues to run in a low-power sleep loop (). This provides a stable context for the Modbus server, resolving the CRC errors and ensuring reliable communication.
2025-07-01 14:30:22 +02:00

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/ {
chosen {
zephyr,console = &rtt;
zephyr,shell-uart = &rtt; // If using shell
};
rtt: rtt {
compatible = "segger,rtt-uart";
#address-cells = <1>;
#size-cells = <0>;
label = "RTT";
status = "okay";
};
};
&usart1 {
modbus0 {
compatible = "zephyr,modbus-serial";
status = "okay";
};
status = "okay";
};