[Bug]: wio-e5 radio fails to initialize

[dchokola]

Category

Hardware Compatibility

Hardware

Other

Firmware Version

2.5.20

Description

The SK1262 inside the STM32WLE5JC needs its TCXO initialized. Documentation says to set it 200 mV below Vcc.

This one-liner does the job:

--- a/src/mesh/STM32WLE5JCInterface.cpp
+++ b/src/mesh/STM32WLE5JCInterface.cpp
@@ -18,6 +18,8 @@ bool STM32WLE5JCInterface::init()
 {
     RadioLibInterface::init();
 
+    SX126xInterface::setTCXOVoltage(3.0f);
+
     lora.setRfSwitchTable(rfswitch_pins, rfswitch_table);
 
     if (power > STM32WLx_MAX_POWER) // This chip has lower power limits than some

Relevant log output

[lyusupov]

@dchokola

FYI: jgromes/RadioLib#1174 (comment)

[GUVWAF]

@dchokola Thanks for the report. According to Seeed Studio's driver, it should be set to 1.7V. This was set correctly before, but a newly introduced variable in the parent class caused it to be overridden. Should be fixed with #6063.