Fixes #2294 : RX path not enabled on Waveshare RP2040#2298
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TheMalkavien wants to merge 1 commit intomeshcore-dev:devfrom
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Fixes #2294 : RX path not enabled on Waveshare RP2040#2298TheMalkavien wants to merge 1 commit intomeshcore-dev:devfrom
TheMalkavien wants to merge 1 commit intomeshcore-dev:devfrom
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The Waveshare RP2040-LoRa board has an RF switch with two complementary control lines: - DIO2 (CTRL) -- driven automatically by the SX1262 chip: HIGH on TX, LOW on RX - GPIO17 (!CTRL) -- was not configured in MeshCore, so it floated and the switch never properly selected the LNA/RX path Without this pin driven, the RF switch never switches to RX mode, resulting in completely degraded reception. TX was unaffected because DIO2 alone is sufficient to activate the TX path. Adding SX126X_RXEN=17 lets RadioLib drive GPIO17 as the complement of DIO2, so the switch correctly routes the signal to the LNA on receive. Reference: https://files.waveshare.com/wiki/RP2040-LoRa/Rp2040-lora-sch.pdf
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Fixes #2294
The Waveshare RP2040-LoRa board has an RF switch with two complementary control lines:
Without this pin driven, the RF switch never switches to RX mode, resulting in completely degraded reception. TX was unaffected because DIO2 alone is sufficient to activate the TX path.
Adding SX126X_RXEN=17 lets RadioLib drive GPIO17 as the complement of DIO2, so the switch correctly routes the signal to the LNA on receive.
Reference: https://files.waveshare.com/wiki/RP2040-LoRa/Rp2040-lora-sch.pdf