firmware/variants/rp2040-lora/variant.h
Mictronics e37acae405
Fix RF switching logic on rp2040-lora board. (#4486)
* Fix LED pinout for T-Echo board marked v1.0, date 2021-6-28

* Merge PR #420

* Fixed double and missing Default class.

* Use correct format specifier and fixed typo.

* Removed duplicate code.

* Fix error: #if with no expression

* Fix warning: extra tokens at end of #endif directive.

* Fix antenna switching logic. Complementary-pin control logic is required on the rp2040-lora board.

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Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
2024-08-17 15:09:13 -05:00

59 lines
1.6 KiB
C

// #define RADIOLIB_CUSTOM_ARDUINO 1
// #define RADIOLIB_TONE_UNSUPPORTED 1
// #define RADIOLIB_SOFTWARE_SERIAL_UNSUPPORTED 1
#define ARDUINO_ARCH_AVR
// #define USE_SH1106 1
// default I2C pins:
// SDA = 4
// SCL = 5
// Recommended pins for SerialModule:
// txd = 8
// rxd = 9
#define EXT_NOTIFY_OUT 22
#undef BUTTON_PIN // Pin 17 used for antenna switching via DIO4
#define LED_PIN PIN_LED
// #define BATTERY_PIN 26
// ratio of voltage divider = 3.0 (R17=200k, R18=100k)
// #define ADC_MULTIPLIER 3.1 // 3.0 + a bit for being optimistic
#define USE_SX1262
#undef LORA_SCK
#undef LORA_MISO
#undef LORA_MOSI
#undef LORA_CS
// https://www.waveshare.com/rp2040-lora.htm
// https://www.waveshare.com/img/devkit/RP2040-LoRa-HF/RP2040-LoRa-HF-details-11.jpg
#define LORA_SCK 14 // GPIO14
#define LORA_MISO 24 // GPIO24
#define LORA_MOSI 15 // GPIO15
#define LORA_CS 13 // GPIO13
#define LORA_DIO0 RADIOLIB_NC // No GPIO connection
#define LORA_RESET 23 // GPIO23
#define LORA_BUSY 18 // GPIO18
#define LORA_DIO1 16 // GPIO16
#define LORA_DIO2 RADIOLIB_NC // Antenna switching, no GPIO connection
#define LORA_DIO3 RADIOLIB_NC // No GPIO connection
#define LORA_DIO4 17 // GPIO17
// On rp2040-lora board the antenna switch is wired and works with complementary-pin control logic.
// See PE4259 datasheet page 4
#ifdef USE_SX1262
#define SX126X_CS LORA_CS
#define SX126X_DIO1 LORA_DIO1
#define SX126X_BUSY LORA_BUSY
#define SX126X_RESET LORA_RESET
#define SX126X_DIO2_AS_RF_SWITCH // Antenna switch CTRL
#define SX126X_RXEN LORA_DIO4 // Antenna switch !CTRL via GPIO17
// #define SX126X_DIO3_TCXO_VOLTAGE 1.8
#endif