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After thoroughly reading schematics and documentation, i conclude that this is theoretically the right definition for this hookup.

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Thomas Göttgens
2023-01-22 00:45:38 +01:00
parent 1941d196bb
commit e9acf413fb
2 changed files with 29 additions and 2 deletions
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26
variants/rak4631/variant.h
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@@ -176,13 +176,35 @@ static const uint8_t SCK = PIN_SPI_SCK;
*/
// RAK4630 LoRa module
/* Setup of the SX1262 LoRa module ( https://docs.rakwireless.com/Product-Categories/WisBlock/RAK4631/Datasheet/ )
P1.10 NSS SPI NSS (Arduino GPIO number 42)
P1.11 SCK SPI CLK (Arduino GPIO number 43)
P1.12 MOSI SPI MOSI (Arduino GPIO number 44)
P1.13 MISO SPI MISO (Arduino GPIO number 45)
P1.14 BUSY BUSY signal (Arduino GPIO number 46)
P1.15 DIO1 DIO1 event interrupt (Arduino GPIO number 47)
P1.06 NRESET NRESET manual reset of the SX1262 (Arduino GPIO number 38)
Important for successful SX1262 initialization:
* Setup DIO2 to control the antenna switch
* Setup DIO3 to control the TCXO power supply
* Setup the SX1262 to use it's DCDC regulator and not the LDO
* RAK4630 schematics show GPIO P1.07 connected to the antenna switch, but it should not be initialized, as DIO2 will do the control of the antenna switch
SO GPIO 39/TXEN MAY NOT BE DEFINED FOR SUCCESSFUL OPERATION OF THE SX1262 - TG
*/
#define USE_SX1262
#define SX126X_CS (42)
#define SX126X_DIO1 (47)
#define SX126X_BUSY (46)
#define SX126X_RESET (38)
#define SX126X_TXEN (39)
#define SX126X_RXEN (37)
// #define SX126X_TXEN (39)
// #define SX126X_RXEN (37)
#define SX126X_E22 // DIO2 controlls an antenna switch and the TCXO voltage is controlled by DIO3
// enables 3.3V periphery like GPS or IO Module