firmware/variants/diy/nrf52_promicro_diy_tcxo/variant.h
Tom 89c1e041e1
Add in RF95 support to Pro-micro DIY (#5055)
* Add in RF95 support

Added in lines to enable RF95 modules. Tested on SX1262 by NomDeTom/ @Nestpebble . Tested with RA02 by Ludovic / @lboue

* Trunk
2024-10-14 07:59:38 -05:00

183 lines
7.1 KiB
C
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#ifndef _VARIANT_PROMICRO_DIY_
#define _VARIANT_PROMICRO_DIY_
/** Master clock frequency */
#define VARIANT_MCK (64000000ul)
// #define USE_LFXO // Board uses 32khz crystal for LF
#define USE_LFRC // Board uses RC for LF
#define PROMICRO_DIY_TCXO
/*----------------------------------------------------------------------------
* Headers
*----------------------------------------------------------------------------*/
#include "WVariant.h"
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
/*
NRF52 PRO MICRO PIN ASSIGNMENT
| Pin   | Function   |   | Pin     | Function     | RF95 |
| ----- | ----------- | --- | -------- | ------------ | ----- |
| Gnd   |             |   | vbat     |             | |
| P0.06 | Serial2 RX |   | vbat     |             | |
| P0.08 | Serial2 TX |   | Gnd     |             | |
| Gnd   |             |   | reset   |             | |
| Gnd   |             |   | ext_vcc | *see 0.13   | |
| P0.17 | RXEN       |   | P0.31   | BATTERY_PIN | |
| P0.20 | GPS_RX     |   | P0.29   | BUSY         | DIO0 |
| P0.22 | GPS_TX     |   | P0.02   | MISO | MISO |
| P0.24 | GPS_EN     |   | P1.15   | MOSI         | MOSI |
| P1.00 | BUTTON_PIN |   | P1.13   | CS           | CS   |
| P0.11 | SCL         |   | P1.11   | SCK         | SCK |
| P1.04 | SDA         |   | P0.10   | DIO1/IRQ     | DIO1 |
| P1.06 | Free pin   |   | P0.09   | RESET       | RST |
|       |             |   |         |             | |
|       | Mid board   |   |         | Internal     | |
| P1.01 | Free pin   |   | 0.15     | LED         | |
| P1.02 | Free pin   |   | 0.13     | 3V3_EN       | |
| P1.07 | Free pin   |   |         |             | |
*/
// Number of pins defined in PinDescription array
#define PINS_COUNT (48)
#define NUM_DIGITAL_PINS (48)
#define NUM_ANALOG_INPUTS (1)
#define NUM_ANALOG_OUTPUTS (0)
// Pin 13 enables 3.3V periphery. If the Lora module is on this pin, then it should stay enabled at all times.
#define PIN_3V3_EN (0 + 13) // P0.13
// Analog pins
#define BATTERY_PIN (0 + 31) // P0.31 Battery ADC
#define ADC_CHANNEL ADC1_GPIO4_CHANNEL
#define ADC_RESOLUTION 14
#define BATTERY_SENSE_RESOLUTION_BITS 12
#define BATTERY_SENSE_RESOLUTION 4096.0
// Definition of milliVolt per LSB => 3.0V ADC range and 12-bit ADC resolution = 3000mV/4096
#define VBAT_MV_PER_LSB (0.73242188F)
// Voltage divider value => 1.5M + 1M voltage divider on VBAT = (1.5M / (1M + 1.5M))
#define VBAT_DIVIDER (0.6F)
// Compensation factor for the VBAT divider
#define VBAT_DIVIDER_COMP (1.73)
// Fixed calculation of milliVolt from compensation value
#define REAL_VBAT_MV_PER_LSB (VBAT_DIVIDER_COMP * VBAT_MV_PER_LSB)
#undef AREF_VOLTAGE
#define AREF_VOLTAGE 3.0
#define VBAT_AR_INTERNAL AR_INTERNAL_3_0
#define ADC_MULTIPLIER VBAT_DIVIDER_COMP // REAL_VBAT_MV_PER_LSB
#define VBAT_RAW_TO_SCALED(x) (REAL_VBAT_MV_PER_LSB * x)
// WIRE IC AND IIC PINS
#define WIRE_INTERFACES_COUNT 1
#define PIN_WIRE_SDA (32 + 4) // P1.04
#define PIN_WIRE_SCL (0 + 11) // P0.11
// LED
#define PIN_LED1 (0 + 15) // P0.15
#define LED_BUILTIN PIN_LED1
// Actually red
#define LED_BLUE PIN_LED1
#define LED_STATE_ON 1 // State when LED is lit
// Button
#define BUTTON_PIN (32 + 0) // P1.00
// GPS
#define PIN_GPS_TX (0 + 22) // P0.22
#define PIN_GPS_RX (0 + 20) // P0.20
#define PIN_GPS_EN (0 + 24) // P0.24
#define GPS_POWER_TOGGLE
#define GPS_UBLOX
// define GPS_DEBUG
// UART interfaces
#define PIN_SERIAL1_RX PIN_GPS_TX
#define PIN_SERIAL1_TX PIN_GPS_RX
#define PIN_SERIAL2_RX (0 + 6) // P0.06
#define PIN_SERIAL2_TX (0 + 8) // P0.08
// Serial interfaces
#define SPI_INTERFACES_COUNT 1
#define PIN_SPI_MISO (0 + 2) // P0.02
#define PIN_SPI_MOSI (32 + 15) // P1.15
#define PIN_SPI_SCK (32 + 11) // P1.11
#define LORA_MISO PIN_SPI_MISO
#define LORA_MOSI PIN_SPI_MOSI
#define LORA_SCK PIN_SPI_SCK
#define LORA_CS (32 + 13) // P1.13
// LORA MODULES
#define USE_LLCC68
#define USE_SX1262
#define USE_RF95
#define USE_SX1268
// RF95 CONFIG
#define LORA_DIO0 (0 + 29) // P0.10 IRQ
#define LORA_DIO1 (0 + 10) // P0.10 IRQ
#define LORA_RESET (0 + 9) // P0.09
// RX/TX for RFM95/SX127x
#define RF95_RXEN (0 + 17) // P0.17
#define RF95_TXEN RADIOLIB_NC // Assuming that DIO2 is connected to TXEN pin. If not, TXEN must be connected.
// SX126X CONFIG
#define SX126X_CS (32 + 13) // P1.13 FIXME - we really should define LORA_CS instead
#define SX126X_DIO1 (0 + 10) // P0.10 IRQ
#define SX126X_DIO2_AS_RF_SWITCH // Note for E22 modules: DIO2 is not attached internally to TXEN for automatic TX/RX switching,
// so it needs connecting externally if it is used in this way
#define SX126X_BUSY (0 + 29) // P0.29
#define SX126X_RESET (0 + 9) // P0.09
#define SX126X_RXEN (0 + 17) // P0.17
#define SX126X_TXEN RADIOLIB_NC // Assuming that DIO2 is connected to TXEN pin. If not, TXEN must be connected.
// #define SX126X_MAX_POWER 8 set this if using a high-power board!
/*
On the SX1262, DIO3 sets the voltage for an external TCXO, if one is present. If one is not present, use TCXO_OPTIONAL to try both
settings.
| Mfr | Module | TCXO | RF Switch | Notes |
| ------------ | ---------------- | ---- | --------- | ------------------------------------- |
| Ebyte | E22-900M22S | Yes | Ext | |
| Ebyte | E22-900MM22S | No | Ext | |
| Ebyte | E22-900M30S | Yes | Ext | |
| Ebyte | E22-900M33S | Yes | Ext | MAX_POWER must be set to 8 for this |
| Ebyte | E220-900M22S | No | Ext | LLCC68, looks like DIO3 not connected |
| AI-Thinker | RA-01SH | No | Int | SX1262 |
| Heltec | HT-RA62 | Yes | Int | |
| NiceRF | Lora1262 | yes | Int | |
| Waveshare | Core1262-HF | yes | Ext | |
| Waveshare | LoRa Node Module | yes | Int | |
| Seeed | Wio-SX1262 | yes | Int | Sooooo cute! |
| AI-Thinker | RA-02 | No | Int | SX1278 **433mhz band only** |
| RF Solutions | RFM95 | No | Int | Untested |
*/
#define SX126X_DIO3_TCXO_VOLTAGE 1.8
#define TCXO_OPTIONAL // make it so that the firmware can try both TCXO and XTAL
extern float tcxoVoltage; // make this available everywhere
#ifdef __cplusplus
}
#endif
/*----------------------------------------------------------------------------
* Arduino objects - C++ only
*----------------------------------------------------------------------------*/
#endif