MeshCore/variants/ikoka_stick_nrf/variant.cpp
kelsey hudson bed311313a Adding support for Ikoka Stick with Seeed Xiao nRF54 baseboard.
Adds a new variant 'ikoka_stick_nrf' and associated support files. This is
based on the Xiao nRF54 code with pin numbers and functions changed to suit the
differences in hardware between the WIO SX1262 board and the Ikoka Stick.

Sets the default LoRa transmit power to 9dBm to avoid burning up the frontend
in Ikoka Sticks equipped with the Ebyte 33dBm S22 module on first boot.

Adds support for an SSD1306 display connected to the display header. Note the
display pinout is the same as the RAK4631 display header so make sure to use a
display wired accordingly (aliexpress etc. SSD1306s typically have Vcc & GND
reversed from what this board expects).

Adds support for display rotation to SSD1306Display via a platformIO define.
This support was added following the same paradigms found elsewhere in the code
for rotating a display.
2025-08-10 10:44:00 -07:00

86 lines
2.4 KiB
C++

#include "variant.h"
#include "wiring_constants.h"
#include "wiring_digital.h"
#include "nrf.h"
const uint32_t g_ADigitalPinMap[] =
{
// D0 .. D10
2, // D0 is P0.02 (A0)
3, // D1 is P0.03 (A1)
28, // D2 is P0.28 (A2)
29, // D3 is P0.29 (A3)
4, // D4 is P0.04 (A4,SDA)
5, // D5 is P0.05 (A5,SCL)
43, // D6 is P1.11 (TX)
44, // D7 is P1.12 (RX)
45, // D8 is P1.13 (SCK)
46, // D9 is P1.14 (MISO)
47, // D10 is P1.15 (MOSI)
// LEDs
26, // D11 is P0.26 (LED RED)
6, // D12 is P0.06 (LED BLUE)
30, // D13 is P0.30 (LED GREEN)
14, // D14 is P0.14 (READ_BAT)
// LSM6DS3TR
40, // D15 is P1.08 (6D_PWR)
27, // D16 is P0.27 (6D_I2C_SCL)
7, // D17 is P0.07 (6D_I2C_SDA)
11, // D18 is P0.11 (6D_INT1)
// MIC
42, // D19 is P1.10 (MIC_PWR)
32, // D20 is P1.00 (PDM_CLK)
16, // D21 is P0.16 (PDM_DATA)
// BQ25100
13, // D22 is P0.13 (HICHG)
17, // D23 is P0.17 (~CHG)
//
21, // D24 is P0.21 (QSPI_SCK)
25, // D25 is P0.25 (QSPI_CSN)
20, // D26 is P0.20 (QSPI_SIO_0 DI)
24, // D27 is P0.24 (QSPI_SIO_1 DO)
22, // D28 is P0.22 (QSPI_SIO_2 WP)
23, // D29 is P0.23 (QSPI_SIO_3 HOLD)
// NFC
9, // D30 is P0.09 (NFC1)
10, // D31 is P0.10 (NFC2)
// VBAT
31, // D32 is P0.31 (VBAT)
};
void initVariant()
{
// Disable reading of the BAT voltage.
// https://wiki.seeedstudio.com/XIAO_BLE#q3-what-are-the-considerations-when-using-xiao-nrf52840-sense-for-battery-charging
pinMode(VBAT_ENABLE, OUTPUT);
//digitalWrite(VBAT_ENABLE, HIGH);
// This was taken from Seeed github butis not coherent with the doc,
// VBAT_ENABLE should be kept to LOW to protect P0.14, (1500/500)*(4.2-3.3)+3.3 = 3.9V > 3.6V
// This induces a 3mA current in the resistors :( but it's better than burning the nrf
digitalWrite(VBAT_ENABLE, LOW);
// Low charging current (50mA)
// https://wiki.seeedstudio.com/XIAO_BLE#battery-charging-current
//pinMode(PIN_CHARGING_CURRENT, INPUT);
// High charging current (100mA)
pinMode(PIN_CHARGING_CURRENT, OUTPUT);
digitalWrite(PIN_CHARGING_CURRENT, LOW);
pinMode(PIN_QSPI_CS, OUTPUT);
digitalWrite(PIN_QSPI_CS, HIGH);
pinMode(LED_RED, OUTPUT);
digitalWrite(LED_RED, HIGH);
pinMode(LED_GREEN, OUTPUT);
digitalWrite(LED_GREEN, HIGH);
pinMode(LED_BLUE, OUTPUT);
digitalWrite(LED_BLUE, HIGH);
}