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Add option to change between SPI0 and SPI1 on RP2040 #1730

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Add option to change between SPI0 and SPI1 on RP2040 #1730

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8 changes: 8 additions & 0 deletions variants/rpi_picow/platformio.ini
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,14 @@ build_flags = ${rp2040_base.build_flags}
-I variants/rpi_picow
; -D PICOW
; -D HW_SPI1_DEVICE

; Change between SPI and SPI1
; Default SPI1
-D PICOW_SPI=SPI1
; Alternative SPI aka SPI0 hardware on RP2040
; -D PICOW_SPI=SPI
; Set SPI and other pins correctly when changing SPI hardware

-D P_LORA_DIO_1=20
-D P_LORA_NSS=3
-D P_LORA_RESET=15
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13 changes: 10 additions & 3 deletions variants/rpi_picow/target.cpp
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Expand Up @@ -4,8 +4,11 @@

PicoWBoard board;

RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI1);

#ifdef PICOW_SPI // if defined in config, use config value
RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, PICOW_SPI);
#else // If not defines use default
RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI1);
#endif
WRAPPER_CLASS radio_driver(radio, board);

VolatileRTCClock fallback_clock;
Expand All @@ -15,7 +18,11 @@ SensorManager sensors;
bool radio_init() {
rtc_clock.begin(Wire);

return radio.std_init(&SPI1);
#ifdef PICOW_SPI // If defined in config, use defined
return radio.std_init(&PICOW_SPI);
#else // If not defines, use default
return radio.std_init(&SPI1);
#endif
}

uint32_t radio_get_rng_seed() {
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