87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
// RH_STM32WLx.cpp
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//
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// Copyright (C) 2023 Mike McCauley
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// $Id: RH_STM32WLx.cpp,v 1.27 2020/07/05 08:52:21 mikem Exp $
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//
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#include <RH_STM32WLx.h>
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#include <RHSUBGHZSPI.h>
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// Are we building for a suitable STM processor
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#if defined(SUBGHZSPI_BASE)
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// On this chip, the radio is connected by a dedicated, internal SPI interface called SubGhz,
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// and accessed via our RHSUBGHZSPI
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static RHSUBGHZSPI subghzspi;
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// Set up radio management pins for various modes for your specific radio wiring
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// YOU MUST DO THIS FOR YOUR PARTICULAR RADIO. FAILURE TO SET
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// THIS UP PROPERLY WILL CERTAINLY PREVENT TRANSMISSION AT FULL
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// POWER AND POSSIBLY RECEPTION TOO
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#if (RH_PLATFORM == RH_PLATFORM_ARDUINO && defined(ARDUINO_LORA_E5_MINI))
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// EG: Seeed WiO-E5 mini
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// These LoRa-E5 modules have an RF switch but only use the high power PA
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// Only 2 control pins are used
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static RH_SX126x::RadioPinConfig radioPinConfig = {
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.pinNumber = {PA4, PA5, RH_INVALID_PIN},
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.configState = {
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{RH_SX126x::RadioPinConfigMode_IDLE, LOW, LOW},
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{RH_SX126x::RadioPinConfigMode_RX, HIGH, LOW},
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{RH_SX126x::RadioPinConfigMode_TX_HIGH_POWER, LOW, HIGH}, // low power not supported on this module
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{RH_SX126x::RadioPinConfigMode_EOT},
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}
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};
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#elif (RH_PLATFORM == RH_PLATFORM_ARDUINO && defined(ARDUINO_NUCLEO_WL55JC1))
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// These devices have an RF switch and low and high power PAs
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// 3 control pins are used
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.pinNumber = {PC3, PC4, PC5},
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.configState = {
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{RH_SX126x::RadioPinConfigMode_IDLE, LOW, LOW, LOW},
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{RH_SX126x::RadioPinConfigMode_RX, HIGH, HIGH, LOW},
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{RH_SX126x::RadioPinConfigMode_TX_LOW_POWER, HIGH, HIGH, HIGH},
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{RH_SX126x::RadioPinConfigMode_TX_HIGH_POWER, HIGH, LOW, HIGH},
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{RH_SX126x::RadioPinConfigMode_EOT},
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}
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};
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#else
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#warning RH_STM32WLx Do not know how to set radio control pins for this processor
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#endif
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RH_STM32WLx::RH_STM32WLx()
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:
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RH_SX126x(RH_INVALID_PIN, RH_INVALID_PIN, RH_INVALID_PIN, RH_INVALID_PIN, subghzspi, &radioPinConfig)
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{
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SubGhz.setResetActive(true);
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delay(2);
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SubGhz.setResetActive(false);
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delay(200); // After reset: else can get runt transmission during startup FIXME: wait until ready? No doesnt work
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}
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// Override the init() function becaue we need to adjust some things afterwards to suit this radio module
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bool RH_STM32WLx::init()
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{
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bool ret = RH_SX126x::init(); // In STDBY mode after this
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setDIO2AsRfSwitchCtrl(false); // Dont use DIO2 as RF control for Wio-E5, which uses separate pins FIXME: not correct for NICERF
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setTCXO(1.7, 5000); // MUST do this (in standby mode) else get no output. volts, us
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return ret;
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}
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bool RH_STM32WLx::setupInterruptHandler()
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{
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// It is necessary to use the SUBGHZ SPI radio interface and its built-in interrupt support
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// BUT: only the first one can be used if RHSUBGHZSPI is in use
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// This is is a modern lambda to attach a C++ function as an ordinary C callback
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// Hopefuly this will compile successfully everywhere. If not let us know and we will
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// change it to something more backwards compatible
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SubGhz.attachInterrupt([this]() {
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handleInterrupt();
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});
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return true;
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}
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#endif
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