From e3bb225efb158cb0d757edb14bd7c56205e347db Mon Sep 17 00:00:00 2001 From: Frieder Schrempf Date: Tue, 9 Dec 2025 17:05:33 +0100 Subject: [PATCH] Deduplicate DC/DC regulator enable for NRF52 boards Some NRF52 boards are able to use the internal power-efficient DC/DC regulator. Add a new class that can be inherited by board classes to enable this feature and reduce the power consumption. Signed-off-by: Frieder Schrempf --- src/helpers/NRF52Board.cpp | 17 +++++++++++++++++ src/helpers/NRF52Board.h | 14 +++++++++++++- variants/rak_wismesh_tag/RAKWismeshTagBoard.cpp | 11 +---------- variants/rak_wismesh_tag/RAKWismeshTagBoard.h | 2 +- variants/t1000-e/T1000eBoard.cpp | 11 +---------- variants/t1000-e/T1000eBoard.h | 2 +- variants/wio-tracker-l1/WioTrackerL1Board.cpp | 11 +---------- variants/wio-tracker-l1/WioTrackerL1Board.h | 2 +- variants/wio_wm1110/WioWM1110Board.cpp | 11 +---------- variants/wio_wm1110/WioWM1110Board.h | 2 +- variants/xiao_nrf52/XiaoNrf52Board.cpp | 11 +---------- variants/xiao_nrf52/XiaoNrf52Board.h | 2 +- 12 files changed, 40 insertions(+), 56 deletions(-) diff --git a/src/helpers/NRF52Board.cpp b/src/helpers/NRF52Board.cpp index ee50fe4c..93dfb288 100644 --- a/src/helpers/NRF52Board.cpp +++ b/src/helpers/NRF52Board.cpp @@ -1,6 +1,23 @@ #if defined(NRF52_PLATFORM) #include "NRF52Board.h" +void NRF52Board::begin() { + startup_reason = BD_STARTUP_NORMAL; +} + +void NRF52BoardDCDC::begin() { + NRF52Board::begin(); + + // Enable DC/DC converter for improved power efficiency + uint8_t sd_enabled = 0; + sd_softdevice_is_enabled(&sd_enabled); + if (sd_enabled) { + sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE); + } else { + NRF_POWER->DCDCEN = 1; + } +} + // Temperature from NRF52 MCU float NRF52Board::getMCUTemperature() { NRF_TEMP->TASKS_START = 1; // Start temperature measurement diff --git a/src/helpers/NRF52Board.h b/src/helpers/NRF52Board.h index c349a8e7..588c190a 100644 --- a/src/helpers/NRF52Board.h +++ b/src/helpers/NRF52Board.h @@ -10,9 +10,21 @@ protected: uint8_t startup_reason; public: - virtual void begin() { startup_reason = BD_STARTUP_NORMAL; } + virtual void begin(); virtual uint8_t getStartupReason() const override { return startup_reason; } float getMCUTemperature() override; virtual void reboot() override { NVIC_SystemReset(); } }; + +/* + * The NRF52 has an internal DC/DC regulator that allows increased efficiency + * compared to the LDO regulator. For being able to use it, the module/board + * needs to have the required inductors and and capacitors populated. If the + * hardware requirements are met, this subclass can be used to enable the DC/DC + * regulator. + */ +class NRF52BoardDCDC : virtual public NRF52Board { +public: + virtual void begin() override; +}; #endif \ No newline at end of file diff --git a/variants/rak_wismesh_tag/RAKWismeshTagBoard.cpp b/variants/rak_wismesh_tag/RAKWismeshTagBoard.cpp index 11b9f0a5..88d09249 100644 --- a/variants/rak_wismesh_tag/RAKWismeshTagBoard.cpp +++ b/variants/rak_wismesh_tag/RAKWismeshTagBoard.cpp @@ -19,16 +19,7 @@ static void disconnect_callback(uint16_t conn_handle, uint8_t reason) { } void RAKWismeshTagBoard::begin() { - NRF52Board::begin(); - - // Enable DC/DC converter for improved power efficiency - uint8_t sd_enabled = 0; - sd_softdevice_is_enabled(&sd_enabled); - if (sd_enabled) { - sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE); - } else { - NRF_POWER->DCDCEN = 1; - } + NRF52BoardDCDC::begin(); pinMode(PIN_VBAT_READ, INPUT); pinMode(PIN_USER_BTN, INPUT_PULLUP); diff --git a/variants/rak_wismesh_tag/RAKWismeshTagBoard.h b/variants/rak_wismesh_tag/RAKWismeshTagBoard.h index 032b00af..d62dee85 100644 --- a/variants/rak_wismesh_tag/RAKWismeshTagBoard.h +++ b/variants/rak_wismesh_tag/RAKWismeshTagBoard.h @@ -8,7 +8,7 @@ #define PIN_VBAT_READ 5 #define ADC_MULTIPLIER (3 * 1.73 * 1.187 * 1000) -class RAKWismeshTagBoard : public NRF52Board { +class RAKWismeshTagBoard : public NRF52BoardDCDC { public: void begin(); diff --git a/variants/t1000-e/T1000eBoard.cpp b/variants/t1000-e/T1000eBoard.cpp index 27432b1b..9211b4c6 100644 --- a/variants/t1000-e/T1000eBoard.cpp +++ b/variants/t1000-e/T1000eBoard.cpp @@ -5,18 +5,9 @@ #include void T1000eBoard::begin() { - NRF52Board::begin(); + NRF52BoardDCDC::begin(); btn_prev_state = HIGH; - // Enable DC/DC converter for improved power efficiency - uint8_t sd_enabled = 0; - sd_softdevice_is_enabled(&sd_enabled); - if (sd_enabled) { - sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE); - } else { - NRF_POWER->DCDCEN = 1; - } - #ifdef BUTTON_PIN pinMode(BATTERY_PIN, INPUT); pinMode(BUTTON_PIN, INPUT); diff --git a/variants/t1000-e/T1000eBoard.h b/variants/t1000-e/T1000eBoard.h index c16d8ccd..32f54bb3 100644 --- a/variants/t1000-e/T1000eBoard.h +++ b/variants/t1000-e/T1000eBoard.h @@ -4,7 +4,7 @@ #include #include -class T1000eBoard : public NRF52Board { +class T1000eBoard : public NRF52BoardDCDC { protected: uint8_t btn_prev_state; diff --git a/variants/wio-tracker-l1/WioTrackerL1Board.cpp b/variants/wio-tracker-l1/WioTrackerL1Board.cpp index d07df83f..fbf64f77 100644 --- a/variants/wio-tracker-l1/WioTrackerL1Board.cpp +++ b/variants/wio-tracker-l1/WioTrackerL1Board.cpp @@ -19,18 +19,9 @@ static void disconnect_callback(uint16_t conn_handle, uint8_t reason) { } void WioTrackerL1Board::begin() { - NRF52Board::begin(); + NRF52BoardDCDC::begin(); btn_prev_state = HIGH; - // Enable DC/DC converter for improved power efficiency - uint8_t sd_enabled = 0; - sd_softdevice_is_enabled(&sd_enabled); - if (sd_enabled) { - sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE); - } else { - NRF_POWER->DCDCEN = 1; - } - pinMode(PIN_VBAT_READ, INPUT); // VBAT ADC input // Set all button pins to INPUT_PULLUP pinMode(PIN_BUTTON1, INPUT_PULLUP); diff --git a/variants/wio-tracker-l1/WioTrackerL1Board.h b/variants/wio-tracker-l1/WioTrackerL1Board.h index e1930ff7..7e82e447 100644 --- a/variants/wio-tracker-l1/WioTrackerL1Board.h +++ b/variants/wio-tracker-l1/WioTrackerL1Board.h @@ -4,7 +4,7 @@ #include #include -class WioTrackerL1Board : public NRF52Board { +class WioTrackerL1Board : public NRF52BoardDCDC { protected: uint8_t btn_prev_state; diff --git a/variants/wio_wm1110/WioWM1110Board.cpp b/variants/wio_wm1110/WioWM1110Board.cpp index cb54609d..d0ab9785 100644 --- a/variants/wio_wm1110/WioWM1110Board.cpp +++ b/variants/wio_wm1110/WioWM1110Board.cpp @@ -21,16 +21,7 @@ static void disconnect_callback(uint16_t conn_handle, uint8_t reason) { } void WioWM1110Board::begin() { - NRF52Board::begin(); - - // Enable DC/DC converter for improved power efficiency - uint8_t sd_enabled = 0; - sd_softdevice_is_enabled(&sd_enabled); - if (sd_enabled) { - sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE); - } else { - NRF_POWER->DCDCEN = 1; - } + NRF52BoardDCDC::begin(); pinMode(BATTERY_PIN, INPUT); pinMode(LED_GREEN, OUTPUT); diff --git a/variants/wio_wm1110/WioWM1110Board.h b/variants/wio_wm1110/WioWM1110Board.h index 9b4e153b..697028b0 100644 --- a/variants/wio_wm1110/WioWM1110Board.h +++ b/variants/wio_wm1110/WioWM1110Board.h @@ -11,7 +11,7 @@ #endif #define Serial Serial1 -class WioWM1110Board : public NRF52Board { +class WioWM1110Board : public NRF52BoardDCDC { public: void begin(); diff --git a/variants/xiao_nrf52/XiaoNrf52Board.cpp b/variants/xiao_nrf52/XiaoNrf52Board.cpp index 34c15767..e61f3806 100644 --- a/variants/xiao_nrf52/XiaoNrf52Board.cpp +++ b/variants/xiao_nrf52/XiaoNrf52Board.cpp @@ -21,16 +21,7 @@ static void disconnect_callback(uint16_t conn_handle, uint8_t reason) { } void XiaoNrf52Board::begin() { - NRF52Board::begin(); - - // Enable DC/DC converter for improved power efficiency - uint8_t sd_enabled = 0; - sd_softdevice_is_enabled(&sd_enabled); - if (sd_enabled) { - sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE); - } else { - NRF_POWER->DCDCEN = 1; - } + NRF52BoardDCDC::begin(); pinMode(PIN_VBAT, INPUT); pinMode(VBAT_ENABLE, OUTPUT); diff --git a/variants/xiao_nrf52/XiaoNrf52Board.h b/variants/xiao_nrf52/XiaoNrf52Board.h index 1f1490cf..07325493 100644 --- a/variants/xiao_nrf52/XiaoNrf52Board.h +++ b/variants/xiao_nrf52/XiaoNrf52Board.h @@ -6,7 +6,7 @@ #ifdef XIAO_NRF52 -class XiaoNrf52Board : public NRF52Board { +class XiaoNrf52Board : public NRF52BoardDCDC { public: void begin();