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F429 Working Stby, Stop & Wake PA0 (#3787)

This commit is contained in:
NMSTEC 2022-01-12 20:18:58 -08:00 committed by GitHub
parent 32fa1af033
commit 190c895e05
2 changed files with 43 additions and 21 deletions
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18
firmware/config/boards/proteus/board_configuration.cpp
View File

@ -218,19 +218,35 @@ void setBoardDefaultConfiguration() {
}
void boardPrepareForStop() {
#ifdef STM32F7XX
// enable EXTI on PD0 - CAN RX pin
palSetPadMode(GPIOD, 0, PAL_MODE_INPUT);
palEnableLineEvent(PAL_LINE(GPIOD, 0), PAL_EVENT_MODE_RISING_EDGE);
#endif
#ifdef STM32F4XX
// enable EXTI on PA0 - The only WKUP pin F4 has.
PWR->CR |= PWR_CR_CWUF; //Clear Wakeup Pin flag for PA0
palSetPadMode(GPIOA, 0, PAL_MODE_INPUT);
palEnableLineEvent(PAL_LINE(GPIOA, 0), PAL_EVENT_MODE_RISING_EDGE);
#endif
}
void boardPrepareForStandby() {
// We're out of luck trying to wake from standby on an F4, since it can only wake from PA0
#ifdef STM32F7XX
PWR->CSR2 |= PWR_CSR2_EWUP1; //EWUP1: Enable Wakeup pin for PA0
PWR->CR2 |= PWR_CR2_CWUPF1; //Clear Wakeup Pin flag for PA0
#endif
#ifdef STM32F4XX
PWR->CR |= PWR_CR_CWUF; //Clear Wakeup Pin flag for PA0
PWR->CSR |= PWR_CSR_EWUP; //Enable Wakeup Pin for PA0
#endif
#ifdef STM32H7XX
// Wake on wakeup pin 0 - PA0
PWR->WKUPEPR = PWR_WKUPEPR_WKUPEN1;

46
firmware/hw_layer/ports/stm32/stm32f4/mpu_util.cpp
View File

@ -4,7 +4,7 @@
* @date Jul 27, 2014
* @author Andrey Belomutskiy, (c) 2012-2020
*/
#include "pch.h"
#include "flash_int.h"
bool allowFlashWhileRunning() {
@ -33,19 +33,28 @@ uintptr_t getFlashAddrSecondCopy() {
void stm32_stop() {
SysTick->CTRL = 0;
__disable_irq();
RCC->AHB1RSTR = RCC_AHB1RSTR_GPIOERST;
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
enginePins.errorLedPin.setValue(0);
enginePins.runningLedPin.setValue(0);
enginePins.communicationLedPin.setValue(0);
enginePins.warningLedPin.setValue(0);
// configure mode bits
// Do anything the board wants to prepare for stop mode - enabling wakeup sources!
boardPrepareForStop();
PWR->CR &= ~PWR_CR_PDDS; // cleared PDDS means stop mode (not standby)
PWR->CR |= PWR_CR_FPDS; // turn off flash in stop mode
PWR->CR |= PWR_CR_LPDS; // regulator in low power mode
PWR->CR |= PWR_CR_FPDS; // turn off flash in stop mode
#ifdef STM32F429xx
PWR->CR |= PWR_CR_UDEN; // regulator underdrive in stop mode *
PWR->CR |= PWR_CR_LPUDS; // low power regulator in under drive mode
#endif
PWR->CR |= PWR_CR_LPDS; // regulator in low power mode
// enable Deepsleep mode
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
// Wait for event - this will return when stop mode is done
__WFE();
__disable_irq();
__WFI();
// Lastly, reboot
NVIC_SystemReset();
@ -53,17 +62,14 @@ void stm32_stop() {
void stm32_standby() {
SysTick->CTRL = 0;
__disable_irq();
// configure mode bits
PWR->CR |= PWR_CR_PDDS; // PDDS = use standby mode (not stop mode)
// enable Deepsleep mode
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
PWR->CR |= PWR_CR_PDDS; // PDDS = use standby mode (not stop mode)
PWR->CR |= PWR_CR_CSBF; // Clear standby flag
// Wait for event - this should never return as it kills the chip until a reset
__WFE();
// Do anything the board wants to prepare for standby mode - enabling wakeup sources!
boardPrepareForStandby();
// Lastly, reboot
NVIC_SystemReset();
__disable_irq();
__WFI();
}