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Merged
merged 1 commit into from
Sep 27, 2021
Merged

bsp: add support for the STM32U5xx soc #60

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4 changes: 2 additions & 2 deletions src/STM32LowPower.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -191,8 +191,8 @@ void STM32LowPower::programRtcWakeUp(uint32_t ms, LP_Mode lp_mode)
break;
default:
case SHUTDOWN_MODE:
#if defined(STM32L4xx) || defined(STM32L5xx)
// For shutdown mode LSE have to be used (STM32L4 or STM32L5 series only)
#if defined(PWR_CR1_LPMS)
// For shutdown mode LSE have to be used
clkSrc = STM32RTC::LSE_CLOCK;
#else
// LSE or LSI
Expand Down
119 changes: 99 additions & 20 deletions src/low_power.c
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Original file line number Diff line number Diff line change
Expand Up @@ -20,15 +20,21 @@

#include "Arduino.h"
#include "low_power.h"
#include "stm32yyxx_ll_pwr.h"

#if defined(STM32_CORE_VERSION) && (STM32_CORE_VERSION > 0x01090000) &&\
defined(HAL_PWR_MODULE_ENABLED) && !defined(HAL_PWR_MODULE_ONLY)
#if defined(STM32_CORE_VERSION) && (STM32_CORE_VERSION > 0x01090000) \
&& defined(HAL_PWR_MODULE_ENABLED) && !defined(HAL_PWR_MODULE_ONLY)

#if defined(HAL_UART_MODULE_ENABLED) && !defined(HAL_UART_MODULE_ONLY) \
&& (defined(UART_IT_WUF) || defined(LPUART1_BASE))
#define UART_WKUP_SUPPORT
#endif

#ifdef __cplusplus
extern "C" {
#endif

#if defined(UART_IT_WUF) && defined(HAL_UART_MODULE_ENABLED) && !defined(HAL_UART_MODULE_ONLY)
#if defined(UART_WKUP_SUPPORT)
/* Save UART handler for callback */
static UART_HandleTypeDef *WakeUpUart = NULL;
#endif
Expand All @@ -37,6 +43,11 @@ static void (*WakeUpUartCb)(void) = NULL;

#if defined(PWR_FLAG_WUF)
#define PWR_FLAG_WU PWR_FLAG_WUF
#elif defined(PWR_WAKEUP_ALL_FLAG)
#define PWR_FLAG_WU PWR_WAKEUP_ALL_FLAG
#endif
#if defined(PWR_FLAG_SBF)
#define PWR_FLAG_SB PWR_FLAG_SBF
#endif

/**
Expand Down Expand Up @@ -82,7 +93,14 @@ void LowPower_EnableWakeUpPin(uint32_t pin, uint32_t mode)
PinName p = digitalPinToPinName(pin);
if (p != NC) {
#ifdef PWR_WAKEUP_PIN1
if (p == SYS_WKUP1) {
if ((p == SYS_WKUP1)
#ifdef PWR_WAKEUP_PIN1_1
|| (p == SYS_WKUP1_1)
#endif
#ifdef PWR_WAKEUP_PIN1_2
|| (p == SYS_WKUP1_2)
#endif
) {
wkup_pin = PWR_WAKEUP_PIN1;
#ifdef PWR_WAKEUP_PIN1_HIGH
if (mode != RISING) {
Expand All @@ -92,7 +110,14 @@ void LowPower_EnableWakeUpPin(uint32_t pin, uint32_t mode)
}
#endif /* PWR_WAKEUP_PIN1 */
#ifdef PWR_WAKEUP_PIN2
if (p == SYS_WKUP2) {
if ((p == SYS_WKUP2)
#ifdef PWR_WAKEUP_PIN2_1
|| (p == SYS_WKUP2_1)
#endif
#ifdef PWR_WAKEUP_PIN2_2
|| (p == SYS_WKUP2_2)
#endif
) {
wkup_pin = PWR_WAKEUP_PIN2;
#ifdef PWR_WAKEUP_PIN2_HIGH
if (mode != RISING) {
Expand All @@ -102,7 +127,14 @@ void LowPower_EnableWakeUpPin(uint32_t pin, uint32_t mode)
}
#endif /* PWR_WAKEUP_PIN2 */
#ifdef PWR_WAKEUP_PIN3
if (p == SYS_WKUP3) {
if ((p == SYS_WKUP3)
#ifdef PWR_WAKEUP_PIN3_1
|| (p == SYS_WKUP3_1)
#endif
#ifdef PWR_WAKEUP_PIN3_2
|| (p == SYS_WKUP3_2)
#endif
) {
wkup_pin = PWR_WAKEUP_PIN3;
#ifdef PWR_WAKEUP_PIN3_HIGH
if (mode != RISING) {
Expand All @@ -112,7 +144,14 @@ void LowPower_EnableWakeUpPin(uint32_t pin, uint32_t mode)
}
#endif /* PWR_WAKEUP_PIN3 */
#ifdef PWR_WAKEUP_PIN4
if (p == SYS_WKUP4) {
if ((p == SYS_WKUP4)
#ifdef PWR_WAKEUP_PIN4_1
|| (p == SYS_WKUP4_1)
#endif
#ifdef PWR_WAKEUP_PIN4_2
|| (p == SYS_WKUP4_2)
#endif
) {
wkup_pin = PWR_WAKEUP_PIN4;
#ifdef PWR_WAKEUP_PIN4_HIGH
if (mode != RISING) {
Expand All @@ -122,7 +161,14 @@ void LowPower_EnableWakeUpPin(uint32_t pin, uint32_t mode)
}
#endif /* PWR_WAKEUP_PIN4 */
#ifdef PWR_WAKEUP_PIN5
if (p == SYS_WKUP5) {
if ((p == SYS_WKUP5)
#ifdef PWR_WAKEUP_PIN5_1
|| (p == SYS_WKUP5_1)
#endif
#ifdef PWR_WAKEUP_PIN5_2
|| (p == SYS_WKUP5_2)
#endif
) {
wkup_pin = PWR_WAKEUP_PIN5;
#ifdef PWR_WAKEUP_PIN5_HIGH
if (mode != RISING) {
Expand All @@ -132,7 +178,14 @@ void LowPower_EnableWakeUpPin(uint32_t pin, uint32_t mode)
}
#endif /* PWR_WAKEUP_PIN5 */
#ifdef PWR_WAKEUP_PIN6
if (p == SYS_WKUP6) {
if ((p == SYS_WKUP6)
#ifdef PWR_WAKEUP_PIN6_1
|| (p == SYS_WKUP6_1)
#endif
#ifdef PWR_WAKEUP_PIN6_2
|| (p == SYS_WKUP6_2)
#endif
) {
wkup_pin = PWR_WAKEUP_PIN6;
#ifdef PWR_WAKEUP_PIN6_HIGH
if (mode != RISING) {
Expand All @@ -142,12 +195,26 @@ void LowPower_EnableWakeUpPin(uint32_t pin, uint32_t mode)
}
#endif /* PWR_WAKEUP_PIN6 */
#ifdef PWR_WAKEUP_PIN7
if (p == SYS_WKUP7) {
if ((p == SYS_WKUP7)
#ifdef PWR_WAKEUP_PIN7_1
|| (p == SYS_WKUP7_1)
#endif
#ifdef PWR_WAKEUP_PIN7_2
|| (p == SYS_WKUP7_2)
#endif
) {
wkup_pin = PWR_WAKEUP_PIN7;
}
#endif /* PWR_WAKEUP_PIN7 */
#ifdef PWR_WAKEUP_PIN8
if (p == SYS_WKUP8) {
if ((p == SYS_WKUP8)
#ifdef PWR_WAKEUP_PIN8_1
|| (p == SYS_WKUP8_1)
#endif
#ifdef PWR_WAKEUP_PIN8_2
|| (p == SYS_WKUP8_2)
#endif
) {
wkup_pin = PWR_WAKEUP_PIN8;
}
#endif /* PWR_WAKEUP_PIN8 */
Expand Down Expand Up @@ -191,7 +258,7 @@ void LowPower_stop(serial_t *obj)
{
__disable_irq();

#if defined(UART_IT_WUF) && defined(HAL_UART_MODULE_ENABLED) && !defined(HAL_UART_MODULE_ONLY)
#if defined(UART_WKUP_SUPPORT)
if (WakeUpUart != NULL) {
HAL_UARTEx_EnableStopMode(WakeUpUart);
}
Expand All @@ -201,6 +268,10 @@ void LowPower_stop(serial_t *obj)
/* Enable Ultra low power mode */
HAL_PWREx_EnableUltraLowPower();
#endif
#if defined(PWR_CR1_ULPMEN) || defined(PWR_CR3_ULPMEN)
/* Enable Ultra low power mode */
HAL_PWREx_EnableUltraLowPowerMode();
#endif
#if defined(PWR_CR_FWU)
/* Enable the fast wake up from Ultra low power mode */
HAL_PWREx_EnableFastWakeUp();
Expand All @@ -215,10 +286,15 @@ void LowPower_stop(serial_t *obj)
#endif

/* Enter Stop mode */
#if defined(PWR_CPUCR_RETDS_CD) || defined(PWR_CR1_LPMS_STOP2) ||\
defined(PWR_LOWPOWERMODE_STOP2)

if ((WakeUpUart == NULL) || (WakeUpUart->Instance == (USART_TypeDef *)LPUART1_BASE)) {
#if defined(UART_WKUP_SUPPORT) && (defined(PWR_CPUCR_RETDS_CD) \
|| defined(PWR_CR1_LPMS_STOP2) || defined(PWR_LOWPOWERMODE_STOP2) \
|| defined(LL_PWR_STOP2_MODE))
if ((WakeUpUart == NULL)
|| (WakeUpUart->Instance == (USART_TypeDef *)LPUART1_BASE)
#ifdef LPUART2_BASE
|| (WakeUpUart->Instance == (USART_TypeDef *)LPUART2_BASE)
#endif
) {
// STM32L4xx supports STOP2 mode which halves consumption
HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);
} else
Expand All @@ -229,7 +305,7 @@ void LowPower_stop(serial_t *obj)

/* Exit Stop mode reset clocks */
SystemClock_ConfigFromStop();
#if defined(UART_IT_WUF) && defined(HAL_UART_MODULE_ENABLED) && !defined(HAL_UART_MODULE_ONLY)
#if defined(UART_WKUP_SUPPORT)
if (WakeUpUart != NULL) {
/* In case of WakeUp from UART, reset its clock source to HSI */
uart_config_lowpower(obj);
Expand Down Expand Up @@ -277,7 +353,7 @@ void LowPower_standby()
void LowPower_shutdown()
{
__disable_irq();
#if defined(PWR_LOWPOWERMODE_SHUTDOWN) || defined(PWR_CR1_LPMS_SHUTDOWN)
#if defined(PWR_CR1_LPMS)
/* LSE must be on to use shutdown mode */
if (__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == SET) {
HAL_PWREx_EnterSHUTDOWNMode();
Expand All @@ -299,7 +375,8 @@ void LowPower_shutdown()
*/
void LowPower_EnableWakeUpUart(serial_t *serial, void (*FuncPtr)(void))
{
#if defined(UART_IT_WUF) && defined(HAL_UART_MODULE_ENABLED) && !defined(HAL_UART_MODULE_ONLY)
#if defined(UART_WKUP_SUPPORT)
#ifdef IS_UART_WAKEUP_SELECTION
UART_WakeUpTypeDef WakeUpSelection;
if (serial == NULL) {
return;
Expand All @@ -318,9 +395,11 @@ void LowPower_EnableWakeUpUart(serial_t *serial, void (*FuncPtr)(void))
*/
WakeUpSelection.WakeUpEvent = UART_WAKEUP_ON_READDATA_NONEMPTY;
HAL_UARTEx_StopModeWakeUpSourceConfig(WakeUpUart, WakeUpSelection);

#endif
#if defined(UART_IT_WUF)
/* Enable the UART Wake UP from STOPx mode Interrupt */
__HAL_UART_ENABLE_IT(WakeUpUart, UART_IT_WUF);
#endif
#else
UNUSED(serial);
#endif
Expand Down