void HAL_Core_Enter_Stop_Mode(uint16_t wakeUpPin, uint16_t edgeTriggerMode)
{
if ((wakeUpPin < TOTAL_PINS) && (edgeTriggerMode <= FALLING))
{
PinMode wakeUpPinMode = INPUT;
/* Set required pinMode based on edgeTriggerMode */
switch(edgeTriggerMode)
{
case CHANGE:
wakeUpPinMode = INPUT;
break;
case RISING:
wakeUpPinMode = INPUT_PULLDOWN;
break;
case FALLING:
wakeUpPinMode = INPUT_PULLUP;
break;
}
HAL_Pin_Mode(wakeUpPin, wakeUpPinMode);
/* Configure EXTI Interrupt : wake-up from stop mode using pin interrupt */
HAL_Interrupts_Attach(wakeUpPin, NULL, NULL, edgeTriggerMode, NULL);
HAL_Core_Execute_Stop_Mode();
/* Detach the Interrupt pin */
HAL_Interrupts_Detach(wakeUpPin);
}
}
bool attachInterrupt(uint16_t pin, raw_interrupt_handler_t handler, InterruptMode mode, int8_t priority, uint8_t subpriority)
{
#if Wiring_Cellular == 1
/* safety check that prevents users from attaching an interrupt to D7
* which is shared with BATT_INT_PC13 for power management */
if (pin == D7) return false;
#endif
HAL_Interrupts_Detach(pin);
HAL_InterruptExtraConfiguration extra = {0};
HAL_Interrupts_Attach(pin, call_raw_interrupt_handler, (void*)handler, mode, configure_interrupt(extra, priority, subpriority));
return true;
}
bool attachInterrupt(uint16_t pin, wiring_interrupt_handler_t fn, InterruptMode mode, int8_t priority, uint8_t subpriority)
{
#if Wiring_Cellular == 1
/* safety check that prevents users from attaching an interrupt to D7
* which is shared with BATT_INT_PC13 for power management */
if (pin == D7) return false;
#endif
HAL_Interrupts_Detach(pin);
wiring_interrupt_handler_t* handler = allocate_handler(pin, fn);
if (handler) {
HAL_InterruptExtraConfiguration extra = {0};
HAL_Interrupts_Attach(pin, call_wiring_interrupt_handler, handler, mode, configure_interrupt(extra, priority, subpriority));
}
return handler!=NULL;
}
void BUTTON_EXTI_Config(Button_TypeDef button, FunctionalState NewState) {
HAL_InterruptExtraConfiguration config = {0};
config.version = HAL_INTERRUPT_EXTRA_CONFIGURATION_VERSION;
config.keepHandler = false;
config.flags = HAL_DIRECT_INTERRUPT_FLAG_NONE;
if (NewState == ENABLE) {
HAL_Interrupts_Attach(HAL_Buttons[button].pin,
BUTTON_Interrupt_Handler,
(void *)((int)button),
HAL_Buttons[button].interrupt_mode,
&config);
} else {
HAL_Interrupts_Detach(HAL_Buttons[button].pin);
}
}
void HAL_SPI_Begin_Ext(HAL_SPI_Interface spi, SPI_Mode mode, uint16_t pin, void* reserved)
{
if (pin == SPI_DEFAULT_SS)
pin = spiMap[spi].SPI_SS_Pin;
spiState[spi].SPI_SS_Pin = pin;
STM32_Pin_Info* PIN_MAP = HAL_Pin_Map();
spiState[spi].mode = mode;
/* Enable SPI Clock */
*spiMap[spi].SPI_RCC_APBRegister |= spiMap[spi].SPI_RCC_APBClockEnable;
*spiMap[spi].SPI_RCC_AHBRegister |= spiMap[spi].SPI_RCC_AHBClockEnable;
/* Connect SPI pins to AF */
GPIO_PinAFConfig(PIN_MAP[spiMap[spi].SPI_SCK_Pin].gpio_peripheral, PIN_MAP[spiMap[spi].SPI_SCK_Pin].gpio_pin_source, spiMap[spi].SPI_AF_Mapping);
GPIO_PinAFConfig(PIN_MAP[spiMap[spi].SPI_MISO_Pin].gpio_peripheral, PIN_MAP[spiMap[spi].SPI_MISO_Pin].gpio_pin_source, spiMap[spi].SPI_AF_Mapping);
GPIO_PinAFConfig(PIN_MAP[spiMap[spi].SPI_MOSI_Pin].gpio_peripheral, PIN_MAP[spiMap[spi].SPI_MOSI_Pin].gpio_pin_source, spiMap[spi].SPI_AF_Mapping);
HAL_Pin_Mode(spiMap[spi].SPI_SCK_Pin, AF_OUTPUT_PUSHPULL);
HAL_Pin_Mode(spiMap[spi].SPI_MISO_Pin, AF_OUTPUT_PUSHPULL);
HAL_Pin_Mode(spiMap[spi].SPI_MOSI_Pin, AF_OUTPUT_PUSHPULL);
if (mode == SPI_MODE_MASTER)
{
HAL_Pin_Mode(pin, OUTPUT);
HAL_GPIO_Write(pin, Bit_SET);//HIGH
}
else
{
HAL_Pin_Mode(pin, INPUT);
}
/* SPI configuration */
spiState[spi].SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
spiState[spi].SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
spiState[spi].SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
if(spiState[spi].SPI_Data_Mode_Set != true)
{
//Default: SPI_MODE3
spiState[spi].SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
spiState[spi].SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
}
spiState[spi].SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
if(spiState[spi].SPI_Clock_Divider_Set != true)
{
/* Defaults to 15Mbit/s on SPI1, SPI2 and SPI3 */
if(spi == HAL_SPI_INTERFACE1)
{
spiState[spi].SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;//60/4=15
}
else
{
spiState[spi].SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;//30/2=15
}
}
if(spiState[spi].SPI_Bit_Order_Set != true)
{
//Default: MSBFIRST
spiState[spi].SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
}
spiState[spi].SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(spiMap[spi].SPI_Peripheral, &spiState[spi].SPI_InitStructure);
if (mode == SPI_MODE_SLAVE)
{
/* Attach interrupt to slave select pin */
HAL_InterruptExtraConfiguration irqConf = {0};
irqConf.size = sizeof(irqConf);
irqConf.IRQChannelPreemptionPriority = 1;
irqConf.IRQChannelSubPriority = 0;
HAL_Interrupts_Attach(pin, &HAL_SPI_SS_Handler, (void*)(spi), CHANGE, &irqConf);
/* Switch to slave mode */
spiState[spi].SPI_InitStructure.SPI_Mode = SPI_Mode_Slave;
SPI_Init(spiMap[spi].SPI_Peripheral, &spiState[spi].SPI_InitStructure);
}
if (mode == SPI_MODE_MASTER)
{
/* SPI peripheral should not be enabled in Slave mode until the device is selected */
SPI_Cmd(spiMap[spi].SPI_Peripheral, ENABLE);
}
spiState[spi].SPI_Enabled = true;
}
void HAL_Core_Execute_Stop_Mode(void)
{
int32_t state = HAL_disable_irq();
if((BKP_ReadBackupRegister(BKP_DR9) >> 12) == 0xA)
{
uint16_t wakeUpPin = BKP_ReadBackupRegister(BKP_DR9) & 0xFF;
InterruptMode edgeTriggerMode = (InterruptMode)((BKP_ReadBackupRegister(BKP_DR9) >> 8) & 0x0F);
/* Clear Stop mode system flag */
BKP_WriteBackupRegister(BKP_DR9, 0xFFFF);
if ((wakeUpPin < TOTAL_PINS) && (edgeTriggerMode <= FALLING))
{
PinMode wakeUpPinMode = INPUT;
/* Set required pinMode based on edgeTriggerMode */
switch(edgeTriggerMode)
{
case CHANGE:
wakeUpPinMode = INPUT;
break;
case RISING:
wakeUpPinMode = INPUT_PULLDOWN;
break;
case FALLING:
wakeUpPinMode = INPUT_PULLUP;
break;
}
HAL_Pin_Mode(wakeUpPin, wakeUpPinMode);
/* Configure EXTI Interrupt : wake-up from stop mode using pin interrupt */
HAL_Interrupts_Attach(wakeUpPin, NULL, NULL, edgeTriggerMode, NULL);
/* Request to enter STOP mode with regulator in low power mode */
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
/* Detach the Interrupt pin */
HAL_Interrupts_Detach(wakeUpPin);
/* Disable RTC Alarm */
HAL_RTC_Cancel_UnixAlarm();
/* At this stage the system has resumed from STOP mode */
/* Enable HSE, PLL and select PLL as system clock source after wake-up from STOP */
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
if(RCC_WaitForHSEStartUp() != SUCCESS)
{
/* If HSE startup fails try to recover by system reset */
NVIC_SystemReset();
}
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08);
}
}
HAL_enable_irq(state);
}
