void systemInit(void)
{
// Configure NVIC preempt/priority groups
NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
#ifdef STM32F10X
// Turn on clocks for stuff we use
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
#endif
// cache RCC->CSR value to use it in isMPUSoftreset() and others
cachedRccCsrValue = RCC->CSR;
RCC_ClearFlag();
enableGPIOPowerUsageAndNoiseReductions();
#ifdef STM32F10X
// Turn off JTAG port 'cause we're using the GPIO for leds
#define AFIO_MAPR_SWJ_CFG_NO_JTAG_SW (0x2 << 24)
AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_NO_JTAG_SW;
#endif
// Init cycle counter
cycleCounterInit();
memset(&exti15_10_handlers, 0x00, sizeof(exti15_10_handlers));
// SysTick
SysTick_Config(SystemCoreClock / 1000);
}
bool platform_watchdog_check_last_reset( void )
{
boot_reason=0;
if(RCC_GetFlagStatus(RCC_FLAG_SFTRST))
{//Software Reset
boot_reason=BOOT_REASON_SOFT_RST;
}
else if(RCC_GetFlagStatus(RCC_FLAG_IWDGRST))
{
boot_reason=BOOT_REASON_WDG_RST;
}
else if(RCC_GetFlagStatus(RCC_FLAG_WWDGRST))
{
boot_reason=BOOT_REASON_WWDG_RST;
}
else if(RCC_GetFlagStatus(RCC_FLAG_LPWRRST))
{
boot_reason=BOOT_REASON_LOWPWR_RST;
}
else if(RCC_GetFlagStatus(RCC_FLAG_BORRST))
{
boot_reason=BOOT_REASON_BOR_RST;
}
else if(RCC_GetFlagStatus(RCC_FLAG_PORRST))
{//Power-On-Reset
boot_reason=BOOT_REASON_PWRON_RST;
}
else if(RCC_GetFlagStatus(RCC_FLAG_PINRST))
{//Always set, test other cases first
boot_reason=BOOT_REASON_EXPIN_RST;
}
//cli_printf("boot_reason:%d\r\n",boot_reason);
RCC_ClearFlag();
return true;
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f10x_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f10x.c file
*/
/* Initialize LED1 and Key Button mounted on STM3210X-EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_EXTI);
/* Check if the system has resumed from WWDG reset */
if (RCC_GetFlagStatus(RCC_FLAG_WWDGRST) != RESET)
{
/* WWDGRST flag set */
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
/* Clear reset flags */
RCC_ClearFlag();
}
else
{
/* WWDGRST flag is not set */
/* Turn off LED1 */
STM_EVAL_LEDOff(LED1);
}
/* NVIC configuration */
NVIC_Configuration();
/* WWDG configuration */
/* Enable WWDG clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_WWDG, ENABLE);
/* On Value line devices, WWDG clock counter = (PCLK1 (24MHz)/4096)/8 = 732 Hz (~1366 æs) */
/* On other devices, WWDG clock counter = (PCLK1(36MHz)/4096)/8 = 1099 Hz (~910 æs) */
WWDG_SetPrescaler(WWDG_Prescaler_8);
/* Set Window value to 65 */
WWDG_SetWindowValue(65);
/* On Value line devices, Enable WWDG and set counter value to 127, WWDG timeout = ~1366 æs * 64 = 87.42 ms */
/* On other devices, Enable WWDG and set counter value to 127, WWDG timeout = ~910 æs * 64 = 58.25 ms */
WWDG_Enable(127);
/* Clear EWI flag */
WWDG_ClearFlag();
/* Enable EW interrupt */
WWDG_EnableIT();
while (1)
{
}
}
void systemInit(void)
{
#ifdef CC3D
/* Accounts for OP Bootloader, set the Vector Table base address as specified in .ld file */
extern void *isr_vector_table_base;
NVIC_SetVectorTable((uint32_t)&isr_vector_table_base, 0x0);
#endif
// Configure NVIC preempt/priority groups
NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
#ifdef STM32F10X
// Turn on clocks for stuff we use
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
#endif
RCC_ClearFlag();
enableGPIOPowerUsageAndNoiseReductions();
#ifdef STM32F10X
// Turn off JTAG port 'cause we're using the GPIO for leds
#define AFIO_MAPR_SWJ_CFG_NO_JTAG_SW (0x2 << 24)
AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_NO_JTAG_SW;
#endif
// Init cycle counter
cycleCounterInit();
// SysTick
SysTick_Config(SystemCoreClock / 1000);
}
void systemInit(void)
{
checkForBootLoaderRequest();
SetSysClock();
// Configure NVIC preempt/priority groups
NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
// cache RCC->CSR value to use it in isMPUSoftreset() and others
cachedRccCsrValue = RCC->CSR;
/* Accounts for OP Bootloader, set the Vector Table base address as specified in .ld file */
extern void *isr_vector_table_base;
NVIC_SetVectorTable((uint32_t)&isr_vector_table_base, 0x0);
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_OTG_FS, DISABLE);
RCC_ClearFlag();
enableGPIOPowerUsageAndNoiseReductions();
// Init cycle counter
cycleCounterInit();
memset(extiHandlerConfigs, 0x00, sizeof(extiHandlerConfigs));
// SysTick
SysTick_Config(SystemCoreClock / 1000);
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f10x_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f10x.c file
*/
/* Initialize Leds mounted on STM3210X-EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* Enable PWR and BKP clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
/* Enable write access to Backup domain */
PWR_BackupAccessCmd(ENABLE);
/* Clear Tamper pin Event(TE) pending flag */
BKP_ClearFlag();
/* Check if the Power On Reset flag is set */
if(RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
/* Clear reset flags */
RCC_ClearFlag();
/* Turn on LED3 */
STM_EVAL_LEDOn(LED3);
/* Check if Backup data registers are programmed */
if(CheckBackupReg(0x3210) == 0x00)
{ /* Backup data registers values are correct */
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
}
else
{ /* Backup data registers values are not correct or they are not yet
programmed (when the first time the program is executed) */
/* Write data to Backup data registers */
WriteToBackupReg(0x3210);
/* Turn on LED2 */
STM_EVAL_LEDOn(LED2);
}
}
/* Turn on LED4 */
STM_EVAL_LEDOn(LED4);
while (1)
{
}
}
/*******************************************************************************
* Function Name : main
* Description : Main program.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif
/* System Clocks Configuration */
RCC_Configuration();
/* NVIC configuration */
NVIC_Configuration();
/* GPIO configuration */
GPIO_Configuration();
/* Enable PWR and BKP clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
/* Enable write access to Backup domain */
PWR_BackupAccessCmd(ENABLE);
/* Clear Tamper pin Event(TE) pending flag */
BKP_ClearFlag();
/* Check if the Power On Reset flag is set */
if(RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
/* Clear reset flags */
RCC_ClearFlag();
/* Turn on led connected to GPIO_LED Pin8 */
GPIO_SetBits(GPIO_LED, GPIO_Pin_8);
/* Check if Backup data registers are programmed */
if(CheckBackupReg(0x3210) == 0x00)
{ /* Backup data registers values are correct */
/* Turn on led connected to GPIO_LED Pin6 */
GPIO_SetBits(GPIO_LED, GPIO_Pin_6);
}
else
{ /* Backup data registers values are not correct or they are not yet
programmed (when the first time the program is executed) */
/* Write data to Backup data registers */
WriteToBackupReg(0x3210);
/* Turn on led connected to GPIO_LED Pin7 */
GPIO_SetBits(GPIO_LED, GPIO_Pin_7);
}
}
/* Turn on led connected to GPIO_LED Pin9 */
GPIO_SetBits(GPIO_LED, GPIO_Pin_9);
while (1)
{
}
}
void systemInit(bool overclock)
{
#ifdef STM32F303xC
// start fpu
SCB->CPACR = (0x3 << (10*2)) | (0x3 << (11*2));
#endif
#ifdef STM32F303xC
SetSysClock();
#endif
#ifdef STM32F10X_MD
// Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers
// Configure the Flash Latency cycles and enable prefetch buffer
SetSysClock(overclock);
#endif
// Configure NVIC preempt/priority groups
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
#ifdef STM32F10X_MD
// Turn on clocks for stuff we use
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
#endif
RCC_ClearFlag();
enableGPIOPowerUsageAndNoiseReductions();
#ifdef STM32F10X_MD
// Turn off JTAG port 'cause we're using the GPIO for leds
#define AFIO_MAPR_SWJ_CFG_NO_JTAG_SW (0x2 << 24)
AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_NO_JTAG_SW;
#endif
ledInit();
beeperInit();
// Init cycle counter
cycleCounterInit();
// SysTick
SysTick_Config(SystemCoreClock / 1000);
#ifdef CC3D
spiInit(SPI1);
spiInit(SPI2);
#endif
#ifndef CC3D
// Configure the rest of the stuff
i2cInit(I2C2);
#endif
// sleep for 100ms
delay(100);
}
/**
* @file RTC_Init
* @brief RTC Initialization
* @param 无
* @retval 无
*/
void RTC_Init(void)
{
if (BKP_ReadBackupRegister(BKP_DR1)!= 0xA5A5)
{
/* Backup data register value is not correct or not yet programmed (when
the first time the program is executed) */
printf("RTC not yet configured....\r\n");
/* RTC Configuration */
RTC_Configuration();
Time_Regulate();
/* Adjust time by values entred by the user on the hyperterminal */
printf("RTC configured....\r\n");
BKP_WriteBackupRegister(BKP_DR1, 0xA5A5);
}
else
{
/* Check if the Power On Reset flag is set */
if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
printf("Power On Reset occurred....\r\n");
}
/* Check if the Pin Reset flag is set */
else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
{
printf("External Reset occurred....\r\n");
}
printf("No need to configure RTC....\r\n");
/* Wait for RTC registers synchronization */
RTC_WaitForSynchro();
/* Enable the RTC Second */
RTC_ITConfig(RTC_IT_SEC, ENABLE);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
}
/* NVIC configuration */
NVIC_Configuration();
#ifdef RTCClockOutput_Enable
/* Enable PWR and BKP clocks */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
/* Allow access to BKP Domain */
PWR_BackupAccessCmd(ENABLE);
/* Disable the Tamper Pin */
BKP_TamperPinCmd(DISABLE); /* To output RTCCLK/64 on Tamper pin, the tamper
functionality must be disabled */
/* Enable RTC Clock Output on Tamper Pin */
BKP_RTCOutputConfig(BKP_RTCOutputSource_CalibClock);
#endif
/* Clear reset flags */
RCC_ClearFlag();
return;
}
void checkResetType()
{
uint32_t rst = RCC->CSR;
evrPush(( rst & (RCC_CSR_PORRSTF | RCC_CSR_PADRSTF | RCC_CSR_SFTRSTF) ) ? EVR_NormalReset : EVR_AbnormalReset , rst >> 24 );
RCC_ClearFlag();
}
void HAL_Core_Init(void)
{
if (HAL_Feature_Get(FEATURE_RESET_INFO))
{
// Clear RCC reset flags
RCC_ClearFlag();
}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/* Setup the microcontroller system. Initialize the Embedded Flash Interface,
initialize the PLL and update the SystemFrequency variable. */
SystemInit();
/* Initialize Leds mounted on STM3210X-EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* Enable PWR and BKP clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
/* Enable write access to Backup domain */
PWR_BackupAccessCmd(ENABLE);
/* Clear Tamper pin Event(TE) pending flag */
BKP_ClearFlag();
/* Check if the Power On Reset flag is set */
if(RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
/* Clear reset flags */
RCC_ClearFlag();
/* Turn on LED3 */
STM_EVAL_LEDOn(LED3);
/* Check if Backup data registers are programmed */
if(CheckBackupReg(0x3210) == 0x00)
{ /* Backup data registers values are correct */
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
}
else
{ /* Backup data registers values are not correct or they are not yet
programmed (when the first time the program is executed) */
/* Write data to Backup data registers */
WriteToBackupReg(0x3210);
/* Turn on LED2 */
STM_EVAL_LEDOn(LED2);
}
}
/* Turn on LED4 */
STM_EVAL_LEDOn(LED4);
while (1)
{
}
}
void systemInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
uint8_t i;
gpio_config_t gpio_cfg[] = {
{ LED0_GPIO, LED0_PIN, GPIO_Mode_Out_PP }, // PB3 (LED)
{ LED1_GPIO, LED1_PIN, GPIO_Mode_Out_PP }, // PB4 (LED)
#ifndef FY90Q
{ BEEP_GPIO, BEEP_PIN, GPIO_Mode_Out_OD }, // PA12 (Buzzer)
#endif
};
uint8_t gpio_count = sizeof(gpio_cfg) / sizeof(gpio_cfg[0]);
// Turn on clocks for stuff we use
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM3 | RCC_APB1Periph_TIM4 | RCC_APB1Periph_I2C2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC | RCC_APB2Periph_TIM1 | RCC_APB2Periph_ADC1 | RCC_APB2Periph_USART1, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
RCC_ClearFlag();
// Make all GPIO in by default to save power and reduce noise
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_Init(GPIOC, &GPIO_InitStructure);
// Turn off JTAG port 'cause we're using the GPIO for leds
GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);
// Configure gpio
for (i = 0; i < gpio_count; i++) {
GPIO_InitStructure.GPIO_Pin = gpio_cfg[i].pin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = gpio_cfg[i].mode;
GPIO_Init(gpio_cfg[i].gpio, &GPIO_InitStructure);
}
LED0_OFF;
LED1_OFF;
BEEP_OFF;
// Init cycle counter
cycleCounterInit();
// SysTick
SysTick_Config(SystemCoreClock / 1000);
// Configure the rest of the stuff
adcInit();
#ifndef FY90Q
i2cInit(I2C2);
#endif
// sleep for 100ms
delay(100);
}
/*******************************************************************************
* Function Name : main
* Description : Main program.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif
/* System Clocks Configuration */
RCC_Configuration();
/* GPIO configuration */
GPIO_Configuration();
/* Check if the system has resumed from WWDG reset */
if (RCC_GetFlagStatus(RCC_FLAG_WWDGRST) != RESET)
{ /* WWDGRST flag set */
/* Set GPIO_LED pin 6 */
GPIO_SetBits(GPIO_LED, GPIO_Pin_6);
/* Clear reset flags */
RCC_ClearFlag();
}
else
{ /* WWDGRST flag is not set */
/* Reset GPIO_LED pin 6 */
GPIO_ResetBits(GPIO_LED, GPIO_Pin_6);
}
/* Configure Key Button EXTI Line to generate an interrupt on falling edge */
EXTI_Configuration();
/* NVIC configuration */
NVIC_Configuration();
/* WWDG configuration */
/* Enable WWDG clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_WWDG, ENABLE);
/* WWDG clock counter = (PCLK1/4096)/8 = 244 Hz (~4 ms) */
WWDG_SetPrescaler(WWDG_Prescaler_8);
/* Set Window value to 65 */
WWDG_SetWindowValue(65);
/* Enable WWDG and set counter value to 127, WWDG timeout = ~4 ms * 64 = 262 ms */
WWDG_Enable(127);
/* Clear EWI flag */
WWDG_ClearFlag();
/* Enable EW interrupt */
WWDG_EnableIT();
while (1)
{}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/* Setup the microcontroller system. Initialize the Embedded Flash Interface,
initialize the PLL and update the SystemFrequency variable. */
SystemInit();
/* Initialize LED1 and Key Button mounted on STM3210X-EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_PBInit(Button_KEY, Mode_EXTI);
/* Check if the system has resumed from WWDG reset */
if (RCC_GetFlagStatus(RCC_FLAG_WWDGRST) != RESET)
{
/* WWDGRST flag set */
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
/* Clear reset flags */
RCC_ClearFlag();
}
else
{
/* WWDGRST flag is not set */
/* Turn off LED1 */
STM_EVAL_LEDOff(LED1);
}
/* NVIC configuration */
NVIC_Configuration();
/* WWDG configuration */
/* Enable WWDG clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_WWDG, ENABLE);
/* WWDG clock counter = (PCLK1/4096)/8 = 1099 Hz (~910 µs) */
WWDG_SetPrescaler(WWDG_Prescaler_8);
/* Set Window value to 65 */
WWDG_SetWindowValue(65);
/* Enable WWDG and set counter value to 127, WWDG timeout = ~910 µs * 64 = 58.25 ms */
WWDG_Enable(127);
/* Clear EWI flag */
WWDG_ClearFlag();
/* Enable EW interrupt */
WWDG_EnableIT();
while (1)
{
}
}
void systemInit(void)
{
#ifdef CC3D
/* Accounts for OP Bootloader, set the Vector Table base address as specified in .ld file */
extern void *isr_vector_table_base;
NVIC_SetVectorTable((uint32_t)&isr_vector_table_base, 0x0);
#endif
// Configure NVIC preempt/priority groups
NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
#ifdef STM32F10X
// Turn on clocks for stuff we use
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
#endif
// cache RCC->CSR value to use it in isMPUSoftreset() and others
cachedRccCsrValue = RCC->CSR;
#ifdef STM32F40_41xxx
/* Accounts for OP Bootloader, set the Vector Table base address as specified in .ld file */
extern void *isr_vector_table_base;
NVIC_SetVectorTable((uint32_t)&isr_vector_table_base, 0x0);
RCC_AHB2PeriphClockCmd( RCC_AHB2Periph_OTG_FS, DISABLE);
#endif
RCC_ClearFlag();
enableGPIOPowerUsageAndNoiseReductions();
#ifdef STM32F10X
// Set USART1 TX (PA9) to output and high state to prevent a rs232 break condition on reset.
// See issue https://github.com/cleanflight/cleanflight/issues/1433
gpio_config_t gpio;
gpio.mode = Mode_Out_PP;
gpio.speed = Speed_2MHz;
gpio.pin = Pin_9;
digitalHi(GPIOA, gpio.pin);
gpioInit(GPIOA, &gpio);
// Turn off JTAG port 'cause we're using the GPIO for leds
#define AFIO_MAPR_SWJ_CFG_NO_JTAG_SW (0x2 << 24)
AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_NO_JTAG_SW;
#endif
// Init cycle counter
cycleCounterInit();
memset(extiHandlerConfigs, 0x00, sizeof(extiHandlerConfigs));
// SysTick
SysTick_Config(SystemCoreClock / 1000);
}
void rccConfiguration(void) {
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOC | RCC_AHB1Periph_GPIOD | RCC_AHB1Periph_GPIOE |
RCC_AHB1Periph_GPIOF | RCC_AHB1Periph_GPIOG | RCC_AHB1Periph_GPIOH,
ENABLE);
GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_Init(GPIOE, &GPIO_InitStructure);
// exclude PA13 & PA14 for SWD
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All & ~(GPIO_Pin_13 | GPIO_Pin_14);
GPIO_Init(GPIOA, &GPIO_InitStructure);
#ifdef RCC_EN1_PORT
en1 = digitalInit(RCC_EN1_PORT, RCC_EN1_PIN, 1);
#endif
#ifdef RCC_EN2_PORT
en2 = digitalInit(RCC_EN2_PORT, RCC_EN2_PIN, 0);
#endif
#ifdef RCC_SYSOFF_PORT
sysoff = digitalInit(RCC_SYSOFF_PORT, RCC_SYSOFF_PIN, 0);
#endif
#ifdef RCC_STEPUP_EN_PORT
stepupEn = digitalInit(RCC_STEPUP_EN_PORT, RCC_STEPUP_EN_PIN, 1);
#endif
#ifdef RCC_SYNC_PORT
sync = digitalInit(RCC_SYNC_PORT, RCC_SYNC_PIN, 1);
#endif
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1 | RCC_AHB1Periph_DMA2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
// enable timer clocks
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM3 | RCC_APB1Periph_TIM4 | RCC_APB1Periph_TIM7, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_TIM8 | RCC_APB2Periph_TIM9 | RCC_APB2Periph_TIM10 | RCC_APB2Periph_TIM11,
ENABLE);
SYSCFG_CompensationCellCmd(ENABLE);
// Clear reset flags
RCC_ClearFlag();
RCC_GetClocksFreq(&rccClocks);
pwmZeroTimers();
}
static int read_flags(enum rcc_flag flag) {
if (flags || STATUS_FLAG == flag)
return flags & 1 << STATUS_FLAG;
flags |= 1 << STATUS_FLAG;
flags |= RCC_GetFlagStatus(RCC_FLAG_IWDGRST) << WATCHDOG_FLAG;
flags |= RCC_GetFlagStatus(RCC_FLAG_PORRST) << POWERON_FLAG;
RCC_ClearFlag();
return read_flags(flag);
}
void RTC_Config(void)
{
/*后备寄存器1中，存了一个特殊字符0xA5A5
第一次上电或后备电源掉电后，该寄存器数据丢失，
表明RTC数据丢失，需要重新配置 */
if(BKP_ReadBackupRegister(BKP_DR1) != 0xA5A5) //检查是否第一次上电或后备电池已经掉电，
{
Write_Log("Backup VBAT PowerDown or First time PowerUp,Initialize RTC\r\n");
RTC_Configuration();
BKP_WriteBackupRegister(BKP_DR1, 0xA5A5);
time_now.tm_year = 2011;
time_now.tm_mon = 10; //月份表示为0~11
time_now.tm_mday = 13;
time_now.tm_hour = 13;
time_now.tm_min = 16;
time_now.tm_sec = 38;
Time_SetCalendarTime(time_now);//设置初始时间
}
else //若后备寄存器没有掉电，则无需重新配置RTC
{
Write_Log("Backup VBAT Keep, Don't RTC Configuralation\r\n");
//等待RTC与APB同步
RTC_WaitForSynchro();
RTC_WaitForLastTask();
//使能秒中断
RTC_ITConfig(RTC_IT_SEC, ENABLE);
RTC_WaitForLastTask();
}
//这里我们可以利用RCC_GetFlagStatus()函数查看本次复位类型
if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
por_rst_flag = 1;
Write_Log("PowerUp Reset\r\n");
}
else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
{
pin_rst_flag = 1;
Write_Log("pin Reset\r\n");
}
else if(PWR_GetFlagStatus(PWR_FLAG_WU)!= RESET) //wakeup唤醒
{
Write_Log("WakeUp...\r\n");
}
if(PWR_GetFlagStatus(PWR_FLAG_SB) != RESET) //检查是否由待机模式下唤醒，如是则不需要配置RTC
/* System resumed from STANDBY mode */
/* Clear StandBy flag */
PWR_ClearFlag(PWR_FLAG_SB);
//清除RCC中复位标志
RCC_ClearFlag();
return;
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f0xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f0xx.c file
*/
/* Initialize LEDs and Tamper Button mounted on EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_PBInit(BUTTON_TAMPER, BUTTON_MODE_EXTI);
/* Check if the system has resumed from WWDG reset */
if (RCC_GetFlagStatus(RCC_FLAG_WWDGRST) != RESET)
{
/* WWDGRST flag set */
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
/* Clear reset flags */
RCC_ClearFlag();
}
else
{
/* WWDGRST flag is not set */
/* Turn off LED1 */
STM_EVAL_LEDOff(LED1);
}
/* Setup SysTick Timer for 1 msec interrupts */
if (SysTick_Config(SystemCoreClock / 1000))
{
/* Capture error */
while (1)
{}
}
/* Configure WWDG */
WWDG_Config();
while (1)
{
/* Toggle LED2 */
STM_EVAL_LEDToggle(LED2);
/* Insert 33 ms delay */
Delay(33);
/* Update WWDG counter */
WWDG_SetCounter(127);
}
}
/*
*********************************************************************************************************
* 函 数 名: bsp_InitIwdg
* 功能说明: 独立看门狗时间配置函数
* 形 参：IWDGTime: 0 ---- 0x0FFF
* 独立看门狗时间设置,单位为ms,IWDGTime = 1000 大约就是一秒的
* 时间，这里没有结合TIM5测得实际LSI频率，只是为了操作方便取了
* 一个估计值超过IWDGTime不进行喂狗的话系统将会复位。
* LSI = 34000左右
* 返 回 值: 无
*********************************************************************************************************
*/
void bsp_iwdg_init(unsigned int IWDGTime)
{
/* 检测系统是否从独立看门狗复位中恢复 */
if (RCC_GetFlagStatus(RCC_FLAG_IWDGRST) != RESET)
{
/* 清除复位标志 */
RCC_ClearFlag();
}
else
{
/* 标志没有设置 */
}
#if 1
/* 通过TIM5输入捕获得到LSI频率 */
LsiFreq = GetLSIFrequency();
#else
/* 使能LSI */
RCC_LSICmd(ENABLE);
/* 等待直到LSI就绪 */
while (RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET)
{}
/* */
LsiFreq = 32000;
#endif
/* 写入0x5555表示允许访问IWDG_PR 和IWDG_RLR寄存器 */
IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
/* LSI/32 分频*/
IWDG_SetPrescaler(IWDG_Prescaler_256);
/*特别注意，由于这里_ulIWDGTime的最小单位是ms, 所以这里重装计数的
计数时 需要除以1000
Counter Reload Value = (IWDGTime / 1000) /(1 / IWDG counter clock period)
= (IWDGTime / 1000) / (32/LSI)
= (IWDGTime / 1000) / (32/LsiFreq)
= LsiFreq * IWDGTime / 32000
实际测试LsiFreq = 34000，所以这里取1的时候 大概就是1ms
*/
IWDG_SetReload(IWDGTime);
/* 重载IWDG计数 */
IWDG_ReloadCounter();
/* 使能 IWDG (LSI oscillator 由硬件使能) */
IWDG_Enable();
}
void systemInit(void) {
GPIO_InitTypeDef GPIO_InitStructure;
gpio_config_t gpio_cfg[] = {
{ LEDR_GPIO, LEDR_PIN, GPIO_Mode_Out_PP },
{ LEDG_GPIO, LEDG_PIN, GPIO_Mode_Out_PP },
};
uint8_t gpio_count = sizeof(gpio_cfg) / sizeof(gpio_cfg[0]);
uint32_t i;
// This is needed because some shit inside Keil startup f***s with SystemCoreClock, setting it back to 72MHz even on HSI.
SystemCoreClockUpdate();
// Turn on clocks for stuff we use
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM3 | RCC_APB1Periph_TIM4 | RCC_APB1Periph_I2C2 | RCC_APB1Periph_SPI2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC | RCC_APB2Periph_TIM1 | RCC_APB2Periph_ADC1 | RCC_APB2Periph_USART1, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
RCC_ClearFlag();
// Make all GPIO in by default to save power and reduce noise
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_Init(GPIOC, &GPIO_InitStructure);
// Turn off JTAG port 'cause we're using the GPIO for leds
GPIO_PinRemapConfig(GPIO_Remap_SWJ_Disable, ENABLE);
// Configure gpio
for (i = 0; i < gpio_count; i++) {
GPIO_InitStructure.GPIO_Pin = gpio_cfg[i].pin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = gpio_cfg[i].mode;
GPIO_Init(gpio_cfg[i].gpio, &GPIO_InitStructure);
}
LEDR_OFF
LEDG_OFF
// Init cycle counter
cycleCounterInit();
// SysTick
SysTick_Config(SystemCoreClock / 1000);
// Configure the rest of the stuff
i2cInit(I2C2);
// sleep for 100ms
delay(100);
}
/*
*********************************************************************************************************
* 函 数 名: bsp_InitWwdg
* 功能说明: 窗口看门狗配置
* 形 参：
* _ucTreg : T[6:0],计数器值 范围0x40 到 0x7F
* _ucWreg : W[6:0],窗口值 必须小于 0x80
* WWDG_Prescaler : 窗口看门狗分频 PCLK1 = 42MHz
* WWDG_Prescaler_1: WWDG counter clock = (PCLK1/4096)/1
* WWDG_Prescaler_2: WWDG counter clock = (PCLK1/4096)/2
* WWDG_Prescaler_4: WWDG counter clock = (PCLK1/4096)/4
* WWDG_Prescaler_8: WWDG counter clock = (PCLK1/4096)/8
* 返 回 值: 无
*********************************************************************************************************
*/
void bsp_InitWwdg(uint8_t _ucTreg, uint8_t _ucWreg, uint32_t WWDG_Prescaler)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* 检测系统是否从窗口看门狗复位中恢复 */
if (RCC_GetFlagStatus(RCC_FLAG_WWDGRST) != RESET)
{
/* 清除复位标志 */
RCC_ClearFlag();
}
else
{
/* WWDGRST 标志没有设置 */
}
/* 使能WWDG时钟 */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_WWDG, ENABLE);
/*
窗口看门狗分频设置：
比如选择WWDG_Prescaler_8
(PCLK1 (42MHz)/4096)/8 = 1281 Hz (~780 us)
*/
WWDG_SetPrescaler(WWDG_Prescaler);
/*
设置窗口值是_ucWreg，用户必须在小于_ucWreg且大于0x40时刷新计数
器，要不会造成系统复位。
*/
WWDG_SetWindowValue(_ucWreg);
/*
使能WWDG，设置计数器
比如设置_ucTreg=127 8分频时，那么溢出时间就是= ~780 us * 64 = 49.92 ms
窗口看门狗的刷新时间段是: ~780 * (127-80) = 36.6ms < 刷新窗口看门狗 < ~780 * 64 = 49.9ms
*/
WWDG_Enable(_ucTreg);
/* 清除EWI中断标志 */
WWDG_ClearFlag();
/* 使能EW中断 */
WWDG_EnableIT();
/* 设置 WWDG 的NVIC */
NVIC_InitStructure.NVIC_IRQChannel = WWDG_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
uint8_t TM_WATCHDOG_Init(TM_WATCHDOG_Timeout_t timeout) {
uint8_t result = 0;
// Check if the system has resumed from IWDG reset
if (RCC_GetFlagStatus(RCC_FLAG_IWDGRST) != RESET) {
// Reset by IWDG
result = 1;
// Clear reset flags
RCC_ClearFlag();
}
// Enable write access to IWDG_PR and IWDG_RLR registers
IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
// IWDG counter clock: LSI/32 = 1024Hz
IWDG_SetPrescaler(IWDG_Prescaler_32);
// Set counter reload value.
if (timeout == TM_WATCHDOG_Timeout_5ms) {
IWDG_SetReload(5);
} else if (timeout == TM_WATCHDOG_Timeout_10ms) {
IWDG_SetReload(10);
} else if (timeout == TM_WATCHDOG_Timeout_15ms) {
IWDG_SetReload(15);
} else if (timeout == TM_WATCHDOG_Timeout_30ms) {
IWDG_SetReload(31);
} else if (timeout == TM_WATCHDOG_Timeout_60ms) {
IWDG_SetReload(61);
} else if (timeout == TM_WATCHDOG_Timeout_120ms) {
IWDG_SetReload(123);
} else if (timeout == TM_WATCHDOG_Timeout_250ms) {
IWDG_SetReload(256);
} else if (timeout == TM_WATCHDOG_Timeout_500ms) {
IWDG_SetReload(512);
} else if (timeout == TM_WATCHDOG_Timeout_1s) {
IWDG_SetReload(1024);
} else if (timeout == TM_WATCHDOG_Timeout_2s) {
IWDG_SetReload(2048);
} else if (timeout == TM_WATCHDOG_Timeout_4s) {
IWDG_SetReload(4095);
}
// Reload IWDG counter
IWDG_ReloadCounter();
// Enable IWDG (the LSI oscillator will be enabled by hardware)
IWDG_Enable();
return result;
}
/*******************************************************************************
* 函 数 名:
* 功 能:
* 参 数：
* 返 回:
*******************************************************************************/
uint8_t RTC_Init(uint32_t pre_value, uint32_t alarm_value, uint32_t count_value)
{
uint8_t count;
NVIC_InitTypeDef NVIC_InitStructure;
//RTC全局中断
NVIC_InitStructure.NVIC_IRQChannel = RTC_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR , ENABLE);
PWR_BackupAccessCmd(ENABLE);
//设置外部低速晶振(LSE),使用外设低速晶振
RCC_LSEConfig(RCC_LSE_ON);
//检查指定的RCC标志位设置与否,等待低速晶振就绪
while (RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
{
count++;
Delayms(10);
}
if(count>=250)
return 1;
//设置RTC时钟(RTCCLK),选择LSE作为RTC时钟
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
RCC_RTCCLKCmd(ENABLE);
//等待最近一次对RTC寄存器的读操作完成
RTC_WaitForSynchro();
//等待最近一次对RTC寄存器的写操作完成
RTC_WaitForLastTask();
//设置报警时间
RTC_SetAlarm(alarm_value);
RTC_WaitForLastTask();
//配置中断
RTC_ITConfig( RTC_IT_SEC|RTC_IT_ALR|RTC_IT_OW, ENABLE);
RTC_WaitForLastTask();
//设置RTC预分频的值
RTC_SetPrescaler(pre_value);
RTC_WaitForLastTask();
//清除RCC的复位标志位
RCC_ClearFlag();
RTC_WaitForLastTask();
RTC_SetCounter(count_value);
RTC_WaitForLastTask();
return 0;
}
// IWDG: STM32 Independent Watchdog Initialization
void IWDG_Configureation(void)
{
//RCC_LSICmd(ENABLE); //open LSI
//while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET);
if(RCC_GetFlagStatus(RCC_FLAG_IWDGRST) != RESET)
{
RCC_ClearFlag();
}
IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
IWDG_SetPrescaler(IWDG_Prescaler_128); // 40Khz / 128 = 0.31KHz; 1 / 0.31KHz = 3.22ms
//IWDG_SetReload(1250); // 1s, max 0xfff
IWDG_SetReload(0xfff); // 4095 * 3.22ms = 13185.9ms = 13 seconds; it means if IWDG was not reloaded, MCU will reset!
//IWDG_ReloadCounter();
IWDG_Enable();
}
void cpu_device_reset(int bootloader)
{
struct app_handshake_block *handshake =
(struct app_handshake_block *)HANDSHAKE_ADDR;
/* Clear any reset flags that might be present (i.e. watchdog) */
RCC_ClearFlag();
/*
* If bootloader mode is requested, Set the flag in the
* handshake area
*/
if (bootloader == 1) {
handshake->loader_magic = LOADER_KEY;
}
NVIC_SystemReset();
}
void Platform_Init(void)
{
/*STM32 wakeup by watchdog in standby mode, re-enter standby mode in this situation*/
PlatformWDGReload();
if ( (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET) && RCC_GetFlagStatus(RCC_FLAG_IWDGRST) != RESET)
{
RCC_ClearFlag();
Platform_Enter_STANDBY();
}
PWR_ClearFlag(PWR_FLAG_SB);
mico_rtos_init_mutex(&printf_mutex);
Platform_Button_EL_Init();
Platform_Button_STANDBY_Init();
Platform_LED_SYS_Init();
Platform_LED_RF_Init();
Platform_Debug_UART_Init();
}
void systemInit(void)
{
checkForBootLoaderRequest();
// Enable FPU
SCB->CPACR = (0x3 << (10 * 2)) | (0x3 << (11 * 2));
// Configure NVIC preempt/priority groups
NVIC_PriorityGroupConfig(NVIC_PRIORITY_GROUPING);
// cache RCC->CSR value to use it in isMPUSoftreset() and others
cachedRccCsrValue = RCC->CSR;
RCC_ClearFlag();
enableGPIOPowerUsageAndNoiseReductions();
memset(extiHandlerConfigs, 0x00, sizeof(extiHandlerConfigs));
// Pre-setup SysTick and system time - final setup is done in systemClockSetup
systemTimekeepingSetup();
}
u8 getResetSource(void) {
u8 retval = 0;
if (RCC_GetFlagStatus(RCC_FLAG_PORRST) == SET)
retval = POWER_RESET;
else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) == SET)
retval = PIN_RESET;
else if (RCC_GetFlagStatus(RCC_FLAG_SFTRST) == SET)
retval = SOFT_RESET;
else if (RCC_GetFlagStatus(RCC_FLAG_IWDGRST) == SET)
retval = IWDG_RESET;
else if (RCC_GetFlagStatus(RCC_FLAG_WWDGRST) == SET)
retval = WWDG_RESET;
else if (RCC_GetFlagStatus(RCC_FLAG_LPWRRST) == SET)
retval = LOW_POWER_RESET;
RCC_ClearFlag();
return retval;
}
