void encoder_init(void){
//ECH_A PB6, ECH_B PB7
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB,ENABLE);
GPIO_InitTypeDef myGPIO;
GPIO_StructInit(&myGPIO);
myGPIO.GPIO_Mode=GPIO_Mode_IN;
myGPIO.GPIO_Pin=GPIO_Pin_6|GPIO_Pin_7;
myGPIO.GPIO_PuPd=GPIO_PuPd_UP;
GPIO_Init(GPIOB,&myGPIO);
RCC_APB2PeriphClockCmd(RCC_APB2ENR_SYSCFGEN,ENABLE);//Turn on SYSCFG since it's disabled by default
EXTI_InitTypeDef myEXTI;
EXTI_StructInit(&myEXTI);
myEXTI.EXTI_Line=EXTI_Line6|EXTI_Line7;
myEXTI.EXTI_LineCmd=ENABLE;
myEXTI.EXTI_Mode=EXTI_Mode_Interrupt;
myEXTI.EXTI_Trigger=EXTI_Trigger_Rising_Falling;
EXTI_Init(&myEXTI);
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOB,EXTI_PinSource6);//Reamp Line 6 to Port B
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOB,EXTI_PinSource7);//Reamp Line 7 to Port B
last_encoderA=GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_6);
last_encoderB=GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_7);
EXTI_ClearITPendingBit(EXTI_Line6);//Clear pening interrupts
EXTI_ClearITPendingBit(EXTI_Line7);//Clear pening interrupts
NVIC_EnableIRQ(EXTI4_15_IRQn);//Enable EXTI0 interrupts
}
/*******************************************************************************
* Function Name : IntExtOnOffConfig
* Description : Enables or disables EXTI for the menu navigation keys :
* EXTI lines 14, 15 and 13 which correpond respectively
* to "UP", "SEL" and "DOWN".
* Input : NewState: New state of the navigation keys. This parameter
* can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void IntExtOnOffConfig(FunctionalState NewState)
{
EXTI_InitTypeDef EXTI_InitStructure;
/* Initializes the EXTI_InitStructure */
EXTI_StructInit(&EXTI_InitStructure);
/* Disable the EXTI line 15, 8 and 7 on falling edge */
if(NewState == DISABLE)
{
EXTI_InitStructure.EXTI_Line = EXTI_Line15 | EXTI_Line8 | EXTI_Line7;
EXTI_InitStructure.EXTI_LineCmd = DISABLE;
EXTI_Init(&EXTI_InitStructure);
}
/* Enable the EXTI line 15, 8 and 7 on falling edge */
else
{
/* Clear the the EXTI line 15, 8 and 7 interrupt pending bit */
EXTI_ClearITPendingBit(EXTI_Line15 | EXTI_Line8 | EXTI_Line7);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Line = EXTI_Line15 | EXTI_Line8 | EXTI_Line7;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}
}
void button_init()
{
// Enable clock for SYSCFG */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
// Push Button 2 Port C Pin 13
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
// Tell system that you will use PC13 for EXTI_Line13
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOC, EXTI_PinSource13);
//Configure Button EXT1 line
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Line = EXTI_Line13;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
//Set Priority to the lowest
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x01;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x01;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void EINT_Config(void)
{
GPIO_StructInit(&GPIO_InitStructure1);
GPIO_InitStructure1.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure1.GPIO_Mode = GPIO_Mode_IPU;
GPIO_InitStructure1.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOG, &GPIO_InitStructure1);
//SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource0);
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Line = EXTI_Line0;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
NVIC_InitTypeDef NVIC_InitStructure1;
NVIC_InitStructure1.NVIC_IRQChannel = EXTI0_IRQn;
NVIC_InitStructure1.NVIC_IRQChannelPreemptionPriority = 0x01;
NVIC_InitStructure1.NVIC_IRQChannelSubPriority = 0x01;
NVIC_InitStructure1.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure1);
}
/**
* Configure EXTI callback
*/
void setupSwitchB(void (*f)()){
externalInterruptCallbackB = f;
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable the clocks */
RCC_AHB1PeriphClockCmd(SWITCH_B_CLOCK, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
/* Configure switch pin */
configureDigitalInput(SWITCH_B_PORT, SWITCH_B_PIN, GPIO_PuPd_UP);
/* Connect EXTI Line to GPIO Pin */
SYSCFG_EXTILineConfig(SWITCH_B_PORT_SOURCE, SWITCH_B_PIN_SOURCE);
/* Configure EXTI line */
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Line = SWITCH_B_PIN_LINE;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable and set EXTI Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = SWITCH_B_IRQ;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = SWITCH_B_PRIORITY;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = SWITCH_B_SUBPRIORITY;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void SENSOR_Init(Sensor_TypeDef SensorIndex, Sensor_Mode_TypeDef Sensor_Mode)
{
GPIO_InitTypeDef GPIO_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(SENSOR_GPIO_CLK[SensorIndex],ENABLE);
GPIO_InitStructure.GPIO_Pin=SENSOR_GPIO_PIN[SensorIndex];
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IPU;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(SENSOR_GPIO_PORT[SensorIndex],&GPIO_InitStructure);
if (Sensor_Mode==Mode_EXTI)
{
//
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
GPIO_EXTILineConfig(SENSOR_GPIO_PORT_SOURCE[SensorIndex], SENSOR_GPIO_PIN_SOURCE[SensorIndex]);
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Line=SENSOR_GPIO_EXTI_LINE[SensorIndex];
EXTI_InitStructure.EXTI_Mode=EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger=EXTI_Trigger_Rising;//EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd=ENABLE;
EXTI_Init(&EXTI_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel=SENSOR_GPIO_IRQn[SensorIndex];
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x0F;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x0F;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
}
int main(void) {
GPIO_InitTypeDef gpio;
EXTI_InitTypeDef exti;
NVIC_InitTypeDef nvic;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
GPIO_StructInit(&gpio);
gpio.GPIO_Pin = GPIO_Pin_5;
gpio.GPIO_Mode = GPIO_Mode_OUT;
gpio.GPIO_OType = GPIO_OType_PP;
GPIO_Init(GPIOA, &gpio);
gpio.GPIO_Pin = GPIO_Pin_13;
gpio.GPIO_Mode = GPIO_Mode_IN;
gpio.GPIO_PuPd = GPIO_PuPd_UP;
gpio.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_Init(GPIOC, &gpio);
GPIO_StructInit(&gpio);
gpio.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 |
GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7 |
GPIO_Pin_8 | GPIO_Pin_9;
gpio.GPIO_Mode = GPIO_Mode_OUT;
gpio.GPIO_OType = GPIO_OType_PP;
GPIO_Init(GPIOC, &gpio);
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOC, EXTI_PinSource13); //via DM00073522 faq file, onboard button as trigger
EXTI_StructInit(&exti);
exti.EXTI_Line = EXTI_Line13; //GPIO can use lines 0-15
exti.EXTI_Mode = EXTI_Mode_Interrupt;
exti.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
exti.EXTI_LineCmd = ENABLE;
EXTI_Init(&exti);
nvic.NVIC_IRQChannel = EXTI15_10_IRQn; //to be found in stm32f30x.h, search 'external line'
nvic.NVIC_IRQChannelPreemptionPriority = 0x00; //highest priority
nvic.NVIC_IRQChannelSubPriority = 0x00; //-||-
nvic.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&nvic);
//SysTick_Config(SystemCoreClock / 1000); //tick every 1ms
//uint32_t led = 0;
/*while (1) {
GPIO_SetBits(GPIOC, 1 << led); //set bit
delay_ms(150);
GPIO_ResetBits(GPIOC, 1 << led); //reset bit
if (++led >= 10) {
led = 0;
}
}*/
}
void gpio_irq_free(gpio_irq_t *obj) {
channel_ids[obj->irq_index] = 0;
channel_gpio[obj->irq_index] = 0;
channel_pin[obj->irq_index] = 0;
// Disable EXTI line
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_StructInit(&EXTI_InitStructure);
EXTI_Init(&EXTI_InitStructure);
obj->event = EDGE_NONE;
}
/**
* @brief External interrupt channel configuration for IRQ pin
* @note None
* @param Pointer to nRF24L01P_Object
* @retval None
*/
void NRF_EXTI_Config(nRF24L01P_Object* nrf)
{
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_StructInit(&EXTI_InitStructure);
/* EXTI Line Config */
GPIO_EXTILineConfig(nrf->IRQ_GPIO_PORT_SOURCE, nrf->IRQ_GPIO_PIN_SOURCE);
EXTI_InitStructure.EXTI_Line = nrf->EXTI_LINE;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}
void NRF2_EXTI_Init(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_StructInit(&EXTI_InitStructure);
/* IMPORTANT: Do Not Forget to Configure NVIC */
/* EXTI Line Mode Config */
GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource10);
EXTI_InitStructure.EXTI_Line = EXTI_Line10;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
}
// init exti line 0 (PA0 - user button)
//==============================================================================
static void init( void )
{
GPIO_InitTypeDef gpio_init;
EXTI_InitTypeDef exti_init;
NVIC_InitTypeDef nvic_init;
// create semaphore to implement delayed interrupt service
vSemaphoreCreateBinary( exti_0_semaphor );
if( !exti_0_semaphor )
hardware_fail();
// reset the EXTI peripheral registers to their default reset values
EXTI_DeInit();
// fills each gpio_init fields with its default value
GPIO_StructInit( &gpio_init );
// fills each exti_init fields with its reset value
EXTI_StructInit( &exti_init );
// enable GPIOA and AFIO clock
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE );
// configure PA0 as input floating
gpio_init.GPIO_Pin = GPIO_Pin_0;
gpio_init.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init( GPIOA, &gpio_init );
// connect PA0 to EXTI line 0
GPIO_EXTILineConfig( GPIO_PortSourceGPIOA, GPIO_PinSource0 );
// configure EXTI line 0
exti_init.EXTI_Line = EXTI_Line0;
exti_init.EXTI_Mode = EXTI_Mode_Interrupt;
exti_init.EXTI_Trigger = EXTI_Trigger_Rising;
exti_init.EXTI_LineCmd = ENABLE;
EXTI_Init( &exti_init );
// enable EXTI line 0 interrupt
// preemption priority: 12 or 0xcf > configMAX_SYSCALL_INTERRUPT_PRIORITY,
// so we can use FreeRTOS API inside interrupt handler
// sub priority: we don't use sub priority, look to main.c
nvic_init.NVIC_IRQChannel = EXTI0_IRQn;
nvic_init.NVIC_IRQChannelPreemptionPriority = 12;
nvic_init.NVIC_IRQChannelSubPriority = 0;
nvic_init.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init( &nvic_init );
}
/**
* @brief Configures the External Interrupts controller.
* @param None
* @retval None
*/
void EXTI_Configuration(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
/* Smartcard OFF */
GPIO_EXTILineConfig(SC_PortSource, SC_PinSource);
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_Line = SC_EXTI;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Clear SC EXTI Line Pending Bit */
EXTI_ClearITPendingBit(SC_EXTI);
}
/**
* @brief LPTIM GPIO,NVIC Configuration and EXTI LINE 23 configuration
* @param None
* @retval None
*/
void LPTIM_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
/* Enable LPTIM Peripheral */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_LPTIM1, ENABLE);
/* Enable GPIO for LPTIM Pins */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB , ENABLE);
/* Configure Pin PB5 for Input 1 */
GPIO_PinAFConfig(GPIOB, GPIO_PinSource5, GPIO_AF_LPTIM);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Configure External Trigger Pins (PC3,PB6) */
GPIO_PinAFConfig(GPIOC, GPIO_PinSource3, GPIO_AF_LPTIM);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_LPTIM);
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Enable the LPTIM global Interrupt */
/* Configure the Priority Group to 1 bit */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
/* Configure the SPI interrupt priority */
NVIC_InitStructure.NVIC_IRQChannel = LPTIM1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* EXTI Line 23 Configuration */
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Line = EXTI_Line23;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_Init(&EXTI_InitStructure);
}
void cnc_joystick_init(){
GPIO_InitTypeDef GPIO_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
uint8_t i;
GPIO_StructInit(&GPIO_InitStructure);
for( i = 0; i < 8; i++){
/* Enable the BUTTON Clock */
RCC_AHB1PeriphClockCmd(JOYSTICK_BUTTON_CLK[i], ENABLE);
/* Configure Button pin as input */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Pin = JOYSTICK_BUTTON_PIN[i];
GPIO_Init(JOYSTICK_BUTTON_PORT[i], &GPIO_InitStructure);
}
#if INTERRUPT_MODE
RCC_AHB1PeriphClockCmd(JOYSTICK_INTERRUPT_CLK, ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Pin = JOYSTICK_INTERRUPT_PIN;
GPIO_Init(JOYSTICK_INTERRUPT_PORT, &GPIO_InitStructure);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
SYSCFG_EXTILineConfig(JOYSTICK_EXTI_PORT, JOYSTICK_EXTI_PIN);
EXTI_DeInit();
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Line = JOYSTICK_EXTI_LINE;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_Init(&EXTI_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel = JOYSTICK_EXTI_IRQ;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 7; //Because of FreeRTOS
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
#endif
}
static int gpioh_set_int_status( elua_int_id id, elua_int_resnum resnum, int status )
{
int prev = gpioh_get_int_status( id, resnum );
u32 mask = 1 << exint_gpio_to_src( resnum );
EXTI_InitTypeDef exti_init_struct;
if( status == PLATFORM_CPU_ENABLE )
{
// Configure port for interrupt line
//GPIO_EXTILineConfig( PLATFORM_IO_GET_PORT( resnum ), PLATFORM_IO_GET_PIN( resnum ) );
EXTI_StructInit(&exti_init_struct);
exti_init_struct.EXTI_Line = exti_line[ exint_gpio_to_src( resnum ) ];
exti_init_struct.EXTI_Mode = EXTI_Mode_Interrupt;
if( ( ( ( EXTI->RTSR & mask ) != 0 ) && ( id == INT_GPIO_NEGEDGE ) ) ||
( ( ( EXTI->FTSR & mask ) != 0 ) && ( id == INT_GPIO_POSEDGE ) ) )
exti_init_struct.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
else
exti_init_struct.EXTI_Trigger = id == INT_GPIO_POSEDGE ? EXTI_Trigger_Rising : EXTI_Trigger_Falling;
exti_init_struct.EXTI_LineCmd = ENABLE;
EXTI_Init(&exti_init_struct);
EXTI_ClearITPendingBit( exti_line[ exint_gpio_to_src( resnum ) ] );
}
else
{
//Disable edge
if( id == INT_GPIO_POSEDGE )
EXTI->RTSR &= ~mask;
else
EXTI->FTSR &= ~mask;
//If no edges enabled, disable line interrupt
if( ( ( EXTI->RTSR | EXTI->FTSR ) & mask ) == 0 )
EXTI->IMR &= ~mask;
}
return prev;
}
void GPIOInit(void)
{
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE); // led
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); // PS2 in
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); // timer
/* LED */
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure PD12, PD13, PD14 and PD15 in output pushpull mode */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13| GPIO_Pin_14| GPIO_Pin_15;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/* PA1 & PA2 - PS2 clock i data */
GPIO_InitTypeDef GPIO_InitStructure_keyboard;
GPIO_InitStructure_keyboard.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2;
GPIO_InitStructure_keyboard.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure_keyboard.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure_keyboard.GPIO_Mode = GPIO_Mode_IN;
GPIO_Init(GPIOA, &GPIO_InitStructure_keyboard);
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_Line = EXTI_Line1;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
EXTI_ClearITPendingBit(EXTI1_IRQn);
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_ClearPendingIRQ(EXTI1_IRQn);
NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_InitTypeDef NVIC_InitStructure_TIM;
NVIC_InitStructure_TIM.NVIC_IRQChannel = TIM3_IRQn;
NVIC_InitStructure_TIM.NVIC_IRQChannelPreemptionPriority = 0x00;
NVIC_InitStructure_TIM.NVIC_IRQChannelSubPriority = 0x00;
NVIC_InitStructure_TIM.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure_TIM);
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_TimeBaseStructure.TIM_Prescaler = 42000-1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_Period = 500;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
TIM_SetCounter(TIM3, 0);
//na razie nie wlaczamy: TIM_Cmd(TIM3, ENABLE);
TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
}
/*******************************************************************************
* Function Name : RCC_Configuration
* Description : Configures the different system clocks.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void RCC_Configuration(void)
{
/* RCC system reset(for debug purpose) */
RCC_DeInit();
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* Flash 2 wait state */
FLASH_SetLatency(FLASH_Latency_2);
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK/2 */
RCC_PCLK1Config(RCC_HCLK_Div2);
/* PLLCLK = 8MHz * 9 = 72 MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
/* 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)
{
}
}
/* GPIOA, GPIOC, GPIO KEY Button, GPIO_LED and AFIO clocks enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIO_KEY_BUTTON |
RCC_APB2Periph_GPIO_LED | RCC_APB2Periph_GPIOC |
RCC_APB2Periph_AFIO, ENABLE);
#ifdef RTC_Alarm_WFEWakeUp
/* Enable the PWR and BKP Clocks */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
/* Configure the EXTI Line 17 as Event */
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Event;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_Line = EXTI_Line17;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Allow access to BKP Domain */
PWR_BackupAccessCmd(ENABLE);
/* Reset Backup Domain */
BKP_DeInit();
/* Enable LSE */
RCC_LSEConfig(RCC_LSE_ON);
/* Wait till LSE is ready */
while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
{
}
/* Select LSE as RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);
/* Wait for APB registers synchronisation */
RTC_WaitForSynchro();
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
/* Set the RTC time base to 1s */
RTC_SetPrescaler(32767);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
#endif
}
/**
* @brief Initialises the hardware required for the keypad. Also sets up interrupts for keypad events.
* @param None
* @retval None
*/
void keypad_init (void)
{
//Output Pins: PA15, PB6, PB5, PB4
EXTI_InitTypeDef EXTI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
// GPIOA Clocks enable
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOA, ENABLE);
// GPIOA Configuration
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_ResetBits(GPIOA, GPIO_Pin_15);
// GPIOB Clocks enable
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOB, ENABLE);
GPIO_StructInit(&GPIO_InitStructure);
// GPIOB Configuration
GPIO_InitStructure.GPIO_Pin = ( GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 );
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_ResetBits(GPIOB, ( GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 ));
//Input Pins with pull-ups and interrupt: PB7, PB8, PB9
// GPIOB Clocks enable
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOB, ENABLE);
GPIO_StructInit(&GPIO_InitStructure);
// GPIOB Configuration
GPIO_InitStructure.GPIO_Pin = (GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
// Enable SYSCFG clock
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
// Connect External Line x to PBx pin
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOB, EXTI_PinSource7);
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOB, EXTI_PinSource8);
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOB, EXTI_PinSource9);
// Configure External Interrupts on Lines
EXTI_StructInit(&EXTI_InitStructure);
EXTI_InitStructure.EXTI_Line = (EXTI_Line7 | EXTI_Line8 | EXTI_Line9);
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
// Enable and set EXTI4_15 Interrupt
NVIC_InitStructure.NVIC_IRQChannel = EXTI4_15_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}