/*!
@brief Program entry point
*/
int main (void) {
Mode currentMode;
mainThread_ID = osThreadGetId();
// start threads. Low priority ensures main will finish
osThreadDef (tM_run, osPriorityBelowNormal, 1, 0);
tempThread_ID = osThreadCreate( osThread (tM_run), NULL);
osThreadDef (aM_run, osPriorityBelowNormal, 1, 0);
accThread_ID = osThreadCreate( osThread (aM_run), NULL);
LED_init();
buttonInit();
tM_init();
aM_init();
// lock both mode semaphores, they are both in "used" mode
osSemaphoreWait( tempSema, osWaitForever);
osSemaphoreWait( accSema, osWaitForever);
// start in TEMP_MODE
currentMode = TEMP_MODE;
osSemaphoreRelease( tempSema);
TIM3_Init(ACC_FREQ);
while(1) {
//will start and wait for a tap before anything happends
//it will run the threads though
osSignalWait(0x1, osWaitForever);
// once we're past here, it means a tap has been detected!
switch( currentMode) {
case TEMP_MODE:
// we wait until the semaphore becomes available
osSemaphoreWait( tempSema, osWaitForever);
osDelay (500);
acc_clearLatch();
osSemaphoreRelease(accSema);
currentMode = ACC_MODE;
break;
case ACC_MODE:
osSemaphoreWait( accSema, osWaitForever);
osDelay (500);
acc_clearLatch();
osSemaphoreRelease(tempSema);
currentMode = TEMP_MODE;
break;
}
}
}
static void interruptEnable() {
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
uint8_t ctrl;
//enable single click interrupt
ctrl=0x7;
LIS302DL_Write( &ctrl,LIS302DL_CTRL_REG3_ADDR, 1);
//initialise the interrupt for values bigger than that threshold on Z threshold
ctrl=0x04;
LIS302DL_Write( &ctrl, LIS302DL_CLICK_THSZ_REG_ADDR, 1);
//set the timing
ctrl=0x01;
LIS302DL_Write( &ctrl, LIS302DL_CLICK_TIMELIMIT_REG_ADDR, 1);
ctrl = 0x00;
LIS302DL_Write( &ctrl, LIS302DL_CLICK_LATENCY_REG_ADDR, 1);
// ctrl = 0x00;
// LIS302DL_Write( &ctrl, LIS302DL_CLICK_WINDOW_REG_ADDR, 1);
/* Enable SYSCFG clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
/* Connect PE0 pin to EXTI Line0*/
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOE, EXTI_PinSource0);
/* Configure EXTI Line0 */
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);
/* Enable and set EXTI Line0 Interrupt to the lowest priority */
NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
acc_clearLatch();
}