/**
* @brief Configures the buttons to generate interrupts when pressed.
*/
void ConfigureButtons(void)
{
// Configure PIO
PIO_Configure(&pinPB1, 1);
PIO_Configure(&pinPB2, 1);
// Initialize interrupts
PIO_InitializeInterrupts(AT91C_AIC_PRIOR_LOWEST);
PIO_ConfigureIt(&pinPB1, (void (*)(const Pin *)) ISR_Bp1);
PIO_ConfigureIt(&pinPB2, (void (*)(const Pin *)) ISR_Bp2);
PIO_EnableIt(&pinPB1);
PIO_EnableIt(&pinPB2);
}
static void prvConfigureVBus( void )
{
const Pin xVBusPin = PIN_USB_VBUS;
const uint32_t ulPriority = 7; /* Highest. */
/* Configure PIO to generate an interrupt on status change. */
PIO_Configure( &xVBusPin, 1 );
PIO_ConfigureIt( &xVBusPin );
/* Ensure interrupt is disabled before setting the mode and installing the
handler. The priority of the tick interrupt should always be set to the
lowest possible. */
AIC->AIC_SSR = ID_PIOE;
AIC->AIC_IDCR = AIC_IDCR_INTD;
AIC->AIC_SMR = AIC_SMR_SRCTYPE_EXT_POSITIVE_EDGE | ulPriority;
AIC->AIC_SVR = ( uint32_t ) prvVBusISRHandler;
/* Start with the interrupt clear. */
AIC->AIC_ICCR = AIC_ICCR_INTCLR;
PIO_EnableIt( &xVBusPin );
AIC_EnableIT( ID_PIOE );
/* Check current level on VBus */
if( PIO_Get( &xVBusPin ) != pdFALSE )
{
/* If VBUS present, force the connect */
USBD_Connect();
}
else
{
USBD_Disconnect();
}
}
int main(void)
{
/// Init DBGU
TRACE_CONFIGURE(DBGU_STANDARD, 115200, BOARD_MCK);
printf("-- %s: blink-interrupt Project with at91lib v%s --\n\r", BOARD_NAME, SOFTPACK_VERSION);
printf("-- Compiled: %s %s --\n\r", __DATE__, __TIME__);
/// Init PIOA & PIOB interrupt
PIO_InitializeInterrupts(0);
/// Init LED
PIO_Configure(&pinLed, 1);
TRACE_INFO("LED:\n\r");
/// Configure and enable the interrupt
PIO_ConfigureIt(&pinButton, (void (*)(const Pin *)) User_InterruptHandler);
PIO_EnableIt(&pinButton);
while (1)
{
PIO_Set(&pinLed);
delay(1000);
PIO_Clear(&pinLed);
delay(1000);
}
}
//------------------------------------------------------------------------------
/// Configures the wake-up pin to generate interrupts.
//------------------------------------------------------------------------------
static void ConfigureWakeUp(void)
{
TRACE_INFO("Wake-up configuration\n\r");
// Configure PIO
PIO_Configure(&pinWakeUp, 1);
PIO_ConfigureIt(&pinWakeUp, WakeUpHandler);
PIO_EnableIt(&pinWakeUp);
}
//Sets up pins for encoder
void encoder_init(void){
// Pio pins for encoder
static const Pin encoder_pin_cw = ENCODER_CLOCKWISE;
static const Pin encoder_pin_acw = ENCODER_ANTICLOCKWISE;
//initilise pulse counter
encoder_position_output = 0;
//sets pins as inputs
PIO_Configure(&encoder_pin_cw, 1);
PIO_Configure(&encoder_pin_acw, 1);
// Initialize interrupts
PIO_ConfigureIt(&encoder_pin_cw, ENCODER_ISR_UP);
PIO_ConfigureIt(&encoder_pin_acw, ENCODER_ISR_DOWN);
PIO_EnableIt(&encoder_pin_cw);
PIO_EnableIt(&encoder_pin_acw);
}
//------------------------------------------------------------------------------
/// Configures the VBus pin to trigger an interrupt when the level on that pin
/// changes.
//------------------------------------------------------------------------------
static void VBus_Configure( void ) {
// Configure PIO
PIO_Configure(&pinVbus, 1);
PIO_ConfigureIt(&pinVbus, ISR_Vbus);
PIO_EnableIt(&pinVbus);
// Check current level on VBus
if (PIO_Get(&pinVbus))
// if VBUS present, force the connect
USBD_Connect();
}
/**
* \brief Configure the Pushbuttons
*
* Configure the PIO as inputs and generate corresponding interrupt when
* pressed or released.
*/
void ConfigureButtons(void)
{
/* Configure pios as inputs. */
PIO_Configure(&pinPB1, 1);
PIO_Configure(&pinPB2, 1);
/* Adjust pio debounce filter patameters, uses 10 Hz filter. */
PIO_SetDebounceFilter(&pinPB1, 10);
PIO_SetDebounceFilter(&pinPB1, 10);
/* Initialize pios interrupt handlers, see PIO definition in board.h. */
PIO_ConfigureIt(&pinPB1, Button1_Handler); /* Interrupt on rising edge */
PIO_ConfigureIt(&pinPB2, Button2_Handler); /* Interrupt on falling edge */
/* Enable PIO controller IRQs. */
NVIC_EnableIRQ((IRQn_Type)pinPB1.id);
NVIC_EnableIRQ((IRQn_Type)pinPB2.id);
/* Enable PIO line interrupts. */
PIO_EnableIt(&pinPB1);
PIO_EnableIt(&pinPB2);
}
/**
* Configures the VBus pin to trigger an interrupt when the level on that pin
* changes.
*/
static void VBus_Configure( void )
{
/* Configure PIO */
PIO_Configure(&pinVbus, 1);
PIO_ConfigureIt(&pinVbus, ISR_Vbus);
PIO_EnableIt(&pinVbus);
/* Check current level on VBus */
if (PIO_Get(&pinVbus)) {
/* if VBUS present, force the connect */
USBD_Connect();
}
else {
TRACE_INFO("discon\n\r");
USBD_Disconnect();
}
}
//Sets up pin and buffer for speed sensor
void speed_init(void){
//initilize buffer
for(int i = 0; i < SPEED_BUFFER_SIZE; i++){
speed_buffer[i] = 0;
}
//sets inital speed to 0
speed_output = 0;
//sets pins as inputs
PIO_Configure(&speed_pin, 1);
// Initialize interrupts
PIO_ConfigureIt(&speed_pin, (void (*)(const Pin *)) SPEED_ISR);
PIO_EnableIt(&speed_pin);
TRACE_INFO("Speed sensor initilazaton complete\n\r");
}
//------------------------------------------------------------------------------
/// Configures the VBus pin to trigger an interrupt when the level on that pin
/// changes.
//------------------------------------------------------------------------------
static void VBus_Configure( void )
{
TRACE_INFO("VBus configuration\n\r");
// Configure PIO
PIO_Configure(&pinVbus, 1);
PIO_ConfigureIt(&pinVbus, ISR_VBus);
PIO_EnableIt(&pinVbus);
// Check current level on VBus
if (PIO_Get(&pinVbus)) {
// if VBUS present, force the connect
TRACE_INFO("VBUS conn\n\r");
USBD_Connect();
}
else {
USBD_Disconnect();
}
}
static void prvConfigureVBus( void )
{
const Pin xVBusPin = PIN_USB_VBUS;
/* Configure PIO to generate an interrupt on status change. */
PIO_Configure( &xVBusPin, 1 );
PIO_ConfigureIt( &xVBusPin, prvVBusISRHandler );
PIO_EnableIt( &xVBusPin );
/* Check current level on VBus */
if( PIO_Get( &xVBusPin ) != pdFALSE )
{
/* if VBUS present, force the connect */
USBD_Connect();
}
else
{
USBD_Disconnect();
}
}
/**
* Configures the smartcard detection pin to trigger an interrupt.
*/
static void ConfigureCardDetection(void)
{
PIO_Configure(&pinSmartCard, 1);
PIO_ConfigureIt(&pinSmartCard, ISR_PioSmartCard);
PIO_EnableIt(&pinSmartCard);
}
void usb_detect_configure(void) {
// Configure PIO
PIO_Configure(&pin_usb_detect, 1);
PIO_ConfigureIt(&pin_usb_detect, usb_isr_vbus);
PIO_EnableIt(&pin_usb_detect);
}