//! [acc_irq_handler_start]
void ACC_Handler(void)
{
//! [acc_irq_handler_start]
//! [acc_irq_handler_status]
uint32_t ul_status;
ul_status = acc_get_interrupt_status(ACC);
/** Compare Output Interrupt */
if ((ul_status & ACC_ISR_CE) == ACC_ISR_CE) {
//! [acc_irq_handler_status]
//! [acc_irq_handler_result_1]
if (acc_get_comparison_result(ACC)) {
//! [acc_irq_handler_result_1]
puts("-ISR- Voltage Comparison Result: AD5 > DAC0\r");
//! [acc_irq_handler_result_2]
} else {
//! [acc_irq_handler_result_2]
puts("-ISR- Voltage Comparison Result: AD5 < DAC0\r");
//! [acc_irq_handler_result_3]
}
//! [acc_irq_handler_result_3]
//! [acc_irq_handler_result_end]
}
//! [acc_irq_handler_result_end]
//! [acc_irq_handler_end]
}
/**
* \brief Initialize re200b sensor in order to detect motion
* \param ul_acc_minus ACC minus input, use ACC peripheral definition in header.
* \param ul_acc_plus ACC plus input, use ACC peripheral definition in header.
*/
void re200b_motion_detect_init(uint32_t ul_acc_minus, uint32_t ul_acc_plus)
{
pmc_enable_periph_clk(ID_ACC);
/* Initialize ACC */
acc_init(ACC, ul_acc_plus, ul_acc_minus, ACC_MR_EDGETYP_ANY, ACC_MR_INV_DIS);
/* clear status */
acc_get_interrupt_status(ACC);
/* reset event flags */
g_compare_result = CMP_EQUAL;
g_ul_compare_event_flag = false;
}
/**
* Interrupt handler for the ACC.
*/
void ACC_Handler(void)
{
uint32_t ul_status;
ul_status = acc_get_interrupt_status(ACC);
/* Compare Output Interrupt */
if ((ul_status & ACC_ISR_CE) == ACC_ISR_CE) {
if (acc_get_comparison_result(ACC)) {
puts("-ISR- Voltage Comparison Result: AD0 > DAC0\r");
} else {
puts("-ISR- Voltage Comparison Result: AD0 < DAC0\r");
}
}
}
/**
* \brief re200b_motion_detect_handler which allow to know comparison result
* (CMP_GREATER or CMP_LESS)
*/
void re200b_motion_detect_handler(void)
{
uint32_t ul_status;
ul_status = acc_get_interrupt_status(ACC);
/* Compare Output Interrupt */
if ((ul_status & ACC_IER_CE) == ACC_IER_CE) {
g_ul_compare_event_flag = true;
if (acc_get_comparison_result(ACC)) {
g_compare_result = CMP_GREATER;
} else {
g_compare_result = CMP_LESS;
}
}
}
/**
* \brief Application entry point for smc_lcd example.
*
* \return Unused (ANSI-C compatibility).
*/
int main(void)
{
uint32_t i = 0;
uint8_t uc_string_display[30];
sysclk_init();
board_init();
/* LCD display initialization */
_display_init();
/* Clear LCD */
ili9325_fill(COLOR_WHITE);
/* Initialize Pir sensor */
re200b_motion_detect_init(ACC_MR_SELMINUS_AD0, ACC_MR_SELPLUS_AD4);
while (1) {
/* Reset motion detection (enable interrupt, clear variable,
* clear status register) */
re200b_motion_detect_enable();
re200b_motion_detect_reset();
acc_get_interrupt_status(ACC);
/* Enter sleep mode */
pmc_enable_sleepmode(0);
/* Check if a motion was detected */
if (re200b_motion_detection() != 0UL) {
/* Disable motion detection */
re200b_motion_detect_disable();
/* Display information about motion detection on LCD */
if ((i*LCD_LINE_HEIGHT) >= BOARD_LCD_HEIGHT) {
i = 0;
ili9325_fill(COLOR_WHITE);
}
sprintf((char*)uc_string_display, "Motion Detected:%ul", i);
ili9325_draw_string(0, i*LCD_LINE_HEIGHT, uc_string_display);
i++;
}
}
}
