/** \brief Proximity sensor threshold calibration application
*
* This application illustrates the use of the sensor_calibrate() function
* to set the proximity detection thresholds in a 3-channel proximity sensor.
* This threshold is the level at which the sensor will report that an object
* is near the device.
*
* The calibration sequence requires three steps, one for each channel. During
* each step, an object is placed at the desired distance in front of the
* sensor, and the user presses the button on the board to trigger a proximity
* reading.
*
* After Step 3 is completed, the threshold values for the sensor are
* calculated and are written to non-volatile (flash) memory on the
* microcontroller. These values will continue to be used for future
* proximity readings, unless they are overwritten by an application
* calling the sensor_set_threshold function for the proximity sensor
* channel(s).
*/
int main(void)
{
sensor_t prox_dev; /* Proximity sensor device */
sensor_data_t prox_data; /* Proximity data */
int led_num = 0;
/* Initialize the board (Xplained UC3 or XMEGA & Xplained Sensor boards)
* I/O pin mappings and any other configurable resources selected in
* the build configuration.
*/
sensor_platform_init();
LED_On(ALL_LEDS);
/* Wait for user to press button to start */
prompt_user("Press button to start");
/* Attach descriptor and initialize the proximity sensor */
sensor_attach(&prox_dev, SENSOR_TYPE_PROXIMITY, 0, 0);
#if (SET_PROX_CURRENT == true)
/* Manually set LED current value for each channel */
/* Otherwise, sensor will use default values */
sensor_set_channel(&prox_dev, SENSOR_CHANNEL_ALL);
sensor_set_current(&prox_dev, PROX_CURRENT_mA);
#endif
/* Set sensor data output formats (for display after calibration
* complete) */
prox_data.scaled = true;
/* Perform calibration sequence */
/* Step 1 */
printf("Setting channel 1: ");
prompt_user("Place object at desired distance and press button");
(void)sensor_calibrate(&prox_dev, MANUAL_CALIBRATE, 1, NULL);
/* Step 2 */
printf("Setting channel 2: ");
prompt_user("Place object at desired distance and press button");
(void)sensor_calibrate(&prox_dev, MANUAL_CALIBRATE, 2, NULL);
/* Step 3 */
printf("Setting channel 3: ");
prompt_user("Place object at desired distance and press button");
if (sensor_calibrate(&prox_dev, MANUAL_CALIBRATE, 3, NULL) != true) {
if (prox_dev.err == SENSOR_ERR_IO) {
printf("Calibration failure: write error\n\r");
} else {
printf("Unknown error while calibrating device\n\r");
}
while (true) {
/* Error occurred, loop forever */
}
}
int16_t value;
/* Display threshold values */
sensor_set_channel(&prox_dev, 1);
sensor_get_threshold(&prox_dev, SENSOR_THRESHOLD_NEAR_PROXIMITY,
&value);
printf("Channel 1 threshold = %d\r\n", value);
sensor_set_channel(&prox_dev, 2);
sensor_get_threshold(&prox_dev, SENSOR_THRESHOLD_NEAR_PROXIMITY,
&value);
printf("Channel 2 threshold = %d\r\n", value);
sensor_set_channel(&prox_dev, 3);
sensor_get_threshold(&prox_dev, SENSOR_THRESHOLD_NEAR_PROXIMITY,
&value);
printf("Channel 3 threshold = %d\r\n", value);
/* Once the calibration is complete, the proximity status is
* continuously captured and displayed.
*/
while (true) {
/* Change LED display */
LED_Toggle(led_array [led_num++]);
if (led_num >= NUM_BLINK_LEDS) {
led_num = 0;
}
/* Sample proximity and display results for each channel */
sensor_get_proximity(&prox_dev, &prox_data);
printf("prox = 1:%s 2:%s 3:%s\r\n",
prox_labels[prox_data.proximity.value[0]],
prox_labels[prox_data.proximity.value[1]],
prox_labels[prox_data.proximity.value[2]]);
delay_ms(500);
}
return 0;
}
void ui_start_read(void)
{
LED_On(LED1_GPIO);
}
void ui_init(void)
{
LED_On(LED0_GPIO);
LED_Off(LED1_GPIO);
LED_Off(LED2_GPIO);
}
void ui_init(void)
{
LED_On(LED0);
LED_Off(LED1);
}
void ui_start_write(void)
{
LED_On(LED2);
}
void ui_init(void)
{
// Initialize LEDs
LED_On(LED_0_PIN);
}
void ui_wakeup(void)
{
LED_On(LED_0_PIN);
}
void ui_com_tx_start(void)
{
LED_On(LED2_GPIO);
}
void ui_com_overflow(void)
{
LED_On(LED_BI1_RED);
}
void ui_com_open(uint8_t port)
{
UNUSED(port);
LED_On(LED1_GPIO);
}
void ui_com_error(void)
{
LED_On(LED_BI0_RED);
}
void ui_com_tx_start(void)
{
LED_On(LED_BI1_GREEN);
}
void ui_com_rx_start(void)
{
LED_On(LED_BI0_GREEN);
}
void ui_wakeup(void)
{
LED_On(LED0);
}
/** \brief Main function. */
int main(void)
{
uint8_t delay_counter;
volatile uint16_t delay;
/* Initialize the board.
* The board-specific conf_board.h file contains the configuration of
* the board initialization.
*/
sysclk_init();
board_init();
/* Detection of all RESET except WDT RESET. */
if ((reset_cause_get_causes() & CHIP_RESET_CAUSE_WDT)
!= CHIP_RESET_CAUSE_WDT) {
state_flag = START_OF_PROG;
reset_cause_clear_causes(CHIP_RESET_CAUSE_POR |
CHIP_RESET_CAUSE_EXTRST |
CHIP_RESET_CAUSE_BOD_CPU);
} else {
reset_cause_clear_causes(CHIP_RESET_CAUSE_WDT);
}
wdt_disable();
while (true) {
switch (state_flag) {
case START_OF_PROG:
/* Writing test. */
wdt_set_timeout_period(WDT_TIMEOUT_PERIOD_2KCLK);
if (wdt_get_timeout_period() !=
WDT_TIMEOUT_PERIOD_2KCLK) {
state_flag = ERROR_STATE;
break;
}
wdt_set_timeout_period(WDT_TIMEOUT_PERIOD_1024KCLK);
if (wdt_get_timeout_period() !=
WDT_TIMEOUT_PERIOD_1024KCLK) {
state_flag = ERROR_STATE;
break;
}
/* Wait for 2 s. */
delay = 2000;
delay_ms(delay);
state_flag = WDT_MCU_RESET;
break;
case WDT_MCU_RESET:
state_flag = REFRESH_WDT;
wdt_reset_mcu();
break;
case REFRESH_WDT:
/* Enable WDT 500 ms. */
wdt_set_timeout_period(WDT_TIMEOUT_PERIOD_64KCLK);
wdt_enable(SYSTEM_RESET_MODE);
if (wdt_get_timeout_period() !=
WDT_TIMEOUT_PERIOD_64KCLK) {
state_flag = ERROR_STATE;
break;
}
for (delay_counter = 0; delay_counter < 8;
delay_counter++) {
/* Wait for 8x 250 ms = 2 s. */
delay = 250;
delay_ms(delay);
wdt_reset();
}
wdt_disable();
state_flag = WDT_RST;
break;
case WDT_RST:
state_flag = WDT_INTERRUPT;
/* Enable WDT 2 s. */
wdt_set_timeout_period(WDT_TIMEOUT_PERIOD_256KCLK);
wdt_enable(SYSTEM_RESET_MODE);
if (wdt_get_timeout_period() !=
WDT_TIMEOUT_PERIOD_256KCLK) {
state_flag = ERROR_STATE;
break;
}
while (true) {
/* Wait for Watchdog reset. */
}
/* No break is needed */
case WDT_INTERRUPT:
/* Enable WDT 250 ms. */
wdt_set_timeout_period(WDT_TIMEOUT_PERIOD_32KCLK);
wdt_set_interrupt_callback(wdt_timer_callback);
wdt_enable(INTERRUPT_MODE);
if (wdt_get_timeout_period() !=
WDT_TIMEOUT_PERIOD_32KCLK) {
state_flag = ERROR_STATE;
break;
}
cpu_irq_enable();
/* Wait for interrupt to get triggered */
delay = 400;
delay_ms(delay);
wdt_disable();
break;
case WDT_RST_INTERRUPT:
/* Enable WDT 125 ms. */
wdt_set_timeout_period(WDT_TIMEOUT_PERIOD_16KCLK);
wdt_set_interrupt_callback(wdt_timer_callback);
wdt_enable(INTERRUPT_SYSTEM_RESET_MODE);
if (wdt_get_timeout_period() !=
WDT_TIMEOUT_PERIOD_16KCLK) {
state_flag = ERROR_STATE;
break;
}
/* Wait for 200 ms. */
delay = 200;
delay_ms(delay);
wdt_reset();
while (true) {
/* Wait for Watchdog reset. */
}
/* No break is needed */
case ERROR_STATE:
wdt_disable();
while (true) {
LED_On(LED_PIN);
/* Wait for 500 ms. */
delay = 500;
delay_ms(delay);
/* Blinking. */
LED_Off(LED_PIN);
/* Wait for 500 ms. */
delay = 500;
delay_ms(delay);
}
/* No break is needed */
case END_OF_PROG:
default:
LED_On(LED_PIN);
while (true) {
}
/* No break is needed */
}
}
}
void ui_process(uint16_t framenumber)
{
bool b_btn_state, sucess;
static bool btn_last_state = false;
static bool sequence_running = false;
static uint8_t u8_sequence_pos = 0;
uint8_t u8_value;
static uint16_t cpt_sof = 0;
if ((framenumber % 1000) == 0) {
LED_On(LED0_GPIO);
}
if ((framenumber % 1000) == 500) {
LED_Off(LED0_GPIO);
}
// Scan process running each 2ms
cpt_sof++;
if ((cpt_sof % 2) == 0) {
return;
}
// Scan buttons on switch 0 to send keys sequence
b_btn_state = (!gpio_pin_is_high(GPIO_PUSH_BUTTON_1)) ? true : false;
if (b_btn_state != btn_last_state) {
btn_last_state = b_btn_state;
sequence_running = true;
}
// Sequence process running each period
if (SEQUENCE_PERIOD > cpt_sof) {
return;
}
cpt_sof = 0;
if (sequence_running) {
// Send next key
u8_value = ui_sequence[u8_sequence_pos].u8_value;
if (u8_value!=0) {
if (ui_sequence[u8_sequence_pos].b_modifier) {
if (ui_sequence[u8_sequence_pos].b_down) {
sucess = udi_hid_kbd_modifier_down(u8_value);
} else {
sucess = udi_hid_kbd_modifier_up(u8_value);
}
} else {
if (ui_sequence[u8_sequence_pos].b_down) {
sucess = udi_hid_kbd_down(u8_value);
} else {
sucess = udi_hid_kbd_up(u8_value);
}
}
if (!sucess) {
return; // Retry it on next schedule
}
}
// Valid sequence position
u8_sequence_pos++;
if (u8_sequence_pos >=
sizeof(ui_sequence) / sizeof(ui_sequence[0])) {
u8_sequence_pos = 0;
sequence_running = false;
}
}
}
void ui_device_sof_action(void)
{
uint16_t framenumber;
static uint8_t cpt_sof = 0;
static int32_t move_count = MOUSE_MOVE_COUNT;
static uint8_t move_dir = MOVE_UP;
if (!ui_device_b_mouse_enable) {
return;
}
framenumber = udd_get_frame_number();
if ((framenumber % 1000) == 0) {
LED_On(LED0);
}
if ((framenumber % 1000) == 500) {
LED_Off(LED0);
}
/* Scan process running each 2ms */
cpt_sof++;
if (2 > cpt_sof) {
return;
}
cpt_sof = 0;
/* Uses buttons to move mouse */
if (!ioport_get_pin_level(GPIO_PUSH_BUTTON_0)) {
move_count--;
switch (move_dir) {
case MOVE_UP:
udi_hid_mouse_moveY(-MOUSE_MOVE_RANGE);
if (move_count < 0) {
move_dir = MOVE_RIGHT;
move_count = MOUSE_MOVE_COUNT;
}
break;
case MOVE_RIGHT:
udi_hid_mouse_moveX(+MOUSE_MOVE_RANGE);
if (move_count < 0) {
move_dir = MOVE_DOWN;
move_count = MOUSE_MOVE_COUNT;
}
break;
case MOVE_DOWN:
udi_hid_mouse_moveY(+MOUSE_MOVE_RANGE);
if (move_count < 0) {
move_dir = MOVE_LEFT;
move_count = MOUSE_MOVE_COUNT;
}
break;
case MOVE_LEFT:
udi_hid_mouse_moveX(-MOUSE_MOVE_RANGE);
if (move_count < 0) {
move_dir = MOVE_UP;
move_count = MOUSE_MOVE_COUNT;
}
break;
}
}
}
void ui_init(void)
{
/* Initialize LEDs */
LED_On(LED_0_PIN);
}
void ui_com_tx_start(void)
{
ui_data_transfer = true;
LED_On(LED_0_PIN);
}
/**
* \brief Example application entry routine
*/
int main(void)
{
/* The sensor_platform_init() function will initialize the system
* clock and sensor bus support in addition to configuring the
* XMEGA-A3BU and Sensor Xplained boards.
*
* Use gfx_mono_init() to initialize the monochrome graphical system
* API then write a splash screen after enabling the LCD display
* backlight and setting the contrast.
*
* The MCU is going to be put in a sleep mode, so initialize the
* sleep manager API with a call to the sleepmgr_init() routine.
*/
sensor_platform_init();
gfx_mono_init();
sleepmgr_init();
gpio_set_pin_high(NHD_C12832A1Z_BACKLIGHT);
st7565r_set_contrast(ST7565R_DISPLAY_CONTRAST_MIN);
/* Attach an accelerometer on a Sensors Xplained board. */
sensor_t accelerometer;
sensor_attach(&accelerometer, SENSOR_TYPE_ACCELEROMETER, 0, 0);
/* Enable the accelerometer low-g (free fall) event. */
sensor_enable_event(&accelerometer, SENSOR_EVENT_LOW_G);
/* Set the free fall threshold (low-g event), bandwidth and range. */
sensor_set_threshold(&accelerometer, SENSOR_THRESHOLD_LOW_G,
LOW_G_THRESHOLD);
sensor_set_bandwidth(&accelerometer, BANDWIDTH);
sensor_set_range(&accelerometer, RANGE);
while (true) {
/* Put the accelerometer into a low-power mode (if available). */
sensor_set_state(&accelerometer, SENSOR_STATE_LOW_POWER);
LED_Off(ACCEL_LED);
clear_screen();
/* Display the "armed" message and put the MCU in sleep mode. */
gfx_mono_draw_string("ATMEL Drop Demo\r\nXMEGA Powered Down\r\n"
"g Sensor Armed", 1, 5, &sysfont);
sleepmgr_lock_mode(SLEEP_MODE);
sleepmgr_enter_sleep();
/* The following runs after the MCU has been woken by an
* external low-g interrupt from the accelerometer.
*
* Turn on the red LED while falling and put the accelerometer
* into a high-power mode (if available) to sample date points.
*/
LED_On(ACCEL_LED);
sensor_set_state(&accelerometer, SENSOR_STATE_HIGHEST_POWER);
static scalar_t acceleration_waveform[DATA_SAMPLE_COUNT];
scalar_t acceleration_max = 0;
for (int data_count = 0; data_count < DATA_SAMPLE_COUNT;
++data_count) {
acceleration_waveform[data_count] = 0;
for (int i = 0; i < SAMPLE_AVG_COUNT; ++i) {
/* Calculate the gravity vector magnitude. */
vector3_t gvec;
sensor_get_vector(&accelerometer, &gvec);
scalar_t const acceleration_magnitude
= vector3_magnitude(&gvec);
/* Store the maximum g magnitude for this
* sub-group. */
if (acceleration_magnitude >
acceleration_waveform[data_count]) {
acceleration_waveform[data_count]
= acceleration_magnitude;
}
/* Store the maximum g magnitude for the whole
* data set. */
if (acceleration_magnitude > acceleration_max) {
acceleration_max = acceleration_magnitude;
}
}
}
clear_screen();
/* Turn the max acceleration into a string and convert to g. */
static char max_g_string[20];
if (acceleration_max > LOW_G_SATURATION) {
sprintf(max_g_string, "g Sensor Saturated");
} else {
sprintf(max_g_string, "Peak = %02.2f g",
acceleration_max / 1000);
}
/* Print the max g on the monochrome display. */
gfx_mono_draw_string("Drop Detected", 1, 5, &sysfont);
gfx_mono_draw_string(max_g_string, 1, 13, &sysfont);
gfx_mono_draw_string("Press SW1 for chart", 1, 21, &sysfont);
do {
LED_Toggle(ACCEL_LED);
delay_ms(100);
} while (!switch_pressed(SW1));
/* Plot the collected data points to create the waveform chart. */
clear_screen();
screen_border();
for (int data_count = 0; data_count < DATA_SAMPLE_COUNT; ++data_count) {
gfx_mono_draw_filled_circle(data_count,
32 -
(acceleration_waveform[data_count] / 500), 1,
GFX_PIXEL_SET, GFX_WHOLE);
}
do {
LED_Toggle(PROMPT_LED);
delay_ms(100);
} while (!switch_pressed(SW1));
LED_Off(PROMPT_LED);
}
}
void debug_test(void)
{
LED_On(LED3_GPIO);
}
void ui_start_read(void)
{
LED_On(LED2);
}
/* Interrupt on "pin change" from push button to do wakeup on USB
* Note:
* This interrupt is enable when the USB host enable remote wakeup feature
* This interrupt wakeup the CPU if this one is in idle mode
*/
static void ui_wakeup_handler(void)
{
/* It is a wakeup then send wakeup USB */
udc_remotewakeup();
LED_On(LED_0_PIN);
}
void ui_init(void)
{
// Initialize LEDs
LED_On(LED0_GPIO);
LED_Off(LED1_GPIO);
}
void ui_process(uint16_t framenumber)
{
bool b_btn_state, success;
static bool btn_last_state = false;
static bool sequence_running = false;
static uint8_t sequence_pos = 0;
uint8_t value;
static uint16_t cpt_sof = 0;
if ((framenumber % 1000) == 0) {
LED_On(LED_0_PIN);
}
if ((framenumber % 1000) == 500) {
LED_Off(LED_0_PIN);
}
// Scan process running each 2ms
cpt_sof++;
if ((cpt_sof % 2) == 0) {
return;
}
// Scan buttons on switch 0 to send keys sequence
b_btn_state = (!port_pin_get_input_level(BUTTON_0_PIN));
if (b_btn_state != btn_last_state) {
btn_last_state = b_btn_state;
if (btn_wakeup) {
if (!b_btn_state) {
btn_wakeup = false;
}
} else {
sequence_running = true;
}
}
// Sequence process running each period
if (SEQUENCE_PERIOD > cpt_sof) {
return;
}
cpt_sof = 0;
if (sequence_running) {
// Send next key
value = ui_sequence[sequence_pos].value;
if (value!=0) {
if (ui_sequence[sequence_pos].b_modifier) {
if (ui_sequence[sequence_pos].b_down) {
success = udi_hid_kbd_modifier_down(value);
} else {
success = udi_hid_kbd_modifier_up(value);
}
} else {
if (ui_sequence[sequence_pos].b_down) {
success = udi_hid_kbd_down(value);
} else {
success = udi_hid_kbd_up(value);
}
}
if (!success) {
return; // Retry it on next schedule
}
}
// Valid sequence position
sequence_pos++;
if (sequence_pos >=
sizeof(ui_sequence) / sizeof(ui_sequence[0])) {
sequence_pos = 0;
sequence_running = false;
}
}
}
void ui_start_write(void)
{
LED_On(LED1_GPIO);
}
void ui_init(void)
{
// Initialize LEDs
LED_On(LED0);
}
void ui_wakeup(void)
{
LED_On(LED0_GPIO);
}
void ui_init(void)
{
LED_On(LED0);
}