/**
* \brief Starts the calibration routines and displays user instructions on screen.
*
* \return 0 if calibration is successful, else 1.
*/
uint32_t rtouch_calibrate(void)
{
uint32_t i;
uint32_t x, y;
/* Print user instructions */
lcd_fill(UNI_COLOR_WHITE);
lcd_set_foreground_color(UNI_COLOR_BLACK);
lcd_draw_string(30, 60, (uint8_t *)"LCD calibration");
lcd_draw_string(1, 190, (uint8_t *)"Touch the dots to\ncalibrate the screen");
/* Calibration points */
for (i = 0; i < 5; i++) {
draw_calibration_point(&gs_calibration_points[i].panel);
/* Wait for touch & end of conversion */
rtouch_wait_pressed();
rtouch_get_raw_point(&x, &y);
gs_calibration_points[i].raw.x = x;
gs_calibration_points[i].raw.y = y;
clear_calibration_point(&gs_calibration_points[i].panel);
/* Wait for contact loss */
rtouch_wait_released();
}
if (rtouch_compute_calibration((rtouch_calibration_point_t *) &gs_calibration_points) == 0) {
lcd_fill(UNI_COLOR_WHITE);
lcd_set_foreground_color(UNI_COLOR_BLACK);
lcd_draw_string(20, 130, (uint8_t *)"Calibration done.");
return 0;
} else {
lcd_fill(UNI_COLOR_WHITE);
lcd_set_foreground_color(UNI_COLOR_BLACK);
lcd_draw_string(10, 100, (uint8_t *)"Calibration failed!");
lcd_draw_string(10, 190, (uint8_t *)"Please try again...");
/* Wait for contact loss */
rtouch_wait_released();
return 1;
}
}
/** \brief Main function. Execution starts here.
*/
int main(void)
{
uint8_t uc_result;
/* Initialize the sleep manager */
sleepmgr_init();
membag_init();
sysclk_init();
init_specific_board();
/* Initialize the console uart */
configure_console();
/* Output demo infomation. */
printf("-- SAM Toolkit Demo Example --\n\r");
printf("-- %s\n\r", BOARD_NAME);
printf("-- Compiled: %s %s --\n\r", __DATE__, __TIME__);
/* Configure systick for 1 ms. */
puts("Configure system tick to get 1ms tick period.\r");
if (SysTick_Config(sysclk_get_cpu_hz() / 1000)) {
puts("Systick configuration error\r");
while (1) {
}
}
/* Initialize gfx module */
gfx_init();
win_init();
/* Initialize FatFS and bitmap draw interface */
demo_draw_bmpfile_init();
/* Initialize touchscreen without calibration */
rtouch_init(LCD_WIDTH, LCD_HEIGHT);
rtouch_enable();
rtouch_set_event_handler(event_handler);
/* Initialize demo parameters */
demo_parameters_initialize();
while (g_demo_parameters.calib_points[0].raw.x == 0) {
uc_result = rtouch_calibrate();
if (uc_result == 0) {
demo_set_special_mode_status(DEMO_LCD_CALIBRATE_MODE, 0);
puts("Calibration successful !\r");
break;
} else {
puts("Calibration failed; error delta is too big ! Please retry calibration procedure...\r");
}
}
/* Re-caculate the calibration data */
rtouch_compute_calibration(
(rtouch_calibration_point_t *)&g_demo_parameters.calib_points[0]);
/* Setup root window */
setup_gui_root_window();
gfx_draw_bitmap(&win_startup_bmp, 0, 40);
/* Set backlight by the data read from demo parameters */
aat31xx_set_backlight(g_demo_parameters.backlight);
/* Default RTC configuration, 24-hour mode */
rtc_set_hour_mode(RTC, 0);
rtc_set_time(RTC, g_demo_parameters.hour, g_demo_parameters.minute,
g_demo_parameters.second);
rtc_set_date( RTC, g_demo_parameters.year, g_demo_parameters.month,
g_demo_parameters.day, 1 );
/* Create a semaphore to manage the memories data transfer */
vSemaphoreCreateBinary(main_trans_semphr);
/* Turn on main widget */
app_widget_main_on(true);
/* Initialize QTouch */
demo_qt_init();
/* Start USB stack to authorize VBus monitoring */
udc_start();
if (!udc_include_vbus_monitoring()) {
/* VBUS monitoring is not available on this product
* thereby VBUS has to be considered as present */
main_vbus_action(true);
}
/* Create task to window task */
if (xTaskCreate(task_win, "WIN", TASK_WIN_STACK_SIZE, NULL,
TASK_WIN_STACK_PRIORITY, NULL) != pdPASS) {
printf("Failed to create test led task\r\n");
}
/* Create task to usb mass storage task */
if (xTaskCreate(task_usb, "USB", TASK_USB_STACK_SIZE, NULL,
TASK_USB_STACK_PRIORITY, NULL) != pdPASS) {
printf("Failed to create test led task\r\n");
}
/* Start the scheduler. */
vTaskStartScheduler();
/* Will only get here if there was insufficient memory to create the
* idle task. */
return 0;
}
/**
* \brief Starts the calibration routines and displays user instructions on screen.
*
* \return 0 if calibration is successful, else 1.
*/
uint32_t rtouch_calibrate(void)
{
uint32_t i;
uint32_t x, y;
/* Fill the whole screen with the background color */
gfx_draw_filled_rect(0, 0, gfx_get_width(), gfx_get_height(), BGCOLOR);
/* Print user instructions */
/* Write center-aligned text string to the top of the display */
gfx_draw_string_aligned(string_calib_name,
gfx_get_width() / 2, 60, &sysfont,
GFX_COLOR_WHITE, TXTCOLOR,
TEXT_POS_CENTER, TEXT_ALIGN_LEFT);
gfx_draw_string_aligned(string_calib_instruction,
gfx_get_width() / 2, 190, &sysfont,
GFX_COLOR_WHITE, TXTCOLOR,
TEXT_POS_CENTER, TEXT_ALIGN_LEFT);
/* Calibration points */
for (i = 0; i < NUM_TOUCH_POINTS; i++) {
draw_calibration_point(&gs_calibration_points[i].panel);
/* Wait for touch & end of conversion */
rtouch_wait_pressed();
rtouch_get_raw_point(&x, &y);
gs_calibration_points[i].raw.x = x;
gs_calibration_points[i].raw.y = y;
clear_calibration_point(&gs_calibration_points[i].panel);
/* Wait for contact loss */
rtouch_wait_released();
}
/* Check if the points acceptable */
if (rtouch_compute_calibration((rtouch_calibration_point_t *) &gs_calibration_points) == 0) {
for (i=0;i<NUM_TOUCH_POINTS;i++) {
g_demo_parameters.calib_points[i].raw.x = gs_calibration_points[i].raw.x;
g_demo_parameters.calib_points[i].raw.y = gs_calibration_points[i].raw.y;
}
/* Commit changes to the parameter area */
demo_parameters_commit_changes();
/* Display calibration done string */
gfx_draw_string_aligned(string_calib_done,
gfx_get_width() / 2, 130, &sysfont,
GFX_COLOR_WHITE, TXTCOLOR,
TEXT_POS_CENTER, TEXT_ALIGN_LEFT);
return 0;
} else {
/* Clear instruction string first */
gfx_draw_string_aligned(string_calib_instruction,
gfx_get_width() / 2, 190, &sysfont,
GFX_COLOR_WHITE, GFX_COLOR_WHITE,
TEXT_POS_CENTER, TEXT_ALIGN_LEFT);
/* Show up failed string */
gfx_draw_string_aligned(string_calib_failed,
gfx_get_width() / 2, 100, &sysfont,
GFX_COLOR_WHITE, TXTCOLOR,
TEXT_POS_CENTER, TEXT_ALIGN_LEFT);
/* Display retry string */
gfx_draw_string_aligned(string_calib_retry,
gfx_get_width() / 2, 190, &sysfont,
GFX_COLOR_WHITE, TXTCOLOR,
TEXT_POS_CENTER, TEXT_ALIGN_LEFT);
/* Wait for contact loss */
rtouch_wait_released();
return 1;
}
}
