/**
* \brief Wait for button press and release
*
* Waits for the button connected to \ref BUTTON_PIN to be pressed and released.
* Debouncing is done with an approximate 20 ms delay after both the press and
* the release.
*/
static void wait_for_button(void)
{
do {} while (ioport_pin_is_high(BUTTON_PIN));
mdelay(20);
do {} while (ioport_pin_is_low(BUTTON_PIN));
mdelay(20);
}
static void wait_for_btn_press(void)
{
do { } while (ioport_pin_is_high(NEXT_BUTTON));
delay_ms(5);
do { } while (ioport_pin_is_low(NEXT_BUTTON));
delay_ms(5);
}
/**
* \brief Returns the SW1 state
*
* \return Exit is requested if true
*/
static bool main_introduction_is_exist(void)
{
if (ioport_pin_is_low(GPIO_PUSH_BUTTON_1)) {
return true;
}
return false;
}
void VBusMon_check(void)
{
static volatile uint8_t r = 0;
if(1==r) return;
r = 1;
if(ioport_pin_is_low(USB_PROBE_PIN)) {
vbus_action(false);
udc_stop();
OSC.DFLLCTRL = 2;
DFLLRC32M.CTRL = 1;
statusled_blink(2);
debug_string(VERBOSE,PSTR("[EVENT] USB off\r\n"),true);
} else {
OSC.DFLLCTRL = 4;
DFLLRC32M.CTRL = 1;
udc_start();
vbus_action(true);
statusled_blink(2);
debug_string(VERBOSE,PSTR("[EVENT] USB on\r\n"),true);
}
r=0;
}
void app_usb_task(void)
{
static bool sw0_released = true;
static bool usb_running = false;
static bool cdc_running = false;
static bool toggle = true;
if (sw0_released && ioport_pin_is_low(GPIO_PUSH_BUTTON_0)) {
/* A new press has been done */
sw0_released = false;
/* Switch USB state */
if (usb_running) {
udc_stop();
gfx_mono_draw_filled_rect(DISPLAY_USB_STA_POS_X,
DISPLAY_USB_STA_POS_Y,
DISPLAY_USB_STA_SIZE_X,
DISPLAY_USB_STA_SIZE_Y,
GFX_PIXEL_CLR);
app_microsd_start();
} else {
/* Stop FatFS on uSD card if enabled */
app_microsd_stop();
stdio_usb_init(); /* Start USB */
gfx_mono_generic_put_bitmap(&bitmap_usb,
DISPLAY_USB_STA_POS_X,
DISPLAY_USB_STA_POS_Y);
}
usb_running = !usb_running;
cdc_running = true;
} else {
/* Wait switch release */
sw0_released = ioport_pin_is_high(GPIO_PUSH_BUTTON_0);
}
if (!usb_running) {
return;
}
/* USB MSC task */
while (udi_msc_process_trans()) {
}
if (app_usb_cdc_open && !cdc_running) {
printf("\x0CSensor data logs:\r\n");
cdc_running = true;
}
if (!app_usb_cdc_open && cdc_running) {
cdc_running = false;
}
/* Toggle USB icon */
if ((app_usb_cdc_open && app_usb_rec_toggle) ||
(toggle && app_usb_rec_toggle)) {
app_usb_rec_toggle = false;
toggle = !toggle;
gfx_mono_draw_rect(DISPLAY_USB_STACDC_POS_X,
DISPLAY_USB_STACDC_POS_Y,
DISPLAY_USB_STACDC_SIZE_X,
DISPLAY_USB_STACDC_SIZE_Y,
toggle ? GFX_PIXEL_SET : GFX_PIXEL_CLR);
}
}
