nrf52840 example work with boot keyboard
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5f6cd49031
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546f2a1165
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@ -106,10 +106,29 @@ void usb_hid_task(void)
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{
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{
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if ( !tud_hid_keyboard_busy() )
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if ( !tud_hid_keyboard_busy() )
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{
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{
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static bool toggle = false; // send either A or B
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// Poll every 10ms
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static tu_timeout_t tm = { .start = 0, .interval = 10 };
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tud_hid_keyboard_send_char( toggle ? 'A' : 'B' );
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if ( !tu_timeout_expired(&tm) ) return; // not enough time
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toggle = !toggle;
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tu_timeout_reset(&tm);
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uint32_t bt = board_buttons();
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if ( bt )
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{
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uint8_t keycode[6] = { 0 };
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for(uint8_t i=0; i < 6; i++)
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{
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if ( bt & (1 << i) ) keycode[i] = HID_KEY_A + i;
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}
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tud_hid_keyboard_send_keycode(0, keycode);
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}else
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{
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// Null means empty (all zeroes) report
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tud_hid_keyboard_send_report(NULL);
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}
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}
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}
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if ( !tud_hid_mouse_busy() )
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if ( !tud_hid_mouse_busy() )
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@ -143,15 +162,11 @@ void tud_cdc_rx_cb(uint8_t itf)
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//--------------------------------------------------------------------+
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//--------------------------------------------------------------------+
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void led_blinking_task(void)
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void led_blinking_task(void)
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{
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{
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enum { BLINK_INTEVAL = 1000 };
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static tu_timeout_t tm = { .start = 0, .interval = 1000 }; // Blink every 1000 ms
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static bool led_state = false;
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static bool led_state = false;
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static uint32_t last_blink = 0;
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// not enough time
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if ( !tu_timeout_expired(&tm) ) return; // not enough time
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if ( last_blink + BLINK_INTEVAL > tusb_hal_millis() ) return;
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tu_timeout_reset(&tm);
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last_blink += BLINK_INTEVAL;
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board_led_control(BOARD_LED0, led_state);
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board_led_control(BOARD_LED0, led_state);
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led_state = 1 - led_state; // toggle
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led_state = 1 - led_state; // toggle
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@ -150,7 +150,6 @@ static inline void board_led_off(uint32_t led_id)
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board_led_control(led_id, false);
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board_led_control(led_id, false);
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}
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}
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/** \brief Get the current state of the buttons on the board
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/** \brief Get the current state of the buttons on the board
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* \return Bitmask where a '1' means active (pressed), a '0' means inactive.
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* \return Bitmask where a '1' means active (pressed), a '0' means inactive.
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*/
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*/
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@ -44,10 +44,16 @@
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/* MACRO TYPEDEF CONSTANT ENUM
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/* MACRO TYPEDEF CONSTANT ENUM
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*------------------------------------------------------------------*/
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*------------------------------------------------------------------*/
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#define LED_1 13
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#define LED_1 13
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#define LED_STATE_ON 0
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#define LED_STATE_ON 0
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#define LED_STATE_OFF (1-LED_STATE_ON)
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#define LED_STATE_OFF (1-LED_STATE_ON)
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uint8_t _button_pins[] = { 11, 12, 24, 25 };
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#define BOARD_BUTTON_COUNT arrcount_(_button_pins)
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/*------------------------------------------------------------------*/
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/*------------------------------------------------------------------*/
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/* TUSB HAL MILLISECOND
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/* TUSB HAL MILLISECOND
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*------------------------------------------------------------------*/
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*------------------------------------------------------------------*/
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@ -60,44 +66,72 @@ void SysTick_Handler (void)
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uint32_t tusb_hal_millis(void)
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uint32_t tusb_hal_millis(void)
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{
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{
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//#define tick2ms(tck) ( ( ((uint64_t)(tck)) * 1000) / configTICK_RATE_HZ )
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//return tick2ms( app_timer_cnt_get() );
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return board_tick2ms(system_ticks);
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return board_tick2ms(system_ticks);
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}
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}
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/*------------------------------------------------------------------*/
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/*------------------------------------------------------------------*/
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/* BOARD API
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/* BOARD API
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*------------------------------------------------------------------*/
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*------------------------------------------------------------------*/
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/* tinyusb function that handles power event (detected, ready, removed)
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* We must call it within SD's SOC event handler, or set it as power event handler if SD is not enabled.
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*/
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extern void tusb_hal_nrf_power_event(uint32_t event);
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void board_init(void)
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void board_init(void)
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{
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{
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// Config clock source: XTAL or RC in sdk_config.h
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// Config clock source: XTAL or RC in sdk_config.h
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NRF_CLOCK->LFCLKSRC = (uint32_t)((CLOCK_LFCLKSRC_SRC_Xtal << CLOCK_LFCLKSRC_SRC_Pos) & CLOCK_LFCLKSRC_SRC_Msk);
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NRF_CLOCK->LFCLKSRC = (uint32_t)((CLOCK_LFCLKSRC_SRC_Xtal << CLOCK_LFCLKSRC_SRC_Pos) & CLOCK_LFCLKSRC_SRC_Msk);
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NRF_CLOCK->TASKS_LFCLKSTART = 1UL;
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NRF_CLOCK->TASKS_LFCLKSTART = 1UL;
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// LED
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nrf_gpio_cfg_output(LED_1);
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nrf_gpio_cfg_output(LED_1);
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#ifdef SOFTDEVICE_PRESENT
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// Button
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// TODO support Softdevice config
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for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++) nrf_gpio_cfg_input(_button_pins[i], NRF_GPIO_PIN_PULLUP);
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#else
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// Softdevice is not present, init power module and register tusb power event function
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// for vusb detect, ready, removed
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extern void tusb_hal_nrf_power_event(uint32_t event);
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// Power module init
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const nrfx_power_config_t pwr_cfg = { 0 };
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nrfx_power_init(&pwr_cfg);
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// USB Power detection
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const nrfx_power_usbevt_config_t config = { .handler = (nrfx_power_usb_event_handler_t) tusb_hal_nrf_power_event };
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nrfx_power_usbevt_init(&config);
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nrfx_power_usbevt_enable();
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#endif
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// Tick init
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// Tick init
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SysTick_Config(SystemCoreClock/1000);
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SysTick_Config(SystemCoreClock/1000);
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NVIC_EnableIRQ(SysTick_IRQn);
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NVIC_EnableIRQ(SysTick_IRQn);
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// USB power may already be ready at this time -> no event generated
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// We need to invoke the handler based on the status initially
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uint32_t usb_reg;
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#ifdef SOFTDEVICE_PRESENT
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uint8_t sd_en = false;
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(void) sd_softdevice_is_enabled(&sd_en);
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if ( sd_en ) {
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sd_power_usbdetected_enable(true);
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sd_power_usbpwrrdy_enable(true);
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sd_power_usbremoved_enable(true);
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sd_power_usbregstatus_get(&usb_reg);
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}else
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#else
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{
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// Power module init
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const nrfx_power_config_t pwr_cfg = { 0 };
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nrfx_power_init(&pwr_cfg);
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// Register tusb function as USB power handler
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const nrfx_power_usbevt_config_t config = { .handler = (nrfx_power_usb_event_handler_t) tusb_hal_nrf_power_event };
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nrfx_power_usbevt_init(&config);
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nrfx_power_usbevt_enable();
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usb_reg = NRF_POWER->USBREGSTATUS;
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}
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#endif
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if ( usb_reg & POWER_USBREGSTATUS_VBUSDETECT_Msk ) {
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tusb_hal_nrf_power_event(NRFX_POWER_USB_EVT_DETECTED);
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}
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if ( usb_reg & POWER_USBREGSTATUS_OUTPUTRDY_Msk ) {
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tusb_hal_nrf_power_event(NRFX_POWER_USB_EVT_READY);
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}
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}
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}
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void board_led_control(uint32_t led_id, bool state)
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void board_led_control(uint32_t led_id, bool state)
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@ -108,7 +142,15 @@ void board_led_control(uint32_t led_id, bool state)
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uint32_t board_buttons(void)
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uint32_t board_buttons(void)
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{
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{
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return 0;
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uint32_t ret = 0;
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for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++)
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{
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// button is active LOW
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ret |= ( nrf_gpio_pin_read(_button_pins[i]) ? 0 : BIT_(i));
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}
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return ret;
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}
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}
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uint8_t board_uart_getchar(void)
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uint8_t board_uart_getchar(void)
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