RE: How to start Zephyr bootloader (MCUBOOT) without XTAL 32768Hz?

qwertynoon — Thu, 27 Jan 2022 13:33:06 GMT

Thanks you a lot!!!!

You save me!!!

CONFIG_BOARD_ENABLE_DCDC=n
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=n
CONFIG_MULTITHREADING=y

I included this in bootloader\mcuboot\boot\zephyr\prf.conf

and now it works!!!

There is one more issue. I use PPI for ADC and GPIO pending. When I connect and then disconnect - nrf52840 not advertise until reset the SoC.

        IRQ_CONNECT(DT_IRQN(DT_NODELABEL(adc)),
		    DT_IRQ(DT_NODELABEL(adc), priority),
		    nrfx_saadc_irq_handler, NULL, 0);

        adc_configure();
        ppi_init();
        timer_init();

        IRQ_CONNECT(DT_IRQN(DT_NODELABEL(gpiote)),
		    DT_IRQ(DT_NODELABEL(gpiote), priority),
		    nrfx_isr, nrfx_gpiote_irq_handler, 0);
		    
        nrfx_gpiote_init(NRFX_GPIOTE_DEFAULT_CONFIG_IRQ_PRIORITY);

    nrf_gpio_cfg_output(DO_OUTPUT_0); 
    nrf_gpio_cfg_output(DO_OUTPUT_1);
    nrf_gpio_cfg_output(DO_OUTPUT_2); 
    nrf_gpio_cfg_output(DO_OUTPUT_3);
    nrf_gpio_cfg_output(DO_OUTPUT_4); 
    nrf_gpio_cfg_output(DO_OUTPUT_5);
    nrf_gpio_cfg_output(DO_OUTPUT_6); 
    nrf_gpio_cfg_output(DO_OUTPUT_7);
    nrf_gpio_cfg_output(LED_PIN_G); 

    nrf_gpio_cfg_input(DI_INPUT_0, NRF_GPIO_PIN_PULLUP); 
    nrf_gpio_cfg_input(DI_INPUT_1, NRF_GPIO_PIN_PULLUP); 
    nrf_gpio_cfg_input(DI_INPUT_2, NRF_GPIO_PIN_PULLUP); 
    nrf_gpio_cfg_input(DI_INPUT_3, NRF_GPIO_PIN_PULLUP); 
    nrf_gpio_cfg_input(DI_INPUT_4, NRF_GPIO_PIN_PULLUP); 
    nrf_gpio_cfg_input(DI_INPUT_5, NRF_GPIO_PIN_PULLUP);  
    nrf_gpio_cfg_input(DI_INPUT_6, NRF_GPIO_PIN_PULLUP); 
    nrf_gpio_cfg_input(DI_INPUT_7, NRF_GPIO_PIN_PULLUP); 
    nrf_gpio_cfg_input(DI_INPUT_8, NRF_GPIO_PIN_PULLUP); 
    nrf_gpio_cfg_input(DI_INPUT_9, NRF_GPIO_PIN_PULLUP); 
    nrf_gpio_cfg_input(DI_INPUT_10, NRF_GPIO_PIN_PULLUP); 									

    nrfx_gpiote_in_config_t cfg_wdt = NRFX_GPIOTE_CONFIG_IN_SENSE_LOTOHI(false);
    cfg_wdt.pull = NRF_GPIO_PIN_PULLDOWN;
    nrfx_gpiote_in_init(TIM_WAKE, &cfg_wdt, evt_handler1);
    nrfx_gpiote_in_event_enable(TIM_WAKE, true);

    nrfx_gpiote_in_config_t inConfig = NRFX_GPIOTE_CONFIG_IN_SENSE_TOGGLE(false);		
    inConfig.pull = NRF_GPIO_PIN_PULLUP;					

    nrfx_gpiote_in_config_t rtcConfig = NRFX_GPIOTE_CONFIG_IN_SENSE_LOTOHI(false);		
    rtcConfig.pull  = NRF_GPIO_PIN_PULLUP;			

    nrfx_gpiote_in_init(RTC_PIN,     &rtcConfig,  evt_handler2);

    nrfx_gpiote_in_event_enable(RTC_PIN,     true);

P.S. Do I have to create a new ticket?

RE: How to start Zephyr bootloader (MCUBOOT) without XTAL 32768Hz?

Håkon Alseth — Thu, 27 Jan 2022 08:53:12 GMT

Hi,

This driver requires the use of multithreading, which enables certain kernel APIs. Could you try adding this to the mcuboot configuration?

CONFIG_MULTITHREADING=y

Kind regards,

Håkon