Exemple #1
0
int main(void)
{
    I2cInit( &I2c, I2C_SCL, I2C_SDA );

    GpioInit( &UsbDetect, USB_ON, PIN_INPUT, PIN_PUSH_PULL, PIN_NO_PULL, 0 );
    GpioInit( &DcDcEnable, DC_DC_EN, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 1 );

    GpioInit( &RadioPushButton, RADIO_PUSH_BUTTON, PIN_INPUT, PIN_PUSH_PULL, PIN_NO_PULL, 1 );
    
    GpioInit( &Led1, LED_1, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 1 );
    GpioInit( &Led2, LED_2, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 1 );
    GpioInit( &Led3, LED_3, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 1 );
    GpioInit( &Led4, LED_4, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 1 );

    if( GpioRead( &RadioPushButton ) == 0 )
    { /* Test if user code is programmed starting from address 0x8003000 */
        if( ( ( *( volatile uint32_t* )ApplicationAddress ) & 0x2FFE0000 ) == 0x20000000 )
        { /* Jump to user application */

            JumpAddress = *( volatile uint32_t* )( ApplicationAddress + 4 );
            Jump_To_Application = ( pFunction ) JumpAddress;
            /* Initialize user application's Stack Pointer */
            __set_MSP( *( volatile uint32_t* ) ApplicationAddress );
            Jump_To_Application( );
        }
    } /* Otherwise enters DFU mode to allow user to program his application */

    /* Enter DFU mode */
    DeviceState = STATE_dfuERROR;
    DeviceStatus[0] = STATUS_ERRFIRMWARE;
    DeviceStatus[4] = DeviceState;

    UsbMcuInit( );

    /* Main loop */
    while (1)
    {
        GpioWrite( &Led1, 0 );
        GpioWrite( &Led2, 0 );
        GpioWrite( &Led3, 0 );
        GpioWrite( &Led4, 0 );
        DelayLoop( 500 );
        GpioWrite( &Led1, 1 );
        GpioWrite( &Led2, 1 );
        GpioWrite( &Led3, 1 );
        GpioWrite( &Led4, 1 );
        DelayLoop( 500 );
    }
}
Exemple #2
0
void BoardInitMcu( void )
{
    if( McuInitialized == false )
    {
#if defined( USE_BOOTLOADER )
        // Set the Vector Table base location at 0x3000
        NVIC_SetVectorTable( NVIC_VectTab_FLASH, 0x3000 );
#endif
        // We use IRQ priority group 4 for the entire project
        // When setting the IRQ, only the preemption priority is used
        NVIC_PriorityGroupConfig( NVIC_PriorityGroup_4 );

        // Disable Systick
        SysTick->CTRL  &= ~SysTick_CTRL_TICKINT_Msk;    // Systick IRQ off 
        SCB->ICSR |= SCB_ICSR_PENDSTCLR_Msk;            // Clear SysTick Exception pending flag

        I2cInit( &I2c, I2C_SCL, I2C_SDA );
        AdcInit( &Adc, BAT_LEVEL );

        SpiInit( &SX1272.Spi, RADIO_MOSI, RADIO_MISO, RADIO_SCLK, NC );
        SX1272IoInit( );

#if defined( USE_DEBUG_PINS )
        GpioInit( &DbgPin1, CON_EXT_1, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 0 );
        GpioInit( &DbgPin2, CON_EXT_3, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 0 );
        GpioInit( &DbgPin3, CON_EXT_7, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 0 );
        GpioInit( &DbgPin4, CON_EXT_9, PIN_OUTPUT, PIN_PUSH_PULL, PIN_NO_PULL, 0 );
#endif

        BoardUnusedIoInit( );

#if defined( USE_USB_CDC )
        UsbMcuInit( );
        UartInit( &UartUsb, UART_USB_CDC, NC, NC );
        UartConfig( &UartUsb, RX_TX, 115200, UART_8_BIT, UART_1_STOP_BIT, NO_PARITY, NO_FLOW_CTRL );
#endif

#ifdef LOW_POWER_MODE_ENABLE
        RtcInit( );
#else
        TimerHwInit( );
#endif
        McuInitialized = true;
    }
}