C++ (Cpp) hw_cfg_pin Examples

Example #1

File: debug.c Project: tuddman/lmic

void debug_init () {
    // configure LED pin as output
    hw_cfg_pin(LED_PORT, LED_PIN, GPIOCFG_MODE_OUT | GPIOCFG_OSPEED_40MHz | GPIOCFG_OTYPE_PUPD | GPIOCFG_PUPD_PUP);
    debug_led(0);

    // configure USART1 (115200/8N1, tx-only)
    RCC->APB2ENR |= RCC_APB2ENR_USART1EN;
    hw_cfg_pin(USART_TX_PORT, USART_TX_PIN, GPIOCFG_MODE_ALT|GPIOCFG_OSPEED_40MHz|GPIOCFG_OTYPE_PUPD|GPIOCFG_PUPD_PUP|GPIO_AF_USART1);
    USART1->BRR = 277; // 115200
    USART1->CR1 = USART_CR1_UE | USART_CR1_TE; // usart+transmitter enable

    // print banner
    debug_str("\r\n============== DEBUG STARTED ==============\r\n");
}

Example #2

File: sensor.c Project: HorseMa/lmic

// use DIP1 as sensor value
void initsensor (osjobcb_t callback) {
    // configure input
    RCC->AHBENR  |= RCC_AHBENR_GPIOBEN; // clock enable port B
    hw_cfg_pin(GPIOx(INP_PORT), INP_PIN, GPIOCFG_MODE_INP | GPIOCFG_OSPEED_40MHz | GPIOCFG_OTYPE_OPEN);
    hw_cfg_extirq(INP_PORT, INP_PIN, GPIO_IRQ_CHANGE);
    // save application callback
    irqjob.func = callback;
}

Example #3

File: sensor.c Project: tuddman/lmic

// use PB12 (DIP switch 1) as sensor value
void initsensor () {
    RCC->AHBENR  |= RCC_AHBENR_GPIOBEN; // clock enable port B
    hw_cfg_pin(GPIOB, 12, GPIOCFG_MODE_INP | GPIOCFG_OSPEED_40MHz | GPIOCFG_OTYPE_OPEN); // PB12
}