C++ (Cpp) EXTI_MODE_BB Examples

Example #1

File: exti.c Project: aitjcize/micropython

void exti_disable(uint line) {
    if (line >= EXTI_NUM_VECTORS) {
        return;
    }
    // Since manipulating IMR/EMR is a read-modify-write, and we want this to
    // be atomic, we use the bit-band area to just affect the bit we're
    // interested in.
    EXTI_MODE_BB(EXTI_Mode_Interrupt, line) = 0;
    EXTI_MODE_BB(EXTI_Mode_Event, line) = 0;
}

Example #2

File: exti.c Project: aitjcize/micropython

void exti_enable(uint line) {
    if (line >= EXTI_NUM_VECTORS) {
        return;
    }
    // Since manipulating IMR/EMR is a read-modify-write, and we want this to
    // be atomic, we use the bit-band area to just affect the bit we're
    // interested in.
    EXTI_MODE_BB(exti_vector[line].mode, line) = 1;
}

Example #3

File: extint.c Project: nauta42/micropython

void extint_disable(uint line) {
    if (line >= EXTI_NUM_VECTORS) {
        return;
    }

    #if defined(MCU_SERIES_F7)
    // The Cortex-M7 doesn't have bitband support.
    mp_uint_t irq_state = disable_irq();
    EXTI->IMR &= ~(1 << line);
    EXTI->EMR &= ~(1 << line);
    enable_irq(irq_state);
    #else
    // Since manipulating IMR/EMR is a read-modify-write, and we want this to
    // be atomic, we use the bit-band area to just affect the bit we're
    // interested in.
    EXTI_MODE_BB(EXTI_Mode_Interrupt, line) = 0;
    EXTI_MODE_BB(EXTI_Mode_Event, line) = 0;
    #endif
}

Example #4

File: extint.c Project: lbattraw/micropython

void extint_enable(uint line) {
    if (line >= EXTI_NUM_VECTORS) {
        return;
    }
    #if defined(STM32F7)
    // The Cortex-M7 doesn't have bitband support.
    mp_uint_t irq_state = disable_irq();
    if (pyb_extint_mode[line] == EXTI_Mode_Interrupt) {
        EXTI->IMR |= (1 << line);
    } else {
        EXTI->EMR |= (1 << line);
    }
    enable_irq(irq_state);
    #else
    // Since manipulating IMR/EMR is a read-modify-write, and we want this to
    // be atomic, we use the bit-band area to just affect the bit we're
    // interested in.
    EXTI_MODE_BB(pyb_extint_mode[line], line) = 1;
    #endif
}