C++ (Cpp) channel_allocated_set示例

示例#1

文件： nrf_drv_ppi.c 项目： Archcady/mbed-os

uint32_t nrf_drv_ppi_channel_alloc(nrf_ppi_channel_t * p_channel)
{
    uint32_t err_code = NRF_SUCCESS;
    nrf_ppi_channel_t channel;
    uint32_t mask = 0;

    err_code = NRF_ERROR_NO_MEM;

    mask = NRF_PPI_PROG_APP_CHANNELS_MASK;
    for (channel = NRF_PPI_CHANNEL0; mask != 0; mask &= ~nrf_drv_ppi_channel_to_mask(channel), channel++)
    {
        CRITICAL_REGION_ENTER();
        if ((mask & nrf_drv_ppi_channel_to_mask(channel)) && (!is_allocated_channel(channel)))
        {
            channel_allocated_set(channel);
            *p_channel = channel;
            err_code   = NRF_SUCCESS;
        }
        CRITICAL_REGION_EXIT();
        if (err_code == NRF_SUCCESS)
        {
            NRF_LOG_INFO("Allocated channel: %d.\r\n", channel);
            break;
        }
    }

    NRF_LOG_INFO("Function: %s, error code: %s.\r\n", (uint32_t)__func__, (uint32_t)ERR_TO_STR(err_code));
    return err_code;
}

示例#2

文件： nrf_drv_ppi.c 项目： BLEHexapod/nrf_sdk

uint32_t nrf_drv_ppi_channel_alloc(nrf_ppi_channel_t * p_channel)
{
    uint32_t err_code;
    nrf_ppi_channel_t channel;
    uint32_t mask = 0;

    err_code = NRF_ERROR_NO_MEM;

    mask = NRF_PPI_PROG_APP_CHANNELS_MASK;
    for (channel = NRF_PPI_CHANNEL0; mask != 0; mask &= ~nrf_drv_ppi_channel_to_mask(channel), channel++)
    {
        CRITICAL_REGION_ENTER();
        if ((mask & nrf_drv_ppi_channel_to_mask(channel)) && (!is_allocated_channel(channel)))
        {
            channel_allocated_set(channel);
            *p_channel = channel;
            err_code   = NRF_SUCCESS;
        }
        CRITICAL_REGION_EXIT();
        if (err_code == NRF_SUCCESS)
        {
            break;
        }
    }

    return err_code;
}