C++ (Cpp) spi_get_peripheral_select_decode_setting示例

示例#1

文件： spi_master.c 项目： bearxiong99/QUAD32

/**
 * \brief Select the given device on the SPI bus.
 *
 * Set device specific setting and call board chip select.
 *
 * \param p_spi   Base address of the SPI instance.
 * \param device  SPI device.
 *
 */
void spi_select_device(Spi *p_spi, struct spi_device *device)
{
    if (spi_get_peripheral_select_decode_setting(p_spi)) {
        if (device->id < MAX_NUM_WITH_DECODER) {
            spi_set_peripheral_chip_select_value(p_spi, device->id);
        }
    } else {
        if (device->id < MAX_NUM_WITHOUT_DECODER) {
            spi_set_peripheral_chip_select_value(p_spi, (~(1 << device->id)));
        }
    }
}

示例#2

文件： spi_master.c 项目： dcnewman/CoreNG-RADDS

/**
 * \brief Select the given device on the SPI bus.
 *
 * Set device specific setting and call board chip select.
 *
 * \param p_spi   Base address of the SPI instance.
 * \param device  SPI device.
 *
 */
void spi_select_device(Spi *p_spi, const struct spi_device *device)
{
	if (spi_get_peripheral_select_decode_setting(p_spi)) {
		if (device->id < MAX_NUM_WITH_DECODER) {
			spi_set_peripheral_chip_select_value(p_spi, device->id);
		}
	} else {
		if (device->id < MAX_NUM_WITHOUT_DECODER) {
			spi_set_peripheral_chip_select_value(p_spi, (~(1 << device->id)));
		}
    }

	// Enable the CS line
	digitalWrite(device->cs, LOW);
}