C++ (Cpp) sd_mmc_spi_stop_read_block 예제들

예제 #1

파일: sd_mmc_spi.c 프로젝트: AloyseTech/Oleduino-Color

bool sd_mmc_spi_read_word(uint32_t* value)
{
	uint16_t dummy = 0xFF;

	sd_mmc_spi_err = SD_MMC_SPI_NO_ERR;
	Assert(sd_mmc_spi_nb_block >
			(sd_mmc_spi_transfert_pos / sd_mmc_spi_block_size));

	if (!(sd_mmc_spi_transfert_pos % sd_mmc_spi_block_size)) {
		// New block
		if (!sd_mmc_spi_start_read_block()) {
			return false;
		}
	}
	// Read data
	spi_read_buffer_wait(&sd_mmc_master, (uint8_t *)&value, 4,
			dummy);
	*value = le32_to_cpu(*value);
	sd_mmc_spi_transfert_pos += 4;

	if (!(sd_mmc_spi_transfert_pos % sd_mmc_spi_block_size)) {
		// End of block
		sd_mmc_spi_stop_read_block();
	}
	return true;
}

예제 #2

bool sd_mmc_spi_start_read_blocks(void *dest, uint16_t nb_block)
{
	uint32_t pos;

	sd_mmc_spi_err = SD_MMC_SPI_NO_ERR;
	pos = 0;
	while (nb_block--) {
		Assert(sd_mmc_spi_nb_block >
				(sd_mmc_spi_transfert_pos / sd_mmc_spi_block_size));
		if (!sd_mmc_spi_start_read_block()) {
			return false;
		}

		// Read block
		sspi_read_packet(&((uint8_t*)dest)[pos], sd_mmc_spi_block_size);
		pos += sd_mmc_spi_block_size;
		sd_mmc_spi_transfert_pos += sd_mmc_spi_block_size;

		sd_mmc_spi_stop_read_block();
	}
	return true;
}

예제 #3

bool sd_mmc_spi_read_word(uint32_t* value)
{
	sd_mmc_spi_err = SD_MMC_SPI_NO_ERR;
	Assert(sd_mmc_spi_nb_block >
			(sd_mmc_spi_transfert_pos / sd_mmc_spi_block_size));

	if (!(sd_mmc_spi_transfert_pos % sd_mmc_spi_block_size)) {
		// New block
		if (!sd_mmc_spi_start_read_block()) {
			return false;
		}
	}
	// Read data
	sspi_read_packet((uint8_t*)value, 4);
	*value = le32_to_cpu(*value);
	sd_mmc_spi_transfert_pos += 4;

	if (!(sd_mmc_spi_transfert_pos % sd_mmc_spi_block_size)) {
		// End of block
		sd_mmc_spi_stop_read_block();
	}
	return true;
}

예제 #4

파일: sd_mmc_spi.c 프로젝트: AloyseTech/Oleduino-Color

bool sd_mmc_spi_start_read_blocks(void *dest, uint16_t nb_block)
{
	uint32_t pos;
	uint16_t dummy = 0xFF;

	sd_mmc_spi_err = SD_MMC_SPI_NO_ERR;
	pos = 0;
	while (nb_block--) {
		Assert(sd_mmc_spi_nb_block >
				(sd_mmc_spi_transfert_pos / sd_mmc_spi_block_size));
		if (!sd_mmc_spi_start_read_block()) {
			return false;
		}

		// Read block
		spi_read_buffer_wait(&sd_mmc_master, &((uint8_t*)dest)[pos],
			sd_mmc_spi_block_size, dummy);
		pos += sd_mmc_spi_block_size;
		sd_mmc_spi_transfert_pos += sd_mmc_spi_block_size;

		sd_mmc_spi_stop_read_block();
	}
	return true;
}