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Merge branch 'bugfix/spi_hd_rx' into 'master'

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fix(spi_dma_rx): add check to avoid using SPI half-duplex mode DMA with both MOSI and MISO phases.

See merge request !1111
This commit is contained in:
Ivan Grokhotkov
2017-08-28 17:36:58 +08:00
parent 82763a02af 2554f61f05
commit 3161854efb
3 changed files with 33 additions and 12 deletions
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2
components/driver/include/driver/spi_master.h
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@@ -78,7 +78,7 @@ struct spi_transaction_t {
///< <b>NOTE: this field, used to be "address" in ESP-IDF 2.1 and before, is re-written to be used in a new way in ESP-IDF3.0.</b>
///< - Example: write 0x123400 and address_bits=24 to send address of 0x12, 0x34, 0x00 (in previous version, you may have to write 0x12340000).
size_t length; ///< Total data length, in bits
size_t rxlength; ///< Total data length received, should be not greater than ``length`` in full-duplex mode. (0 defaults this to the value of ``length``)
size_t rxlength; ///< Total data length received, should be not greater than ``length`` in full-duplex mode (0 defaults this to the value of ``length``).
void *user; ///< User-defined variable. Can be used to store eg transaction ID.
union {
const void *tx_buffer; ///< Pointer to transmit buffer, or NULL for no MOSI phase