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fix(spi): remove idle compensation for data output inversion

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This commit is contained in:
Steven (Yang Minghui)
2026-09-15 21:11:18 +08:00
parent 07ec3b8ce4
commit 6b52cfc431
3 changed files with 6 additions and 17 deletions
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components/esp_driver_spi/include/driver/spi_common.h
+3 -4
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@@ -95,9 +95,8 @@ typedef spi_common_dma_t spi_dma_chan_t;
* delay, which may cause incorrect read for >40MHz speeds.
*
* @note Be advised that the slave driver does not use the quadwp/quadhd lines and fields in spi_bus_config_t referring to these lines will be ignored and can thus safely be left uninitialized.
* @note When `SPICOMMON_BUSFLAG_DATA_OUT_INV` is set in `flags`, all configured bus signals are routed through the GPIO matrix.
* @note On ESP32, `data_io_default_level` only supports 0. When
`SPICOMMON_BUSFLAG_DATA_OUT_INV` is set, the idle data level is also inverted.
* @note Setting `SPICOMMON_BUSFLAG_DATA_OUT_INV` routes all configured bus signals through GPIO matrix and inverts data output signals, including their idle levels.
* @note On ESP32, `data_io_default_level` only supports 0.
*/
typedef struct {
union {
@@ -126,7 +125,7 @@ typedef struct {
};
int iocfg[9]; ///< GPIO config in array format follow the above order.
};
bool data_io_default_level; ///< Output data IO default level when no transaction.
bool data_io_default_level; ///< Default level of output data signals when no transaction in progress.
int max_transfer_sz; ///< Maximum transfer size, in bytes. Defaults to 4092 if 0 when DMA enabled, or to hardware fifo length (usually 64 bytes) if DMA is disabled.
uint32_t dma_burst_size; ///< DMA data burst size in bytes. Only used when DMA is enabled. Set to 0 to use driver default. When non-zero, must be one of the chip-supported values (see GDMA driver or chip TRM). Ignored on chips that do not support configurable burst size.
uint32_t flags; ///< Abilities of bus to be checked by the driver. Or-ed value of ``SPICOMMON_BUSFLAG_*`` flags.