kopia lustrzana https://github.com/espressif/esp-idf
lcd: spi lcd support transmit lsb first
Closes https://github.com/espressif/esp-idf/issues/8790pull/8934/head
rodzic
2f1393ad53
commit
5e49369a2c
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@ -98,7 +98,8 @@ typedef struct {
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unsigned int dc_as_cmd_phase: 1; /*!< D/C line value is encoded into SPI transaction command phase */
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unsigned int dc_low_on_data: 1; /*!< If this flag is enabled, DC line = 0 means transfer data, DC line = 1 means transfer command; vice versa */
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unsigned int octal_mode: 1; /*!< transmit with octal mode (8 data lines), this mode is used to simulate Intel 8080 timing */
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} flags;
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unsigned int lsb_first: 1; /*!< transmit LSB bit first */
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} flags; /*!< Extra flags to fine-tune the SPI device */
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} esp_lcd_panel_io_spi_config_t;
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/**
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@ -65,7 +65,8 @@ esp_err_t esp_lcd_new_panel_io_spi(esp_lcd_spi_bus_handle_t bus, const esp_lcd_p
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ESP_GOTO_ON_FALSE(spi_panel_io, ESP_ERR_NO_MEM, err, TAG, "no mem for spi panel io");
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spi_device_interface_config_t devcfg = {
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.flags = SPI_DEVICE_HALFDUPLEX, // only use TX path, so half duplex is enough
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// currently the driver only supports TX path, so half duplex is enough
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.flags = SPI_DEVICE_HALFDUPLEX | (io_config->flags.lsb_first ? SPI_DEVICE_TXBIT_LSBFIRST : 0),
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.clock_speed_hz = io_config->pclk_hz,
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.mode = io_config->spi_mode,
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.spics_io_num = io_config->cs_gpio_num,
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