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Merge branch 'feat/adapt_spi_lcd_to_lvgl_v5.2' into 'release/v5.2'

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docs: update programming guide to also support quad spi lcd (v5.2)

See merge request espressif/esp-idf!34037
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morris
2024-10-10 10:31:52 +08:00
parent 95ac2b18e9 941d389f28
commit c12e684a29
1 changed files with 4 additions and 2 deletions
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6
docs/en/api-reference/peripherals/lcd.rst
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@ -27,14 +27,16 @@ SPI Interfaced LCD
#. Create an SPI bus. Please refer to :doc:`SPI Master API doc </api-reference/peripherals/spi_master>` for more details. #. Create an SPI bus. Please refer to :doc:`SPI Master API doc </api-reference/peripherals/spi_master>` for more details.
Currently the driver supports SPI, Quad SPI and Octal SPI (simulate Intel 8080 timing) modes.
.. code-block:: c .. code-block:: c
spi_bus_config_t buscfg = { spi_bus_config_t buscfg = {
.sclk_io_num = EXAMPLE_PIN_NUM_SCLK, .sclk_io_num = EXAMPLE_PIN_NUM_SCLK,
.mosi_io_num = EXAMPLE_PIN_NUM_MOSI, .mosi_io_num = EXAMPLE_PIN_NUM_MOSI,
.miso_io_num = EXAMPLE_PIN_NUM_MISO, .miso_io_num = EXAMPLE_PIN_NUM_MISO,
.quadwp_io_num = -1, // Quad SPI LCD driver is not yet supported .quadwp_io_num = -1,
.quadhd_io_num = -1, // Quad SPI LCD driver is not yet supported .quadhd_io_num = -1,
.max_transfer_sz = EXAMPLE_LCD_H_RES * 80 * sizeof(uint16_t), // transfer 80 lines of pixels (assume pixel is RGB565) at most in one SPI transaction .max_transfer_sz = EXAMPLE_LCD_H_RES * 80 * sizeof(uint16_t), // transfer 80 lines of pixels (assume pixel is RGB565) at most in one SPI transaction
}; };
ESP_ERROR_CHECK(spi_bus_initialize(LCD_HOST, &buscfg, SPI_DMA_CH_AUTO)); // Enable the DMA feature ESP_ERROR_CHECK(spi_bus_initialize(LCD_HOST, &buscfg, SPI_DMA_CH_AUTO)); // Enable the DMA feature