101 lines
4.5 KiB
Markdown
101 lines
4.5 KiB
Markdown
# Waveshare ESP32-S3-Touch-AMOLED-1.8 Display Support
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[](https://components.espressif.com/components/waveshare/esp_lcd_sh8601)
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Waveshare ESP32-S3-Touch-AMOLED-1.8 Display used QSPI
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| LCD controller | Communication interface | Component name | Link to datasheet |
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| :------------: |:-----------------------:| :------------: | :---------------------------------------------------------------------------: |
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| SH8601 | QSPI | esp_lcd_sh8601 | [PDF](https://dl.espressif.com/AE/esp-iot-solution/SH8601A0_DataSheet_Preliminary_V0.0_UCS__191107_1_.pdf) |
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## Add to project
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Packages from this repository are uploaded to [Espressif's component service](https://components.espressif.com/).
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You can add them to your project via `idf.py add-dependancy`, e.g.
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```
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idf.py add-dependency "waveshare/esp_lcd_sh8601"
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```
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Alternatively, you can create `idf_component.yml`. More is in [Espressif's documentation](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/tools/idf-component-manager.html).
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## BackLight
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sent 0x51 0x00~0xFF to control backlight
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## Initialization Code
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### QSPI Interface
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```c
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ESP_LOGI(TAG, "Initialize QSPI bus");
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const esp_lcd_panel_io_spi_config_t io_config = SH8601_PANEL_BUS_QSPI_CONFIG(EXAMPLE_PIN_NUM_LCD_PCLK,
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EXAMPLE_PIN_NUM_LCD_DATA0,
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EXAMPLE_PIN_NUM_LCD_DATA1,
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EXAMPLE_PIN_NUM_LCD_DATA2,
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EXAMPLE_PIN_NUM_LCD_DATA3,
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EXAMPLE_LCD_H_RES * 80 * sizeof(uint16_t));
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ESP_ERROR_CHECK(spi_bus_initialize(EXAMPLE_LCD_HOST, &buscfg, SPI_DMA_CH_AUTO));
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ESP_LOGI(TAG, "Install panel IO");
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esp_lcd_panel_io_handle_t io_handle = NULL;
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const esp_lcd_panel_io_spi_config_t io_config = SH8601_PANEL_IO_QSPI_CONFIG(EXAMPLE_PIN_NUM_LCD_CS, callback, &callback_data);
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ESP_ERROR_CHECK(esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)EXAMPLE_LCD_HOST, &io_config, &io_handle));
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/**
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* Uncomment these line if use custom initialization commands.
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* The array should be declared as static const and positioned outside the function.
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*/
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// static const sh8601_lcd_init_cmd_t lcd_init_cmds[] = {
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// // {cmd, { data }, data_size, delay_ms}
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// {0x44, (uint8_t []){0x00, 0xc8}, 2, 0},
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// {0x35, (uint8_t []){0x00}, 0, 0},
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// {0x53, (uint8_t []){0x20}, 1, 25},
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// {0x29, (uint8_t []){0x00}, 0, 120},
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// ...
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// };
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ESP_LOGI(TAG, "Install SH8601 panel driver");
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esp_lcd_panel_handle_t panel_handle = NULL;
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const sh8601_vendor_config_t vendor_config = {
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// .init_cmds = lcd_init_cmds, // Uncomment these line if use custom initialization commands
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// .init_cmds_size = sizeof(lcd_init_cmds) / sizeof(sh8601_lcd_init_cmd_t),
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.flags = {
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.use_qspi_interface = 1,
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},
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};
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const esp_lcd_panel_dev_config_t panel_config = {
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.reset_gpio_num = EXAMPLE_PIN_NUM_LCD_RST,
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.rgb_ele_order = LCD_RGB_ELEMENT_ORDER_RGB, // Implemented by LCD command `36h`
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.bits_per_pixel = 16, // Implemented by LCD command `3Ah`
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.vendor_config = &vendor_config,
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};
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ESP_ERROR_CHECK(esp_lcd_new_panel_sh8601(io_handle, &panel_config, &panel_handle));
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esp_lcd_panel_reset(panel_handle);
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esp_lcd_panel_init(panel_handle);
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esp_lcd_panel_disp_on_off(panel_handle, true);
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```
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## Notes
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* When utilizing `esp_panel_lcd_draw_bitmap()` to refresh the screen, ensure that `x_start`, `y_start`, `x_end` and `y_end` are divisible by `2`. This is a requirement of SH8610. For LVGL, register the following function into `rounder_cb` of `lv_disp_drv_t` to round the coordinates.
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```c
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void lvgl_port_rounder_callback(struct _lv_disp_drv_t * disp_drv, lv_area_t * area)
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{
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uint16_t x1 = area->x1;
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uint16_t x2 = area->x2;
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uint16_t y1 = area->y1;
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uint16_t y2 = area->y2;
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// round the start of area down to the nearest even number
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area->x1 = (x1 >> 1) << 1;
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area->y1 = (y1 >> 1) << 1;
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// round the end of area up to the nearest odd number
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area->x2 = ((x2 >> 1) << 1) + 1;
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area->y2 = ((y2 >> 1) << 1) + 1;
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}
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```
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