https://github.com/vadrov/esp32_display_spi_dma_low_layer_driver_jpeg_rendering

ESP32 low layer driver for spi displays (esp-idf-v5.1.2). Optimized JPEG decoder. Demonstration of line-by-line graphics rendering running on two cpu cores.
https://github.com/vadrov/esp32_display_spi_dma_low_layer_driver_jpeg_rendering

display dma esp32 ili9341 jpeg jpeg-decoder jpg rendering spi st7789

Last synced: 16 days ago
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ESP32 low layer driver for spi displays (esp-idf-v5.1.2). Optimized JPEG decoder. Demonstration of line-by-line graphics rendering running on two cpu cores.

• Host: GitHub
• URL: https://github.com/vadrov/esp32_display_spi_dma_low_layer_driver_jpeg_rendering
• Owner: vadrov
• License: mit
• Created: 2025-01-23T19:26:09.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2025-01-23T20:08:26.000Z (over 1 year ago)
• Last Synced: 2025-01-23T20:27:32.382Z (over 1 year ago)
• Topics: display, dma, esp32, ili9341, jpeg, jpeg-decoder, jpg, rendering, spi, st7789
• Language: C
• Homepage:
• Size: 28.5 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
*Copyright (C) 2019-2024, VadRov, all right reserved.*

 

* ESP32 low layer driver for spi displays (esp-idf-v5.1.2)

* Optimized JPEG decoder.

* Demonstration of line-by-line graphics rendering running on two cpu cores.

# How to use?

Open main.c and define connection settings. Select display module (st7789, ili9341). Select the number of cores to demonstrate the operation of graphic line rendering.

 ```c

//--------------------------------------------- User defines ---------------------------------------------

#define CS_PIN   		17	// -1 if not used

#define DC_PIN   		21

#define RST_PIN  		19

#define BCKL_PIN 		5

#define SPI_			SPI3	//SPI2 (GPIO13 -> MOSI, GPIO14 -> CLK)

						//SPI3 (GPIO23 -> MOSI, GPIO18 -> CLK)

#define DMA_ch			1	//DMA channel 1 or 2, 0 - if DMA not used

#define ACT_DISPLAY		ST7789	//ST7789 or ILI9341

#define HI_SPEED			//if uncommented f_clk spi = 80 MHz, else 40 MHz

#define RENDER_USE_TWO_CORES		//Use two esp32 cores for graphics rendering.

						//Comment out if using one core.

#define RENDER_BUFFER_LINES	8

//--------------------------------------------------------------------------------------------------------

```

![Image](https://github.com/user-attachments/assets/a1d1e251-addf-43d6-b90f-d268907fe3f1)

[![Watch the video](https://img.youtube.com/vi/yXXlYOSYgoo/hqdefault.jpg)](https://youtu.be/yXXlYOSYgoo)

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