ESP-S3 Parallel support for ILI9488

[DustinWatts]

To minimise effort to resolve issues the following should be provided as a minimum:

1. ESP32-S3 parallel does not work
2. Adruino IDE
3. Latest from Guthub
4. Board Package Arduino ESP32 Version 2.0.3-RC1
5. ESP32 S3
6. ILI9488
7. Parallel

I tried the https://github.com/Bodmer/TFT_eSPI/blob/master/User_Setups/Setup16_ILI9488_Parallel.h setup but that had no affect. Check the wires, but noting.

[Bodmer]

I have not tested 8 bit parallel with the ESP32 S3. I thought it might work without modification but it seems that is not the case.

What I/O pins have you connected up? The ESP32 requires I/O pins for the data bus plus write pin to be in the range 0-31 so single register writes could be used. The same will apply to the S3.

Note that the Arduino board package is undergoing a lot of low level breaking changes at the moment and so I suspect trouble is ahead until things settle down. I will see if I can get it working with Version 2.0.3-RC1 but the next release may well break things!

[Bodmer]

I have tested the 8 bit parallel with the ESP32 S3 and an ILI9488 (and ST7796) and it works fine with no changes to version 2.4.60 other than calling up the new setup file. I avoided the strapping pins that affect boot mode (GPIO 0 and 3 on my UM PROS3) and followed the need for certain pins to be in the GPIO range 0-31.

The data bus GPIO pins do not need to be sequential.

Here is the setup I used:

#define USER_SETUP_ID 146

#define TFT_PARALLEL_8_BIT

//#define ILI9341_DRIVER
//#define ST7796_DRIVER
#define ILI9488_DRIVER

// ESP32 S3 pins used for the parallel interface TFT
#define TFT_CS    9
#define TFT_DC    8  // Data Command control pin - must use a GPIO in the range 0-31
#define TFT_RST  34

#define TFT_WR    7  // Write strobe control pin - must use a GPIO in the range 0-31
#define TFT_RD    6

#define TFT_D0   12  // Must use GPIO in the range 0-31 for the data bus
#define TFT_D1   13  // so a single register write sets/clears all bits
#define TFT_D2   14
#define TFT_D3   15
#define TFT_D4   16
#define TFT_D5   21
#define TFT_D6    5
#define TFT_D7    4

#define LOAD_GLCD
#define LOAD_FONT2
#define LOAD_FONT4
#define LOAD_FONT6
#define LOAD_FONT7
#define LOAD_FONT8
#define LOAD_GFXFF

#define SMOOTH_FONT

[DustinWatts]

You are absolutely right, it works! Thanks!

[yesnoj]

Sorry for bring back this topic, but i'm using this display here : https://www.makerfabs.com/esp32-s3-parallel-tft-with-touch-ili9488.html But enabling the file Setup70d_ILI9488_S3_Parallel.h , doesn't works. The example from library, TFT_graphictest_one_lib.ino , is compiled without errors, on serial i can see stuff, but the screen is completly off. Can someone help me? =)

[Gisbert12843]

Sorry for bring back this topic, but i'm using this display here : makerfabs.com/esp32-s3-parallel-tft-with-touch-ili9488.html But enabling the file Setup70d_ILI9488_S3_Parallel.h , doesn't works. The example from library, TFT_graphictest_one_lib.ino , is compiled without errors, on serial i can see stuff, but the screen is completly off. Can someone help me? =)

dont forget to connect ground, background_power and VDD/VCC Pins!