ILI9488 SPI HOW TO IT WORK [FR] (feature summary)

[minhngoc123]

Is your feature request related to a problem? Please describe.

I USE BOARD BLACKSTM32F407VET6 CONNECTED TO LCD ILI9488 SPI BUT IT DOESN'T WORK I TRY DISCONNECT the RESET pin and connect it to the 3.3V pin. SCREEN ON ONLY GRAY 1. I TRY TRY #define TFT_ROTATION BUT EVERYTHING STILL DOESN'T WORK IN FILE : pins_BLACK_STM32F407VE.H I HAVE DEFINE LCD PAIN:

define LCD_PINS_RS PE15

define LCD_PINS_ENABLE PD8

define LCD_PINS_D4 PE10

define LCD_PINS_D5 PE12

define LCD_PINS_D6 PD1

define LCD_PINS_D7 PE8

define BTN_ENC PD9

define BTN_EN1 PD4

//#define BTN_EN2 PD13

define DOGLCD_CS LCD_PINS_D5

define DOGLCD_A0 LCD_PINS_D6

define TFT_CS_PIN LCD_PINS_ENABLE

define TFT_A0_PIN TFT_DC_PIN

define TFT_SCK_PIN PB13 // SPI2_SCK

define TFT_MISO_PIN PB14 // SPI2_MISO

define TFT_MOSI_PIN PB15 // SPI2_MOSI

define TFT_DC_PIN LCD_PINS_D7

define TFT_RST_PIN LCD_PINS_RS

Are you looking for hardware support?

BLACKSTM32F407VET6 VS ILI9488 SPI

Describe the feature you want

i hope it work

Additional context

[ellensp]

You need to set up your screen, beyond just the pins..., I suspect you have TFT_GENERIC enabled,,,

See Marlin/src/inc/Conditionals_LCD.h example for ILI9488

#elif ANY(MKS_ROBIN_TFT35, TFT_TRONXY_X5SA, ANYCUBIC_TFT35)                   // ILI9488
  #define TFT_DRIVER ILI9488
  #define TFT_DEFAULT_ORIENTATION (TFT_EXCHANGE_XY | TFT_INVERT_X | TFT_INVERT_Y)
  #define TFT_RES_480x320
  #define TFT_INTERFACE_FSMC

so you need to add a block something like this (with your correct resolution)

#elif ENABLED(MY_CUSTOM_TFT)
  #define TFT_DRIVER ILI9488
  #define TFT_DEFAULT_ORIENTATION (TFT_EXCHANGE_XY | TFT_INVERT_X | TFT_INVERT_Y)
  #define TFT_RES_480x320
  #define TFT_INTERFACE_SPI

And then enable #define MY_CUSTOM_TFT instead of TFT_GENERIC In your Configuration.h

[minhngoc123]

You need to set up your screen, beyond just the pins..., I suspect you have TFT_GENERIC enabled,,,

See Marlin/src/inc/Conditionals_LCD.h example for ILI9488

#elif ANY(MKS_ROBIN_TFT35, TFT_TRONXY_X5SA, ANYCUBIC_TFT35)                   // ILI9488
  #define TFT_DRIVER ILI9488
  #define TFT_DEFAULT_ORIENTATION (TFT_EXCHANGE_XY | TFT_INVERT_X | TFT_INVERT_Y)
  #define TFT_RES_480x320
  #define TFT_INTERFACE_FSMC

so you need to add a block something like this (with your correct resolution)

#elif ENABLED(MY_CUSTOM_TFT)
  #define TFT_DRIVER ILI9488
  #define TFT_DEFAULT_ORIENTATION (TFT_EXCHANGE_XY | TFT_INVERT_X | TFT_INVERT_Y)
  #define TFT_RES_480x320
  #define TFT_INTERFACE_SPI

And then enable #define MY_CUSTOM_TFT instead of TFT_GENERIC In your Configuration.h

i follow it but when buil it gives me an error that i have to choose 1 lcd screen while i already selected

[ellensp]

You going to need to update the sanity check with your new display Go to the line it fails on and add your new TFT to the list

[jmz52]

ILI9488 and ILI9486 do not support 16-bit color when using SPI interface. The only available options are 3-bit and 18-bit colors. Marlin color UI was designed to work with 16-bit colors and STM32 hardware SPI interface with only works in 8-bit and 16-bit modes.

If you REALLY want to use ILI9488 with SPI interface you need transform each pixel's color from 16-bit format to 18-bit format before sending data to TFT and send 3 full bytes for each pixel. See page 120 of ILI9488 datasheet for exact bit order. This will severely affect drawing performance and may affect overall firmware stability.