The screen is initialized correctly every 2 times

[paxo-project]

The screen is initialized correctly every 2 times

Whether when starting the code, or when resetting the screen after a sleep mode, resetting communication with the screen only works once in 2, whether using lcd ->init(); or lcd->init_without_reset() The project in question is still that of an open source phone and the fact that the screen only lights up once in 2 is quite problematic. The power supply is controlled by the esp32 and perfectly stable esp. I specify that during a bad initialization, I also receive an error from the touch part in i2c:

[333577][V][Touch_FT5x06.cpp:63] _check_init(): [FT5x06] CIPHER:0x64 / FIRMID:0x03 / VENDID:0x11

Environment ( 実行環境 )

• MCU or Board name: esp32 wrover b
• Panel Driver IC: ILI9488
• Bus type: SPI (shared with SD card) + I2C (touchscreen)
• LovyanGFX version: latest
• FrameWork version: ArduinoESP32 v2.0.3
• Build Environment: PlatformIO
• Operating System: Linux

Problem Description ( 問題の内容 )

Screen initialization fails 1 out of 2 times

Expected Behavior ( 期待される動作 )

White sceen

Steps to reproduce ( 再現のための前提条件 )

Just init the screen?

Schematic

Code to reproduce this issue ( 再現させるためのコード )

Please submit complete source code that can reproduce your problem. Full Code

// Config
#define LGFX_USE_V1

#include <LovyanGFX.hpp>

class LGFX : public lgfx::LGFX_Device
{
  lgfx::Panel_ILI9488     _panel_instance;
  lgfx::Bus_SPI       _bus_instance;   // SPIバスのインスタンス
  lgfx::Light_PWM     _light_instance;
  lgfx::Touch_FT5x06 _touch_instance;

public:
  LGFX(void)
  {
    {
      auto cfg = _bus_instance.config();

      cfg.spi_host = VSPI_HOST;
      cfg.spi_mode = 0;
      cfg.freq_write = 20000000;
      cfg.freq_read  = 16000000;
      cfg.spi_3wire  = true; // changed
      cfg.use_lock   = true;
      cfg.pin_sclk = 18;
      cfg.pin_mosi = 23;
      cfg.pin_dc   = 2;

     _bus_instance.config(cfg);
      _panel_instance.setBus(&_bus_instance);
    }

    {
      auto cfg = _panel_instance.config();

      cfg.pin_cs           =    13;
      cfg.pin_rst          =    -1;
      cfg.pin_busy         =    -1;

      cfg.panel_width      =   320; 
      cfg.panel_height     =   480; 
      cfg.offset_x         =     0; 
      cfg.offset_y         =     0; 
      cfg.offset_rotation  =     0; 
      cfg.dummy_read_pixel =     8; 
      cfg.dummy_read_bits  =     0;//1 
      cfg.readable         =  false; 
      cfg.invert           = false; 
      cfg.rgb_order        = false; 
      cfg.dlen_16bit       = false; 
      cfg.bus_shared       =  true; 

      cfg.memory_width     =   320; 
      cfg.memory_height    =   480; 

      _panel_instance.config(cfg);
    }
    {
      auto cfg = _light_instance.config();

      cfg.pin_bl = 5;
      cfg.invert = true;
      cfg.freq   = 44100;
      cfg.pwm_channel = 0;

      _light_instance.config(cfg);
      _panel_instance.setLight(&_light_instance);  // バックライトをパネルにセットします。
    }
    {
      auto cfg = _touch_instance.config();
      cfg.i2c_port = 1;
      cfg.i2c_addr = 0x38;
      cfg.pin_sda  = 21;
      cfg.pin_scl  = 22;

      _touch_instance.config(cfg);
      _panel_instance.setTouch(&_touch_instance);  // タッチスクリーンをパネルにセットします。
    }

    setPanel(&_panel_instance); // 使用するパネルをセットします。
  }
};

I hope it was me who made a simple mistake in my configuration Thanks in advance!

[tobozo]

Bus type: SPI (shared with SD card)

is that behaviour consistent whether there is a sdcard inserted or not?

[paxo-project]

It is the same even without SD card unfortunately

[paxo-project]

I also add that the screen is connected via 3-wire spi, so no miso

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions[bot]]

This issue has been automatically closed because it has not had recent activity. Thank you for your contributions.