no screen to see with ArduinoIDE and JC8048W550_C ESP32S3 N16R8

[hape65]

hi i compile this Source with LVLG 8.x.x

/*******************************************************************************
 * Start of Arduino_GFX setting
 ******************************************************************************/
#include <Arduino_GFX_Library.h>

/* OPTION 1: Uncomment a dev device in Arduino_GFX_dev_device.h */
#include "Arduino_GFX_dev_device.h"

/*******************************************************************************
 * End of Arduino_GFX setting
 ******************************************************************************/

/*******************************************************************************
 * Start of EEZ Settings
 ******************************************************************************/

//#include ".h"
#include "touch.h"
#include "lvgl.h" 

#include "ui.h"

/*******************************************************************************
 * End of EEZ Settings
 ******************************************************************************/

#ifdef ESP32
#undef F
#define F(s) (s)
#endif

/* Change to your screen resolution */
static uint32_t screenWidth;
static uint32_t screenHeight;

void setup()
{
  Serial.begin(115200);
  // Serial.setDebugOutput(true);
  // while(!Serial);
  Serial.println("Arduino_GFX PDQgraphicstest example!");

#ifdef GFX_EXTRA_PRE_INIT
  GFX_EXTRA_PRE_INIT();
#endif

  // Init Display
  if (!gfx->begin())
  // if (!gfx->begin(80000000)) /* specify data bus speed */
  {
    Serial.println("gfx->begin() failed!");
  }                                                 // digit size

#ifdef GFX_BL
  pinMode(GFX_BL, OUTPUT);
  digitalWrite(GFX_BL, HIGH);
#endif
  gfx->fillScreen(RED);
  delay(500);
  gfx->fillScreen(GREEN);
  delay(500);
  gfx->fillScreen(BLUE);
  delay(500);
  gfx->fillScreen(BLACK);
  delay(50);
  lv_init();
  delay(10);

  screenWidth = gfx->width();
  screenHeight = gfx->height();

Serial.println("before touch");

touch_init();

Serial.println("before ui_init");

ui_init();

Serial.println("after ui_init");
}

static inline uint32_t micros_start() __attribute__((always_inline));
static inline uint32_t micros_start()
{
  uint8_t oms = millis();
  while ((uint8_t)millis() == oms)
    ;
  return micros();
}

void loop(void)
{  
  lv_timer_handler();
  ui_tick();
}

this is what i see in the Serial Monitor:

16:11:04.698 -> Rebooting...
16:11:04.698 -> �ESP-ROM:esp32s3-20210327
16:11:04.698 -> Build:Mar 27 2021
16:11:04.698 -> rst:0xc (RTC_SW_CPU_RST),boot:0x8 (SPI_FAST_FLASH_BOOT) 16:11:04.698 -> Saved PC:0x42046582
16:11:04.698 -> SPIWP:0xee
16:11:04.698 -> mode:DIO, clock div:1
16:11:04.698 -> load:0x3fce3808,len:0x4bc
16:11:04.698 -> load:0x403c9700,len:0xbd8
16:11:04.698 -> load:0x403cc700,len:0x2a0c
16:11:04.698 -> entry 0x403c98d0
16:11:04.834 -> Arduino_GFX PDQgraphicstest example!
16:11:06.550 -> before touch
16:11:06.550 -> before ui_init 16:11:06.550 -> Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled. 16:11:06.581 -> 16:11:06.581 -> Core 1 register dump: 16:11:06.615 -> PC : 0x42005f83 PS : 0x00060e30 A0 : 0x820054f1 A1 : 0x3fcebb60
16:11:06.615 -> A2 : 0x00000000 A3 : 0x3fced708 A4 : 0x00000004 A5 : 0x420459d4
16:11:06.615 -> A6 : 0x00000043 A7 : 0x3fce9dc0 A8 : 0x820162ca A9 : 0x3fcebb40
16:11:06.615 -> A10 : 0x3fced6e4 A11 : 0x00000000 A12 : 0x3fced6d0 A13 : 0x3fced6c0
16:11:06.615 -> A14 : 0x00000021 A15 : 0x00000003 SAR : 0x00000019 EXCCAUSE: 0x0000001c
16:11:06.648 -> EXCVADDR: 0x00000022 LBEG : 0x42016f7c LEND : 0x42016f9a LCOUNT : 0x00000000
16:11:06.648 -> 16:11:06.581 -> Core 1 register dump: 16:11:06.615 -> PC : 0x42005f83 PS : 0x00060e30 A0 : 0x820054f1 A1 : 0x3fcebb60
16:11:06.615 -> A2 : 0x00000000 A3 : 0x3fced708 A4 : 0x00000004 A5 : 0x420459d4
16:11:06.615 -> A6 : 0x00000043 A7 : 0x3fce9dc0 A8 : 0x820162ca A9 : 0x3fcebb40
16:11:06.615 -> A10 : 0x3fced6e4 A11 : 0x00000000 A12 : 0x3fced6d0 A13 : 0x3fced6c0
16:11:06.615 -> A14 : 0x00000021 A15 : 0x00000003 SAR : 0x00000019 EXCCAUSE: 0x0000001c
16:11:06.648 -> EXCVADDR: 0x00000022 LBEG : 0x42016f7c LEND : 0x42016f9a LCOUNT : 0x00000000
16:11:06.648 -> 16:11:06.648 -> 16:11:06.648 -> Backtrace: 0x42005f80:0x3fcebb60 0x420054ee:0x3fcebb80 0x42004ec7:0x3fcebba0 0x42001f6d:0x3fcebbc0 0x4200205b:0x3fcebbe0 0x420020a7:0x3fcebc00 0x42001e4c:0x3fcebc20 0x42022162:0x3fcebc50 16:11:06.648 -> 16:11:06.648 -> 16:11:06.648 -> 16:11:06.648 -> 16:11:06.648 -> ELF file SHA256: 3f4d77ded5c00e02 16:11:06.689 -> 16:11:06.846 -> Rebooting...

On the scree the GFX flashes red-green-blue-black

The ui is only one screen no actions with a field and a keyboard toched to a textarea

What is wrong that there is such an error and no GUI?

hape

[mvladic]

Judging by the serial output, we can conclude that a crash occurred when calling ui_init(). Now it is necessary to find out exactly where in ui_init the crash occurred. So may I recommended that you insert print to serial output inside the ui_init function and deeper until you reach the line in EEZ Studio generated code that causes the crash.

[hape65]

if i add lines like this in ui.h Serial.println("before screens.h"); i get C:\Users\hape\Documents\Arduino\PDQgraphicstest2_short\ui.h:14:7: error: expected '=', ',', ';', 'asm' or 'attribute' before '.' token Serial.println("before screens.h"); So it seems this is not possible - what can i do to get .ino sketch with EEZ Studio to run?

[mvladic]

I don't understand, where did you add Serial.println("before screens.h"); in ui.h?

[hape65]

i want to know where the program breaks down - so my idea was to make a serial.println before and after each command. So i type in the line between each command this serial.println

#ifndef EEZ_LVGL_UI_GUI_H
#define EEZ_LVGL_UI_GUI_H

#include <lvgl.h>

------> here Serial.println("before screens.h");
#include "screens.h"

#ifdef __cplusplus
extern "C" {
#endif

void ui_init();

void ui_tick();

void loadScreen(enum ScreensEnum screenId);

#ifdef __cplusplus
}
#endif

#endif // EEZ_LVGL_UI_GUI_H

thats my ui.h

[hape65]

or how can i check the break down which command make this happen?

[mvladic]

I can see that you are beginner in C programming. You can't add Serial.print line anywhere, it must be inside function body. So, try to add it inside some function in ui.c, for example start with ui_init. And, later you can try in create_screen functions located in screens.c.

[hape65]

ok this

void ui_init() {    
    Serial.println("before create_screens");
    create_screens();
    Serial.println("before loadScreen");
    loadScreen(SCREEN_ID_MAIN);
    Serial.println("after loadScreen");
}

gives this: C:\Users\hape\Documents\Arduino\PDQgraphicstest2_short\ui.c: In function 'ui_init': C:\Users\hape\Documents\Arduino\PDQgraphicstest2_short\ui.c:29:5: error: 'Serial' undeclared (first use in this function) Serial.println("before create_screens"); ^~

[mvladic]

Add #include <Arduino.h> at the top.

[hape65]

no that also doesn't work it should be something like this (but for now that also doesn't work https://stackoverflow.com/questions/66632376/how-to-call-serial-print-from-c-file-in-arduino-ide

[mvladic]

Stackoverflow answer is correct.

In ui.c, add line void my_log(const char *msg); after includes and replace Serial.println with my_log, like this:

#include ...

// ...

void my_log(const char *msg); // new!

// ...

void ui_init() {    
    my_log("before create_screens"); // use my_log instead of Serial.println
    create_screens();
    my_log("before loadScreen"); // same here
    loadScreen(SCREEN_ID_MAIN);
    my_log("after loadScreen"); // same here
}

In your .ino file add at the end:

extern "C" void my_log(const char *msg) {
  Serial.println(msg);
}

I hope I didn't make some syntax error while writing this without trying. If you still have an error please post here output of the build.

[mvladic]

Let me explain. Of course Serial.println didn't work in ui.c file because ui.c is writen in C and Serial is C++ object with the println method/function. Also, extern "C" is required because of C++ name mangling.

[mvladic]

And by the way, .ino file is actually .cpp file (C++ source file) but, I think, Arduino decided to invent a new extension so when you double click .ino file OS will open Arduino IDE.

[mvladic]

One more thing. You can meet us at Discord where there is an ongoing discussion with other members and supporters about usage, improvements, issues, etc. For questions about EEZ Studio and LVGL support use following channels: #eez-studio, #lvgl and #eez-flow