V9 ili9341 & xpt2046 Guru Meditation Error

SL2021-Dev · July 30, 2023, 4:17pm

Using this code…

import lvgl as lv
from ili9XXX import ili9341
from xpt2046 import xpt2046

disp = ili9341(spihost=2, miso=19, mosi=23, clk=18, cs=15, dc=13, rst=0, backlight=27, mhz=10, factor=4, half_duplex=False, double_buffer=True, power_on=1, backlight_on=1) # half_duplex do not work with SDCard
touch = xpt2046(spihost=2, cs=5)

def button_cb(e):
    print("Clicked")

# Screen Objects
scr = lv.scr_act()
btn = lv.btn(scr)
btn.center()
btn.add_event(button_cb, lv.EVENT.CLICKED, None)
label = lv.label(btn)
label.set_text("CLICK Me")
lv.scr_load(scr)

After a ~ 2 minutes or a couple of touches, getting


Double buffer
ILI9341 initialization completed
Enable backlight
♦♦>
MicroPython v1.20.0-700-g841ece132-dirty on 2023-07-28; ESP32 module (spiram) with ESP32
Type "help()" for more information.
>>> 
>>> Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.

Core  1 register dump:
PC      : 0x40084b99  PS      : 0x00060630  A0      : 0x800de23b  A1      : 0x3ffdebe0  
A2      : 0x00000006  A3      : 0x00000ed2  A4      : 0x00000000  A5      : 0x00000006  
A6      : 0x003fffff  A7      : 0x00060823  A8      : 0x00000000  A9      : 0x3ffdebd0  
A10     : 0x3f81b400  A11     : 0x3f403c74  A12     : 0x3ffd2028  A13     : 0x0000026e  
A14     : 0x000003d6  A15     : 0x0000000c  SAR     : 0x0000001c  EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000006  LBEG    : 0x4009620e  LEND    : 0x40096219  LCOUNT  : 0x00000000  


Backtrace: 0x40084b96:0x3ffdebe0 0x400de238:0x3ffdec10 0x400ff90c:0x3ffdec30 0x40127f93:0x3ffdec60 0x401285d8:0x3ffdec80 0x4014076c:0x3ffdecd0 0x400fd7df:0x3ffded00 0x400fc233:0x3ffded20 0x40107895:0x3ffded40 0x400e55b6:0x3ffded60 0x400e5706:0x3ffded80 0x40086515:0x3ffdeda0 0x400df050:0x3ffdee40 0x400e55b6:0x3ffdee70 0x40121c52:0x3ffdee90 0x40121c85:0x3ffdeed0 0x400e55b6:0x3ffdeef0 0x400e56bf:0x3ffdef10 0x400e60ea:0x3ffdef40 0x400e6274:0x3ffdefc0 0x400d87be:0x3ffdefe0 0x400f1f9d:0x3ffdf000 0x400f280e:0x3ffdf020 0x400d855c:0x3ffdf060


xtensa-esp32-elf-addr2line...
0x40084b96: mp_map_lookup at /mnt/d/SmartLOG_V2/lv_micropython/py/map.c:156
0x400de238: mp_obj_dict_get at /mnt/d/SmartLOG_V2/lv_micropython/py/objdict.c:213
0x400ff90c: lv_indev_t_read_cb_callback at /mnt/d/SmartLOG_V2/lv_micropython/ports/esp32/build-GENERIC_SPIRAM/lv_mp.c:23211
0x40127f93: _lv_indev_read at /mnt/d/SmartLOG_V2/lv_micropython/lib/lv_bindings/lvgl/src/core/lv_indev.c:158
0x401285d8: lv_indev_read_timer_cb at /mnt/d/SmartLOG_V2/lv_micropython/lib/lv_bindings/lvgl/src/core/lv_indev.c:188
 (inlined by) lv_indev_read_timer_cb at /mnt/d/SmartLOG_V2/lv_micropython/lib/lv_bindings/lvgl/src/core/lv_indev.c:166
0x4014076c: lv_timer_exec at /mnt/d/SmartLOG_V2/lv_micropython/lib/lv_bindings/lvgl/src/misc/lv_timer.c:346
 (inlined by) lv_timer_handler at /mnt/d/SmartLOG_V2/lv_micropython/lib/lv_bindings/lvgl/src/misc/lv_timer.c:114
 (inlined by) lv_timer_handler at /mnt/d/SmartLOG_V2/lv_micropython/lib/lv_bindings/lvgl/src/misc/lv_timer.c:71
0x400fd7df: lv_task_handler at /mnt/d/SmartLOG_V2/lv_micropython/lib/lv_bindings/lvgl/src/lv_api_map.h:42
0x400fc233: mp_lv_task_handler at /mnt/d/SmartLOG_V2/lv_micropython/ports/esp32/build-GENERIC_SPIRAM/lv_mp.c:24037
0x40107895: lv_fun_builtin_var_call at /mnt/d/SmartLOG_V2/lv_micropython/ports/esp32/build-GENERIC_SPIRAM/lv_mp.c:103
0x400e55b6: mp_call_function_n_kw at /mnt/d/SmartLOG_V2/lv_micropython/py/runtime.c:695
0x400e5706: mp_call_method_n_kw at /mnt/d/SmartLOG_V2/lv_micropython/py/runtime.c:711
0x40086515: mp_execute_bytecode at /mnt/d/SmartLOG_V2/lv_micropython/py/vm.c:1042
0x400df050: fun_bc_call at /mnt/d/SmartLOG_V2/lv_micropython/py/objfun.c:278
0x400e55b6: mp_call_function_n_kw at /mnt/d/SmartLOG_V2/lv_micropython/py/runtime.c:695
0x40121c52: mp_call_method_self_n_kw at /mnt/d/SmartLOG_V2/lv_micropython/py/objboundmeth.c:70
0x40121c85: bound_meth_call at /mnt/d/SmartLOG_V2/lv_micropython/py/objboundmeth.c:83
0x400e55b6: mp_call_function_n_kw at /mnt/d/SmartLOG_V2/lv_micropython/py/runtime.c:695
0x400e56bf: mp_call_function_1 at /mnt/d/SmartLOG_V2/lv_micropython/py/runtime.c:673
0x400e60ea: mp_call_function_1_protected at /mnt/d/SmartLOG_V2/lv_micropython/py/runtime_utils.c:33
0x400e6274: mp_sched_run_pending at /mnt/d/SmartLOG_V2/lv_micropython/py/scheduler.c:110
 (inlined by) mp_handle_pending at /mnt/d/SmartLOG_V2/lv_micropython/py/scheduler.c:239
0x400d87be: mp_hal_stdin_rx_chr at /mnt/d/SmartLOG_V2/lv_micropython/ports/esp32/mphalport.c:103
0x400f1f9d: readline at /mnt/d/SmartLOG_V2/lv_micropython/shared/readline/readline.c:560
0x400f280e: pyexec_friendly_repl at /mnt/d/SmartLOG_V2/lv_micropython/shared/runtime/pyexec.c:610
0x400d855c: mp_task at /mnt/d/SmartLOG_V2/lv_micropython/ports/esp32/main.c:181
PS D:\SmartLOG_V2>

Does anything stand out ???

SL2021-Dev · July 31, 2023, 7:23pm

So I rebuit my BOARD=GENERIC_SPIRAM .bin
Uploaded, the same issue…

ALSO GET THIS SOMETIMES…

Traceback (most recent call last):
File “lv_utils.py”, line 124, in task_handler
KeyError: lv_indev_t_read_cb

Where to start ???

SL2021-Dev · August 2, 2023, 2:49pm

Changed to IDF 4.4 (from 4.4.5)

ESP32-WROVER-E-N4R8 4MB flash 8MB spiram

lv_micropython master

@file lv_conf.h
Configuration file for v9.0.0-dev

WSL Ubuntu version 20.04.6 LTS

micropython.mem_info()
stack: 704 out of 31744
GC: total: 4098240, used: 18048, free: 4080192
No. of 1-blocks: 336, 2-blocks: 26, max blk sz: 264, max free sz: 254376

esp.flash_size()
4194304

I have also tried on 2 esp32 modules.

Anyone ???

amirgon · August 3, 2023, 6:16am

I’m not sure what is the problem but,

Does it happen with v8 as well? You can try building lv_micropython release/v8 and test it there.
Did you notice that there are two implementations of xpt2046? One ESP32 specific and the other is Micropython generic.
Which one are you using? Did you try the other one?
There are also two implementations for ili9341 (esp specific and mp generic)

SL2021-Dev · August 3, 2023, 2:40pm

Using both ESP32 specific.
The defaut build drivers for ESP32.
I am updating a large project from 1.17 and v8 and like to use the lastest 1.20 / v9.

My 1st build failed because partitions.csv factory was not large enough for the 2.1MB build !!!
How does anyone do OTA with that (they don’t).
The next I have to do is start throwing modules overboard…
lv_micropython/lib/lv_bindings/lv_conf.h
lv_micropython/py/mpconfig.h
lv_micropython/ports/esp32/mpconfigport.h

Newcomers to lv_micropython are going to be overwhelmed and spend days if not weeks just to see there simple button code work.

Should be able to compile without any tweaks.