8048S043 capacitative touch buttons not working in demo

[rzeldent]

Discussed in https://github.com/rzeldent/esp32-smartdisplay/discussions/189

^{Originally posted by ralphrmartin August 14, 2024} I have a problem on an 8048s043 board, bought as having capacitative touch. It has both a GT911 chip and an xpt2046 chip. The board as supplied had a demo running on it iwhich iworked OK, including touch (which does indeed seem to be capacitative as it responded to a light touch), but when I try the eap32-smartdisplay-demo program, touch does not work correctly (whether I select 8048S043C or 8048S043R). The display is drawn correctly, but the buttons to add 1 and to rotate do not function.

On enabling debugging, the display" jumps" whenever I press either button, but they still do not work as intended. The debugging information shows the below.

Can anyone enlighten me as to what is going wrong here? (Why is the SDK version: v4.4.7-dirty?)

Thanks.

ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x1 (POWERON),boot:0x8 (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce3808,len:0x4bc
load:0x403c9700,len:0xbd8
load:0x403cc700,len:0x2a0c
entry 0x403c98d0
[   139][I][esp32-hal-psram.c:96] psramInit(): PSRAM enabled
[  5149][I][main.cpp:29] setup(): Board: esp32-8048S043C
[  5155][I][main.cpp:30] setup(): CPU: ESP32-S3 rev0, CPU Freq: 240 Mhz, 2 core(s)
[  5162][I][main.cpp:31] setup(): Free heap: 316116 bytes
[  5167][I][main.cpp:32] setup(): Free PSRAM: 8386279 bytes
[  5173][I][main.cpp:33] setup(): SDK version: v4.4.7-dirty
[  5178][D][esp32_smartdisplay.c:173] smartdisplay_init(): smartdisplay_init
[  5185][D][lvgl_panel_st7262_par.c:65] lvgl_lcd_init(): rgb_panel_config: clk_src:0, timings:{pclk_hz:12500000, h_res:800, v_res:480, hsync_pulse_width:4, hsync_back_porch:8, hsync_front_porch:8, vsync_pulse_width:4, vsync_back_porch:8, vsync_front_porch:8, flags:{hsync_idle_low:0, vsync_idle_low:0, de_idle_high:0, pclk_active_neg:1, pclk_idle_high:0}}, data_width:16, sram_trans_align:4, psram_trans_align:64, hsync_gpio_num:39, vsync_gpio_num:41, de_gpio_num:40, pclk_gpio_num:42, data_gpio_nums:[15,16,4,45,48,47,21,14,8,3,46,9,1,5,6,7,], disp_gpio_num:-1, on_frame_trans_done:0x42029c64, user_ctx:0x3fca4718, flags:{disp_active_low:0, relax_on_idle:0, fb_in_psram:1}
[  5244][D][lvgl_panel_st7262_par.c:66] lvgl_lcd_init(): refresh rate: 0 Hz
[  5275][D][lvgl_touch_gt911_i2c.c:45] lvgl_touch_init(): i2c_config: mode:1, sda_io_num:19, scl_io_num:20, sda_pullup_en:0, scl_pullup_en:0, master:{clk_speed:400000}, clk_flags:0
[  5292][D][lvgl_touch_gt911_i2c.c:60] lvgl_touch_init(): io_i2c_config: dev_addr:0x5d, control_phase_bytes:1, user_ctx:0x3fca46f8, dc_bit_offset:0, lcd_cmd_bits:16, lcd_param_bits:0, flags:{.dc_low_on_data:0, disable_control_phase:1}
[  5312][D][lvgl_touch_gt911_i2c.c:75] lvgl_touch_init(): touch_config: x_max:800, y_max:480, rst_gpio_num:38, int_gpio_num:18, levels:{reset:0, interrupt:0}, flags:{swap_xy:0, mirror_x:0, mirror_y:0}, user_data:0x3fcec7d4
[  5384][D][esp_touch_gt911.c:147] gt911_read_info(): GT911 productId: 911
[  5390][D][esp_touch_gt911.c:148] gt911_read_info(): GT911 fwId: 0x1060
[  5397][D][esp_touch_gt911.c:149] gt911_read_info(): GT911 xResolution/yResolution: (0,0)
[  5405][D][esp_touch_gt911.c:150] gt911_read_info(): GT911 vendorId: 0xff
[  5412][D][esp_touch_gt911.c:465] esp_lcd_touch_new_i2c_gt911(): handle:0x3d977b08
[ 35956][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(421,45), area:53
[ 35965][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:421, y:45, strength:53
[ 35986][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(421,45), area:53
[ 35995][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:421, y:45, strength:53
[ 36016][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(421,45), area:53
[ 36025][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:421, y:45, strength:53
[ 36046][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(421,45), area:53
[ 36055][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:421, y:45, strength:53
[ 36076][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(421,45), area:53
[ 36085][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:421, y:45, strength:53
[ 36106][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(421,45), area:53
[ 36115][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:421, y:45, strength:53
[ 36646][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(413,52), area:70
[ 36655][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:413, y:52, strength:70
[ 36676][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(413,52), area:70
[ 36685][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:413, y:52, strength:70
[ 36706][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(413,52), area:70
[ 36715][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:413, y:52, strength:70
[ 36736][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(413,52), area:70
[ 36745][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:413, y:52, strength:70
[ 36766][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(413,52), area:70
[ 36775][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:413, y:52, strength:70
[ 36796][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(413,52), area:70
[ 36805][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:413, y:52, strength:70
[ 36826][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(413,52), area:70
[ 36835][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:413, y:52, strength:70
[ 36856][D][esp_touch_gt911.c:266] gt911_read_data(): Point: #0, event:0, point:(413,52), area:64
[ 36865][D][esp_touch_gt911.c:303] gt911_get_xy(): Touch data: x:413, y:52, strength:64
```</div>

[DevAnyKR]

i have esp32-8048s043C no xpt2046, only gt911 ST7262 RGB

'.pio/libdeps/esp32-8048S043C/esp32_smartdisplay/src/lvgl_panel_st7262_par.c:101:10: error: 'esp_lcd_rgb_panel_config_t' has no member named 'on_frame_trans_done'
.pio/libdeps/esp32-8048S043C/esp32_smartdisplay/src/lvgl_panel_st7262_par.c:102:10: error: 'esp_lcd_rgb_panel_config_t' has no member named 'user_ctx'

where is on_frame_trans_done, user_ctx ?

ps. I also have the screen jumping problem.

ex) LVGL

lv_display_set_buffers(disp, disp_draw_buf, NULL, bufSize * 2, LV_DISPLAY_RENDER_MODE_PARTIAL); // is OK.

lv_display_set_buffers(disp, disp_draw_buf, NULL, bufSize * 2, LV_DISPLAY_RENDER_MODE_DIRECT); // screen moves every time touch 

[rzeldent]

Hi DevAny,

Strange it does not compile. Are you using the coorrect version of LVGL? Otherwise take a look at the develop branch.

I only uses partial updates. It might be possible that complete updates work but the framerate will be very low and this can lead to problems. It can also be that the parameters PCLK etc need to be tweaked.

Hope I gave you some useful info ...

[avbazurt]

First of all, thank you for this amazing project. I recently started working with TFT displays, and this library has been incredibly helpful. Everything worked great with non-touch displays (like the ESP32-4827S043N).

Now I’m trying to use the ESP32-8048S043C, and I’ve encountered an issue when running the demo from this repository — the screen stays completely blank.

Below is a photo showing the problem (blank screen):

And here’s the board I’m using:

The touch panel seems to respond (based on the logs using -D CORE_DEBUG_LEVEL=ARDUHAL_LOG_LEVEL_DEBUG), but nothing is displayed:

I tested with the latest commits:

• esp32-smartdisplay-demo: d031a0a
• esp32-smartdisplay: 6d6be99
• platformio-espressif32-sunton: 3cf74ce

And also with the latest releases:

• demo: 2.1.1
• smartdisplay: 2.1.0
• sunton: 2.0.11

But I get the same result. Maybe I’m missing something. I’d really appreciate any guidance to get this display working with this great library.

[avbazurt]

I’ve been running some tests and, while searching for a solution, I came across this comment: https://github.com/rzeldent/esp32-smartdisplay-demo/issues/21#issuecomment-1962347355

It describes a similar issue with another display. Using that as a reference, I changed this value:

ST7262_PANEL_CONFIG_TIMINGS_PCLK_HZ = (16*1000000)

After that, the screen started showing content.

However, when using the touch panel, some strange behavior occurs: the image gets distorted, and if I keep pressing the screen, it slowly starts to fade out. Also, the buttons don’t seem to work.

This happened using the demo example as-is, with only that one parameter changed. I'm attaching a video showing the issue.

https://github.com/user-attachments/assets/e92c35f9-0935-4d1e-bfef-4ea333f30646

Important note: With the original demo that came with the board, and with some examples found online using LVGL and touch, everything works correctly — touch is responsive, and the screen behaves as expected. So I believe this rules out any hardware issues with the board itself.