JC8048W550 ST7262 GT911 800x600 IPS #338

straga · 2025-05-01T12:55:32Z

straga
May 1, 2025

Wrong position.

Build: python3 make.py esp32 BOARD=ESP32_GENERIC_S3 BOARD_VARIANT=SPIRAM_OCT --flash-size=16 DISPLAY=rgb_display INDEV=gt911

import lcd_bus
import rgb_display
import lvgl as lv

# ST7262 800×480 5.0" IPS
rgb_bus = lcd_bus.RGBBus(
    hsync=39, vsync=41, de=40, pclk=42,

    data0=8, data1=3, data2=46, data3=9, data4=1,
    data5=5, data6=6, data7=7,data8=15, data9=16, data10=4,
    data11=45, data12=48, data13=47, data14=21, data15=14,

    freq=16*1000000,
    hsync_front_porch=8, hsync_pulse_width=4, hsync_back_porch=8, hsync_idle_low=False,
    vsync_front_porch=8, vsync_pulse_width=4, vsync_back_porch=8, vsync_idle_low=False,
    de_idle_high=False,
    pclk_idle_high=False,
    pclk_active_low=True,

)

WIDTH, HEIGHT = 800, 480
BUFFER_SIZE = int(WIDTH * HEIGHT * 2)
_WIDTH, _HEIGHT = 800, 480

# _BUF1 = rgb_bus.allocate_framebuffer(BUFFER_SIZE, lcd_bus.MEMORY_SPIRAM)
# _BUF2 = rgb_bus.allocate_framebuffer(BUFFER_SIZE, lcd_bus.MEMORY_SPIRAM)

display = rgb_display.RGBDisplay(
    data_bus=rgb_bus,
    display_width=_WIDTH,
    display_height=_HEIGHT,
    # frame_buffer1=_BUF1,
    # frame_buffer2=_BUF2,
    backlight_pin=2,
    color_space=lv.COLOR_FORMAT.RGB565,
    rgb565_byte_swap=False,
)
display.set_power(True)
display.init()
display.set_backlight(100)

print('Display init done')

scrn = lv.screen_active()

slider = lv.slider(scrn)
slider.set_size(200, 50)
slider.center()

label = lv.label(scrn)
label.set_text('HELLO WORLD!')
label.align(lv.ALIGN.CENTER, 0, -50)

import task_handler
th = task_handler.TaskHandler()

kdschlosser · 2025-05-01T13:09:52Z

kdschlosser
May 1, 2025
Maintainer

I know the RGB driver is a bit outta wack. I have to get it fixed and I simply have not had a lot of time to be able to do it. What I need to do is to separate the rotation stuff out of the RGB driver and make it available to all of the different display busses along with the current way the RGB driver handles doing the rotation using the second core.

0 replies

straga · 2025-05-01T13:14:51Z

straga
May 1, 2025
Author

May do rotation, optional. We can remove rotation and add rotation if needed later.

3 replies

kdschlosser May 1, 2025
Maintainer

it's already in the RGB code

kdschlosser May 1, 2025
Maintainer

There is no reason to remove it as the problem is not being caused by the rotation. It is being caused by the copying of the partial buffer to the full buffer and having some piece of math slightly off.

kdschlosser May 1, 2025
Maintainer

I did have it working right at one point in time. I would have to go back and look at the merge history to find the point where it was working properly and see what I changed that mucked it up.

kdschlosser · 2025-05-01T13:51:48Z

kdschlosser
May 1, 2025
Maintainer

I do spy part of your issue tho...

    freq=16*1000000,

that's wrong. it should be

    freq=13*1000000,

or possibly

    freq=12*1000000,

The best you will see is

    freq=14*1000000,

and that is only if you overclock the SPIRAM.

2 replies

straga May 1, 2025
Author

work only freq=16*1000000, other not any images on LCD, only backlight.

kdschlosser May 1, 2025
Maintainer

really...

from what I am seeing in your image that is caused by the frequency not being right. That will cause the displayed image to be shifted.

I know there is no way the library is going to be able to update the display at 16mhz and have it be correct. This is because of the added overhead with MicroPython.

I will mess about with the RGB driver and make sure it is working properly with a display I have. I will let you know my findings.

straga · 2025-05-02T07:01:13Z

straga
May 2, 2025
Author

Work with wifi or use touch.

2025-05-02.09.52.02.mp4

freq=14300000 min, when the screen is not blank, but if I try to use touch, the screen starts changing color from R->G->B black white, loop

pclk_hz=14300000
hsync_pulse_width=4
hsync_back_porch=8
hsync_front_porch=8
vsync_pulse_width=4
vsync_back_porch=8
vsync_front_porch=8
hsync_idle_low=0
vsync_idle_low=0
de_idle_high=0
pclk_active_neg=1
pclk_idle_high=0
clk_src=6
hsync_gpio_num=39
vsync_gpio_num=41
de_gpio_num=40
pclk_gpio_num=42
data_gpio_nums[0]=8
data_gpio_nums[1]=3
data_gpio_nums[2]=46
data_gpio_nums[3]=9
data_gpio_nums[4]=1
data_gpio_nums[5]=5
data_gpio_nums[6]=6
data_gpio_nums[7]=7
data_gpio_nums[8]=15
data_gpio_nums[9]=16
data_gpio_nums[10]=4
data_gpio_nums[11]=45
data_gpio_nums[12]=48
data_gpio_nums[13]=47
data_gpio_nums[14]=21
data_gpio_nums[15]=14
sram_trans_align=8
psram_trans_align=64
refresh_on_demand=0
fb_in_psram=0
double_fb=0
data_width=16
lcd_panel_io_allocate_framebuffer(self, size=76800, caps=2056)
lcd_panel_io_allocate_framebuffer(self, size=76800, caps=1032)
lcd_panel_io_allocate_framebuffer(self, size=76800, caps=2048)
lcd_panel_io_allocate_framebuffer(self, size=76800, caps=1024)
rgb_init(self, width=i, height=i, bpp=800, buffer_size=480, rgb565_byte_swap=16)
h_res=800
v_res=480
bits_per_pixel=16
rgb565_byte_swap=0
rgb_bus_copy_task - STARTED
D (30919) lcd_panel.rgb: installed pm lock and hold the lock during the whole panel lifecycle
D (30919) intr_alloc: Connected src 24 to int 12 (cpu 0)
D (30929) gdma: new pair (0,1) at 0x3c3ea804
D (30929) gdma: new tx channel (0,1) at 0x3c32efc4
D (30939) gdma: tx channel (0,1), (8:64) bytes aligned, burst enabled
D (30939) lcd_panel.rgb: new rgb panel(0) @0x3fce00a8, num_fbs=zu, fb_size=zu, bb0 @0x2, bb1 @0xbb800, bb_size=zu
D (30949) lcd_panel.rgb: fb[zu] @0
D (30959) lcd_panel.rgb: fb[zu] @0x1
D (30959) lcd_hal: n=5,a=47,b=28,mo=2
D (30959) lcd_panel.rgb: rgb panel(0) start, pclk=14296578Hz
Display init done
D (31199) intr_alloc: Connected src 43 to int 4 (cpu 1)
Touch Product id: 911
Touch Firmware version: 0x1060
Touch Vendor id: 0x0
Touch resolution: width=800, height=480
D (31279) nvs: nvs_open_from_partition GT911_2 1
D (31279) nvs: nvs_get_str_or_blob ts_config
D (31329) wifi:bssid equal: ss_state=0x4
D (31419) intr_alloc: Connected src 50 to int 5 (cpu 1)
Hello LVGL
Left TOP
Right TOP
Left BOTTOM
Right BOTTOM
>>> rgb_tx_color(self, lcd_cmd=44, color, color_size=76800, x_start=0, y_start=0, x_end=799, y_end=47)
rgb_tx_color(self, lcd_cmd=44, color, color_size=76800, x_start=0, y_start=48, x_end=799, y_end=95)
rgb_tx_color(self, lcd_cmd=44, color, color_size=76800, x_start=0, y_start=96, x_end=799, y_end=143)
rgb_tx_color(self, lcd_cmd=44, color, color_size=76800, x_start=0, y_start=144, x_end=799, y_end=191)
rgb_tx_color(self, lcd_cmd=44, color, color_size=76800, x_start=0, y_start=192, x_end=799, y_end=239)
rgb_tx_color(self, lcd_cmd=44, color, color_size=76800, x_start=0, y_start=240, x_end=799, y_end=287)
rgb_tx_color(self, lcd_cmd=44, color, color_size=76800, x_start=0, y_start=288, x_end=799, y_end=335)
rgb_tx_color(self, lcd_cmd=44, color, color_size=76800, x_start=0, y_start=336, x_end=799, y_end=383)
rgb_tx_color(self, lcd_cmd=44, color, color_size=76800, x_start=0, y_start=384, x_end=799, y_end=431)
rgb_tx_color(self, lcd_cmd=44, color, color_size=76800, x_start=0, y_start=432, x_end=799, y_end=479)

0 replies

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

JC8048W550 ST7262 GT911 800x600 IPS #338

{{title}}

{{editor}}'s edit

{{editor}}'s edit

Replies: 4 comments 5 replies

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{editor}}'s edit

{{editor}}'s edit

Select a reply

JC8048W550 ST7262 GT911 800x600 IPS #338

straga May 1, 2025

Replies: 4 comments · 5 replies

kdschlosser May 1, 2025 Maintainer

straga May 1, 2025 Author

kdschlosser May 1, 2025 Maintainer

kdschlosser May 1, 2025 Maintainer

kdschlosser May 1, 2025 Maintainer

kdschlosser May 1, 2025 Maintainer

straga May 1, 2025 Author

kdschlosser May 1, 2025 Maintainer

straga May 2, 2025 Author

straga
May 1, 2025

Replies: 4 comments 5 replies

kdschlosser
May 1, 2025
Maintainer

straga
May 1, 2025
Author

kdschlosser May 1, 2025
Maintainer

kdschlosser May 1, 2025
Maintainer

kdschlosser May 1, 2025
Maintainer

kdschlosser
May 1, 2025
Maintainer

straga May 1, 2025
Author

kdschlosser May 1, 2025
Maintainer

straga
May 2, 2025
Author