Switch On the Pico board Showing horizontal line after few second working

[maxmurugan]

https://github.com/board707/DMD_STM32/assets/4962604/87debcaf-8ff6-44f5-af7b-1d7f05d92a5b

// mux pins - A, B, C... all mux pins must be selected from same port!

define DMD_PIN_A 6

define DMD_PIN_B 7

define DMD_PIN_C 8

define DMD_PIN_D 9

define DMD_PIN_E 10

// put all mux pins at list uint8_t mux_list[] = { DMD_PIN_A , DMD_PIN_B , DMD_PIN_C , DMD_PIN_D , DMD_PIN_E };

define DMD_PIN_nOE 15

define DMD_PIN_SCLK 12

uint8_t custom_rgbpins[] = { 11,16,17,18,19,20,21 }; // CLK, R0, G0, B0, R1, G1, B1

DMD_RGB_SHIFTREG_ABC <RGB80x40_S10_LNikon, COLOR_4BITS> dmd(mux_list, DMD_PIN_nOE, DMD_PIN_SCLK, custom_rgbpins, DISPLAYS_ACROSS, DISPLAYS_DOWN, ENABLE_DUAL_BUFFER);

using this setting Pico board

how to solve the issue ,i try another board same issue will happened

[maxmurugan]

https://github.com/board707/DMD_STM32/assets/4962604/cd3a27c2-7fbc-4969-a50e-7ee6e5fe2f1b

[maxmurugan]

please check

[maxmurugan]

DP5125 DP32020A P4 - 1/10 scan

[board707]

Hi Could you provide a more info? In your video there is a defect at first, and then the picture is normal. Did I understand correctly that the defect is observed only for a few seconds? What version of the library do you have? Haven't you updated it recently? Did you see this issue before?

[maxmurugan]

version=1.0.6 I am using same library P10 RGB Module working fine

Now Try to P4 Module RGB issue will happened

[maxmurugan]

Startup issue after few second working change to 3 to 4 module same issue will happened

[board707]

Startup issue after few second working change to 3 to 4 module same issue will happened

I didn't understand this, sorry

[maxmurugan]

this hardware issue i have change another SMPS problem solved thanks your support

[board707]

i have change another SMPS problem solved

What is SMPS?

[maxmurugan]

XPS 5V/20A