P4 display get vertical line issue

[maxmurugan]

hi sir

RPI Pico controller some get vertical line issue continuously ,how to solve the issue

please check below code

include "DMD_RGB.h"

//########################################################################################### //#######################################################

include "st_fonts/SystemFont5x7.h"

pragma GCC diagnostic ignored "-Wnarrowing"

pragma GCC diagnostic ignored "-Woverflow"

byte second1, minute1, hour1, dayOfWeek1, dayOfMonth1, month1,year1; //Number of panels in x and y axis

define DISPLAYS_ACROSS 1

define DISPLAYS_DOWN 2

define ENABLE_DUAL_BUFFER true

// ==== DMD_RGB pins ==== // 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 };

// pin OE must be one of PB0 PB1 PA6 PA7

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 <RGB32x32plainS8, COLOR_4BITS> dmd(mux_list, DMD_PIN_nOE, DMD_PIN_SCLK, custom_rgbpins, DISPLAYS_ACROSS, DISPLAYS_DOWN, ENABLE_DUAL_BUFFER); DMD_RGB_SHIFTREG_ABC <RGB80x40plainS20, COLOR_4BITS> dmd(mux_list, DMD_PIN_nOE, DMD_PIN_SCLK, custom_rgbpins, DISPLAYS_ACROSS, DISPLAYS_DOWN, ENABLE_DUAL_BUFFER); // --- Define fonts ---- // DMD.h old style font DMD_Standard_Font systemfont5x7(SystemFont5x7);

charDaysOfWeek[] = {"DUMMY","SUNDAY", "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY"}; charDaysOfMonth[] = {"DUMMY","JANUARY", "FEBRUARY", "MARCH", "APRIL", "MAY", "JUNE", "JULY", " AUGUST", "SEPTEMBER", "OCTOBER", "NOVEMBER", "DECEMBER"}; int Total_week = 52; int Char_Width_A = 6;//char width int Char_Width_B = 8;//char width int Module_Width = 80; byte R1 = 1; byte R2 = 2; byte R3 = 3; byte R4 = 4;

void setup() { dmd.init(); dmd.setBrightness(200); Serial.begin(9600); Serial.println("PICO P10 RTC"); delay(100); hour1 =10; minute1 = 25; second1 = 30; dayOfWeek1 =1; } void loop() { uint16_t col[] = { dmd.Color888(255,0, 0), // red dmd.Color888(0, 255, 0), // green dmd.Color888(0, 0, 255), // blue dmd.Color888(0, 255, 255), // blue dmd.Color888(255, 255, 0), // blue dmd.Color888(255, 0, 255), // blue dmd.Color888(255, 255, 255) // blue }; uint16_t bg = 0; // background - black dmd.selectFont(&systemfont5x7); char a[10]; char b[10]; char c[15]; char d[15]; while (1) {

                sprintf(a,"%02d:%02d",hour1,minute1);
                sprintf(b,"%02d.%02d.20%02d",dayOfMonth1,month1,year1);
                sprintf(c,"%s%02d","WEEK - ",Total_week);
                sprintf(d,"%s",DaysOfWeek[dayOfWeek1]);
                dmd.drawString(0,0,a,strlen(a),col[0]);
                dmd.drawString(0,24,b,strlen(b),col[1]);
                dmd.drawString(0,42,d,strlen(d),col[2]);
                dmd.drawString(0,62,c,strlen(c),col[3]);
                dmd.swapBuffers(true);

   }

} ![Uploading IMG_8476.JPG…]()

[maxmurugan]

[maxmurugan]

p4 - 80x40 two panel please check

[maxmurugan]

at this time serial data received continues only display showing error

[board707]

Hi Please provide a more details of the problem. What's the version of library do you using? (version number can be found in the library.properties file in the library folder). Is the issue there is from the start of the project or it appeared recently after changing the panel, the board, library upgrade, or something else?

[maxmurugan]

library - version [1.1.2] - 2023-12-22

before i use p6 module no issue also try old version same issue will happen.

[maxmurugan]

after few second going to vertical line

[maxmurugan]

Arduino - 1.8.19 Pico -3.6.2 dmd library - 1.1.2

[board707]

So it is a complete new panel that you didn't use before? Please show a clear photo of the panel rear side and indicate partnumbers of any types of chips on the panel.

[maxmurugan]

[board707]

According the label the drivers are DP5125 and RUL5158, it should be supported. As I see, your Pico pins are different than used in the library examples. Did you used the same set of pins with previous panel, that (as I understand) works fine?

[maxmurugan]

Same pin I used last year to till now uint8_t custom_rgbpins[] = { 11,16,17,18,19,20,21 }; // CLK, R0, G0, B0, R1, G1, B1

[maxmurugan]

Same pin configuration I used more then 5 projects. No issues

I have change new pico and smps also issues will happen

[board707]

To clarify the matter - is the same code, same library version and the pins works with previous panels and don't with new ones?

[maxmurugan]

Same code used previous libraries issue will happen change the new library

[board707]

sorry, I didn't understood, my English is not best. Are you mean that the issue appeared in a new library version only?

[maxmurugan]

before i use version=1.0.6

vertical line will create in this project

[board707]

Did you try to use v1.0.6 with these (the new) panels?

( I apologize if you have already answered this question, but apparently I did not understand the answer )

[maxmurugan]

Yes try to use v1.0.6 with these (the new) panels

[board707]

Try to change the DMD class in the sketch from DMD_RGB_SHIFTREG_ABCto DMD_RGB

i.e :

DMD_RGB <RGB80x40plainS20, COLOR_4BITS> dmd(mux_list, DMD_PIN_nOE, DMD_PIN_SCLK, custom_rgbpins, DISPLAYS_ACROSS, DISPLAYS_DOWN, ENABLE_DUAL_BUFFER);

[maxmurugan]

is not clear message

[maxmurugan]

DMD_RGB_SHIFTREG_ABC class only working in this panel

[board707]

DMD_RGB_SHIFTREG_ABC class only working in this panel

Is it means that you see the text on the matrix or the "working" means you see the vertical lines only as on photo from the beginning of the topic?

[maxmurugan]

text on the matrix after few second verticals line showing using - DMD_RGB_SHIFTREG_ABC class

[board707]

I have no ideas, sorry. Test all your connections, try another Raspberry Pico and another panel... Try another time a new panel with previous library version. Please let me know if the things will change.

[maxmurugan]

ok i will try to change new module and library thanks

[maxmurugan]

hi sir Replace new type of module using same code test more then 12hours NO issue. working fine

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);

[board707]

Thank you for your feedback