P6 32x32 qiangli New MATRIX TYPES

[maxmurugan]

Hi sir

I am now using new p6 32x32 matrix with 1/8 scan
please check module picture and code

/*--------------------------------------------------------------------------------------
Demo for RGB panels

DMD_STM32a example code for STM32 and RP2040 boards

Pattern test for 32x16 1/2 1/4 RGB panels
------------------------------------------------------------------------------------- */
#include "DMD_RGB.h"
//Number of panels in x and y axis
#define RGB32x32_S8_maxmurugan 3,32,32,8,1 // 32x32 1/8 matrix from @maxmurugan

#define DISPLAYS_ACROSS 1
#define DISPLAYS_DOWN 1

// Output buffering - false
#define ENABLE_DUAL_BUFFER false

// ==== 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 };
#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 <RGB32x32_S8_maxmurugan, COLOR_4BITS> dmd(mux_list, DMD_PIN_nOE, DMD_PIN_SCLK, custom_rgbpins, DISPLAYS_ACROSS, DISPLAYS_DOWN, ENABLE_DUAL_BUFFER);
uint16_t bg = 0; // background - black
uint16_t fg = 0; // foreground

void setup(void)
{
dmd.init();
fg = dmd.Color888(0, 0, 255);
dmd.setBrightness(50);
}

void loop(void) {
// fill the matrix with points row by row
for (int i = 0; i < dmd.height(); i++) {
for (int j = 0; j < dmd.width(); j++) {
dmd.drawPixel(j,i, fg);
delay(40);
}
}
// clear the screen
dmd.fillScreen(bg);
}

Untitled.1.mp4

[board707]

Hi again :)

By info from the panel sticker, your matrix contains a two IC : DP5125C + DP32020
I didn't found any data about DP5125 driver, but DP32030 is stated as 595 type (shift register) decoding 8-channel display driver chip
So you need to try my DMD_RGB_SHIFTREG_ABC class.

[board707]

In your code above

1. Change the matrix define to:

#define RGB32x32_S8_maxmurugan2   3,32,32,8,0 // 32x32 1/8 

2. Call the matrix class as

 DMD_RGB_SHIFTREG_ABC <RGB32x32_S8_maxmurugan2, COLOR_4BITS> dmd(mux_list, DMD_PIN_nOE, DMD_PIN_SCLK, custom_rgbpins, DISPLAYS_ACROSS, DISPLAYS_DOWN, ENABLE_DUAL_BUFFER);

Leave other code not changed, run the test and show the results.

[maxmurugan]

Untitled.2.mp4

[board707]

something goes wrong...

[maxmurugan]

how to check?

[board707]

The main driver DP5125 is the same as in your issue #23, which we finally were able to run correctly.
The other IC Dp32020 is a 595 (SHIFTREG) type multiplexor, according to the info from the manufacturer site www.depuw.com.

So everything should work with this config. Please double check all connections, especially the connections of pins A B C on the panel and the corresponding pins on the RP Pico board.

If possible, ask the seller for datasheets for IC chips

[maxmurugan]

Issue#23 same wiring connection used

[board707]

Thank you.
Give me time to check one guess....

[board707]

Unfortunately, I have found that shift multiplexing currently doesn't work with Raspberry Pico.
It will take me a few days to fix this.

[maxmurugan]

ok sir

[board707]

Please replace two files in the library with files from archive and try the last test again

rp2040_shiftreg.zip

[maxmurugan]

Untitled.3.mp4

[maxmurugan]

please check

[board707]

Thank you,
Its great, the picture means that the shift_reg multiplexing now works.

Now we need to find the coordinate transformation, this may take time.

[maxmurugan]

ok sir than you.

[board707]

Hi
We'll have to do some tests.
Please replace one file in the library to file from archive.
Then add this lines to the beginning of the sketch:

#define RGB32x32_S8_maxmurugan3   3,32,32,8,1 // 32x32 1/8 
#define RGB32x32_S8_maxmurugan4   3,32,32,8,2 // 32x32 1/8 
#define RGB32x32_S8_maxmurugan5   3,32,32,8,33 // 32x32 1/8 

and run test for every of this matrix defines, show the results.

If you have any questions feel free to ask
Thank you
rp2040_shiftreg_2.zip

[maxmurugan]

#define RGB32x32_S8_maxmurugan3 3,32,32,8,1 // 32x32 1/8

RGB32x32_S8_maxmurugan3.mp4

[maxmurugan]

#define RGB32x32_S8_maxmurugan4 3,32,32,8,2 // 32x32 1/8

RGB32x32_S8_maxmurugan4.mp4

[maxmurugan]

#define RGB32x32_S8_maxmurugan5 3,32,32,8,33 // 32x32 1/8

Untitled.3.mp4

[maxmurugan]

sorry for the delay response

[maxmurugan]

I try your last option #define RGB32x32_S8_maxmurugan5 3,32,32,8,33 // 32x32 1/8

working but more then 1 panel scrolling issue

please check video

2.modue.MOV

file

[board707]

working but more then 1 panel scrolling issue

Sorry, last time I posted a wrong file. Test with this one and use this option:

 #define RGB32x32_S8_maxmurugan5 3,32,32,8,33 // 32x32 1/8

rp2040_shiftreg_3.zip

[maxmurugan]

it is showing error

C:\Pico_Arduino\libraries\DMD_STM32-dev-V2/DMD_Panel_Templates.h:206:10: error: 'uint16_t DMD_RGB<3, 32, 32, 8, 33, COL_DEPTH>::get_base_addr(int16_t, int16_t) [with int COL_DEPTH = 4; uint16_t = short unsigned int; int16_t = short int]' marked 'override', but does not override
206 | uint16_t get_base_addr(int16_t x, int16_t y) override {

[board707]

test this
rp2040_shiftreg_3_1.zip

[maxmurugan]

template
class DMD_RGB<RGB32x32_S8_maxmurugan, COL_DEPTH> : public DMD_RGB_BASE2<COL_DEPTH>
{
public:
DMD_RGB(uint8_t* mux_list, byte _pin_nOE, byte _pin_SCLK, uint8_t* pinlist,
byte panelsWide, byte panelsHigh, bool d_buf = false) :
DMD_RGB_BASE2<COL_DEPTH>(3, mux_list, _pin_nOE, _pin_SCLK, pinlist,
panelsWide, panelsHigh, d_buf, COL_DEPTH, 8, 32, 32)
{
this->fast_Hbyte = false;
this->use_shift = false;
}
// Fast text shift is disabled for complex patterns, so we don't need the method
void disableFastTextShift(bool shift) override {}
protected:
uint16_t get_base_addr(int16_t &x, int16_t &y) override {
this->transform_XY(x, y);
uint8_t pol_y = y % this->pol_displ;
x += (y / this->DMD_PIXELS_DOWN) * this->WIDTH;

	static const uint8_t A_tbl[16] = { 0,1,2,3,4,5,6,7,
                                               0,1,2,3,4,5,6,7 };
	static const uint8_t B_tbl[16] = { 1,1,1,1,1,1,1,1,
                                                0,0,0,0,0,0,0,0 };
	static const uint8_t C_tbl[8] = { 0,1,2,3,4,5,6,7 };
	static const uint8_t Pan_Okt_cnt = this->DMD_PIXELS_ACROSS / 8;
	uint8_t Oktet_m = B_tbl[pol_y] * Pan_Okt_cnt + (x / 8) % Pan_Okt_cnt;

	uint16_t base_addr = this->x_len * A_tbl[pol_y] + (x / this->DMD_PIXELS_ACROSS) * this->DMD_PIXELS_ACROSS * this->multiplex + C_tbl[Oktet_m] * 8;
	base_addr += x % 8;
	return base_addr;
}

};

this working morethen one module

[maxmurugan]

add extra line copy from old verstion

{
this->fast_Hbyte = false;
this->use_shift = false;
}
// Fast text shift is disabled for complex patterns, so we don't need the method
void disableFastTextShift(bool shift) override {}

[board707]

You are right, thank you!

[maxmurugan]

ok sir
thangs a lot

[board707]

Fixed in v1.0.6