Help with 32x64 Display

1

I recently bought some displays and want to get them running with Teensy 4.0 and SmartLED shield.

I’m using Adafruit_Gfx example with these settings

const uint16_t kMatrixWidth = 64;
const uint16_t kMatrixHeight = 32;
const uint8_t kRefreshDepth = 36;
const uint8_t kDmaBufferRows = 4;
const uint8_t kPanelType = 1;
const uint32_t kMatrixOptions = (SM_HUB75_OPTIONS_NONE);

My problem is that the first 8 rows looks good. Rows 9-16 and 17 to 24 are kinda exchanged. And the bottom lines are okay aswell

2025-06-21 20.36.39
2025-06-21 20.36.391920×1446 254 KB

2

This would be the picture edited with gimp

2025-06-21 20.36.39_modified
2025-06-21 20.36.39_modified1920×1446 255 KB

3

kPanelType Needs to match your panel. Use SM_PANELTYPE_HUB75_32ROW_MOD16SCAN

4

Hey there,

I used this setting and it didnt really fit (it showed dots on other line aswell)

The closest was just with SM_PANELTYPE_HUB75_16ROW_MOD8SCAN (the panel is also labeled with (8s))

I’m currently trying out to setup a MatrixPanelMaps.cpp

5

I got it working using type SM_PANELTYPE_HUB75_32ROW_64COL_MOD8SCAN

thanks for your help