Unable to Drive SSD1322 (NHD‑2.7‑12864WDW3) OLED Module via SPI2 on STM32H755 Nucleo

[durna]

  

Hello,

I want to interface NHD-2.7-12864WDW3 OLED display with STM32H755 Nucleo and show some data in display

-4 wire SPI-. I had connected all OLED pins to STM32 correctly and than tried to flash this code (that I've attached). But i did not get any output, OLED display did not even glow.

I dont know where i am doing wrong, can you help me on this regard?

Pin 1 (VSS) → GND

Pin 2 (VDD) → +3.3 V

Pin 3 (NC / BC_VDD) → no connection

Pin 4 (D/C) → PA9 (GPIO Output)

Pin 5 (VSS) → GND

Pin 6 (VSS) → GND

Pin 7 (SCLK) → PB13 (SPI2_SCK, AF5)

Pin 8 (SDIN) → PB15 (SPI2_MOSI, AF5)

Pin 9 (NC) → no connection

Pin 10 (VSS) → GND

Pin 11 (VSS) → GND

Pin 12 (VSS) → GND

Pin 13 (VSS) → GND

Pin 14 (VSS) → GND

Pin 15 (NC / VCC sense) → no connection

Pin 16 (/RES) → PA10 (GPIO Output, active LOW reset)

Pin 17 (/CS) → PB2 (GPIO Output, active LOW chip‑select)

Pin 18 (/SHDN) → +3.3 V

Pin 19 (BS1) → GND (BS[1:0]=00 → 4‑wire SPI)

Pin 20 (BS1) → GND (BS[1:0]=00 → 4‑wire SPI)

Note: The pins seen as short circuit in the photo are GND pins.

  

[MM..1]

Maybe try start with basic return error chcecks

HAL_SPI_Transmit(&hspi2, (uint8_t*)buff, len, HAL_MAX_DELAY);

isnt very informative, better try

if ( HAL_SPI_Transmit(&hspi2, (uint8_t*)buff, len, HAL_MAX_DELAY) != HAL_OK ) ...
 

and MAX_DELAY use is next absurd... 

[durna]

Hello @MM..1 

I don't get any errors at these points.

[durna · Accepted solution]

I solved the problem, the problem was in the software. I am sharing the sample code. although not without problems, at least it gives an idea.

/* oled_ssd1322.h */

#ifndef OLED_SSD1322_H
#define OLED_SSD1322_H

#include "stm32h7xx_hal.h"

extern const uint8_t NHD_Logo[];

/* CubeMX ile üretilen SPI2 handle */
extern SPI_HandleTypeDef hspi2;

/* Kontrol pinleri */
#define SSD1322_DC_Port GPIOA
#define SSD1322_DC_Pin GPIO_PIN_9

#define SSD1322_RST_Port GPIOA
#define SSD1322_RST_Pin GPIO_PIN_10

#define SSD1322_CS_Port GPIOB
#define SSD1322_CS_Pin GPIO_PIN_2

/* Fonksiyon prototipleri */
void SSD1322_Init(void);
void SSD1322_Clear(void);
void SSD1322_FillCheckerboard(void);
void SSD1322_DisplayImage(const uint8_t *img);
void SSD1322_SetColumn(uint8_t start, uint8_t end);
void SSD1322_SetRow(uint8_t start, uint8_t end);

#endif /* OLED_SSD1322_H */

/* oled_ssd1322.c */

#include "oled_ssd1322.h"

/* Eğer logonuz büyükse, buraya extern olarak alın */
extern const uint8_t NHD_Logo[];

/* D/C#, CS# hızlı kontrol için inline */
static inline void CS_LOW (void) { HAL_GPIO_WritePin(SSD1322_CS_Port, SSD1322_CS_Pin, GPIO_PIN_RESET); }
static inline void CS_HIGH(void) { HAL_GPIO_WritePin(SSD1322_CS_Port, SSD1322_CS_Pin, GPIO_PIN_SET); }
static inline void DC_CMD (void) { HAL_GPIO_WritePin(SSD1322_DC_Port, SSD1322_DC_Pin, GPIO_PIN_RESET); }
static inline void DC_DAT (void) { HAL_GPIO_WritePin(SSD1322_DC_Port, SSD1322_DC_Pin, GPIO_PIN_SET); }

/* 8-bit komut gönderme */
static void SSD1322_Command(uint8_t cmd)
{
DC_CMD();
CS_LOW();
HAL_SPI_Transmit(&hspi2, &cmd, 1, HAL_MAX_DELAY);
CS_HIGH();
}

/* Veri bloğu gönderme */
static void SSD1322_Data(const uint8_t *buf, uint16_t len)
{
DC_DAT();
CS_LOW();
HAL_SPI_Transmit(&hspi2, (uint8_t*)buf, len, HAL_MAX_DELAY);
CS_HIGH();
}

/* /RST ile ~150 ms’lik reset palsi */
static void SSD1322_Reset(void)
{
HAL_GPIO_WritePin(SSD1322_RST_Port, SSD1322_RST_Pin, GPIO_PIN_RESET);
HAL_Delay(150);
HAL_GPIO_WritePin(SSD1322_RST_Port, SSD1322_RST_Pin, GPIO_PIN_SET);
HAL_Delay(150);
}

/* Kolon adres aralığı ayarı (0x15) */
void SSD1322_SetColumn(uint8_t a, uint8_t b)
{
SSD1322_Command(0x15);
SSD1322_Data((uint8_t[]){a, b}, 2);
}

/* Satır adres aralığı ayarı (0x75) */
void SSD1322_SetRow(uint8_t a, uint8_t b)
{
SSD1322_Command(0x75);
SSD1322_Data((uint8_t[]){a, b}, 2);
}

/* Write RAM komutu (0x5C) */
static void SSD1322_WriteRam(void)
{
SSD1322_Command(0x5C);
}

/* — Düzeltilmiş init sekansı — */
void SSD1322_Init(void)
{
SSD1322_Reset();

SSD1322_Command(0xAE); // Display OFF

SSD1322_Command(0xFD); SSD1322_Data((uint8_t[]){0x12},1); // Command Lock
SSD1322_Command(0xB3); SSD1322_Data((uint8_t[]){0x91},1); // Display Clock
SSD1322_Command(0xCA); SSD1322_Data((uint8_t[]){0x3F},1); // MUX Ratio
SSD1322_Command(0xA2); SSD1322_Data((uint8_t[]){0x00},1); // Display Offset
SSD1322_Command(0xAB); SSD1322_Data((uint8_t[]){0x01},1); // Function Select
SSD1322_Command(0xA1); SSD1322_Data((uint8_t[]){0x00},1); // Start Line

SSD1322_Command(0xA0);
SSD1322_Data((uint8_t[]){0x16,0x11},2); // Remap

SSD1322_Command(0xC7); SSD1322_Data((uint8_t[]){0x0F},1); // Master Contrast
SSD1322_Command(0xC1); SSD1322_Data((uint8_t[]){0x9F},1); // Contrast

SSD1322_Command(0xB1); SSD1322_Data((uint8_t[]){0x72},1); // Phase Length
SSD1322_Command(0xBB); SSD1322_Data((uint8_t[]){0x1F},1); // Precharge Voltage
SSD1322_Command(0xB4); SSD1322_Data((uint8_t[]){0xA0,0xFD},2);// External VSL
SSD1322_Command(0xBE); SSD1322_Data((uint8_t[]){0x04},1); // VCOMH

SSD1322_Command(0xA6); // Normal Display
SSD1322_Command(0xA9); // Exit Partial
SSD1322_Command(0xD1); SSD1322_Data((uint8_t[]){0xA2,0x20},2); // Display Enhancement
SSD1322_Command(0xB5); SSD1322_Data((uint8_t[]){0x00},1); // GPIO
SSD1322_Command(0xB9); // Default Grayscale
SSD1322_Command(0xB6); SSD1322_Data((uint8_t[]){0x08},1); // 2nd Precharge

SSD1322_Command(0xAF); // Display ON
}

/* Ekranı tamamen siyaha boyar */
void SSD1322_Clear(void)
{
SSD1322_SetColumn(0x1C,0x5B);
SSD1322_SetRow (0x00,0x3F);
SSD1322_WriteRam();

uint8_t z = 0x00;
for (int y=0; y<64; y++)
for (int x=0; x<64; x++)
SSD1322_Data(&z,1);
}

/* Satranç tahtası doldurma örneği */
void SSD1322_FillCheckerboard(void)
{
SSD1322_SetColumn(0x1C,0x5B);
SSD1322_SetRow (0x00,0x3F);
SSD1322_WriteRam();

uint8_t p=0xFF,q=0x00;
for (int i=0; i<32; i++){
for (int j=0; j<64; j++){
SSD1322_Data((j&1)?&q:&p,1);
SSD1322_Data((j&1)?&p:&q,1);
}
}
}

/* Arduino’dan gelen logo verisini gösterir */
void SSD1322_DisplayImage(const uint8_t *img)
{
SSD1322_SetColumn(0x1C,0x5B);
SSD1322_SetRow (0x00,0x3F);
SSD1322_WriteRam();

for (int i=0; i<64*16; i++, img++){
uint8_t b = *img;
for (int sh=6; sh>=0; sh-=2){
uint8_t px = (b >> sh) & 0x03;
uint8_t out = (px==3?0xFF: px==2?0xF0: px==1?0x0F:0x00);
SSD1322_Data(&out,1);
SSD1322_Data(&out,1);
}
}
}

[durna]

#include "oled_ssd1322.h"

const uint8_t NHD_Logo[] = {
0xFF, 0xEE, 0xDE, 0xEF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF,
0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED,
0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE,
0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFE, 0xED, 0xEE, 0xFF,
0xFF, 0xEE, 0xDE, 0xEF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF,
0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED,
0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE,
0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFE, 0xED, 0xEE, 0xFF,
0xFF, 0xFE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF,
0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED,
0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE,
0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEF, 0xFF,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xFE, 0xED, 0xEE, 0xFE, 0xED, 0xEF, 0xFE, 0xED, 0xEF, 0xFE, 0xED, 0xEF, 0xFE, 0xED,
0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF,
0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE,
0xDE, 0xEF, 0xFE, 0xDE, 0xEF, 0xFE, 0xDE, 0xEF, 0xFE, 0xDE, 0xEF, 0xEE, 0xDE, 0xEF, 0xEE, 0xEE,
0xEE, 0xEE, 0xFE, 0xED, 0xEE, 0xFE, 0xED, 0xEF, 0xFE, 0xED, 0xEF, 0xFE, 0xED, 0xEF, 0xFE, 0xED,
0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF,
0xFE, 0xDD, 0xEE, 0xEE, 0xDD, 0xEE, 0xEE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE,
0xDE, 0xEF, 0xFE, 0xDE, 0xEF, 0xFE, 0xDE, 0xEF, 0xFE, 0xDE, 0xEF, 0xEE, 0xDE, 0xEF, 0xEE, 0xEE,
0xDD, 0xEF, 0xFE, 0xED, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD,
0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF,
0xFE, 0xDD, 0xEF, 0xFE, 0xEE, 0xFF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE,
0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDE, 0xEF, 0xFE, 0xDD,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEF, 0xFE, 0xDC, 0xBB, 0xCD, 0xEF, 0xFE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xFF, 0xFE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF,
0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED,
0xEF, 0xD9, 0x52, 0x10, 0x00, 0x01, 0x25, 0x9C, 0xEE, 0xEE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE,
0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEF, 0xFF,
0xFF, 0xEE, 0xDE, 0xEF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF,
0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xEE, 0xFE,
0xA4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0xDF, 0xFE, 0xED, 0xDE, 0xFF, 0xED, 0xDE,
0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFE, 0xED, 0xEE, 0xFF,
0xFF, 0xFE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF,
0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xA3,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0xEF, 0xED, 0xDE, 0xFF, 0xED, 0xDE,
0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEF, 0xFF,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEF, 0xD5, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2A, 0xFE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xDD, 0xEF, 0xFE, 0xED, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD,
0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEE, 0xFA, 0x10, 0x00,
0x00, 0x00, 0x02, 0x58, 0xAB, 0xCC, 0xB9, 0x74, 0x10, 0x00, 0x00, 0x6E, 0xFE, 0xDD, 0xEF, 0xFE,
0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDE, 0xEF, 0xFE, 0xDD,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xED, 0xEF, 0x80, 0x00, 0x00,
0x00, 0x16, 0xBE, 0xFF, 0xEE, 0xFF, 0xFF, 0xEE, 0xDA, 0x50, 0x00, 0x03, 0xDE, 0xDE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xDD, 0xEF, 0xFE, 0xED, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD,
0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xF7, 0x00, 0x00, 0x00,
0x17, 0xDE, 0xFF, 0xEE, 0xDD, 0xEE, 0xEE, 0xDD, 0xEF, 0xFC, 0x60, 0x00, 0x2C, 0xED, 0xEF, 0xFE,
0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDD, 0xEF, 0xFE, 0xDE, 0xEF, 0xFE, 0xDD,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEF, 0x60, 0x00, 0x00, 0x06,
0xDF, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xFC, 0x50, 0x01, 0xDE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xFF, 0xFE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF,
0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xF7, 0x00, 0x00, 0x02, 0xAE,
0xEE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xEF, 0xFA, 0x10, 0x2E, 0xED, 0xDE,
0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEF, 0xFF,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xDF, 0xA0, 0x00, 0x00, 0x4D, 0xFD,
0xDE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xFE, 0xEE, 0xD4, 0x05, 0xED, 0xDE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xFF, 0xFE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF,
0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xEC, 0x00, 0x00, 0x06, 0xFF, 0xED,
0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xEF, 0x60, 0x8E, 0xDE,
0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEF, 0xFF,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xE2, 0x00, 0x00, 0x6F, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xF6, 0x0D, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
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0x50, 0x00, 0x00, 0xDF, 0xEB, 0x00, 0x00, 0x0C, 0xEF, 0xFF, 0xEE, 0xEF, 0xFF, 0xED, 0xEF, 0xFF,
0xEE, 0xEE, 0xEB, 0x00, 0x00, 0x04, 0xFE, 0xF8, 0x00, 0x00, 0x07, 0xE5, 0x00, 0x00, 0x2E, 0xEE,
0xF5, 0x00, 0x00, 0x2E, 0xEF, 0x90, 0x00, 0x00, 0xAE, 0xEE, 0x30, 0x00, 0x07, 0xFE, 0xEE, 0xEE,
0xEE, 0xEE, 0xED, 0x00, 0x00, 0x06, 0xEF, 0x80, 0x00, 0x00, 0xBE, 0xD1, 0x00, 0x00, 0x5E, 0xEE,
0x20, 0x00, 0x03, 0xEE, 0xF9, 0x00, 0x00, 0x2E, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xDD, 0xEE, 0xF7, 0x00, 0x00, 0x08, 0xED, 0xF5, 0x00, 0x00, 0x0A, 0xF2, 0x00, 0x00, 0x6F, 0xDE,
0xD1, 0x00, 0x00, 0x6F, 0xEF, 0x50, 0x00, 0x00, 0xDE, 0xEE, 0x10, 0x00, 0x0B, 0xFE, 0xDD, 0xDE,
0xED, 0xCD, 0xFB, 0x00, 0x00, 0x0A, 0xFE, 0x40, 0x00, 0x01, 0xDE, 0xB0, 0x00, 0x00, 0x9F, 0xFC,
0x00, 0x00, 0x06, 0xED, 0xF6, 0x00, 0x00, 0x5F, 0xEE, 0xDD, 0xDE, 0xED, 0xDE, 0xEF, 0xFE, 0xDD,
0xEE, 0xEE, 0xF4, 0x00, 0x00, 0x0C, 0xED, 0xE2, 0x00, 0x00, 0x0D, 0xD0, 0x00, 0x00, 0x9F, 0xDE,
0xB0, 0x00, 0x00, 0x9E, 0xEE, 0x10, 0x00, 0x03, 0xED, 0xFB, 0x00, 0x00, 0x1E, 0xFE, 0xE8, 0x01,
0x11, 0x1C, 0xF7, 0x00, 0x00, 0x0D, 0xFD, 0x10, 0x00, 0x04, 0xEE, 0x70, 0x00, 0x00, 0xCF, 0xE8,
0x00, 0x00, 0x0A, 0xED, 0xE2, 0x00, 0x00, 0x9E, 0xEE, 0xC1, 0x01, 0x10, 0x8E, 0xEE, 0xEE, 0xEE,
0xDD, 0xEF, 0xE1, 0x00, 0x00, 0x1E, 0xEE, 0xC0, 0x00, 0x00, 0x2F, 0xB0, 0x00, 0x00, 0xDE, 0xDF,
0x70, 0x00, 0x00, 0xCF, 0xFC, 0x00, 0x00, 0x06, 0xFD, 0xF8, 0x00, 0x00, 0x4E, 0xEE, 0xE4, 0x00,
0x00, 0x2D, 0xE3, 0x00, 0x00, 0x3F, 0xFB, 0x00, 0x00, 0x07, 0xEE, 0x40, 0x00, 0x02, 0xEE, 0xF5,
0x00, 0x00, 0x0C, 0xEE, 0xD0, 0x00, 0x00, 0xCE, 0xEE, 0x90, 0x00, 0x00, 0xAE, 0xEF, 0xFE, 0xDD,
0xEE, 0xEE, 0xB0, 0x00, 0x00, 0x2F, 0xEF, 0x90, 0x00, 0x00, 0x5F, 0x80, 0x00, 0x02, 0xEF, 0xDE,
0x40, 0x00, 0x02, 0xEE, 0xF8, 0x00, 0x00, 0x0A, 0xFE, 0xF4, 0x00, 0x00, 0x5F, 0xEF, 0xE1, 0x00,
0x00, 0x5E, 0xD1, 0x00, 0x00, 0x6E, 0xE9, 0x00, 0x00, 0x0B, 0xEE, 0x10, 0x00, 0x05, 0xFE, 0xD1,
0x00, 0x00, 0x3E, 0xEE, 0x90, 0x00, 0x00, 0xDF, 0xEF, 0x60, 0x00, 0x01, 0xDE, 0xEE, 0xEE, 0xEE,
0xFF, 0xEE, 0x90, 0x00, 0x00, 0x06, 0xD7, 0x10, 0x00, 0x00, 0xAF, 0x60, 0x00, 0x00, 0x77, 0x3D,
0x10, 0x00, 0x05, 0xFD, 0xE4, 0x00, 0x00, 0x0D, 0xFF, 0xE1, 0x00, 0x00, 0x18, 0xAB, 0x50, 0x00,
0x00, 0x8F, 0xB0, 0x00, 0x00, 0xAE, 0xE6, 0x00, 0x00, 0x1D, 0xFC, 0x00, 0x00, 0x09, 0xFE, 0xB0,
0x00, 0x00, 0x6F, 0xEF, 0x60, 0x00, 0x00, 0x59, 0xA9, 0x00, 0x00, 0x03, 0xFE, 0xED, 0xEF, 0xFF,
0xFF, 0xEF, 0x70, 0x00, 0x00, 0x01, 0xB0, 0x00, 0x00, 0x01, 0xEE, 0x50, 0x00, 0x00, 0x00, 0x4D,
0x00, 0x00, 0x08, 0xFD, 0xE2, 0x00, 0x00, 0x2E, 0xEF, 0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xBF, 0x90, 0x00, 0x00, 0xCE, 0xE4, 0x00, 0x00, 0x3E, 0xFA, 0x00, 0x00, 0x0C, 0xEE, 0x90,
0x00, 0x00, 0x8F, 0xEF, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xEE, 0xED, 0xEE, 0xFF,
0xFF, 0xEE, 0x90, 0x00, 0x00, 0x05, 0x90, 0x00, 0x00, 0x08, 0xFE, 0x50, 0x00, 0x00, 0x00, 0x8C,
0x00, 0x00, 0x09, 0xFD, 0xD1, 0x00, 0x00, 0x4F, 0xEF, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 0xEF, 0x80, 0x00, 0x00, 0xCE, 0xE3, 0x00, 0x00, 0x3F, 0xF9, 0x00, 0x00, 0x0C, 0xEE, 0x80,
0x00, 0x00, 0xAF, 0xEF, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0xFE, 0xED, 0xEE, 0xFF,
0xEE, 0xEE, 0xE2, 0x00, 0x00, 0x08, 0x50, 0x00, 0x00, 0x3E, 0xEE, 0xA0, 0x00, 0x00, 0x00, 0xBB,
0x00, 0x00, 0x08, 0xFE, 0xE1, 0x00, 0x00, 0x4F, 0xDE, 0xE4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0A, 0xEE, 0x80, 0x00, 0x00, 0xCE, 0xE2, 0x00, 0x00, 0x3E, 0xE8, 0x00, 0x00, 0x0A, 0xEE, 0x80,
0x00, 0x00, 0xAF, 0xDE, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5E, 0xEE, 0xEE, 0xEE, 0xEE,
0xDD, 0xEE, 0xFC, 0x52, 0x11, 0x1B, 0x41, 0x11, 0x38, 0xDE, 0xEE, 0xFA, 0x31, 0x01, 0x5B, 0xEC,
0x10, 0x00, 0x07, 0xFE, 0xF4, 0x11, 0x10, 0x3E, 0xDD, 0xED, 0x40, 0x00, 0x00, 0x00, 0x00, 0x02,
0x9F, 0xDE, 0xA1, 0x21, 0x11, 0xBF, 0xF4, 0x00, 0x00, 0x2D, 0xE9, 0x00, 0x00, 0x09, 0xFF, 0xA1,
0x11, 0x10, 0x9F, 0xDD, 0xF8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x15, 0xEE, 0xDE, 0xEF, 0xFE, 0xDD,
0xEE, 0xEE, 0xEF, 0xED, 0xDE, 0xEE, 0xDD, 0xDE, 0xFF, 0xED, 0xEF, 0xEF, 0xEC, 0xCE, 0xFF, 0xDE,
0xDD, 0xDD, 0xCD, 0xEE, 0xFE, 0xDD, 0xDD, 0xDE, 0xDD, 0xEF, 0xFD, 0xCC, 0xDD, 0xDD, 0xCC, 0xDE,
0xFE, 0xDD, 0xEE, 0xEE, 0xDD, 0xEF, 0xFD, 0xCC, 0xDD, 0xDE, 0xED, 0xDD, 0xDC, 0xCD, 0xEF, 0xFD,
0xDD, 0xDD, 0xEE, 0xDE, 0xEF, 0xEC, 0xCC, 0xDD, 0xDC, 0xCC, 0xDF, 0xFE, 0xDE, 0xEF, 0xEE, 0xEE,
0xEE, 0xEE, 0xFE, 0xDE, 0xEF, 0xFE, 0xEE, 0xEF, 0xEE, 0xEE, 0xEF, 0xEE, 0xEE, 0xEF, 0xEE, 0xED,
0xEF, 0xFF, 0xEE, 0xEF, 0xEE, 0xEE, 0xEF, 0xFE, 0xDD, 0xEE, 0xEE, 0xEE, 0xEF, 0xFE, 0xEE, 0xEF,
0xEE, 0xED, 0xEF, 0xFE, 0xEE, 0xEF, 0xFE, 0xEE, 0xFF, 0xFE, 0xDE, 0xFF, 0xFE, 0xEE, 0xEF, 0xFE,
0xEE, 0xFF, 0xFE, 0xEE, 0xEE, 0xFE, 0xEE, 0xFF, 0xFE, 0xEE, 0xFE, 0xEE, 0xDE, 0xEF, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xED, 0xDE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xED, 0xDE, 0xEE, 0xEE,
0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xED, 0xEE, 0xEE, 0xED, 0xDE, 0xEE, 0xEE, 0xEE,
0xEE, 0xED, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xED, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
0xFF, 0xEE, 0xDE, 0xEF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF, 0xEE, 0xDE, 0xFF,
0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED,
0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE, 0xFF, 0xED, 0xDE,
0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFF, 0xED, 0xEE, 0xFE, 0xED, 0xEE, 0xFF,
};

main.c

/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "oled_ssd1322.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

#ifndef HSEM_ID_0
#define HSEM_ID_0 (0U) /* HW semaphore 0*/
#endif
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

SPI_HandleTypeDef hspi2;

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI2_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */

/* USER CODE END 1 */
/* USER CODE BEGIN Boot_Mode_Sequence_0 */

/* USER CODE END Boot_Mode_Sequence_0 */

/* USER CODE BEGIN Boot_Mode_Sequence_1 */
/* Wait until CPU2 boots and enters in stop mode or timeout*/

/* USER CODE END Boot_Mode_Sequence_1 */
/* MCU Configuration--------------------------------------------------------*/

/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();

/* USER CODE BEGIN Init */

/* USER CODE END Init */

/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN Boot_Mode_Sequence_2 */
/* When system initialization is finished, Cortex-M7 will release Cortex-M4 by means of
HSEM notification */
/*HW semaphore Clock enable*/
__HAL_RCC_HSEM_CLK_ENABLE();
/*Take HSEM */
HAL_HSEM_FastTake(HSEM_ID_0);
/*Release HSEM in order to notify the CPU2(CM4)*/

/* USER CODE END Boot_Mode_Sequence_2 */

/* USER CODE BEGIN SysInit */

/* USER CODE END SysInit */

/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_SPI2_Init();
/* USER CODE BEGIN 2 */

/* USER CODE END 2 */

/* Infinite loop */
/* USER CODE BEGIN WHILE */

// Init ve test desenleri zaten var:
SSD1322_Init();
HAL_Delay(50);
SSD1322_Clear();
HAL_Delay(10);

SSD1322_FillCheckerboard();
HAL_Delay(1000);

SSD1322_Clear();
HAL_Delay(250);

// İşte logo çağrısı:
SSD1322_DisplayImage(NHD_Logo);
HAL_Delay(2000);

while (1)
{
/* USER CODE END WHILE */

/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}

[durna]

Data size must be 8 bits if you want to connect with 4 wire SPI

[Tesla DeLorean]

Edit, and use the </> icon to post code so the formatting is cleaner

[Tesla DeLorean]

Indeed, but the 3-Wire SPI is 9-Bit as the C/D bit is part of the data transferred. With 4-Wire SPI you drive the bit via a GPIO