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1.stm32使用SSD1322 驱动3.12寸OLED

news 来源：原创 2025/5/11 5:55:58

SSD1322 驱动3.12寸OLED

OLED型号：3.12LED屏模块-TW56640320B03

驱动器IC： SSD1322

传输方式：SPI(用IO口模拟SPI)

接线:SCLK→PB13 SDIN→PB15 DC#→PB4 RES#→PB3 CS#→GND

单片机: stm32f103ret6

驱动代码

//OLED.c
#include "gpio.h"
#include "OLED.h"
#include <stdio.h>// GPIO初始化
void OLED_GPIO_Init() {GPIO_InitTypeDef GPIO_InitStruct = {0};__HAL_RCC_GPIOB_CLK_ENABLE();// 配置SCLK、SDIN、DC、RES、CS为推挽输出GPIO_InitStruct.Pin = OLED_SCLK_PIN | OLED_SDIN_PIN | OLED_DC_PIN | OLED_RES_PIN ;GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;GPIO_InitStruct.Pull = GPIO_NOPULL;GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);// 硬件复位序列HAL_GPIO_WritePin(OLED_RES_PORT, OLED_RES_PIN, GPIO_PIN_RESET);HAL_Delay(20);HAL_GPIO_WritePin(OLED_RES_PORT, OLED_RES_PIN, GPIO_PIN_SET);HAL_Delay(100);
} // 写命令
void Write_Command(uint8_t cmd) {HAL_GPIO_WritePin(OLED_DC_PORT, OLED_DC_PIN, GPIO_PIN_RESET); // DC=0for(uint8_t i=0; i<8; i++) {HAL_GPIO_WritePin(OLED_SCLK_PORT, OLED_SCLK_PIN, GPIO_PIN_RESET);__NOP();HAL_GPIO_WritePin(OLED_SDIN_PORT, OLED_SDIN_PIN, (cmd & 0x80) ? GPIO_PIN_SET : GPIO_PIN_RESET);__NOP();cmd <<= 1;HAL_GPIO_WritePin(OLED_SCLK_PORT, OLED_SCLK_PIN, GPIO_PIN_SET);__NOP();}HAL_GPIO_WritePin(OLED_DC_PORT, OLED_DC_PIN, GPIO_PIN_SET); // DC=1__NOP();
}
// 写数据
void Write_Data(uint8_t data) {HAL_GPIO_WritePin(OLED_DC_PORT, OLED_DC_PIN, GPIO_PIN_SET); // DC=1for(uint8_t i=0; i<8; i++) {HAL_GPIO_WritePin(OLED_SCLK_PORT, OLED_SCLK_PIN, GPIO_PIN_RESET);__NOP();HAL_GPIO_WritePin(OLED_SDIN_PORT, OLED_SDIN_PIN, (data & 0x80) ? GPIO_PIN_SET : GPIO_PIN_RESET);__NOP();data <<= 1;HAL_GPIO_WritePin(OLED_SCLK_PORT, OLED_SCLK_PIN, GPIO_PIN_SET);__NOP();}
}// SSD1322初始化
void OLED_Init(void)
{OLED_GPIO_Init();HAL_GPIO_WritePin(OLED_RES_PORT, OLED_RES_PIN, GPIO_PIN_RESET); //oled resetHAL_Delay(10);HAL_GPIO_WritePin(OLED_RES_PORT, OLED_RES_PIN, GPIO_PIN_SET);Write_Command(0xfd);  /*Command Lock*/ Write_Data(0x12);Write_Command(0xae); //Sleep In Write_Command(0xb3);	//Set Display Clock Divide Ratio/Oscillator Frequency Write_Data(0x91);Write_Command(0xca);	//Set Multiplex Ratio Write_Data(0x3f);Write_Command(0xa2);	//Set Display Offset Write_Data(0x00);	//Write_Command(0xa1);	//Set Display Start Line Write_Data(0x00);	//Write_Command(0xa0);	//Set Re-Map $ Dual COM Line ModeWrite_Data(0x14);Write_Command(0xB5);	//Set GPIO Write_Data(0x00);Write_Command(0xab);	//Function SelectionWrite_Data(0x01);	//Write_Command(0xb4);	//Enable External VSL Write_Data(0xa0);	//Write_Data(0xfd);	//Write_Command(0xc1);	//Set Contrast CurrentWrite_Data(0xff);	Write_Command(0xc7);	//Master Contrast Current ControlWrite_Data(0x0f);	//Write_Command(0xb9);	//Select Default Linear Gray Scale Table Write_Command(0xb1);	//Set Phase LengthWrite_Data(0xe2);	Write_Command(0xd1);	//Enhance Driving Scheme Capability Write_Data(0x82);	Write_Data(0x20);	Write_Command(0xbb);	//Set Pre-Charge Voltage Write_Data(0x1f);	Write_Command(0xb6);	//Set Second Pre-Charge Period Write_Data(0x08);	Write_Command(0xbe);	//Set VCOMH Deselect Level Write_Data(0x07);		Write_Command(0xa6);	//Set Display Modefill(0,0);   //Clear ScreenWrite_Command(0xaf);	//Sleep Out
}// 清屏
void OLED_Clear() {Write_Command(0x15); Write_Data(0x00); Write_Data(0x7F); // 列地址Write_Command(0x75); Write_Data(0x00); Write_Data(0x3F); // 行地址Write_Command(0x5C); // 进入数据模式for(uint16_t i=0; i<128*64/2; i++) Write_Data(0x00); // 全屏熄灭
}void fill2(uint8_t brightness) {Write_Command(0x15); Write_Data(0x00); Write_Data(0x7F); // 列地址Write_Command(0x75); Write_Data(0x00); Write_Data(0x3F); // 行地址Write_Command(0x5C); // 进入数据模式for(uint16_t i=0; i<128*64; i++) Write_Data(brightness & 0x0F); // 4位数据
}void  fill(unsigned dat1,unsigned char dat2){unsigned char x,y; Write_Command(0x15); /*SET SECOND PRE-CHARGE PERIOD*/Write_Data(0x00); Write_Data(0x77);Write_Command(0x75);Write_Data(0x00);Write_Data(0x7f);Write_Command(0x5c);for(y=0;y<128;y++){for(x=0;x<120;x++)Write_Data(dat1);Write_Data(dat2);}
}

//OLEO.h
#ifndef __OLED_H
#define __OLED_H#include "stm32f1xx_hal.h"#define OLED_SCLK_PIN    GPIO_PIN_13
#define OLED_SCLK_PORT   GPIOB
#define OLED_SDIN_PIN    GPIO_PIN_15
#define OLED_SDIN_PORT   GPIOB
#define OLED_DC_PIN      GPIO_PIN_4
#define OLED_DC_PORT     GPIOB
#define OLED_RES_PIN     GPIO_PIN_3
#define OLED_RES_PORT    GPIOBextern uint8_t OLED_Buff[128][120]; // 128行 x 120列（每字节2像素）
// 函数声明
void OLED_Init(void);
void Write_Command(uint8_t cmd);
void Write_Data(uint8_t data);
void OLED_Clear(void);
void OLED_DrawPixel(uint8_t x, uint8_t y, uint8_t brightness);void OLED_TestPattern(void);
void Test_OLED_Simple(void);
void fill2(uint8_t brightness);
void  fill(unsigned dat1,unsigned char dat2);#endif

//main.c
/* USER CODE BEGIN Header */
/********************************************************************************* @file           : main.c* @brief          : Main program body******************************************************************************* @attention** Copyright (c) 2025 STMicroelectronics.* All rights reserved.** This software is licensed under terms that can be found in the LICENSE file* in the root directory of this software component.* If no LICENSE file comes with this software, it is provided AS-IS.********************************************************************************/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "gpio.h"
#include "stm32f1xx_hal.h"
#include "OLED.h"
#include "led.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes *//* USER CODE END Includes *//* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD *//* USER CODE END PTD *//* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD *//* USER CODE END PD *//* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM *//* USER CODE END PM *//* Private variables ---------------------------------------------------------*//* USER CODE BEGIN PV *//* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(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 *//* 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 SysInit *//* USER CODE END SysInit *//* Initialize all configured peripherals */MX_GPIO_Init();/* USER CODE BEGIN 2 */led_init();OLED_Init();fill(0xff, 0xff); // 全屏白色/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){/* USER CODE END WHILE */LED0(0);                                /* LED0 亮 */LED1(1);                                /* LED1 灭 */HAL_Delay(500);LED0(1);                                /* LED0 灭 */LED1(0);                                /* LED1 亮 */HAL_Delay(500);/* USER CODE BEGIN 3 */}/* USER CODE END 3 */
}/*** @brief System Clock Configuration* @retval None*/
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};/** Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;RCC_OscInitStruct.HSEState = RCC_HSE_ON;RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;RCC_OscInitStruct.HSIState = RCC_HSI_ON;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){Error_Handler();}/** Initializes the CPU, AHB and APB buses clocks*/RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK){Error_Handler();}
}/* USER CODE BEGIN 4 *//* USER CODE END 4 *//*** @brief  This function is executed in case of error occurrence.* @retval None*/
void Error_Handler(void)
{/* USER CODE BEGIN Error_Handler_Debug *//* User can add his own implementation to report the HAL error return state */__disable_irq();while (1){}/* USER CODE END Error_Handler_Debug */
}#ifdef  USE_FULL_ASSERT
/*** @brief  Reports the name of the source file and the source line number*         where the assert_param error has occurred.* @param  file: pointer to the source file name* @param  line: assert_param error line source number* @retval None*/
void assert_failed(uint8_t *file, uint32_t line)
{/* USER CODE BEGIN 6 *//* User can add his own implementation to report the file name and line number,ex: printf("Wrong parameters value: file %s on line %d\\r\\n", file, line) *//* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

现象：全屏点亮