合宙air001硬件spi驱动7针oled屏幕。

合宙air001真的便宜，只要0.7元

    他的hal库代码是稍微有一点点区别的

     评价：确实好用

上图

是不是很不错呢？

之前看到哪个大佬写的四针的驱动感觉非常不错，心想着能不能驱动7针，用硬件的方式

移植hal库

四针oled​​​​​​http://t.csdnimg.cn/FKMh9

这个是那位大佬写的，用gpio模拟翻转实现

七针oled代码如下

main.c

/**
  ******************************************************************************
  * @file    main.c
  * @author  MCU Application Team
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) AirM2M.
  * All rights reserved.</center></h2>
  *
  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "oled.h"

/* Private define ------------------------------------------------------------*/


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


DMA_HandleTypeDef HdmaCh1;
DMA_HandleTypeDef HdmaCh2;
DMA_HandleTypeDef HdmaCh3;

/* Private user code ---------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void APP_SystemClockConfig(void);


/**
  * @brief  应用程序入口函数.
  * @retval int
  */
int main(void)
{
  /* 复位所有外设，初始化flash接口和systick */
  HAL_Init();
  
  /* 时钟配置 */
  APP_SystemClockConfig();
  
  /* 初始化LED */
  BSP_LED_Init(LED_RED);

  /* 初始化按键BUTTON */
  BSP_PB_Init(BUTTON_KEY,BUTTON_MODE_GPIO);
  HAL_Delay(500);
 OLED_Init();
	
	HAL_Delay(500);
		OLED_ShowString(2,1,"aaaaa");
  while (1)
  {
//		OLED_Init();
//			OLED_ShowString(2,1,"aaaaa");
//		OLED_ShowString(2,1,"aaaaa");
		
  }
}

/**
  * @brief  系统时钟配置函数
  * @param  无
  * @retval 无
  */
static void APP_SystemClockConfig(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /*配置时钟源HSE/HSI/LSE/LSI*/
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;                                                      /* 开启HSI */
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_16MHz;                           /* 配置HSI输出时钟为16MHz */
  RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV1;                                                      /* HSI不分频 */
  RCC_OscInitStruct.HSEState = RCC_HSE_OFF;                                                     /* 关闭HSE */
  RCC_OscInitStruct.HSEFreq = RCC_HSE_16_32MHz;                                                 /* HSE工作频率范围16M~32M */
  RCC_OscInitStruct.LSIState = RCC_LSI_OFF;                                                     /* 关闭LSI */
  RCC_OscInitStruct.LSEState = RCC_LSE_OFF;                                                     /* 关闭LSE */
  RCC_OscInitStruct.LSEDriver = RCC_LSEDRIVE_MEDIUM;                                            /* LSE默认驱动能力 */
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_OFF;                                                  /* 关闭PLL */
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /* 初始化CPU,AHB,APB总线时钟 */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1; /* RCC系统时钟类型 */
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;                                        /* SYSCLK的源选择为HSI */
  RCC_ClkInitS