里面有一些我自己写的函数你应该可以直接拿去用
HAL_I2C_Master_Transmit(&hi2c1, 0x78, OledInitCodes, sizeof(OledInitCodes), 10);是OLED初始化，初始化的代码存在了OledInitCodes这个数组里，0x80代表发送的是指令。
OLED_Clear(void);是清屏
OLED_Print(char *c, uint8_t line);是显示任意ascii字符，这个程序写的是按行显示的，第一个参数是字符指针，可以直接用双引号那种字符串，也可以把要显示的字符先用sprintf写进变量再调用，这两种用法我这个程序都用到了。line是要显示字符的行，一般是从0到6，每行显示16个字符，每行字符占用OLED的两行PAGE
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
** This notice applies to any and all portions of this file
* that are not between comment pairs USER CODE BEGIN and
* USER CODE END. Other portions of this file, whether
* inserted by the user or by software development tools
* are owned by their respective copyright owners.
*
* COPYRIGHT(c) 2018 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f1xx_hal.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
ADC_HandleTypeDef hadc1;
I2C_HandleTypeDef hi2c1;
TIM_HandleTypeDef htim2;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
uint8_t ASCII[] =
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",0*/
0x00,0x00,0x00,0xF8,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x17,0x17,0x00,0x00,0x00,/*"!",1*/
0x00,0x00,0x78,0x78,0x00,0x78,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*""",2*/
0x00,0x40,0xC0,0xF8,0x78,0xC0,0xF8,0x78,0x02,0x1E,0x1F,0x03,0x1E,0x1F,0x03,0x02,/*"#",3*/
0xE0,0xF0,0x10,0x18,0x18,0x10,0x30,0x20,0x08,0x19,0x11,0x71,0x71,0x11,0x1F,0x0E,/*"$",4*/
0x10,0x38,0x28,0x38,0x90,0xC0,0x60,0x30,0x08,0x0C,0x06,0x03,0x09,0x1C,0x14,0x1C,/*"%",5*/
0x00,0x70,0xF8,0x88,0x08,0x18,0x10,0x00,0x0E,0x1F,0x11,0x11,0x13,0x1E,0x0C,0x1E,/*"&",6*/
0x00,0x00,0x00,0x78,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"'",7*/
0x00,0x00,0x00,0xC0,0xF0,0x38,0x08,0x00,0x00,0x00,0x00,0x1F,0x7F,0xE0,0x80,0x00,/*"(",8*/
0x00,0x00,0x08,0x38,0xF0,0xC0,0x00,0x00,0x00,0x00,0x80,0xE0,0x7F,0x1F,0x00,0x00,/*")",9*/
0x80,0xA0,0xE0,0xE0,0xE0,0xE0,0xA0,0x80,0x00,0x02,0x03,0x03,0x03,0x03,0x02,0x00,/*"*",10*/
0x00,0x00,0x00,0xE0,0xE0,0x00,0x00,0x00,0x01,0x01,0x01,0x0F,0x0F,0x01,0x01,0x01,/*"+",11*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x38,0x38,0x18,0x08,0x00,/*",",12*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,/*"-",13*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x18,0x00,0x00,/*".",14*/
0x00,0x00,0x00,0x00,0x80,0xC0,0x60,0x30,0x08,0x0C,0x06,0x03,0x01,0x00,0x00,0x00,/*"/",15*/
0x00,0xF0,0xF8,0x08,0x08,0x08,0xF8,0xF0,0x00,0x0F,0x1F,0x10,0x10,0x10,0x1F,0x0F,/*"0",16*/
0x00,0x00,0x10,0x10,0xF8,0xF8,0x00,0x00,0x00,0x00,0x10,0x10,0x1F,0x1F,0x10,0x10,/*"1",17*/
0x00,0x10,0x18,0x08,0x08,0x88,0xF8,0x70,0x00,0x18,0x1C,0x16,0x13,0x11,0x10,0x10,/*"2",18*/
0x00,0x10,0x18,0x88,0x88,0x88,0xF8,0x70,0x00,0x08,0x18,0x10,0x10,0x10,0x1F,0x0F,/*"3",19*/
0x00,0x00,0x80,0xE0,0x70,0xF8,0xF8,0x00,0x00,0x03,0x03,0x02,0x12,0x1F,0x1F,0x12,/*"4",20*/
0x00,0xF8,0xF8,0x88,0x88,0x88,0x88,0x08,0x00,0x08,0x18,0x10,0x10,0x10,0x1F,0x0F,/*"5",21*/
0x00,0xE0,0xF0,0x98,0x88,0x88,0x88,0x00,0x00,0x0F,0x1F,0x11,0x10,0x10,0x1F,0x0F,/*"6",22*/
0x00,0x18,0x18,0x08,0x88,0xE8,0x78,0x18,0x00,0x00,0x18,0x1E,0x07,0x01,0x00,0x00,/*"7",23*/
0x00,0x70,0xF8,0x88,0x88,0x88,0xF8,0x70,0x00,0x0F,0x1F,0x10,0x10,0x10,0x1F,0x0F,/*"8",24*/
0x00,0xF0,0xF8,0x08,0x08,0x88,0xF8,0xF0,0x00,0x00,0x11,0x11,0x11,0x19,0x0F,0x07,/*"9",25*/
0x00,0x00,0x00,0xC0,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x18,0x00,0x00,/*":",26*/
0x00,0x00,0x00,0xC0,0xC0,0xC0,0x00,0x00,0x00,0x00,0x20,0x38,0x38,0x18,0x08,0x00,/*";",27*/
0x00,0x00,0x80,0xC0,0x60,0x30,0x10,0x00,0x00,0x01,0x03,0x06,0x0C,0x18,0x10,0x00,/*"<",28*/
0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x02,0x02,0x02,0x02,0x02,0x02,0x02,/*"=",29*/
0x00,0x10,0x30,0x60,0xC0,0x80,0x00,0x00,0x00,0x10,0x18,0x0C,0x06,0x03,0x01,0x00,/*">",30*/
0x00,0x10,0x18,0x08,0x08,0x88,0xF8,0x70,0x00,0x00,0x00,0x16,0x17,0x01,0x00,0x00,/*"?",31*/
0xE0,0xF0,0x98,0xC8,0x48,0xC8,0xD8,0xF0,0x0F,0x1F,0x33,0x27,0x24,0x27,0x27,0x27,/*"@",32*/
0x00,0x88,0xE8,0x78,0x78,0xE0,0x80,0x00,0x1C,0x1F,0x13,0x02,0x02,0x13,0x1F,0x1C,/*"A",33*/
0x08,0xF8,0xF8,0x88,0x88,0x88,0xF8,0x70,0x10,0x1F,0x1F,0x10,0x10,0x10,0x1F,0x0F,/*"B",34*/
0xE0,0xF0,0x18,0x08,0x08,0x18,0x78,0x78,0x07,0x0F,0x18,0x10,0x10,0x10,0x18,0x08,/*"C",35*/
0x08,0xF8,0xF8,0x08,0x08,0x18,0xF0,0xE0,0x10,0x1F,0x1F,0x10,0x10,0x18,0x0F,0x07,/*"D",36*/
0x08,0xF8,0xF8,0x88,0xC8,0xC8,0x18,0x18,0x10,0x1F,0x1F,0x10,0x11,0x11,0x18,0x18,/*"E",37*/
0x08,0xF8,0xF8,0x88,0xC8,0xC8,0x18,0x18,0x10,0x1F,0x1F,0x10,0x11,0x01,0x00,0x00,/*"F",38*/
0xE0,0xF0,0x18,0x08,0x08,0x18,0x78,0x78,0x07,0x0F,0x18,0x10,0x11,0x11,0x1F,0x0F,/*"G",39*/
0xF8,0xF8,0x88,0x80,0x80,0x88,0xF8,0xF8,0x1F,0x1F,0x10,0x00,0x00,0x10,0x1F,0x1F,/*"H",40*/
0x00,0x08,0x08,0xF8,0xF8,0x08,0x08,0x00,0x00,0x10,0x10,0x1F,0x1F,0x10,0x10,0x00,/*"I",41*/
0x00,0x00,0x00,0x08,0x08,0xF8,0xF8,0x08,0x0C,0x1C,0x10,0x10,0x10,0x1F,0x0F,0x00,/*"J",42*/
0x08,0xF8,0xF8,0x88,0xE8,0x78,0x18,0x08,0x10,0x1F,0x1F,0x11,0x03,0x06,0x1C,0x18,/*"K",43*/
0x08,0xF8,0xF8,0x08,0x08,0x00,0x00,0x00,0x10,0x1F,0x1F,0x10,0x10,0x10,0x18,0x18,/*"L",44*/
0xF8,0xF8,0xE0,0x80,0x80,0xE0,0xF8,0xF8,0x1F,0x1F,0x11,0x07,0x07,0x11,0x1F,0x1F,/*"M",45*/
0xF8,0xF8,0xE0,0xC0,0x08,0x08,0xF8,0xF8,0x1F,0x1F,0x10,0x11,0x07,0x0E,0x1F,0x1F,/*"N",46*/
0xE0,0xF0,0x18,0x08,0x08,0x18,0xF0,0xE0,0x07,0x0F,0x18,0x10,0x10,0x18,0x0F,0x07,/*"O",47*/
0x08,0xF8,0xF8,0x08,0x08,0x08,0xF8,0xF0,0x10,0x1F,0x1F,0x11,0x11,0x01,0x01,0x00,/*"P",48*/
0xE0,0xF0,0x18,0x08,0x08,0x18,0xF0,0xE0,0x07,0x4F,0x58,0x70,0x30,0x78,0x4F,0x47,/*"Q",49*/
0x08,0xF8,0xF8,0x08,0x08,0x08,0xF8,0xF0,0x10,0x1F,0x1F,0x11,0x03,0x07,0x1D,0x18,/*"R",50*/
0x70,0xF8,0x88,0x88,0x88,0x18,0x38,0x38,0x1C,0x1C,0x18,0x10,0x11,0x11,0x1F,0x0E,/*"S",51*/
0x18,0x08,0x08,0xF8,0xF8,0x08,0x08,0x18,0x00,0x10,0x10,0x1F,0x1F,0x10,0x10,0x00,/*"T",52*/
0xF8,0xF8,0x08,0x00,0x00,0x08,0xF8,0xF8,0x0F,0x0F,0x18,0x10,0x10,0x18,0x0F,0x0F,/*"U",53*/
0x38,0xF8,0xC8,0x00,0x00,0xC8,0xF8,0x38,0x00,0x01,0x07,0x1E,0x1E,0x07,0x01,0x00,/*"V",54*/
0xF8,0x88,0x80,0xE0,0xE0,0x80,0x88,0xF8,0x03,0x1F,0x1F,0x03,0x03,0x1F,0x1F,0x03,/*"W",55*/
0x18,0x38,0x68,0xC0,0xC0,0x68,0x38,0x18,0x18,0x1C,0x16,0x03,0x03,0x16,0x1C,0x18,/*"X",56*/
0x18,0x78,0xE8,0x80,0x80,0xE8,0x78,0x18,0x00,0x10,0x10,0x1F,0x1F,0x10,0x10,0x00,/*"Y",57*/
0x18,0x18,0x08,0x88,0xC8,0x68,0x38,0x18,0x18,0x1C,0x16,0x13,0x11,0x10,0x18,0x18,/*"Z",58*/
0x00,0x00,0x00,0xF8,0xF8,0x08,0x08,0x00,0x00,0x00,0x00,0xFF,0xFF,0x80,0x80,0x00,/*"[",59*/
0x10,0x30,0x60,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x06,0x0C,/*"\",60*/
0x00,0x00,0x08,0x08,0xF8,0xF8,0x00,0x00,0x00,0x00,0x80,0x80,0xFF,0xFF,0x00,0x00,/*"]",61*/
0x40,0x60,0x30,0x18,0x18,0x30,0x60,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"^",62*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,/*"_",63*/
0x00,0x00,0x08,0x18,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"`",64*/
0x00,0x40,0x40,0x40,0x40,0xC0,0x80,0x00,0x0E,0x1F,0x11,0x11,0x11,0x1F,0x1F,0x10,/*"a",65*/
0x08,0xF8,0xF8,0xC0,0x40,0xC0,0x80,0x80,0x10,0x1F,0x1F,0x18,0x10,0x18,0x0F,0x0F,/*"b",66*/
0x80,0x80,0xC0,0x40,0x40,0xC0,0xC0,0xC0,0x0F,0x0F,0x18,0x10,0x10,0x18,0x08,0x08,/*"c",67*/
0x80,0x80,0xC0,0x40,0xC8,0xF8,0xF8,0x00,0x0F,0x0F,0x18,0x10,0x18,0x1F,0x1F,0x10,/*"d",68*/
0x80,0x80,0xC0,0x40,0x40,0xC0,0x80,0x80,0x0F,0x0F,0x1A,0x12,0x12,0x1A,0x0B,0x0B,/*"e",69*/
0x00,0x80,0xF0,0xF8,0x88,0x88,0x18,0x10,0x00,0x10,0x1F,0x1F,0x10,0x10,0x00,0x00,/*"f",70*/
0x80,0x80,0xC0,0x40,0xC0,0xC0,0xC0,0x40,0x67,0xE7,0x8C,0x88,0x8C,0xFF,0x7F,0x00,/*"g",71*/
0x08,0xF8,0xF8,0xC0,0x40,0xC0,0x80,0x00,0x10,0x1F,0x1F,0x10,0x10,0x1F,0x1F,0x10,/*"h",72*/
0x00,0x40,0x40,0xC8,0xC8,0x00,0x00,0x00,0x00,0x10,0x10,0x1F,0x1F,0x10,0x10,0x00,/*"i",73*/
0x00,0x00,0x40,0x40,0xC8,0xC8,0x00,0x00,0x40,0xC0,0x80,0x80,0xFF,0x7F,0x00,0x00,/*"j",74*/
0x08,0xF8,0xF8,0x00,0xC0,0xC0,0x40,0x40,0x10,0x1F,0x1F,0x13,0x17,0x1C,0x18,0x10,/*"k",75*/
0x00,0x08,0x08,0xF8,0xF8,0x00,0x00,0x00,0x00,0x10,0x10,0x1F,0x1F,0x10,0x10,0x00,/*"l",76*/
0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0x1F,0x1F,0x10,0x1F,0x1F,0x10,0x1F,0x1F,/*"m",77*/
0x40,0xC0,0xC0,0xC0,0x40,0xC0,0x80,0x00,0x10,0x1F,0x1F,0x10,0x10,0x1F,0x1F,0x10,/*"n",78*/
0x80,0x80,0xC0,0x40,0x40,0xC0,0x80,0x80,0x0F,0x0F,0x18,0x10,0x10,0x18,0x0F,0x0F,/*"o",79*/
0x40,0xC0,0xC0,0xC0,0x40,0xC0,0x80,0x80,0x80,0xFF,0xFF,0x98,0x90,0x18,0x0F,0x0F,/*"p",80*/
0x80,0x80,0xC0,0x40,0xC0,0xC0,0xC0,0x40,0x0F,0x0F,0x18,0x90,0x98,0xFF,0xFF,0x80,/*"q",81*/
0x40,0x40,0xC0,0xC0,0xC0,0x40,0x40,0xC0,0x10,0x10,0x1F,0x1F,0x10,0x10,0x00,0x00,/*"r",82*/
0x80,0xC0,0x40,0x40,0x40,0x40,0xC0,0x80,0x09,0x1B,0x12,0x12,0x12,0x12,0x1E,0x0C,/*"s",83*/
0x40,0x40,0xF0,0xF0,0x40,0x40,0x40,0x00,0x00,0x00,0x0F,0x1F,0x10,0x10,0x18,0x08,/*"t",84*/
0x40,0xC0,0xC0,0x00,0x40,0xC0,0xC0,0x00,0x00,0x0F,0x1F,0x10,0x18,0x1F,0x1F,0x10,/*"u",85*/
0xC0,0xC0,0x40,0x00,0x00,0x40,0xC0,0xC0,0x00,0x03,0x0F,0x1C,0x1C,0x0F,0x03,0x00,/*"v",86*/
0xC0,0xC0,0x40,0xC0,0xC0,0x40,0xC0,0xC0,0x07,0x1F,0x1F,0x07,0x07,0x1F,0x1F,0x07,/*"w",87*/
0x40,0xC0,0xC0,0x40,0x40,0xC0,0xC0,0x40,0x10,0x18,0x1D,0x17,0x17,0x1D,0x18,0x10,/*"x",88*/
0xC0,0xC0,0x40,0x00,0x00,0x40,0xC0,0xC0,0x80,0x83,0xCF,0x7C,0x3C,0x0F,0x03,0x00,/*"y",89*/
0xC0,0xC0,0x40,0x40,0x40,0xC0,0xC0,0x40,0x10,0x18,0x1C,0x16,0x13,0x11,0x18,0x18,/*"z",90*/
0x00,0x00,0x00,0xF0,0xF8,0x08,0x08,0x00,0x00,0x02,0x02,0x7F,0xFD,0x80,0x80,0x00,/*"{",91*/
0x00,0x00,0x00,0xF8,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0x00,0x00,0x00,/*"|",92*/
0x00,0x00,0x08,0x08,0xF8,0xF0,0x00,0x00,0x00,0x00,0x80,0x80,0xFD,0x7F,0x02,0x02,/*"}",93*/
0x30,0x38,0x08,0x18,0x30,0x20,0x38,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"~",94*/
};
uint8_t OLED_Buffer[] =
{
0x80,0xB0,0x80,0x00,0x80,0x10,
0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,
0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,
0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,
0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,
0x80,0xB1,0x80,0x00,0x80,0x10,
0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,
0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,
0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,
0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0xC0,0x00,0x40,0x00,
};
uint8_t OledInitCodes[] =
{
0x80,0x81,//亮度设置
0x80,0x00,//00~FF
0x80,0xA4,//A4??,A5??
0x80,0xA6,//A6??,A7??
0x80,0xAF,//AE??,AF??
0x80,0xA8,
0x80,0x3F,
0x80,0xC8,//C0????,C8??
0x80,0xD3,
0x80,0x00,
0x80,0x40,
0x80,0xA1,//A0????,A1??
0x80,0xDA,
0x80,0x12,
0x80,0xD5,
0x80,0xF0,
0x80,0x8D,
0x80,0x14,
0x80,0x20,
0x80,0x02,
0x80,0xb0,
0x80,0x00,
0x00,0x10
};
uint8_t *pOLED_Buffer;
uint8_t *pASCII;
char cBuffer;
uint16_t ADC_Result;
uint16_t ADC_Result_Sum;
float ADC_Final_Result;
uint16_t ADC_Final_Result_d;
uint16_t ADC_Final_Result_f;
uint8_t Main_Status = 0;
uint8_t Random_Result;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);
static void MX_TIM2_Init(void);
static void MX_ADC1_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
void OLED_Clear(void);
void OLED_Print(char *c, uint8_t line);
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @briefThe application entry point.
*
* @retval None
*/
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();
MX_I2C1_Init();
MX_TIM2_Init();
MX_ADC1_Init();
/* USER CODE BEGIN 2 */
/* 等待OLED上电 */
HAL_Delay(100);
HAL_I2C_Master_Transmit(&hi2c1, 0x78, OledInitCodes, sizeof(OledInitCodes), 10);
OLED_Clear();
OLED_Print("Welcome!", 6);
/* ADC1自校准 */
HAL_ADCEx_Calibration_Start(&hadc1);
HAL_TIM_Base_Start_IT(&htim2);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
HAL_SuspendTick();
HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
HAL_ResumeTick();
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
switch(Main_Status++)
{
case 0:
HAL_ADC_Start(&hadc1);
ADC_Result_Sum = 0;
Random_Result = 0;
break;
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
ADC_Result = HAL_ADC_GetValue(&hadc1);
ADC_Result_Sum += ADC_Result;
Random_Result <<= 1;
Random_Result |= (ADC_Result & 0x01);
HAL_ADC_Start(&hadc1);
break;
case 8:
ADC_Result = HAL_ADC_GetValue(&hadc1);
ADC_Result_Sum += ADC_Result;
Random_Result <<= 1;
Random_Result |= (ADC_Result & 0x01);
sprintf(cBuffer, "Random = %d", Random_Result);
OLED_Print(cBuffer, 0);
sprintf(cBuffer, "ADC Value = %d", ADC_Result_Sum >> 3); //8次采样求平均
OLED_Print(cBuffer, 2);
ADC_Final_Result = ADC_Result_Sum * 3.358 / 4095 / 8; //电源电压3.358V
/* 由于sprintf不支持输出浮点变量，拆成两个整形分别输出 */
ADC_Final_Result_d = (uint16_t)ADC_Final_Result; //??????
ADC_Final_Result -= ADC_Final_Result_d; //??????
ADC_Final_Result_f = (uint16_t)(ADC_Final_Result * 1e03); //??????
sprintf(cBuffer, "Voltage = %d.%03dV", ADC_Final_Result_d, ADC_Final_Result_f);
OLED_Print(cBuffer, 4);
break;
default:
Main_Status = 0;
/* 翻转LED */
HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_13);
break;
}
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInit;
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI_DIV2;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL4;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Initializes the CPU, AHB and APB busses 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_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC;
PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV2;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure the Systick interrupt time
*/
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
/**Configure the Systick
*/
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* ADC1 init function */
static void MX_ADC1_Init(void)
{
ADC_ChannelConfTypeDef sConfig;
/**Common config
*/
hadc1.Instance = ADC1;
hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
hadc1.Init.ContinuousConvMode = DISABLE;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.NbrOfConversion = 1;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure Regular Channel
*/
sConfig.Channel = ADC_CHANNEL_1;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/* I2C1 init function */
static void MX_I2C1_Init(void)
{
hi2c1.Instance = I2C1;
hi2c1.Init.ClockSpeed = 400000;
hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/* TIM2 init function */
static void MX_TIM2_Init(void)
{
TIM_ClockConfigTypeDef sClockSourceConfig;
TIM_MasterConfigTypeDef sMasterConfig;
htim2.Instance = TIM2;
htim2.Init.Prescaler = 159;
htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
htim2.Init.Period = 4999;
htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE;
if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET);
/*Configure GPIO pin : PC13 */
GPIO_InitStruct.Pin = GPIO_PIN_13;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
void OLED_Clear(void)
{
for(uint16_t i = 7; i < 262; i+=2)
OLED_Buffer = 0x00;
for(uint16_t i = 269; i < 524; i+=2)
OLED_Buffer = 0x00;
OLED_Buffer = 0xB0;
OLED_Buffer = 0xB4;
HAL_I2C_Master_Transmit(&hi2c1, 0x78, OLED_Buffer, sizeof(OLED_Buffer), 50);
OLED_Buffer++;
OLED_Buffer++;
HAL_I2C_Master_Transmit(&hi2c1, 0x78, OLED_Buffer, sizeof(OLED_Buffer), 50);
OLED_Buffer++;
OLED_Buffer++;
HAL_I2C_Master_Transmit(&hi2c1, 0x78, OLED_Buffer, sizeof(OLED_Buffer), 50);
OLED_Buffer++;
OLED_Buffer++;
HAL_I2C_Master_Transmit(&hi2c1, 0x78, OLED_Buffer, sizeof(OLED_Buffer), 50);
}
void OLED_Print(char *c, uint8_t line)
{
uint8_t i, j;
OLED_Buffer = 0xB0 | (line & 0x07);
OLED_Buffer = 0xB0 | ((line + 1) & 0x07);
for(i = 0; i < 16; i++){
if(*c)
{
pASCII = ASCII + ((*c - 0x20) << 4);
pOLED_Buffer = OLED_Buffer + (i << 4) + 7;
for(j = 8; j; j--){
*pOLED_Buffer = *pASCII++;
pOLED_Buffer += 2;
}
pOLED_Buffer = OLED_Buffer + (i << 4) + 269;
for(j = 8; j; j--){
*pOLED_Buffer = *pASCII++;
pOLED_Buffer += 2;
}
c++;
}
else
{
pASCII = ASCII;
pOLED_Buffer = OLED_Buffer + (i << 4) + 7;
for(j = 8; j; j--){
*pOLED_Buffer = *pASCII++;
pOLED_Buffer += 2;
}
pOLED_Buffer = OLED_Buffer + (i << 4) + 269;
for(j = 8; j; j--){
*pOLED_Buffer = *pASCII++;
pOLED_Buffer += 2;
}
}
}
HAL_I2C_Master_Transmit(&hi2c1, 0x78, OLED_Buffer, sizeof(OLED_Buffer), 50);
}
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
if (htim->Instance == htim2.Instance)
{
}
}
/* USER CODE END 4 */
/**
* @briefThis function is executed in case of error occurrence.
* @paramfile: The file name as string.
* @paramline: The line in file as a number.
* @retval None
*/
void _Error_Handler(char *file, int line)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdefUSE_FULL_ASSERT
/**
* @briefReports the name of the source file and the source line number
* where the assert_param error has occurred.
* @paramfile: pointer to the source file name
* @paramline: 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,
tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
xmstudio 发表于 2018-3-13 23:58
我有一个写好的OLED程序，楼主可以参考一下。这个程序的功能是ADC采样，并且利用ADC噪声产生一个随机数显示 ...
感谢指点，我研究下这个办法，谢谢 注意IIC的时序，让IIC通讯任务的优先级高，千万不要在通讯过程中被其他任务打断
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