stm32f103c8t60.96oled显示屏llc四脚显示光照值oled.c代码

以下是基于STM32F103C8T6和0.96寸OLED屏幕的OLED显示屏驱动代码，包括初始化、清屏、显示字符串等操作：

#include "oled.h"
#include "stdlib.h"
#include "oledfont.h"

void OLED_WR_Byte(uint8_t dat, uint8_t cmd)
{
    if (cmd) OLED_DC_Set();
    else OLED_DC_Reset();

    OLED_CS_Reset();

    SPI1->DR = dat;

    while((SPI1->SR & SPI_I2S_FLAG_TXE) == 0);

    while((SPI1->SR & SPI_I2S_FLAG_BSY) != 0);

    OLED_CS_Set();
}

void OLED_Display_On(void)
{
    OLED_WR_Byte(0x8D, OLED_CMD);  //SET DCDC命令
    OLED_WR_Byte(0x14, OLED_CMD);  //DCDC ON
    OLED_WR_Byte(0xAF, OLED_CMD);  //DISPLAY ON
}

void OLED_Display_Off(void)
{
    OLED_WR_Byte(0x8D, OLED_CMD);  //SET DCDC命令
    OLED_WR_Byte(0x10, OLED_CMD);  //DCDC OFF
    OLED_WR_Byte(0xAE, OLED_CMD);  //DISPLAY OFF
}

void OLED_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_7;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);

    GPIO_SetBits(GPIOA, GPIO_Pin_5);
    GPIO_SetBits(GPIOA, GPIO_Pin_7);
    GPIO_SetBits(GPIOB, GPIO_Pin_6);

    OLED_WR_Byte(0xAE, OLED_CMD);  //DISPLAY OFF

    OLED_WR_Byte(0x00, OLED_CMD);  //SET LOW COLUMN ADDRESS
    OLED_WR_Byte(0x10, OLED_CMD);  //SET HIGH COLUMN ADDRESS

    OLED_WR_Byte(0x40, OLED_CMD);  //SET START LINE ADDRESS

    OLED_WR_Byte(0xB0, OLED_CMD);  //SET PAGE ADDRESS

    OLED_WR_Byte(0x81, OLED_CMD);  //SET CONTRAST CONTROL
    OLED_WR_Byte(0xCF, OLED_CMD);

    OLED_WR_Byte(0xA1, OLED_CMD);  //SET SEGMENT REMAP

    OLED_WR_Byte(0xA6, OLED_CMD);  //NORMAL DISPLAY

    OLED_WR_Byte(0xA8, OLED_CMD);  //SET MULTIPLEX RATIO
    OLED_WR_Byte(0x3F, OLED_CMD);

    OLED_WR_Byte(0xC8, OLED_CMD);  //SET COM SCAN DIRECTION

    OLED_WR_Byte(0xD3, OLED_CMD);  //SET DISPLAY OFFSET
    OLED_WR_Byte(0x00, OLED_CMD);

    OLED_WR_Byte(0xD5, OLED_CMD);  //SET DISPLAY CLOCK DIVIDE RATIO/OSCILLATOR FREQUENCY
    OLED_WR_Byte(0x80, OLED_CMD);

    OLED_WR_Byte(0xD9, OLED_CMD);  //SET PRE-CHARGE PERIOD
    OLED_WR_Byte(0xF1, OLED_CMD);

    OLED_WR_Byte(0xDA, OLED_CMD);  //SET COM PINS
    OLED_WR_Byte(0x12, OLED_CMD);

    OLED_WR_Byte(0xDB, OLED_CMD);  //SET VCOMH
    OLED_WR_Byte(0x40, OLED_CMD);

    OLED_WR_Byte(0x8D, OLED_CMD);  //SET DCDC命令
    OLED_WR_Byte(0x14, OLED_CMD);  //DCDC ON

    OLED_WR_Byte(0xAF, OLED_CMD);  //DISPLAY ON

    OLED_Clear();
}

void OLED_Clear(void)
{
    uint8_t i, n;

    for (i = 0; i < 8; i++)
    {
        OLED_WR_Byte(0xb0 + i, OLED_CMD);  //设置页地址（0~7）
        OLED_WR_Byte(0x00, OLED_CMD);  //设置显示位置—列低地址
        OLED_WR_Byte(0x10, OLED_CMD);  //设置显示位置—列高地址

        for (n = 0; n < 128; n++)
        {
            OLED_WR_Byte(0, OLED_DATA);
        }
    }
}

void OLED_ShowChar(uint8_t x, uint8_t y, uint8_t chr, uint8_t size)
{
    uint8_t c = 0, i = 0, j = 0;

    c = chr - ' ';  //得到偏移后的值

    if (x > 128 - 1 || y > 64 - 1)
    {
        return;
    }

    for (i = 0; i < size; i++)
    {
        for (j = 0; j < size; j++)
        {
            if (size == 12)
            {
                OLED_WR_Byte(F12x12[c * 24 + i * 2 + j], OLED_DATA);
            }
            else
            {
                OLED_WR_Byte(F6x8[c][i], OLED_DATA);
            }
        }

        y++;
        OLED_WR_Byte(0xb0 + y, OLED_CMD);
        OLED_WR_Byte(((x & 0xf0) >> 4) | 0x10, OLED_CMD);
        OLED_WR_Byte((x & 0x0f) | 0x01, OLED_CMD);
    }
}

void OLED_ShowString(uint8_t x, uint8_t y, char *chr, uint8_t size)
{
    while (*chr)
    {
        OLED_ShowChar(x, y, *chr, size);
        x += size / 2;
        chr++;
    }
}

其中，`OLED_WR_Byte`函数用于向OLED屏幕写入数据或命令，`OLED_Display_On`和`OLED_Display_Off`函数用于打开或关闭OLED屏幕，`OLED_Init`函数用于初始化OLED屏幕，`OLED_Clear`函数用于清屏，`OLED_ShowChar`函数用于显示单个字符，`OLED_ShowString`函数用于显示字符串。需要注意的是，字符和字符串的显示需要根据字体的大小进行相应的操作。