初始化毕业设计项目
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// ======================================================
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// OLED.c (最终修正版, 支持中文)
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// ======================================================
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#include "stm32f10x.h"
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#include "OLED_Font.h" // 包含ASCII和中文的字模
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/*引脚配置*/
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#define OLED_W_SCL(x) GPIO_WriteBit(GPIOB, GPIO_Pin_8, (BitAction)(x))
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#define OLED_W_SDA(x) GPIO_WriteBit(GPIOB, GPIO_Pin_9, (BitAction)(x))
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/* ... 从 OLED_I2C_Init() 到 OLED_ShowBinNum() 的所有函数保持不变 ... */
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/* ... 请确保您文件里这部分内容是完整的 ... */
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/*引脚初始化*/
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void OLED_I2C_Init(void)
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{
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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OLED_W_SCL(1);
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OLED_W_SDA(1);
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}
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void OLED_I2C_Start(void)
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{
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OLED_W_SDA(1);
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OLED_W_SCL(1);
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OLED_W_SDA(0);
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OLED_W_SCL(0);
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}
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void OLED_I2C_Stop(void)
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{
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OLED_W_SDA(0);
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OLED_W_SCL(1);
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OLED_W_SDA(1);
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}
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void OLED_I2C_SendByte(uint8_t Byte)
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{
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uint8_t i;
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for (i = 0; i < 8; i++)
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{
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OLED_W_SDA(Byte & (0x80 >> i));
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OLED_W_SCL(1);
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OLED_W_SCL(0);
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}
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OLED_W_SCL(1);
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OLED_W_SCL(0);
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}
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void OLED_WriteCommand(uint8_t Command)
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{
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OLED_I2C_Start();
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OLED_I2C_SendByte(0x78);
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OLED_I2C_SendByte(0x00);
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OLED_I2C_SendByte(Command);
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OLED_I2C_Stop();
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}
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void OLED_WriteData(uint8_t Data)
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{
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OLED_I2C_Start();
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OLED_I2C_SendByte(0x78);
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OLED_I2C_SendByte(0x40);
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OLED_I2C_SendByte(Data);
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OLED_I2C_Stop();
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}
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void OLED_SetCursor(uint8_t Y, uint8_t X)
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{
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OLED_WriteCommand(0xB0 | Y);
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OLED_WriteCommand(0x10 | ((X & 0xF0) >> 4));
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OLED_WriteCommand(0x00 | (X & 0x0F));
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}
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void OLED_Clear(void)
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{
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uint8_t i, j;
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for (j = 0; j < 8; j++)
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{
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OLED_SetCursor(j, 0);
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for(i = 0; i < 128; i++)
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{
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OLED_WriteData(0x00);
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}
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}
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}
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void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char)
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{
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uint8_t i;
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OLED_SetCursor((Line - 1) * 2, (Column - 1) * 8);
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for (i = 0; i < 8; i++)
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{
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OLED_WriteData(OLED_F8x16[Char - ' '][i]);
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}
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OLED_SetCursor((Line - 1) * 2 + 1, (Column - 1) * 8);
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for (i = 0; i < 8; i++)
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{
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OLED_WriteData(OLED_F8x16[Char - ' '][i + 8]);
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}
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}
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void OLED_ShowString(uint8_t Line, uint8_t Column, char *String)
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{
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uint8_t i;
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for (i = 0; String[i] != '\0'; i++)
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{
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OLED_ShowChar(Line, Column + i, String[i]);
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}
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}
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uint32_t OLED_Pow(uint32_t X, uint32_t Y)
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{
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uint32_t Result = 1;
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while (Y--)
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{
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Result *= X;
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}
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return Result;
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}
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void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
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{
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uint8_t i;
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for (i = 0; i < Length; i++)
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{
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OLED_ShowChar(Line, Column + i, Number / OLED_Pow(10, Length - i - 1) % 10 + '0');
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}
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}
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void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length)
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{
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uint8_t i;
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uint32_t Number1;
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if (Number >= 0)
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{
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OLED_ShowChar(Line, Column, '+');
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Number1 = Number;
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}
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else
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{
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OLED_ShowChar(Line, Column, '-');
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Number1 = -Number;
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}
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for (i = 0; i < Length; i++)
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{
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OLED_ShowChar(Line, Column + i + 1, Number1 / OLED_Pow(10, Length - i - 1) % 10 + '0');
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}
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}
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void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
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{
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uint8_t i, SingleNumber;
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for (i = 0; i < Length; i++)
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{
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SingleNumber = Number / OLED_Pow(16, Length - i - 1) % 16;
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if (SingleNumber < 10)
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{
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OLED_ShowChar(Line, Column + i, SingleNumber + '0');
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}
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else
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{
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OLED_ShowChar(Line, Column + i, SingleNumber - 10 + 'A');
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}
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}
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}
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void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
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{
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uint8_t i;
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for (i = 0; i < Length; i++)
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{
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OLED_ShowChar(Line, Column + i, Number / OLED_Pow(2, Length - i - 1) % 2 + '0');
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}
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}
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/**
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* @brief OLED显示一个16*16的汉字
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* @param Line 行位置，范围：1~4 (一个汉字占用2行高度)
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* @param Column 列位置，范围：1~8 (一个汉字占用2个字符宽度)
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* @param num 要显示的汉字在OLED_F16x16_CN字模数组中的索引
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* @retval 无
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*/
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void OLED_ShowChinese(uint8_t Line, uint8_t Column, uint8_t num)
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{
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uint8_t i;
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// 计算X坐标：一个汉字宽度为16像素，等于2个8像素的字符宽度
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uint8_t x = (Column - 1) * 16;
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// 计算Y坐标：一个汉字高度为16像素，等于2个8像素的行（页）高度
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uint8_t y = (Line - 1) * 2;
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// 检查坐标是否越界
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if (x > 127 || y > 7) return;
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// 显示上半部分 (16*8)
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OLED_SetCursor(y, x);
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for (i = 0; i < 16; i++)
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{
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OLED_WriteData(OLED_F16x16_CN[num][i]);
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}
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// 显示下半部分 (16*8)
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OLED_SetCursor(y + 1, x);
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for (i = 0; i < 16; i++)
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{
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OLED_WriteData(OLED_F16x16_CN[num][i + 16]);
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}
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}
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/* ... OLED_Init() 函数保持不变 ... */
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void OLED_Init(void)
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{
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uint32_t i, j;
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for (i = 0; i < 1000; i++)
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{
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for (j = 0; j < 1000; j++);
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}
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OLED_I2C_Init();
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OLED_WriteCommand(0xAE); //关闭显示
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OLED_WriteCommand(0xD5); //设置显示时钟分频比/振荡器频率
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OLED_WriteCommand(0x80);
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OLED_WriteCommand(0xA8); //设置多路复用率
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OLED_WriteCommand(0x3F);
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OLED_WriteCommand(0xD3); //设置显示偏移
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OLED_WriteCommand(0x00);
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OLED_WriteCommand(0x40); //设置显示开始行
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OLED_WriteCommand(0xA1); //设置左右方向，0xA1正常 0xA0左右反置
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OLED_WriteCommand(0xC8); //设置上下方向，0xC8正常 0xC0上下反置
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OLED_WriteCommand(0xDA); //设置COM引脚硬件配置
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OLED_WriteCommand(0x12);
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OLED_WriteCommand(0x81); //设置对比度控制
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OLED_WriteCommand(0xCF);
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OLED_WriteCommand(0xD9); //设置预充电周期
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OLED_WriteCommand(0xF1);
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OLED_WriteCommand(0xDB); //设置VCOMH取消选择级别
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OLED_WriteCommand(0x30);
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OLED_WriteCommand(0xA4); //设置整个显示打开/关闭
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OLED_WriteCommand(0xA6); //设置正常/倒转显示
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OLED_WriteCommand(0x8D); //设置充电泵
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OLED_WriteCommand(0x14);
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OLED_WriteCommand(0xAF); //开启显示
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OLED_Clear();
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}
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