303 lines
7.8 KiB
C
303 lines
7.8 KiB
C
/******************** (C) COPYRIGHT 2023 GeekRebot *****************************
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* File Name : oled.c
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* Current Version : V1.0 & ST 3.5.0
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* Author : zhanli 719901725@qq.com
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* Date of Issued : 2024.01.09
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* Comments : oled的iic方式驱动
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SCL -> PA10，SDA -> PA11
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********************************************************************************/
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#include "oled.h"
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#include "stdlib.h"
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#include "oledfont.h"
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#include "delay.h"
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#include "bsp_iic.h"
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// OLED的显存
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// 存放格式如下.
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//[0]0 1 2 3 ... 127
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//[1]0 1 2 3 ... 127
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//[2]0 1 2 3 ... 127
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//[3]0 1 2 3 ... 127
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//[4]0 1 2 3 ... 127
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//[5]0 1 2 3 ... 127
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//[6]0 1 2 3 ... 127
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//[7]0 1 2 3 ... 127
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void Write_IIC_Command(unsigned char IIC_Command)
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{
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IIC_Start();
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IIC_Send_Byte(0x78); // Slave address,SA0=0
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IIC_Wait_Ack();
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IIC_Send_Byte(0x00); // write command
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IIC_Wait_Ack();
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IIC_Send_Byte(IIC_Command);
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IIC_Wait_Ack();
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IIC_Stop();
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}
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/**********************************************
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// IIC Write Data
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**********************************************/
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void Write_IIC_Data(unsigned char IIC_Data)
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{
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IIC_Start();
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IIC_Send_Byte(0x78); // D/C#=0; R/W#=0
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IIC_Wait_Ack();
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IIC_Send_Byte(0x40); // write data
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IIC_Wait_Ack();
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IIC_Send_Byte(IIC_Data);
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IIC_Wait_Ack();
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IIC_Stop();
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}
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void OLED_WR_Byte(unsigned dat, unsigned cmd)
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{
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if (cmd)
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{
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Write_IIC_Data(dat);
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}
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else
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{
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Write_IIC_Command(dat);
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}
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}
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/********************************************
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// fill_Picture
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********************************************/
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void fill_picture(unsigned char fill_Data)
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{
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unsigned char m, n;
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for (m = 0; m < 8; m++)
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{
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OLED_WR_Byte(0xb0 + m, 0); // page0-page1
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OLED_WR_Byte(0x00, 0); // low column start address
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OLED_WR_Byte(0x10, 0); // high column start address
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for (n = 0; n < 128; n++)
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{
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OLED_WR_Byte(fill_Data, 1);
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}
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}
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}
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/***********************Delay****************************************/
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void Delay_50ms(unsigned int Del_50ms)
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{
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unsigned int m;
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for (; Del_50ms > 0; Del_50ms--)
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for (m = 6245; m > 0; m--);
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}
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void Delay_1ms(unsigned int Del_1ms)
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{
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unsigned char j;
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while (Del_1ms--)
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{
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for (j = 0; j < 123; j++);
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}
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}
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// 坐标设置
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void OLED_Set_Pos(unsigned char x, unsigned char y)
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{
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OLED_WR_Byte(0xb0 + y, OLED_CMD);
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OLED_WR_Byte(((x & 0xf0) >> 4) | 0x10, OLED_CMD);
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OLED_WR_Byte((x & 0x0f), OLED_CMD);
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}
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// 开启OLED显示
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void OLED_Display_On(void)
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{
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OLED_WR_Byte(0X8D, OLED_CMD); // SET DCDC命令
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OLED_WR_Byte(0X14, OLED_CMD); // DCDC ON
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OLED_WR_Byte(0XAF, OLED_CMD); // DISPLAY ON
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}
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// 关闭OLED显示
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void OLED_Display_Off(void)
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{
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OLED_WR_Byte(0X8D, OLED_CMD); // SET DCDC命令
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OLED_WR_Byte(0X10, OLED_CMD); // DCDC OFF
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OLED_WR_Byte(0XAE, OLED_CMD); // DISPLAY OFF
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}
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// 清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!
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void OLED_Clear(void)
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{
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u8 i, n;
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for (i = 0; i < 8; i++)
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{
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OLED_WR_Byte(0xb0 + i, OLED_CMD); // 设置页地址（0~7）
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OLED_WR_Byte(0x00, OLED_CMD); // 设置显示位置—列低地址
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OLED_WR_Byte(0x10, OLED_CMD); // 设置显示位置—列高地址
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for (n = 0; n < 128; n++)
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OLED_WR_Byte(0, OLED_DATA);
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} // 更新显示
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}
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void OLED_On(void)
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{
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u8 i, n;
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for (i = 0; i < 8; i++)
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{
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OLED_WR_Byte(0xb0 + i, OLED_CMD); // 设置页地址（0~7）
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OLED_WR_Byte(0x00, OLED_CMD); // 设置显示位置—列低地址
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OLED_WR_Byte(0x10, OLED_CMD); // 设置显示位置—列高地址
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for (n = 0; n < 128; n++)
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OLED_WR_Byte(1, OLED_DATA);
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} // 更新显示
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}
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// 在指定位置显示一个字符,包括部分字符
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// x:0~127
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// y:0~63
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// mode:0,反白显示;1,正常显示
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// size:选择字体 16/12
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void OLED_ShowChar(u8 x, u8 y, u8 chr, u8 Char_Size)
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{
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unsigned char c = 0, i = 0;
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c = chr - ' '; // 得到偏移后的值
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if (x > Max_Column - 1)
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{
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x = 0;
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y = y + 2;
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}
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if (Char_Size == 16)
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{
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OLED_Set_Pos(x, y);
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for (i = 0; i < 8; i++)
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OLED_WR_Byte(F8X16[c * 16 + i], OLED_DATA);
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OLED_Set_Pos(x, y + 1);
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for (i = 0; i < 8; i++)
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OLED_WR_Byte(F8X16[c * 16 + i + 8], OLED_DATA);
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}
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else
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{
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OLED_Set_Pos(x, y);
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for (i = 0; i < 6; i++)
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OLED_WR_Byte(F6x8[c][i], OLED_DATA);
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}
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}
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// m^n函数
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u32 oled_pow(u8 m, u8 n)
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{
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u32 result = 1;
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while (n--)
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result *= m;
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return result;
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}
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// 显示2个数字
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// x,y :起点坐标
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// len :数字的位数
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// size:字体大小
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// mode:模式 0,填充模式;1,叠加模式
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// num:数值(0~4294967295);
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void OLED_ShowNum(u8 x, u8 y, u32 num, u8 len, u8 size2)
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{
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u8 t, temp;
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u8 enshow = 0;
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for (t = 0; t < len; t++)
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{
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temp = (num / oled_pow(10, len - t - 1)) % 10;
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if (enshow == 0 && t < (len - 1))
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{
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if (temp == 0)
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{
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OLED_ShowChar(x + (size2 / 2) * t, y, ' ', size2);
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continue;
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}
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else
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enshow = 1;
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}
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OLED_ShowChar(x + (size2 / 2) * t, y, temp + '0', size2);
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}
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}
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// 显示一个字符号串
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void OLED_ShowString(u8 x, u8 y, u8 *chr, u8 Char_Size)
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{
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unsigned char j = 0;
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while (chr[j] != '\0')
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{
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OLED_ShowChar(x, y, chr[j], Char_Size);
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x += 8;
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if (x > 120)
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{
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x = 0;
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y += 2;
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}
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j++;
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}
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}
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// 显示汉字
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void OLED_ShowCHinese(u8 x, u8 y, u8 no)
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{
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u8 t, adder = 0;
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OLED_Set_Pos(x, y);
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for (t = 0; t < 16; t++)
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{
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OLED_WR_Byte(Hzk[2 * no][t], OLED_DATA);
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adder += 1;
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}
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OLED_Set_Pos(x, y + 1);
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for (t = 0; t < 16; t++)
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{
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OLED_WR_Byte(Hzk[2 * no + 1][t], OLED_DATA);
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adder += 1;
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}
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}
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/***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************/
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void OLED_DrawBMP(unsigned char x0, unsigned char y0, unsigned char x1, unsigned char y1, unsigned char BMP[])
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{
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unsigned int j = 0;
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unsigned char x, y;
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if (y1 % 8 == 0)
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y = y1 / 8;
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else
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y = y1 / 8 + 1;
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for (y = y0; y < y1; y++)
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{
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OLED_Set_Pos(x0, y);
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for (x = x0; x < x1; x++)
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{
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OLED_WR_Byte(BMP[j++], OLED_DATA);
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}
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}
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}
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// 初始化SSD1306
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void OLED_Init(void)
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{
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IIC_Init();
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Delay_ms(800);
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OLED_WR_Byte(0xAE, OLED_CMD); // Display off
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OLED_WR_Byte(0x00, OLED_CMD); // set low column address
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OLED_WR_Byte(0x10, OLED_CMD); // set high column address
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OLED_WR_Byte(0x40, OLED_CMD); // set start line address
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OLED_WR_Byte(0xB0, OLED_CMD); // set page address
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OLED_WR_Byte(0x81, OLED_CMD); // contract control
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OLED_WR_Byte(0xFF, OLED_CMD); // 128
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OLED_WR_Byte(0xA1, OLED_CMD); // set segment remap
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OLED_WR_Byte(0xA6, OLED_CMD); // normal / reverse
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OLED_WR_Byte(0xA8, OLED_CMD); // set multiplex ratio(1 to 64)
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OLED_WR_Byte(0x3F, OLED_CMD); // 1/32 duty
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OLED_WR_Byte(0xC8, OLED_CMD); // Com scan direction
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OLED_WR_Byte(0xD3, OLED_CMD); // Set display offset
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OLED_WR_Byte(0x00, OLED_CMD);
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OLED_WR_Byte(0xD5, OLED_CMD); // set osc division
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OLED_WR_Byte(0x80, OLED_CMD); //
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OLED_WR_Byte(0xD8, OLED_CMD); // set area color mode off
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OLED_WR_Byte(0x05, OLED_CMD); //
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OLED_WR_Byte(0xD9, OLED_CMD); // Set Pre-Charge Period
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OLED_WR_Byte(0xF1, OLED_CMD); //
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OLED_WR_Byte(0xDA, OLED_CMD); // set com pin configuartion
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OLED_WR_Byte(0x12, OLED_CMD); //
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OLED_WR_Byte(0xDB, OLED_CMD); // set Vcomh
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OLED_WR_Byte(0x30, OLED_CMD); //
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OLED_WR_Byte(0x8D, OLED_CMD); // set charge pump enable
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OLED_WR_Byte(0x14, OLED_CMD);
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OLED_WR_Byte(0xAF, OLED_CMD); // turn on oled panel
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}
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