493 lines
8.2 KiB
C
493 lines
8.2 KiB
C
/*
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* oled.c
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*
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* Created on: 2022年4月15日
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* Author: wuwen
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*/
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#include "oled.h"
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#include "fonts.h"
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/*
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通过IIC发送指令到OLED
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*/
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void OLED_WrCmd(unsigned char IIC_Command)
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{
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uint8_t *pData;
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pData = &IIC_Command;
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IIC_SAND_DATE(OLED_ADDRESS,0x00,pData,1);
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}
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/*
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通过IIC发送数据到OLED
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*/
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void OLED_WrDat(unsigned char IIC_Data)
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{
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uint8_t *pData;
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pData = &IIC_Data;
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IIC_SAND_DATE(OLED_ADDRESS,0x40,pData,1);
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}
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/*
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设置硬件内的光标
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*/
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void OLED_Set_Pos(unsigned char x, unsigned char y)
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{
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OLED_WrCmd( 0xb0 + 7-y );
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OLED_WrCmd(((x&0xf0)>>4)|0x10);
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OLED_WrCmd( (x&0x0f) |0x00);
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}
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/*
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初始化硬件内存（显存）
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*/
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void OLED_Init_Display_Buffer(char a)
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{
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for(unsigned char y = 0;y < Y_WIDTH_;y++)
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{
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OLED_Set_Pos(0,y);
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for(unsigned char x = 0;x < X_WIDTH;x++)
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{
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OLED_WrDat(a);
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//HAL_Delay(1);
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}
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}
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}
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/*
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设置屏幕亮度
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*/
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void OLED_Setting_luminance(unsigned char a)
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{
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OLED_WrCmd(0x81);
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OLED_WrCmd(a*2.55);
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}
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/*
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初始化OLED
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硬件扫描方式
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从左到右从上到下
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纵向8点上高位
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*/
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void OLED_Init(void)
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{
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//HAL_Delay(200);
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OLED_WrCmd(0xAE); //关闭显示
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OLED_WrCmd(0xD5); //设置时钟分频因子,震荡频率
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OLED_WrCmd( 80); //[3:0],分频因子;[7:4],震荡频率
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OLED_WrCmd(0xA8); //设置驱动路数
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OLED_WrCmd(0X3F); //默认0X3F(1/64)
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OLED_WrCmd(0xD3); //设置显示偏移
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OLED_WrCmd(0X00); //默认为0
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OLED_WrCmd(0x40); //设置显示开始行 [5:0],行数.
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OLED_WrCmd(0x8D); //电荷泵设置
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OLED_WrCmd(0x14); //bit2，开启/关闭
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OLED_WrCmd(0x20); //设置内存地址模式
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OLED_WrCmd(0x02); //[1:0],00，列地址模式;01，行地址模式;10,页地址模式;默认10;
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OLED_WrCmd(0xA1); //段重定义设置,bit0:0,0->0;1,0->127;
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OLED_WrCmd(0xC0); //设置COM扫描方向;bit3:0,普通模式;1,重定义模式 COM[N-1]->COM0;N:驱动路数
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//OLED_WrCmd(0xDA); //设置COM硬件引脚配置
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//OLED_WrCmd(0x12); //[5:4]配置
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//显示方向设置
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//OLED_WrCmd(0xc8);//OLED_WrCmd(0xa0);
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//行扫描顺序：从上到下
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//列扫描顺序：从左到右
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OLED_WrCmd(0xD9); //设置预充电周期
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OLED_WrCmd(0xf1); //[3:0],PHASE 1;[7:4],PHASE 2;
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OLED_WrCmd(0xDB); //设置VCOMH 电压倍率
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OLED_WrCmd(0x30); //[6:4] 000,0.65*vcc;001,0.77*vcc;011,0.83*vcc;
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OLED_WrCmd(0xA4); //全局显示开启;bit0:1,开启;0,关闭;(白屏/黑屏)
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OLED_WrCmd(0xA6);
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//设置显示方式;bit0:1,反相显示;0,正常显示
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OLED_WrCmd(0xAF); //开启显示
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OLED_Init_Display_Buffer(0);
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}
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/*************************************************************************************************************************************************************************************/
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/*硬件与软件之间的部分*/
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/*
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定义显存
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*/
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char OLED_buff[Y_WIDTH_][X_WIDTH];
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/*
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加速缓存
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*/
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char OLED_speedup[Y_WIDTH_][X_WIDTH];
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/*
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将显存发送到硬件
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*/
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void OLED_Cache_to_hardware()
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{
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char b=0;
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for(uint8_t y=0;y<Y_WIDTH_;y++)
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{
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OLED_Set_Pos(0,y);
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for(uint8_t x=0;x<X_WIDTH;x++)
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{
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if(OLED_buff[y][x]!=OLED_speedup[y][x])
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{
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if(b==0){b=1;OLED_Set_Pos(x,y);}
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OLED_WrDat(OLED_buff[y][x]);
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OLED_speedup[y][x]=OLED_buff[y][x];
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}else
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{b=0;}
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OLED_buff[y][x]=0x00;
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}
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}
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}
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/*
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打点函数
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打点类型
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dot_type=0 清除点
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=1 打点
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=2 取反点
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*/
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void OLED_set_dot(unsigned char x,unsigned char y,unsigned char dot_type)
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{
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if(x>=X_WIDTH||y>=Y_WIDTH)
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{
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return ;
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}
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uint8_t y1=y/8;
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uint8_t y2=y%8;
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uint8_t y3=(0x80>>y2);
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char temp=OLED_buff[y1][x];
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switch(dot_type)
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{
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case 0:
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temp &= ~y3;
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break;
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case 1:
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temp |= y3;
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break;
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case 2:
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temp ^= y3;
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break;
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case 3:break;
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}
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OLED_buff[y1][x]=temp;
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}
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/*
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绘图函数
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数据格式 从左到右，从上到下，横向8点右高位
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type=0 清空区域
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=1 区域图层
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=2 正片叠底
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=3 正片清空
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=4 负片
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=5 正片负片
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*/
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void OLED_Pix(unsigned char x,unsigned char y,unsigned char w,unsigned char h,const char *p,unsigned char type)
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{
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unsigned char b=0;
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unsigned int c=0;
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for(uint8_t h1=0;h1<h;h1++)
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{
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for(uint8_t w1=0;w1<w;w1++)
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{
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if(p[c]&0x80>>b)
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{
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switch(type)
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{
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case 0:
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OLED_set_dot(w1+x,h1+y,0);
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break;
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case 1:
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OLED_set_dot(w1+x,h1+y,1);
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break;
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case 2:
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OLED_set_dot(w1+x,h1+y,1);
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break;
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case 3:
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OLED_set_dot(w1+x,h1+y,0);
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break;
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case 4:
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OLED_set_dot(w1+x,h1+y,0);
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break;
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case 5:
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OLED_set_dot(w1+x,h1+y,2);
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break;
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}
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}else
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{
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switch(type)
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{
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case 0:
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OLED_set_dot(w1+x,h1+y,0);
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break;
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case 1:
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OLED_set_dot(w1+x,h1+y,0);
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break;
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case 2:
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break;
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case 4:
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OLED_set_dot(w1+x,h1+y,1);
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break;
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}
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}
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b++;
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if(b==8)
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{
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b=0;c++;
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}
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}
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if(b!=0)
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{
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b=0;c++;
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}
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}
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}
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/*
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显示字符
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数据格式 从左到右，从上到下，横向8点左高位 （同一个函数实现的显示不知道为何这里要用左高位才能正常显示）
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type=0 清空区域
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=1 区域图层
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=2 正片叠底
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=3 正片清空
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=4 负片
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*/
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void OLED_Ascii(unsigned char x,unsigned char y,unsigned char size,char *chr,unsigned char type)
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{
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if(*chr>=' '&&*chr<='~')
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{
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switch(size)
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{
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case 8:
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OLED_Pix(x,y,5,8,asc2_0805[*chr-' '],type);
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break;
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case 12:
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OLED_Pix(x,y,6,12,asc2_1206[*chr-' '],type);
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break;
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case 16:
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OLED_Pix(x,y,8,16,asc2_1608[*chr-' '],type);
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break;
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}
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}
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}
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void OLED_Ch(unsigned char x,unsigned char y,unsigned char size,char *chr,unsigned char type)
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{
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unsigned int a=0,b=0;
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while(chfonst1616_index[a]!='\0')
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{
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if(chfonst1616_index[a]==chr[0]&&chfonst1616_index[a+1]==chr[1])
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{
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b=a/2;
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break;
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}
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a+=2;
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}
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OLED_Pix(x,y,16,16,chfonst1616[b],type);
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}
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void OLED_Str(unsigned char x,unsigned char y,unsigned char size,char *str,unsigned char lenconst,unsigned char type)
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{
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unsigned char size2;
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unsigned char tempx=x;
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unsigned char templenstard=1;
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switch(size)
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{
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case 8:
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size2=6;
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break;
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case 12:
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size2=7;
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break;
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case 16:
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size2=8;
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break;
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}
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while(*str!='\0')
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{
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if((x+size2>=X_WIDTH)||(*str=='\n'))
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{
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if(lenconst!=0)
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{
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if(templenstard>=lenconst)
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{
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return;
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}
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}
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templenstard++;
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y+=size;
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if(y>=Y_WIDTH)
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{
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//y=0;
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return;
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}
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x=tempx;
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}else
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{
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if(*str<127)
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{
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OLED_Ascii(x,y,size,str,type);
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x+=size2;
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}else
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{
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OLED_Ch(x,y,size,str,type);
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str++;
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x+=16;
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}
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}
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str++;
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}
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}
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void OLED_Str_list(unsigned char x,unsigned char y,unsigned char size,char *str,unsigned char lenstard,unsigned char lenconst,unsigned char type)
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{
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unsigned char templenstard=0;
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while(templenstard!=lenstard)//跳转到指定行
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{
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switch(*str)
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{
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case '\n': //如果是回车 行加加
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templenstard++;
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break;
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case '\0': //如果字符串提前结束 报错 直接返回
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return;
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}
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str++;
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}
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OLED_Str(x,y,size,str,lenconst,type);
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}
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/*
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几何绘图
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*/
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/*画横线*/
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void OLED_HL(unsigned char x,unsigned char y,unsigned char size,unsigned char dot_type)
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{
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}
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/*画竖线*/
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void OLED_VL(unsigned char x,unsigned char y,unsigned char size,unsigned char dot_type)
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{
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}
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/*画任意线*/
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void OLED_AL(int sx,int sy,int ex,int ey,unsigned char dot_type)
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{
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int dx,dy,absx,absy;
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//计算差
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dx=ex-sx;
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dy=ey-sy;
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//取绝对值 就是轴长
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absx=dx<0?0-dx:dx;
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absy=dy<0?0-dy:dy;
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if(dx==0)
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{
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if(dy>0)
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{
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for(int y=ey;y>sy;y--)
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{
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OLED_set_dot(sx,y,dot_type);
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}
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}else
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if(dy<0)
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{
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for(int y=ey;y<sy;y++)
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{
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OLED_set_dot(sx,y,dot_type);
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}
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}
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return ;
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}
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if(dy==0)
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{
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if(dx>0)
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{
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for(int x=ex;x>sx;x--)
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{
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OLED_set_dot(x,sy,dot_type);
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}
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}else
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if(dx<0)
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{
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for(int x=ex;x<sx;x++)
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{
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OLED_set_dot(x,sy,dot_type);
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}
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}
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return ;
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}
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if(dx==0&&dy==0)
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{
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//OLED_set_dot(sx,sy,dot_type);
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return ;
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}
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}
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/*画方框*/
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void OLED_square(int Start_x, int Start_y, int End_x, int End_y, char type)
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{
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if(Start_x > End_x){int i1 = Start_x; Start_x = End_x; End_x=i1;}
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if(Start_y > End_y){int i1 = Start_y; Start_y = End_y; End_y=i1;}
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for(; Start_x < End_x ; Start_x++)
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{
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for(int y2 = Start_y ; y2 < End_y ; y2++)
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{
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OLED_set_dot(Start_x, y2, type);
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}
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}
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}
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