概述
[本文发布地址https://blog.csdn.net/Stack_/article/details/124088511，未经许可不得转载，转载须注明出处]
一、全屏缓冲需要了解其驱动芯片SSD1306的RAM数据区和屏幕点阵的关系
由数据手册得知SSD1306有8页，将屏幕纵向分成64 / 8 = 8个块
每页有128个字节竖向排列代表128列
以上图页2为例，要点亮第2页第0行第0列（屏幕16行0列）交叉的像素时，向第2页第0列写入0x01;
要点亮第2页第5行第4列（屏幕21行4列）交叉的像素时，向第2页第4列写入0x20;
@ CSDN Tyrion.Mon
/* SSD1306 */
/* COL0 COL1 COL2 COL3........COL127
* PAGE0
* PAGE1
* PAGE2
* PAGE3
* PAGE4
* PAGE5
* PAGE6
* PAGE7
* (page0-page7地址:B0h~B7h)
* (col地址:8位地址-x,但需要拆分为H高4位和L低4位
* H(10h~1Fh), L(00h~0Fh), H = (x >> 4) | 0x10, L = (x & 0x0f)
* SEG0 SEG1 SEG2 ...... SEG127 (byte0-byte127:SEG0-SEG127)
* pagex: bit0 -- line0
* bit1 -- line1
* ...
* bit7 -- line7
*/
/*
* 单片机缓冲区, 将要显示的图形字符写入此缓冲区
* @ CSDN Tyrion.Mon
*/
unsigned char OLED12864_FullScreenBuffer[8][128];
/*
* 将坐标(x, y)的像素点熄灭（0）或点亮（1）
* 暂存至单片机缓冲区
* @ CSDN Tyrion.Mon
*/
void OLED_WriteBufferPoint(uint8_t pointX, uint8_t pointY, uint8_t pointVal)
{
if (pointX < 128 && pointY < 64)
{
if (!pointVal)
OLED12864_FullScreenBuffer[pointY / 8][pointX] &= ~(0x01 << (pointY % 8));
else
OLED12864_FullScreenBuffer[pointY / 8][pointX] |= 0x01 << (pointY % 8);
}
}
/*
* 清除屏幕显示（全屏清除）
* 暂存至单片机缓冲区
* @ CSDN Tyrion.Mon
*/
void OLED_Clear(void)
{
memset(OLED12864_FullScreenBuffer, 0, sizeof(OLED12864_FullScreenBuffer));
}
二、自动地址模式
商家提供的驱动初始化默认选择了页地址模式，需要将其修改为水平地址模式 Horizontal addressing mode，并在初始化中将地址定位到0行0列。这样后面刷新显示时只需顺序写入8x128个字节数据而无需指定地址
@ CSDN Tyrion.Mon
OLED_WR_Byte(0x20,OLED_CMD);// -Set Page Addressing Mode (0x00/0x01/0x02)
OLED_WR_Byte(0x02,OLED_CMD);//[1:0],00水平地址模式;01垂直地址模式模式;10,页地址模式;默认10;
初始化修改为
OLED_WR_Byte(0x20,OLED_CMD);// -Set Page Addressing Mode (0x00/0x01/0x02)
OLED_WR_Byte(0x00,OLED_CMD);//[1:0],00水平地址模式;01垂直地址模式模式;10,页地址模式;默认10;
初始化添加以下指令定位到0行0列
start_row = 0;
strat_col = 0;
OLED_WR_Byte (0xb0 + start_row ,OLED_CMD); //页起始地址
OLED_WR_Byte (0x10 | (strat_col >> 4),OLED_CMD); //列起始地址高4位
OLED_WR_Byte (strat_col & 0x0f,OLED_CMD); //列起始地址低4位
三、送显
在主循环的中调用清缓冲区 void OLED_Clear(void)
再调用void OLED_WriteBufferPoint(uint8_t pointX, uint8_t pointY, uint8_t pointVal)将显示数据写入缓冲区
最后调用void OLED12864_FlushFullScreen(void)刷新显示即可。或者用SPI DMA自动发送此缓冲数组以获得高帧率
/*
* 将单片机缓冲区的数据刷新至SSD1306的显示RAM中
* 初始化中设置了自动地址模式，不需要再指定地址
* @ CSDN Tyrion.Mon
*/
void OLED12864_FlushFullScreen(void)
{
uint8_t page = 0;
uint8_t col = 0;
uint8_t data = 0;
uint8_t i = 0;
DC_FOR_DATA();
CS_SELECT();
for(page = 0; page < 8; page++) // page0 - page7 (行0 - 行63)
{
for(col = 0; col < 128; col++)
{
data = OLED12864_FullScreenBuffer[page][col];
Spi1_SendByte(data);
}
}
CS_NOT_SELECT();
}
四、补充：字符写入缓冲区
1、写入取模的字符
@ CSDN Tyrion.Mon
void OLED_ShowChar(u8 x,u8 y,u8 chr)
{
unsigned char c=0,i=0;
uint8_t px_y = y;
uint8_t px_x = x;
if((x>127) || (y>63)) return;
c=chr-' '; //
for (px_x = x; px_x < (x + 8); px_x++)
{
for (i = 0; i < 8; i++)
{
if (F8X16[c][px_x - x] & (0x01 << i))
OLED12864_FullScreenBuffer[(px_y+i)/8][px_x] |= (0x01 << (px_y+i) % 8);
else
OLED12864_FullScreenBuffer[(px_y+i)/8][px_x] &= ~(0x01 << (px_y+i) % 8);
}
}
for (px_x = x; px_x < (x + 8); px_x++)
{
for (i = 0; i < 8; i++)
{
if (F8X16[c][px_x - x + 8] & (0x01 << i))
OLED12864_FullScreenBuffer[(px_y+i)/8 + 1][px_x] |= (0x01 << (px_y+i) % 8);
else
OLED12864_FullScreenBuffer[(px_y+i)/8 + 1][px_x] &= ~(0x01 << (px_y+i) % 8);
}
}
}
@ CSDN Tyrion.Mon
/****************************************8*16的点阵************************************/
const unsigned char F8X16[][16]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,// 60
0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};
2、写入字库的字符。关于字库的内容请查看另一篇文章
@ CSDN Tyrion.Mon
void OLED_Show_One_Ascii_FromFontIC(u8 x,u8 y,u8 *ascii)
{
unsigned char i=0;
uint8_t px_y = y;
uint8_t px_x = x;
uint8_t szhpArray[16];
if((x>127) || (y>63)) return;
GT20L16S1Y_Get_Bytes_ASCII_Bold_8x16(ascii, szhpArray);
for (px_x = x; px_x < (x + 8); px_x++)
{
for (i = 0; i < 8; i++)
{
if (szhpArray[px_x - x] & (0x01 << i))
OLED12864_FullScreenBuffer[(px_y+i)/8][px_x] |= (0x01 << (px_y+i) % 8);
else
OLED12864_FullScreenBuffer[(px_y+i)/8][px_x] &= ~(0x01 << (px_y+i) % 8);
}
}
for (px_x = x; px_x < (x + 8); px_x++)
{
for (i = 0; i < 8; i++)
{
if (szhpArray[px_x - x + 8] & (0x01 << i))
OLED12864_FullScreenBuffer[(px_y+i)/8 + 1][px_x] |= (0x01 << (px_y+i) % 8);
else
OLED12864_FullScreenBuffer[(px_y+i)/8 + 1][px_x] &= ~(0x01 << (px_y+i) % 8);
}
}
}
void OLED_Show_One_GB2312_FromFontIC(u8 x,u8 y,u8 *GB2312)
{
unsigned char i=0;
uint8_t px_y = y;
uint8_t px_x = x;
uint8_t szhpArray[32];
if((x>127) || (y>63)) return;
GT20L16S1Y_Get_Bytes_GB2312_15x16(GB2312, szhpArray);
for (px_x = x; px_x < (x + 16); px_x++)
{
for (i = 0; i < 16; i++)
{
if (szhpArray[px_x - x] & (0x01 << i))
OLED12864_FullScreenBuffer[(px_y+i)/8][px_x] |= (0x01 << (px_y+i) % 16);
else
OLED12864_FullScreenBuffer[(px_y+i)/8][px_x] &= ~(0x01 << (px_y+i) % 16);
}
}
for (px_x = x; px_x < (x + 16); px_x++)
{
for (i = 0; i < 16; i++)
{
if (szhpArray[px_x - x + 16] & (0x01 << i))
OLED12864_FullScreenBuffer[(px_y+i)/8 + 1][px_x] |= (0x01 << (px_y+i) % 16);
else
OLED12864_FullScreenBuffer[(px_y+i)/8 + 1][px_x] &= ~(0x01 << (px_y+i) % 16);
}
}
}
/**
* @brief
* @note LCD汉字和英文混合输出
* @param x：显示起始X坐标
y：显示起始Y坐标
*text：要显示的字符串
* @retval None
* @author PWH
* @date 2021/4
*/
void OLED_Display_AutoSelect_GB2312_ASCII(uint16_t x, uint16_t y, uint8_t *text)
{
while (*text != ' ')
{
if (*text & 0x80)
{
OLED_Show_One_GB2312_FromFontIC(x, y, text);
text += 2;
x += 16;
}
else
{
OLED_Show_One_Ascii_FromFontIC(x, y, text);
text += 1;
x += 8;
}
}
}
最后
以上就是隐形水蜜桃为你收集整理的OLED12864模块全屏缓冲刷新的全部内容，希望文章能够帮你解决OLED12864模块全屏缓冲刷新所遇到的程序开发问题。
如果觉得靠谱客网站的内容还不错，欢迎将靠谱客网站推荐给程序员好友。
本图文内容来源于网友提供，作为学习参考使用，或来自网络收集整理，版权属于原作者所有。
发表评论 取消回复