0.96寸oled屏光标设置问题？

Peifeng · 发表于 2020-5-28 18:27:48

有哪位大神能讲一下oled设置光标的代码，代码如下：
/*
函数功能: 设置光标位置
函数参数: x列的起始位置(0~127)
   y页的起始位置(0~7)
比如: 0x8  高4位0000 低4位1000
*/
void oled_setpos(unsigned char x,unsigned char y)
{
OLED_WR_Byte(0xB0+y,OLED_CMD); //设置页地址

OLED_WR_Byte((x&0xF0)>>4|0x10,OLED_CMD);
OLED_WR_Byte((x&0x0F)|0x00,OLED_CMD);
}

完整代码如下

#include "oled.h"
#include "codetab.h"

void OLED_WR_Byte(unsigned char dat,OLED_WR_MODE cmd)
{
uint8_t write[2] = {0};
write[1] = dat;
switch(cmd)
{
case OLED_CMD:
write[0] = 0x00;
break;
case OLED_DATA:
write[0] = 0x40;
break;
}

HAL_I2C_Master_Transmit(&hi2c1, 0x78, write, 2, HAL_MAX_DELAY);
}

void oled_init(void)
{
HAL_Delay(1000);//Ñóê±1s

OLED_WR_Byte(0xAE, OLED_CMD);//Set Display ON/OFF (AEh/AFh)

OLED_WR_Byte(0x20, OLED_CMD);
OLED_WR_Byte(0x10, OLED_CMD);//Set Higher Column Start Address for Page Addressing Mode (10h~1Fh)
OLED_WR_Byte(0xB0, OLED_CMD);//Set Display Start Line (40h~7Fh)
OLED_WR_Byte(0xC8, OLED_CMD);//Set COM Output Scan Direction (C0h/C8h)

OLED_WR_Byte(0x00, OLED_CMD);//Set Lower Column Start Address for Page Addressing Mode (00h~0Fh)

OLED_WR_Byte(0x10, OLED_CMD);
OLED_WR_Byte(0x40, OLED_CMD);//Set Memory Addressing Mode (20h/21/22h)
OLED_WR_Byte(0x81, OLED_CMD);//Set Contrast Control for BANK0 (81h)
OLED_WR_Byte(0xA1, OLED_CMD);//Set Segment Re-map (A0h/A1h)
OLED_WR_Byte(0xA6, OLED_CMD);//Entire Display ON (A4h/A5h)
OLED_WR_Byte(0xA8, OLED_CMD);//Set Normal/Inverse Display (A6h/A7h)
OLED_WR_Byte(0x3F, OLED_CMD);//Set Multiplex Ratio (A8h)

OLED_WR_Byte(0xA4, OLED_CMD);//Set Lower Column Start Address for Page Addressing Mode (00h~0Fh)

OLED_WR_Byte(0xD3, OLED_CMD);//Set Display Offset (D3h)
OLED_WR_Byte(0x00, OLED_CMD);
OLED_WR_Byte(0xD5, OLED_CMD);//Set Display Clock Divide Ratio/ Oscillator Frequency (D5h)
OLED_WR_Byte(0x80, OLED_CMD);//Set Pre-charge Period (D9h)
OLED_WR_Byte(0xD9, OLED_CMD);//Set COM Pins Hardware Configuration (DAh)
OLED_WR_Byte(0x1F, OLED_CMD);//Set VCOMH Deselect Level (DBh)

OLED_WR_Byte(0xDA, OLED_CMD);
OLED_WR_Byte(0x12, OLED_CMD);
OLED_WR_Byte(0xDB, OLED_CMD);
OLED_WR_Byte(0x30, OLED_CMD);
OLED_WR_Byte(0x8D, OLED_CMD);
OLED_WR_Byte(0x10, OLED_CMD);
/*
OLED_WR_Byte(0xAE, OLED_CMD);//Set Display ON/OFF (AEh/AFh)

OLED_WR_Byte(0x00, OLED_CMD);//Set Lower Column Start Address for Page Addressing Mode (00h~0Fh)
OLED_WR_Byte(0x10, OLED_CMD);//Set Higher Column Start Address for Page Addressing Mode (10h~1Fh)
OLED_WR_Byte(0x20, OLED_CMD);//Set Memory Addressing Mode (20h/21/22h)
OLED_WR_Byte(0x40, OLED_CMD);//Set Display Start Line (40h~7Fh)
OLED_WR_Byte(0x81, OLED_CMD);//Set Contrast Control for BANK0 (81h)
OLED_WR_Byte(0xA1, OLED_CMD);//Set Segment Re-map (A0h/A1h)
OLED_WR_Byte(0xA4, OLED_CMD);//Entire Display ON (A4h/A5h)
OLED_WR_Byte(0xA6, OLED_CMD);//Set Normal/Inverse Display (A6h/A7h)
OLED_WR_Byte(0xA8, OLED_CMD);//Set Multiplex Ratio (A8h)

OLED_WR_Byte(0xC8, OLED_CMD);//Set COM Output Scan Direction (C0h/C8h)
OLED_WR_Byte(0xD3, OLED_CMD);//Set Display Offset (D3h)
OLED_WR_Byte(0xD5, OLED_CMD);//Set Display Clock Divide Ratio/ Oscillator Frequency (D5h)
OLED_WR_Byte(0xD9, OLED_CMD);//Set Pre-charge Period (D9h)
OLED_WR_Byte(0xDA, OLED_CMD);//Set COM Pins Hardware Configuration (DAh)
OLED_WR_Byte(0xDB, OLED_CMD);//Set VCOMH Deselect Level (DBh)
*/
//OLED_WR_Byte(0x00, OLED_CMD);//-not offset
/*
OLED_WR_Byte(0x02, OLED_CMD);//
OLED_WR_Byte(0x12, OLED_CMD);
OLED_WR_Byte(0x14, OLED_CMD);//--set(0x10) disable
OLED_WR_Byte(0x3f, OLED_CMD);//--1/64 duty
OLED_WR_Byte(0x40, OLED_CMD);//Set VCOM Deselect Level
OLED_WR_Byte(0x80, OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
OLED_WR_Byte(0x8D, OLED_CMD);//--set Charge Pump enable/disable
OLED_WR_Byte(0xCF, OLED_CMD); // Set SEG Output Current Brightness
OLED_WR_Byte(0xF1, OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
*/
OLED_WR_Byte(0xAF, OLED_CMD); //Set Display ON/OFF (AEh/AFh)

}

/*
函数功能: 设置光标位置
函数参数: x列的起始位置(0~127)
   y页的起始位置(0~7)
比如: 0x8  高4位0000 低4位1000
*/
void oled_setpos(unsigned char x,unsigned char y)
{
OLED_WR_Byte(0xB0+y,OLED_CMD); //设置页地址

OLED_WR_Byte((x&0xF0)>>4|0x10,OLED_CMD);
OLED_WR_Byte((x&0x0F)|0x00,OLED_CMD);
}

void oled_fill(unsigned char fill_data)
{
unsigned char m,n;
for(m=0;m<8;m++)
{
OLED_WR_Byte(0xb0+m, OLED_CMD);//éèÖ&#195

AGEμØÖ·(0~7)
OLED_WR_Byte(0x00, OLED_CMD);//éèÖÃÏÔê¾Î»ÖÃ￡¬áDμíμØÖ·
OLED_WR_Byte(0x10, OLED_CMD);//éèÖÃÏÔê¾Î»ÖÃ￡¬áD¸ßμØÖ·

for(n=0;n<128;n++)
{
OLED_WR_Byte(fill_data, OLED_DATA);
}
}
}
//ÇåÆ½
void oled_cls(void)
{
oled_fill(0x00);
}
//′óËˉÃßÖD»½DÑoled
void oled_on(void)
{
OLED_WR_Byte(0x8d, OLED_CMD);//set dcdcÃüáî  μçoé±Ã
OLED_WR_Byte(0x14, OLED_CMD);//dcdc  on ¿aÆôμçoé±Ã
OLED_WR_Byte(0xAF, OLED_CMD);//display  on oled»½DÑ
}
//èÃOLEDDYÃß
void oled_off(void)
{
OLED_WR_Byte(0X8D, OLED_CMD);//éèÖÃμçoé±Ã
OLED_WR_Byte(0X10, OLED_CMD);//1Ø±Õμçoé±Ã
OLED_WR_Byte(0XAE, OLED_CMD);//OLEDDYÃß
}
//ÏÔê¾codetable.hÖDμÄascii×Ö·û￡¬óD6*8oí8*16¿éÑ¡Ôñ
void oled_showstr(unsigned char x,unsigned char y, unsigned char ch[],unsigned char text_size)
{
unsigned char c = 0,i = 0,j = 0;
switch(text_size)
{
case 1:
{
while(ch[j] != '\0')
{
c = ch[j] - 32;
if(x > 126)
{
x = 0;
y++;
}
oled_setpos(x,y);
for(i=0;i<6;i++)
OLED_WR_Byte(F6x8[c][i], OLED_DATA);
x += 6;
j++;
}
}break;
case 2:
{
while(ch[j] != '\0')
{
c = ch[j] - 32;
if(x > 120)
{
x = 0;
y++;
}
oled_setpos(x,y);
for(i=0;i<8;i++)
OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
oled_setpos(x,y+1);
for(i=0;i<8;i++)
OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
x += 8;
j++;
}
}break;
}
}
/**
  * @brief  OLED_ShowCN￡¬ÏÔê¾codetab.hÖDμÄoo×Ö,16*16μãÕó
  * @param  x,y: Æeê¼μã×ø±ê(x:0~127, y:0~7);
* N

o×ÖÔúcodetab.hÖDμÄË÷òy
adderÎaêy×éÏÂ±êN¸öoo×Ö￡¬êy×é′óD¡¾íÎaN*32
* @retval ÎT
*/
void OLED_ShowCN(unsigned char x, unsigned char y, unsigned char N)
{
unsigned char wm=0;
unsigned int adder=32*N;

oled_setpos(x , y);
for(wm = 0;wm < 16;wm++)
{
OLED_WR_Byte(PF16x16[adder],OLED_DATA);
adder += 1;
}
oled_setpos(x,y + 1);
for(wm = 0;wm < 16;wm++)
{
OLED_WR_Byte(PF16x16[adder],OLED_DATA);
adder += 1;
}

}