stm32f103c8 模拟SPI OLED 求助

cc灿 · 发表于 2017-11-2 18:23:44

显示出错，6X8显示没问题  8X16只能显示下面半部分求助，显示程序应该没问题？？

void OLED_SPI_Init(void)
{
GPIO_InitTypeDef  GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA , ENABLE);
GPIO_InitStructure.GPIO_Pin =GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
//---------------
#define OLED_SCL_L    GPIO_ResetBits(GPIOA,GPIO_Pin_7)
#define OLED_SCL_H    GPIO_SetBits(GPIOA,GPIO_Pin_7)

#define OLED_SDA_L    GPIO_ResetBits(GPIOA,GPIO_Pin_6)
#define OLED_SDA_H    GPIO_SetBits(GPIOA,GPIO_Pin_6)

#define OLED_RST_L    GPIO_ResetBits(GPIOA,GPIO_Pin_5)
#define OLED_RST_H    GPIO_SetBits(GPIOA,GPIO_Pin_5)

#define OLED_DC_L    GPIO_ResetBits(GPIOA,GPIO_Pin_4)
#define OLED_DC_H    GPIO_SetBits(GPIOA,GPIO_Pin_4)

#define XLevelL 0x00
#define XLevelH 0x10
#define XLevel ((XLevelH&0x0F)*16+XLevelL)
#define Max_Column 128
#define Max_Row    64
#define Brightness 0xCF

#define X_WIDTH 128
#define Y_WIDTH 64

void OLED_WrDat(uint8_t data)
{
uint8_t i=8;
//LCD_CS=0;;
OLED_DC_H;
  OLED_SCL_L;
  //asm("nop");
  while(i--)
  {
if(data&0x80){OLED_SDA_H;}
else{OLED_SDA_L;}
OLED_SCL_H;
//asm("nop");;
//asm("nop");
OLED_SCL_L;
data<<=1;
  }
//LCD_CS=1;
}

void OLED_WrCmd(uint8_t cmd)
{
uint8_t i=8;

//LCD_CS=0;;
OLED_DC_L;
  OLED_SCL_L;
  //asm("nop");
  while(i--)
  {
if(cmd&0x80){OLED_SDA_H;}
else{OLED_SDA_L;}
OLED_SCL_H;
//asm("nop");
//asm("nop");
OLED_SCL_L;
cmd<<=1;;
  }
}

void OLED_Set_Pos(uint8_t x, uint8_t y)
{
  OLED_WrCmd(0xb0+(y>>3));
  OLED_WrCmd(((x&0xf0)>>4)|0x10);
  OLED_WrCmd((x&0x0f)|0x01);
}

void OLED_Fill(uint8_t bmp_data)
{
uint8_t y,x;
for(y=0;y<8;y++)
{
OLED_WrCmd(0xb0+y);
OLED_WrCmd(0x01);
OLED_WrCmd(0x10);
for(x=0;x<X_WIDTH;x++)
OLED_WrDat(bmp_data);
}
}

void OLED_CLS(void)
{
uint8_t y,x;
for(y=0;y<8;y++)
{
OLED_WrCmd(0xb0+y);
OLED_WrCmd(0x01);
OLED_WrCmd(0x10);
for(x=0;x<X_WIDTH;x++)
OLED_WrDat(0);
}
}
void OLED_DLY_ms(uint16_t ms)
{
  uint16_t a;
  while(ms)
  {
a=1335;  //1335
while(a--);
ms--;
  }
  return;
}

void OLED_Init(void)
{
  OLED_SPI_Init();

  OLED_SCL_H;
  //LCD_CS=1;
  OLED_RST_L;
  OLED_DLY_ms(50);
  OLED_RST_H;

  OLED_WrCmd(0xae);
  OLED_WrCmd(0x00);
  OLED_WrCmd(0x10);
  OLED_WrCmd(0x40);
  OLED_WrCmd(0x81);
  OLED_WrCmd(0xcf);
  OLED_WrCmd(0xa1)；
  OLED_WrCmd(0xc8);
  OLED_WrCmd(0xa6);
  OLED_WrCmd(0xa8);
  OLED_WrCmd(0x3f);
  OLED_WrCmd(0xd3);
  OLED_WrCmd(0x00);//-not offset
  OLED_WrCmd(0xd5);
  OLED_WrCmd(0x80);//--set divide ratio, Set Clock as 100 Frames/Sec
  OLED_WrCmd(0xd9);
  OLED_WrCmd(0xf1);
  OLED_WrCmd(0xda);
  OLED_WrCmd(0x12);
  OLED_WrCmd(0xdb);//--set vcomh
  OLED_WrCmd(0x40);//Set VCOM Deselect Level
  OLED_WrCmd(0x20);
  OLED_WrCmd(0x02);//
  OLED_WrCmd(0x8d);
  OLED_WrCmd(0x14);
  OLED_WrCmd(0xa4);
  OLED_WrCmd(0xa6);
  OLED_WrCmd(0xaf);
  OLED_Fill(0x00);

}
/*==============================================================
void OLED_PutPixel(u8 x,u8 y)
定点
==============================================================*/
void OLED_PutPixel(uint8_t x,uint8_t y)
{
   uint8_t data1;
   // OLED_Set_Pos(x,y);
   data1 = 0x01<<(y%8);
OLED_WrCmd(0xb0+(y>>3));
OLED_WrCmd(((x&0xf0)>>4)|0x10);
OLED_WrCmd((x&0x0f)|0x00);
OLED_WrDat(data1);
}
/*========================================
void OLED_P6x8Char(char x,char y,char ch);

6X8字符
========================================*/
void OLED_P6x8Char(uint8_t x,uint8_t y,char ch)
{
char c=0,i=0;
c =ch-32;
if(x>122)
{
   x=0;
   y++;
}
OLED_Set_Pos(x,y);
for(i=0;i<6;i++)
{
   OLED_WrDat(F6x8[c]);
}
}

//6X8字符串
void OLED_P6x8Str(uint8_t x,uint8_t y,uint8_t ch[])
{
  uint8_t c=0,i=0,j=0;
  while (ch[j]!='\0')
  {
c =ch[j]-32;
if(x>126){x=0;y++;}
OLED_Set_Pos(x,y);
    for(i=0;i<6;i++)
       OLED_WrDat(F6x8[c]);
    x+=6;
    j++;
  }
}
/*===========================================
void OLED_P8x16Char(u8 x,u8 y,char ch);

8X16字符
===============================================*/
void OLED_P8x16Char(uint8_t x,uint8_t y,char ch)
{
char c=0,i=0;
c =ch-32;
if(x>120)
{
   x=0;
   y++;
}
OLED_Set_Pos(x,y);
for(i=0;i<8;i++)
{
   OLED_WrDat(F8X16[(c<<4)+i]);
}
      OLED_Set_Pos(x,y+1);
for(i=0;i<8;i++)
{
   OLED_WrDat(F8X16[(c<<4)+i+8]);
}
}
//8X16字符串
void OLED_P8x16Str(uint8_t x,uint8_t y,uint8_t ch[])
{
  uint8_t c=0,i=0,j=0;

  while (ch[j]!='\0')
  {
c =ch[j]-32;
if(x>120){x=0;y++;}
OLED_Set_Pos(x,y);
    for(i=0;i<8;i++)
       OLED_WrDat(F8X16[c*16+i]);
    OLED_Set_Pos(x,y+1);
    for(i=0;i<8;i++)
       OLED_WrDat(F8X16[c*16+i+8]);
    x+=8;
    j++;
  }
}

大瓶子凌凌漆 · 发表于 2017-11-2 18:23:45

从图片上看，你的扫描方向应该是从下往上的，顶部显示空间是不是不够了；
另外你的显示机制我不是很了解，你的void OLED_P8x16Char(uint8_t x,uint8_t y,char ch)中
OLED_Set_Pos(x,y+1); 另一半显示的起点是不是有问题，为什么y+1呢？而不是y+8