求火哥的IIC 接口的OLED显示屏显示数字的程序

哈哈哈哈 · 发表于 2017-3-31 23:54:48

求火哥的IIC 接口的OLED显示屏显示数字的程序，数字大小是8*16的，求程序

fire · 发表于 2017-4-1 08:51:43

野火【OLED-IIC-黄蓝双色0.96寸】OLED屏幕模块资料

注意，本资料配套的是 IIC 通讯协议的OLED屏

百度网盘下载链接：http://pan.baidu.com/s/1nvO06HN

哈哈哈哈 · 发表于 2017-4-1 13:26:07

fire 发表于 2017-4-1 08:51
野火【OLED-IIC-黄蓝双色0.96寸】OLED屏幕模块资料

注意，本资料配套的是 IIC 通讯协议的OLED屏

火哥，这个只有现实字符串的，没有显示数字的啊，我要的是能显示8*16那么大的数字的程序，谢谢啊

哈哈哈哈 · 发表于 2017-4-1 13:37:26

fire 发表于 2017-4-1 08:51
野火【OLED-IIC-黄蓝双色0.96寸】OLED屏幕模块资料

注意，本资料配套的是 IIC 通讯协议的OLED屏

/**
* @brief 128*64点阵的OLED显示屏驱动文件，仅适用于SD1306驱动IIC通信方式显示屏
* Function List:
* 1. void I2C_Configuration(void) -- 配置CPU的硬件I2C
* 2. void I2C_WriteByte(uint8_t addr,uint8_t data) -- 向寄存器地址写一个byte的数据
* 3. void WriteCmd(unsigned char I2C_Command) -- 写命令
* 4. void WriteDat(unsigned char I2C_Data) -- 写数据
* 5. void OLED_Init(void) -- OLED屏初始化
* 6. void OLED_SetPos(unsigned char x, unsigned char y) -- 设置起始点坐标
* 7. void OLED_Fill(unsigned char fill_Data) -- 全屏填充
* 8. void OLED_CLS(void) -- 清屏
* 9. void OLED_ON(void) -- 唤醒
* 10. void OLED_OFF(void) -- 睡眠
* 11. void OLED_ShowStr(unsigned char x, unsigned char y, unsigned char ch[], unsigned char TextSize) -- 显示字符串(字体大小有6*8和8*16两种)
* 12. void OLED_ShowCN(unsigned char x, unsigned char y, unsigned char N) -- 显示中文(中文需要先取模，然后放到codetab.h中)
* 13. void OLED_DrawBMP(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,unsigned char BMP[]) -- BMP图片
*
*
******************************************************************************
*/
#include "oled.h"
#include "delay.h"
#include "codetab.h"
//I2C_Configuration，初始化硬件IIC1引脚
void I2C_Configuration(void)
{
I2C_InitTypeDef I2C_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
/*STM32F103C8T6芯片的硬件I2C: PB6 -- SCL; PB7 -- SDA */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;//I2C必须开漏输出
GPIO_Init(GPIOB, &GPIO_InitStructure);
I2C_DeInit(I2C1);//使用I2C1
I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
I2C_InitStructure.I2C_OwnAddress1 = 0x30;//主机的I2C地址,随便写的
I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStructure.I2C_ClockSpeed = 400000;//400K
I2C_Cmd(I2C1, ENABLE);
I2C_Init(I2C1, &I2C_InitStructure);
}
/**
* @brief I2C_WriteByte，向OLED寄存器地址写一个byte的数据
* @param addr：寄存器地址
* data：要写入的数据
*/
void I2C_WriteByte(uint8_t addr,uint8_t data)
{
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY));
I2C_GenerateSTART(I2C1, ENABLE);//开启I2C1
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));/*EV5,主模式*/
I2C_Send7bitAddress(I2C1, OLED_ADDRESS, I2C_Direction_Transmitter);//器件地址 -- 默认0x78
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
I2C_SendData(I2C1, addr);//寄存器地址
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
I2C_SendData(I2C1, data);//发送数据
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
I2C_GenerateSTOP(I2C1, ENABLE);//关闭I2C1总线
}
/**
* @brief WriteCmd，向OLED写入命令
* @param I2C_Command：命令代码
* @retval 无
*/
void WriteCmd(unsigned char I2C_Command)//写命令
{
I2C_WriteByte(0x00, I2C_Command);
}
/**
* @brief WriteDat，向OLED写入数据
* @param I2C_Data：数据
* @retval 无
*/
void WriteDat(unsigned char I2C_Data)//写数据
{
I2C_WriteByte(0x40, I2C_Data);
}
/**
* @brief OLED_Init，初始化OLED
* @param 无
* @retval 无
*/
void OLED_Init(void)
{
delay_ms(100); //这里的延时很重要
WriteCmd(0xAE); //display off
WriteCmd(0x20); //Set Memory Addressing Mode
WriteCmd(0x10); //00,Horizontal Addressing Mode;01,Vertical Addressing Mode;10,Page Addressing Mode (RESET);11,Invalid
WriteCmd(0xb0); //Set Page Start Address for Page Addressing Mode,0-7
WriteCmd(0xc8); //Set COM Output Scan Direction
WriteCmd(0x00); //---set low column address
WriteCmd(0x10); //---set high column address
WriteCmd(0x40); //--set start line address
WriteCmd(0x81); //--set contrast control register
WriteCmd(0xff); //亮度调节 0x00~0xff
WriteCmd(0xa1); //--set segment re-map 0 to 127
WriteCmd(0xa6); //--set normal display
WriteCmd(0xa8); //--set multiplex ratio(1 to 64)
WriteCmd(0x3F); //
WriteCmd(0xa4); //0xa4,Output follows RAM content;0xa5,Output ignores RAM content
WriteCmd(0xd3); //-set display offset
WriteCmd(0x00); //-not offset
WriteCmd(0xd5); //--set display clock divide ratio/oscillator frequency
WriteCmd(0xf0); //--set divide ratio
WriteCmd(0xd9); //--set pre-charge period
WriteCmd(0x22); //
WriteCmd(0xda); //--set com pins hardware configuration
WriteCmd(0x12);
WriteCmd(0xdb); //--set vcomh
WriteCmd(0x20); //0x20,0.77xVcc
WriteCmd(0x8d); //--set DC-DC enable
WriteCmd(0x14); //
WriteCmd(0xaf); //--turn on oled panel
}
/**
* @brief OLED_SetPos，设置光标
* @param x,光标x位置
* y，光标y位置
* @retval 无
*/
void OLED_SetPos(unsigned char x, unsigned char y) //设置起始点坐标
{
WriteCmd(0xb0+y);
WriteCmd(((x&0xf0)>>4)|0x10);
WriteCmd((x&0x0f)|0x01);
}
/**
* @brief OLED_Fill，填充整个屏幕
* @param fill_Data:要填充的数据
* @retval 无
*/
void OLED_Fill(unsigned char fill_Data)//全屏填充
{
unsigned char m,n;
for(m=0;m<8;m++)
{
WriteCmd(0xb0+m); //page0-page1
WriteCmd(0x00); //low column start address
WriteCmd(0x10); //high column start address
for(n=0;n<128;n++)
{
WriteDat(fill_Data);
}
}
}
/**
* @brief OLED_CLS，清屏
* @param 无
* @retval 无
*/
void OLED_CLS(void)//清屏
{
OLED_Fill(0x00);
}
/**
* @brief OLED_ON，将OLED从休眠中唤醒
* @param 无
* @retval 无
*/
void OLED_ON(void)
{
WriteCmd(0X8D); //设置电荷泵
WriteCmd(0X14); //开启电荷泵
WriteCmd(0XAF); //OLED唤醒
}
/**
* @brief OLED_OFF，让OLED休眠 -- 休眠模式下,OLED功耗不到10uA
* @param 无
* @retval 无
*/
void OLED_OFF(void)
{
WriteCmd(0X8D); //设置电荷泵
WriteCmd(0X10); //关闭电荷泵
WriteCmd(0XAE); //OLED休眠
}
/**
* @brief OLED_ShowStr，显示codetab.h中的ASCII字符,有6*8和8*16可选择
* @param x,y : 起始点坐标(x:0~127, y:0~7);
* ch[] :- 要显示的字符串;
* TextSize : 字符大小(1:6*8 ; 2:8*16)
* @retval 无
*/
void OLED_ShowStr(unsigned char x, unsigned char y, unsigned char ch[], unsigned char TextSize)
{
unsigned char c = 0,i = 0,j = 0;
switch(TextSize)
{
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++)
WriteDat(F6x8[c][i]);
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++)
WriteDat(F8X16[c*16+i]);
OLED_SetPos(x,y+1);
for(i=0;i<8;i++)
WriteDat(F8X16[c*16+i+8]);
x += 8;
j++;
}
}break;
}
}
/**
* @brief OLED_ShowCN，显示codetab.h中的汉字,16*16点阵
* @param x,y: 起始点坐标(x:0~127, y:0~7);
* N:汉字在codetab.h中的索引
* @retval 无
*/
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++)
{
WriteDat(F16x16[adder]);
adder += 1;
}
OLED_SetPos(x,y + 1);
for(wm = 0;wm < 16;wm++)
{
WriteDat(F16x16[adder]);
adder += 1;
}
}
/**
* @brief OLED_DrawBMP，显示BMP位图
* @param x0,y0 :起始点坐标(x0:0~127, y0:0~7);
* x1,y1 : 起点对角线(结束点)的坐标(x1:1~128,y1:1~8)
* @retval 无
*/
void OLED_DrawBMP(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,unsigned char BMP[])
{
unsigned int j=0;
unsigned char x,y;
if(y1%8==0)
y = y1/8;
else
y = y1/8 + 1;
for(y=y0;y<y1;y++)
{
OLED_SetPos(x0,y);
for(x=x0;x<x1;x++)
{
WriteDat(BMP[j++]);
}
}
}
//显示数字
/**
* @brief OLED_ShowNum，显示codetab.h中的ASCII数字,有6*8和8*16可选择
* @param x,y : 起始点坐标(x:0~127, y:0~7);
* num : 要显示的整形数字;
* TextSize : 字符大小(1:6*8 ; 2:8*16)
* @retval 无
*/
void OLED_ShowintNum(u8 x,u8 y,int32_t num,int32_t TextSize)
{
unsigned char number[10];
unsigned char i,j,k,l;
unsigned char a,c;
int32_t b;
if(num<0)
{
a=0;
b=-num;
}
else
{
a=1;
b=num;
}
for(i=0;i<10;i++)
{
number[i]=b%10;
b=b/10;
}
for(j=1,i=10;i>0&&j<2;i--)
{
j+=number[i-1];
}
k=i+1;
switch(TextSize)
{
case 1:
{
if(a==0)//写符号
{
OLED_SetPos(x,y);
for(l=0;l<6;l++)
{
WriteDat(F6x8[13][l]);
}
x+=6;
}
for(i=k;i>0;i--)
{
c = number[i-1]+16;
if(x > 126)
{
x = 0;
y++;
}
OLED_SetPos(x,y);
for(l=0;l<6;l++)
{
WriteDat(F6x8[c][l]);
}
x += 6;
}
for(i=0;i<11-k;i++)
{
if(x > 126)
{
x = 0;
y++;
}
OLED_SetPos(x,y);
for(l=0;l<6;l++)
{
WriteDat(F6x8[0][l]);
}
x += 6;
}
}break;
case 2:
{
if(x > 120)
{
x = 0;
y++;
}
if(a==0)//写符号
{
OLED_SetPos(x,y);
for(l=0;l<8;l++)
WriteDat(F8X16[13*16+l]);
OLED_SetPos(x,y+1);
for(l=0;l<8;l++)
WriteDat(F8X16[13*16+l+8]);
x+=8;
}
for(i=k;i>0;i--)
{
c = number[i-1]+16;
if(x > 120)
{
x = 0;
y++;
}
OLED_SetPos(x,y);
for(i=0;i<8;i++)
WriteDat(F8X16[c*16+i]);
OLED_SetPos(x,y+1);
for(i=0;i<8;i++)
WriteDat(F8X16[c*16+i+8]);
}
for(i=0;i<11-k;i++)
{
c = number[i-1]+16;
if(x > 120)
{
x = 0;
y++;
}
OLED_SetPos(x,y);
for(i=0;i<8;i++)
WriteDat(F8X16[i]);
OLED_SetPos(x,y+1);
for(i=0;i<8;i++)
WriteDat(F8X16[i+8]);
}
}break;
}
}

复制代码

这是我的显示数字的代码，显示6*8的可以，但是显示8*16就不能显示了，火哥，给看看

随风 · 发表于 2017-4-1 15:42:35

哈哈哈哈发表于 2017-4-1 13:37
这是我的显示数字的代码，显示6*8的可以，但是显示8*16就不能显示了，火哥，给看看

可以使用这种方法，把数字格式化成字符串再显示

如何使用液晶显示整型、浮点型变量
http://www.firebbs.cn/forum.php? ... 2851&fromuid=64
(出处: 野火论坛)

哈哈哈哈 · 发表于 2017-4-2 21:45:53

随风发表于 2017-4-1 15:42
可以使用这种方法，把数字格式化成字符串再显示

如何使用液晶显示整型、浮点型变量

你给链接有问题，你试试？打开有问题

wsxrfv · 发表于 2017-11-25 21:15:07

HAL 库版本，根据火哥给的例程改编的

//File oled.h
#include "i2c.h"
#include "stm32f407xx.h"
/* defines */
#define OLED_ADDR 0x78
/* functions */
void IIC_WriteByte(uint8_t addr, uint8_t data);
void WriteCmd(uint8_t cmd);
void WriteData(uint8_t data);
void oledInit(void);
void oledSetPos(uint8_t x, uint8_t y); // set cursor
void oledFill(uint8_t fillData);
void oledClearScreen(void); // clear screen
void oledON(void);
void oledOFF(void);
void oledShowStr(uint8_t x, uint8_t y, uint8_t ch[], uint8_t size);
void oledShowCN(uint8_t x, uint8_t y, uint8_t N);
void oledDrawBMP(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t BMP[]);
// File oled.c
#include "oled.h"
#include "codetab.h"
/*
* brief : IIC_WriteByte. write a byte data to oled register
* param : addr address of register
* data the data will be write in
* retval: none
*/
void IIC_WriteByte(uint8_t addr, uint8_t Data)
{
uint8_t data[2];
data[0] = addr;
data[1] = Data;
HAL_I2C_Master_Transmit(&hi2c1, OLED_ADDR, data, 2, 0xFFFF);
}
/*
* brief : WriteCmd. write cmd to oled
* param : cmd
* retval: none
*/
void WriteCmd(uint8_t cmd)
{
IIC_WriteByte(0x00, cmd);
}
/*
* brief : WriteData. write data to oled
* param : data the data will write to OLED
* retval: none
*/
void WriteData(uint8_t data)
{
IIC_WriteByte(0x40, data);
}
/*
* brief : oledInit. initialize OLED
* param : none
* retval: none
*/
void oledInit(void)
{
HAL_Delay(1000);
WriteCmd(0xAE); //display off
WriteCmd(0x20); //Set Memory Addressing Mode
WriteCmd(0x10); //00,Horizontal Addressing Mode;01,Vertical Addressing Mode;10,Page Addressing Mode (RESET);11,Invalid
WriteCmd(0xb0); //Set Page Start Address for Page Addressing Mode,0-7
WriteCmd(0xc8); //Set COM Output Scan Direction
WriteCmd(0x00); //---set low column address
WriteCmd(0x10); //---set high column address
WriteCmd(0x40); //--set start line address
WriteCmd(0x81); //--set contrast control register
WriteCmd(0xff); //亮度调节 0x00~0xff
WriteCmd(0xa1); //--set segment re-map 0 to 127
WriteCmd(0xa6); //--set normal display
WriteCmd(0xa8); //--set multiplex ratio(1 to 64)
WriteCmd(0x3F); //
WriteCmd(0xa4); //0xa4,Output follows RAM content;0xa5,Output ignores RAM content
WriteCmd(0xd3); //-set display offset
WriteCmd(0x00); //-not offset
WriteCmd(0xd5); //--set display clock divide ratio/oscillator frequency
WriteCmd(0xf0); //--set divide ratio
WriteCmd(0xd9); //--set pre-charge period
WriteCmd(0x22); //
WriteCmd(0xda); //--set com pins hardware configuration
WriteCmd(0x12);
WriteCmd(0xdb); //--set vcomh
WriteCmd(0x20); //0x20,0.77xVcc
WriteCmd(0x8d); //--set DC-DC enable
WriteCmd(0x14); //
WriteCmd(0xaf); //--turn on oled panel
}
/*
* brief : oledSetpos. set cursor
* param : x cursor place of x
* y cursor place of y
* retval; none
*/
void oledSetPos(uint8_t x, uint8_t y)
{
WriteCmd(0xb0+y);
WriteCmd(((x&0xf0)>>4)|0x10);
WriteCmd((x&0x0f)|0x01);
}
/*
* brief : oledFill. fill the all screen
* param : fillData the data will fill in screen
* retval: none
*/
void oledFill(uint8_t fillData)
{
uint8_t m,n;
for(m = 0; m < 8; m++)
{
WriteCmd(0xB0 + m); // page0-page1
WriteCmd(0x00); // low column start address
WriteCmd(0x10); // high column start address
for(n = 0; n < 128; n++)
{
WriteData(fillData);
}
}
}
/*
* brief : void oledClearScreen. clear screen
* param : none
* retval: none
*/
void oledClearScreen(void)
{
oledFill(0x00);
}
/*
* brief : oledON Open OLED screen
* param : none
* retval: none
*/
void oledON(void)
{
WriteCmd(0x8D); // 设置电荷泵
WriteCmd(0x14); // 开启电荷泵
WriteCmd(0xAF); // OLED wake up
}
/*
* brief : oledOFF let oled sleep -- under the sleep mode, the power of oled is only 10uA
* param : none
* retval: none
*/
void oledOFF(void)
{
WriteCmd(0x8D); // 设置电荷泵
WriteCmd(0x10); // 关闭电荷泵
WriteCmd(0xAE); // let OLED sleep
}
/**
* @brief OLED_ShowStr，显示codetab.h中的ASCII字符,有6*8和8*16可选择
* @param x,y : 起始点坐标(x:0~127, y:0~7);
* ch[] :- 要显示的字符串;
* TextSize : 字符大小(1:6*8 ; 2:8*16)
* @retval 无
*/
void oledShowStr(uint8_t x, uint8_t y, uint8_t ch[], uint8_t size)
{
uint8_t c = 0, i = 0, j = 0;
switch(size)
{
case 1:
{
while(ch[j] != '\0')
{
c = ch[j] - 32;
if(x > 126)
{
x = 0;
y++;
}
oledSetPos(x, y);
for(i = 0; i < 6; i++)
{
WriteData(F6x8[c][i]);
}
x += 6;
j++;
}
}break;
case 2:
{
while(ch[j] != '\0')
{
c = ch[j] -32;
if(x > 120)
{
x = 0;
y++;
}
oledSetPos(x,y);
for(i = 0; i < 8; i++)
{
WriteData(F8X16[c*16+i]);
}
oledSetPos(x, y+1);
for(i = 0; i < 8; i++)
{
WriteData(F8X16[c*16+i+8]);
}
x += 8;
j++;
}
}break;
}
}
/**
* @brief OLED_ShowCN，显示codetab.h中的汉字,16*16点阵
* @param x,y: 起始点坐标(x:0~127, y:0~7);
* N:汉字在codetab.h中的索引
* @retval 无
*/
void oledShowCN(uint8_t x, uint8_t y, uint8_t N)
{
uint8_t wm = 0;
uint16_t adder = 32*N;
oledSetPos(x,y);
for(wm = 0; wm < 16; wm++)
{
WriteData(F16x16[adder]);
adder += 1;
}
oledSetPos(x, y+1);
for(wm = 0; wm < 16; wm++)
{
WriteData(F16x16[adder]);
adder += 1;
}
}
/**
* @brief OLED_DrawBMP，显示BMP位图
* @param x0,y0 : 起始点坐标(x0:0~127, y0:0~7);
* x1,y1 : 起点对角线(结束点)的坐标(x1:1~128,y1:1~8)
* @retval 无
*/
void oledDrawBMP(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t BMP[])
{
uint16_t j = 0;
uint8_t x,y;
if(y1 % 8 == 0)
{
y = y1 / 8;
}
else
{
y = y1 / 8 + 1;
}
for(y = y0; y < y1; y++)
{
oledSetPos(x0, y);
for(x = x0; x < x1; x++)
{
WriteData(BMP[j++]);
}
}
}

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求火哥的IIC 接口的OLED显示屏显示数字的程序

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