MSPM0G3507使用硬件I2C移植0.96寸OLED显示屏
本文介绍了如何将基于STM32 HAL库的硬件I2C OLED驱动移植到MSPM0系列MCU上的过程。主要内容包括：1. 环境配置：使用CCS开发环境，基于TI官方示例进行移植。2. 关键修改：将HAL库的I2C通信函数替换为DL库函数，特别注意地址转换（0x78→0x3C）和数据包格式调整。3. 移植步骤：创建工程、配置I2C参数、修改OLED驱动核心函数（OLED_WR_CMD和OLED_WR
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目录
引言
在CSDN上找了一圈,发现MSPm0系列使用硬件I2C驱动OLED的文章好像并不多,所以我就自己移植了一份,其中的OLED.c和OLED.h及字库文件都使用了论坛内大佬移植好的文件,在此,我先感谢一下他们
一.移植准备
我使用的IDE是从德州仪器官网下载的最新版CCS,CCS的配置可以参考立创开发板里的CCS配置,我在这里就不再赘述了
以下是移植所用的文件(基于STM32HAL库硬件I2C)
OLED.c
#include "OLED.h"
/**********************************************************
根据数据手册可以查到，此数组为命令数据：
0xAE：关闭显示器。
0xD5 0x80：设置显示时钟分频因子/振荡器频率。
0xA8 0x3F：设置多路复用率（1/64）。
0xD3 0x00：设置显示偏移（无偏移）。
0x40：设置起始行为0。
0xA1：设置段重定向（列地址0映射到SEG0）。
0xC8：设置COM扫描方向（上至下）。
0xDA 0x12：设置COM硬件引脚配置。
0x81 0xCF：设置对比度控制。
0xD9 0xF1：设置预充电周期。
0xDB 0x40：设置VCOMH电压倍率。
0xA4：设置显示全部点亮。
0xA6：设置显示正常（非反相）模式。
0x8D 0x14：设置DC-DC电荷泵开启和电荷泵倍率。
0xAF：打开显示器，开始显示。
***********************************************************/
uint8_t CMD_Data[]={
0xAE, 0xD5, 0x80, 0xA8, 0x3F, 0xD3, 0x00, 0x40,0xA1, 0xC8, 0xDA,
0x12, 0x81, 0xCF, 0xD9, 0xF1, 0xDB, 0x40, 0xA4, 0xA6,0x8D, 0x14,
0xAF};
/**
* @function: void OLED_Init(void)
* @description: OLED初始化
* @return {*}
*/
void OLED_Init(void)
{
HAL_Delay(200);
uint8_t i = 0;
for(i=0; i<23; i++)
{
OLED_WR_CMD(CMD_Data[i]);
}
}
/**
* @function: void OLED_WR_CMD(uint8_t cmd)
* @description: 向设备写控制命令
* 第一个参数是指向I2C_HandleTypeDef结构的指针，该结构包含I2C总线的配置和状态信息。
* 第二个参数是I2C设备的地址（在这里是0x78）
* 第三个参数是要写入的内存地址（在这里是0x00）
* 第四个参数是内存地址大小（在这里是8位）
* 第五个参数是指向要写入数据的缓冲区的指针
* 第六个参数是要写入的字节数（在这里是1）
* 最后一个参数是超时时间（在这里是0x100，即256）。
* 这个函数的作用是通过I2C总线向OLED屏幕发送命令，控制其显示属性和行为。
* @param {uint8_t} cmd 芯片手册规定的命令
* @return {*}
*/
void OLED_WR_CMD(uint8_t cmd)
{
HAL_I2C_Mem_Write(&hi2c1 ,0x78,0x00,I2C_MEMADD_SIZE_8BIT,&cmd,1,0x100);
}
/**
* @function: void OLED_WR_DATA(uint8_t data)
* @description: 向设备写控制数据
* @param {uint8_t} data 数据
* @return {*}
*/
void OLED_WR_DATA(uint8_t data)
{
HAL_I2C_Mem_Write(&hi2c1 ,0x78,0x40,I2C_MEMADD_SIZE_8BIT,&data,1,0x100);
}
/**
* @function: void OLED_On(void)
* @description: 更新显示
* @return {*}
*/
void OLED_On(void)
{
uint8_t i,n;
for(i=0;i<8;i++)
{
OLED_WR_CMD(0xb0+i); //设置页地址（0~7）
OLED_WR_CMD(0x00); //设置显示位置—列低地址
OLED_WR_CMD(0x10); //设置显示位置—列高地址
for(n=0;n<128;n++)
OLED_WR_DATA(1);
}
}
/**
* @function: OLED_Clear(void)
* @description: 清屏,整个屏幕是黑色的!和没点亮一样!!!
* @return {*}
*/
void OLED_Clear(void)
{
uint8_t i,n;
for(i=0;i<8;i++)
{
OLED_WR_CMD(0xb0+i); //设置页地址（0~7）
OLED_WR_CMD(0x00); //设置显示位置—列低地址
OLED_WR_CMD(0x10); //设置显示位置—列高地址
for(n=0;n<128;n++)
OLED_WR_DATA(0);
}
}
/**
* @function: void OLED_Display_On(void)
* @description: 开启OLED显示
* @return {*}
*/
void OLED_Display_On(void)
{
OLED_WR_CMD(0X8D); //SET DCDC命令
OLED_WR_CMD(0X14); //DCDC ON
OLED_WR_CMD(0XAF); //DISPLAY ON,打开显示
}
/**
* @function: void OLED_Display_Off(void)
* @description: 关闭OLED显示
* @return {*}
*/
void OLED_Display_Off(void)
{
OLED_WR_CMD(0X8D); //SET DCDC命令
OLED_WR_CMD(0X10); //DCDC OFF
OLED_WR_CMD(0XAE); //DISPLAY OFF，关闭显示
}
/**
* @function: void OLED_Set_Pos(uint8_t x, uint8_t y)
* @description: 坐标设置
* @param {uint8_t} x,y
* @return {*}
*/
void OLED_Set_Pos(uint8_t x, uint8_t y)
{
OLED_WR_CMD(0xb0+y); //设置页地址（0~7）
OLED_WR_CMD(((x&0xf0)>>4)|0x10); //设置显示位置—列高地址
OLED_WR_CMD(x&0x0f); //设置显示位置—列低地址
}
/**
* @function: unsigned int oled_pow(uint8_t m,uint8_t n)
* @description: m^n函数
* @param {uint8_t} m,n
* @return {unsigned int} result
*/
unsigned int oled_pow(uint8_t m,uint8_t n)
{
unsigned int result=1;
while(n--)result*=m;
return result;
}
/**
* @function: void OLED_ShowChar(uint8_t x, uint8_t y, uint8_t chr, uint8_t Char_Size,uint8_t Color_Turn)
* @description: 在OLED12864特定位置开始显示一个字符
* @param {uint8_t} x字符开始显示的横坐标
* @param {uint8_t} y字符开始显示的纵坐标
* @param {uint8_t} chr待显示的字符
* @param {uint8_t} Char_Size待显示字符的字体大小,选择字体 16/12
* @param {uint8_t} Color_Turn是否反相显示(1反相、0不反相)
* @return {*}
*/
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t Char_Size,uint8_t Color_Turn)
{
unsigned char c=0,i=0;
c=chr-' ';//得到偏移后的值
if(x>128-1){x=0;y=y+2;}
if(Char_Size ==16)
{
OLED_Set_Pos(x,y);
for(i=0;i<8;i++)
{
if(Color_Turn)
OLED_WR_DATA(~F8X16[c*16+i]);
else
OLED_WR_DATA(F8X16[c*16+i]);
}
OLED_Set_Pos(x,y+1);
for(i=0;i<8;i++)
{
if(Color_Turn)
OLED_WR_DATA(~F8X16[c*16+i+8]);
else
OLED_WR_DATA(F8X16[c*16+i+8]);
}
}
else
{
OLED_Set_Pos(x,y);
for(i=0;i<6;i++)
{
if(Color_Turn)
OLED_WR_DATA(~F6x8[c][i]);
else
OLED_WR_DATA(F6x8[c][i]);
}
}
}
/**
* @function: void OLED_ShowString(uint8_t x, uint8_t y, uint8_t *chr, uint8_tChar_Size, uint8_t Color_Turn)
* @description: 在OLED12864特定位置开始显示字符串
* @param {uint8_t} x待显示字符串的开始横坐标x:0~127
* @param {uint8_t} y待显示字符串的开始纵坐标 y:0~7，若选择字体大小为16，则两行数字之间需要间隔2，若选择字体大小为12，间隔1
* @param {uint8_t} *chr待显示的字符串
* @param {uint8_t} Char_Size待显示字符串的字体大小,选择字体 16/12，16为8X16，12为6x8
* @param {uint8_t} Color_Turn是否反相显示(1反相、0不反相)
* @return {*}
*/
void OLED_ShowString(uint8_t x,uint8_t y,char*chr,uint8_t Char_Size, uint8_t Color_Turn)
{
uint8_t j=0;
while (chr[j]!='\0')
{ OLED_ShowChar(x,y,chr[j],Char_Size, Color_Turn);
if (Char_Size == 12) //6X8的字体列加6，显示下一个字符
x += 6;
else //8X16的字体列加8，显示下一个字符
x += 8;
if (x > 122 && Char_Size==12) //TextSize6x8如果一行不够显示了，从下一行继续显示
{
x = 0;
y++;
}
if (x > 120 && Char_Size== 16) //TextSize8x16如果一行不够显示了，从下一行继续显示
{
x = 0;
y++;
}
j++;
}
}
/**
* @function: void OLED_ShowNum(uint8_t x,uint8_t y,unsigned int num,uint8_t len,uint8_t size2, Color_Turn)
* @description: 显示数字
* @param {uint8_t} x待显示的数字起始横坐标,x:0~126
* @param {uint8_t} y待显示的数字起始纵坐标, y:0~7，若选择字体大小为16，则两行数字之间需要间隔2，若选择字体大小为12，间隔1
* @param {unsigned int} num:输入的数据
* @param {uint8_t } len:输入的数据位数
* @param {uint8_t} size2:输入的数据大小，选择 16/12，16为8X16，12为6x8
* @param {uint8_t} Color_Turn是否反相显示(1反相、0不反相)
* @return {*}
*/
void OLED_ShowNum(uint8_t x,uint8_t y,unsigned int num,uint8_t len,uint8_t size2, uint8_t Color_Turn)
{
uint8_t t,temp;
uint8_t enshow=0;
for(t=0;t<len;t++)
{
temp=(num/oled_pow(10,len-t-1))%10;
if(enshow==0&&t<(len-1))
{
if(temp==0)
{
OLED_ShowChar(x+(size2/2)*t,y,' ',size2, Color_Turn);
continue;
}else enshow=1;
}
OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2, Color_Turn);
}
}
/**
* @function: void OLED_Showdecimal(uint8_t x,uint8_t y,float num,uint8_t z_len,uint8_t f_len,uint8_t size2, uint8_t Color_Turn)
* @description: 显示正负浮点数
* @param {uint8_t} x待显示的数字起始横坐标,x:0~126
* @param {uint8_t} y待显示的数字起始纵坐标, y:0~7，若选择字体大小为16，则两行数字之间需要间隔2，若选择字体大小为12，间隔1
* @param {float} num:输入的浮点型数据
* @param {uint8_t } z_ len:整数部分的位数
* @param {uint8_t } f_len: 小数部分的位数
* @param {uint8_t} size2:输入的数据大小，选择 16/12，16为8X16，12为6x8
* @param {uint8_t} Color_Turn是否反相显示(1反相、0不反相)
* @return {*}
*/
void OLED_Showdecimal(uint8_t x,uint8_t y,float num,uint8_t z_len,uint8_t f_len,uint8_t size2, uint8_t Color_Turn)
{
uint8_t t,temp,i=0;//i为负数标志位
uint8_t enshow;
int z_temp,f_temp;
if(num<0)
{
z_len+=1;
i=1;
num=-num;
}
z_temp=(int)num;
//整数部分
for(t=0;t<z_len;t++)
{
temp=(z_temp/oled_pow(10,z_len-t-1))%10;
if(enshow==0 && t<(z_len-1))
{
if(temp==0)
{
OLED_ShowChar(x+(size2/2)*t,y,' ',size2, Color_Turn);
continue;
}
else
enshow=1;
}
OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2, Color_Turn);
}
//小数点
OLED_ShowChar(x+(size2/2)*(z_len),y,'.',size2, Color_Turn);
f_temp=(int)((num-z_temp)*(oled_pow(10,f_len)));
//小数部分
for(t=0;t<f_len;t++)
{
temp=(f_temp/oled_pow(10,f_len-t-1))%10;
OLED_ShowChar(x+(size2/2)*(t+z_len)+5,y,temp+'0',size2, Color_Turn);
}
if(i==1)//如果为负，就将最前的一位赋值‘-’
{
OLED_ShowChar(x,y,'-',size2, Color_Turn);
i=0;
}
}
/**
* @function: void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no, uint8_t Color_Turn)
* @description: 在OLED特定位置开始显示16X16汉字
* @param {uint8_t} x待显示的汉字起始横坐标x: 0~112，两列汉字之间需要间隔16
* @param {uint8_t} y待显示的汉字起始纵坐标 y: 0~6 , 两行汉字之间需要间隔2
* @param {uint8_t} no待显示的汉字编号
* @param {uint8_t} Color_Turn是否反相显示(1反相、0不反相)
* @return {*}
*/
void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no, uint8_t Color_Turn)
{
uint8_t t=0;
OLED_Set_Pos(x,y);
for(t=0;t<16;t++)
{
if (Color_Turn)
OLED_WR_DATA(~Hzk[2*no][t]); //显示汉字的上半部分
else
OLED_WR_DATA(Hzk[2*no][t]); //显示汉字的上半部分
}
OLED_Set_Pos(x,y+1);
for(t=0;t<16;t++)
{
if (Color_Turn)
OLED_WR_DATA(~Hzk[2*no+1][t]); //显示汉字的上半部分
else
OLED_WR_DATA(Hzk[2*no+1][t]);//显示汉字的上半部分
}
}
/**
* @function: void OLED_DrawBMP(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t * BMP,uint8_t Color_Turn)
* @description: 在OLED特定区域显示BMP图片
* @param {uint8_t} x0图像开始显示横坐标 x0:0~127
* @param {uint8_t} y0图像开始显示纵坐标 y0:0~7
* @param {uint8_t} x1图像结束显示横坐标 x1:1~128
* @param {uint8_t} y1图像结束显示纵坐标 y1:1~8
* @param {uint8_t} *BMP待显示的图像数据
* @param {uint8_t} Color_Turn是否反相显示(1反相、0不反相)
* @return {*}
*/
void OLED_DrawBMP(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t * BMP,uint8_t Color_Turn)
{
uint32_t j = 0;
uint8_t x = 0, y = 0;
if(y1%8==0)
y = y1/8;
else
y = y1/8 + 1;
for(y=y0;y<y1;y++)
{
OLED_Set_Pos(x0,y);
for(x=x0;x<x1;x++)
{
if (Color_Turn)
OLED_WR_DATA(~BMP[j++]);//显示反相图片
else
OLED_WR_DATA(BMP[j++]);//显示图片
}
}
}
/**
* @function: void OLED_HorizontalShift(uint8_t direction)
* @description: 屏幕内容水平全屏滚动播放
* @param {uint8_t} direction LEFT 0x27 RIGHT 0x26
* @return {*}
*/
void OLED_HorizontalShift(uint8_t direction)
{
OLED_WR_CMD(0x2e);//停止滚动
OLED_WR_CMD(direction);//设置滚动方向
OLED_WR_CMD(0x00);//虚拟字节设置，默认为0x00
OLED_WR_CMD(0x00);//设置开始页地址
OLED_WR_CMD(0x07);//设置每个滚动步骤之间的时间间隔的帧频
// 0x00-5帧， 0x01-64帧， 0x02-128帧， 0x03-256帧， 0x04-3帧， 0x05-4帧， 0x06-25帧， 0x07-2帧，
OLED_WR_CMD(0x07);//设置结束页地址
OLED_WR_CMD(0x00);//虚拟字节设置，默认为0x00
OLED_WR_CMD(0xff);//虚拟字节设置，默认为0xff
OLED_WR_CMD(0x2f);//开启滚动-0x2f，禁用滚动-0x2e，禁用需要重写数据
}
/**
* @function: void OLED_Some_HorizontalShift(uint8_t direction,uint8_t start,uint8_t end)
* @description: 屏幕部分内容水平滚动播放
* @param {uint8_t} direction LEFT 0x27 RIGHT 0x26
* @param {uint8_t} start 开始页地址 0x00~0x07
* @param {uint8_t} end 结束页地址 0x01~0x07
* @return {*}
*/
void OLED_Some_HorizontalShift(uint8_t direction,uint8_t start,uint8_t end)
{
OLED_WR_CMD(0x2e);//停止滚动
OLED_WR_CMD(direction);//设置滚动方向
OLED_WR_CMD(0x00);//虚拟字节设置，默认为0x00
OLED_WR_CMD(start);//设置开始页地址
OLED_WR_CMD(0x07);//设置每个滚动步骤之间的时间间隔的帧频,0x07即滚动速度2帧
OLED_WR_CMD(end);//设置结束页地址
OLED_WR_CMD(0x00);//虚拟字节设置，默认为0x00
OLED_WR_CMD(0xff);//虚拟字节设置，默认为0xff
OLED_WR_CMD(0x2f);//开启滚动-0x2f，禁用滚动-0x2e，禁用需要重写数据
}
/**
* @function: void OLED_VerticalAndHorizontalShift(uint8_t direction)
* @description: 屏幕内容垂直水平全屏滚动播放
* @param {uint8_t} direction 右上滚动 0x29
* 左上滚动 0x2A
* @return {*}
*/
void OLED_VerticalAndHorizontalShift(uint8_t direction)
{
OLED_WR_CMD(0x2e);//停止滚动
OLED_WR_CMD(direction);//设置滚动方向
OLED_WR_CMD(0x01);//虚拟字节设置
OLED_WR_CMD(0x00);//设置开始页地址
OLED_WR_CMD(0x07);//设置每个滚动步骤之间的时间间隔的帧频，即滚动速度
OLED_WR_CMD(0x07);//设置结束页地址
OLED_WR_CMD(0x01);//垂直滚动偏移量
OLED_WR_CMD(0x00);//虚拟字节设置，默认为0x00
OLED_WR_CMD(0xff);//虚拟字节设置，默认为0xff
OLED_WR_CMD(0x2f);//开启滚动-0x2f，禁用滚动-0x2e，禁用需要重写数据
}
/**
* @function: void OLED_DisplayMode(uint8_t mode)
* @description: 屏幕内容取反显示
* @param {uint8_t} direction ON 0xA7 ，
* OFF 0xA6 默认此模式，设置像素点亮
* @return {*}
*/
void OLED_DisplayMode(uint8_t mode)
{
OLED_WR_CMD(mode);
}
/**
* @function: void OLED_IntensityControl(uint8_t intensity)
* @description: 屏幕亮度调节
* @param {uint8_t} intensity 0x00~0xFF,RESET=0x7F
* @return {*}
*/
void OLED_IntensityControl(uint8_t intensity)
{
OLED_WR_CMD(0x81);
OLED_WR_CMD(intensity);
}OLED.h
#ifndef OLED_OLED_H_
#define OLED_OLED_H_
#include "stm32f4xx_hal.h"
#include "oledfont.h"
extern I2C_HandleTypeDef hi2c1;
void OLED_WR_CMD(uint8_t cmd);
void OLED_WR_DATA(uint8_t data);
void OLED_Init(void);
void OLED_Clear(void);
void OLED_Display_On(void);
void OLED_Display_Off(void);
void OLED_Set_Pos(uint8_t x, uint8_t y);
void OLED_On(void);
void OLED_ShowNum(uint8_t x,uint8_t y,unsigned int num,uint8_t len,uint8_t size2,uint8_t Color_Turn);
void OLED_Showdecimal(uint8_t x,uint8_t y,float num,uint8_t z_len,uint8_t f_len,uint8_t size2, uint8_t Color_Turn);
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t Char_Size,uint8_t Color_Turn);
void OLED_ShowString(uint8_t x,uint8_t y,char*chr,uint8_t Char_Size,uint8_t Color_Turn);
void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no,uint8_t Color_Turn);
void OLED_DrawBMP(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t * BMP,uint8_t Color_Turn);
void OLED_HorizontalShift(uint8_t direction);
void OLED_Some_HorizontalShift(uint8_t direction,uint8_t start,uint8_t end);
void OLED_VerticalAndHorizontalShift(uint8_t direction);
void OLED_DisplayMode(uint8_t mode);
void OLED_IntensityControl(uint8_t intensity);
#endif /* OLED_OLED_H_ */oledfont.c
#include "oledfont.h"
//8*6 ASCII字符集点阵
const unsigned char F6x8[][6] =
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,// sp
0x00, 0x00, 0x00, 0x2f, 0x00, 0x00,// !
0x00, 0x00, 0x07, 0x00, 0x07, 0x00,// "
0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14,// #
0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12,// $
0x00, 0x62, 0x64, 0x08, 0x13, 0x23,// %
0x00, 0x36, 0x49, 0x55, 0x22, 0x50,// &
0x00, 0x00, 0x05, 0x03, 0x00, 0x00,// '
0x00, 0x00, 0x1c, 0x22, 0x41, 0x00,// (
0x00, 0x00, 0x41, 0x22, 0x1c, 0x00,// )
0x00, 0x14, 0x08, 0x3E, 0x08, 0x14,// *
0x00, 0x08, 0x08, 0x3E, 0x08, 0x08,// +
0x00, 0x00, 0x00, 0xA0, 0x60, 0x00,// ,
0x00, 0x08, 0x08, 0x08, 0x08, 0x08,// -
0x00, 0x00, 0x60, 0x60, 0x00, 0x00,// .
0x00, 0x20, 0x10, 0x08, 0x04, 0x02,// /
0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0
0x00, 0x00, 0x42, 0x7F, 0x40, 0x00,// 1
0x00, 0x42, 0x61, 0x51, 0x49, 0x46,// 2
0x00, 0x21, 0x41, 0x45, 0x4B, 0x31,// 3
0x00, 0x18, 0x14, 0x12, 0x7F, 0x10,// 4
0x00, 0x27, 0x45, 0x45, 0x45, 0x39,// 5
0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6
0x00, 0x01, 0x71, 0x09, 0x05, 0x03,// 7
0x00, 0x36, 0x49, 0x49, 0x49, 0x36,// 8
0x00, 0x06, 0x49, 0x49, 0x29, 0x1E,// 9
0x00, 0x00, 0x36, 0x36, 0x00, 0x00,// :
0x00, 0x00, 0x56, 0x36, 0x00, 0x00,// ;
0x00, 0x08, 0x14, 0x22, 0x41, 0x00,// <
0x00, 0x14, 0x14, 0x14, 0x14, 0x14,// =
0x00, 0x00, 0x41, 0x22, 0x14, 0x08,// >
0x00, 0x02, 0x01, 0x51, 0x09, 0x06,// ?
0x00, 0x32, 0x49, 0x59, 0x51, 0x3E,// @
0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C,// A
0x00, 0x7F, 0x49, 0x49, 0x49, 0x36,// B
0x00, 0x3E, 0x41, 0x41, 0x41, 0x22,// C
0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C,// D
0x00, 0x7F, 0x49, 0x49, 0x49, 0x41,// E
0x00, 0x7F, 0x09, 0x09, 0x09, 0x01,// F
0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A,// G
0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F,// H
0x00, 0x00, 0x41, 0x7F, 0x41, 0x00,// I
0x00, 0x20, 0x40, 0x41, 0x3F, 0x01,// J
0x00, 0x7F, 0x08, 0x14, 0x22, 0x41,// K
0x00, 0x7F, 0x40, 0x40, 0x40, 0x40,// L
0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F,// M
0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F,// N
0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E,// O
0x00, 0x7F, 0x09, 0x09, 0x09, 0x06,// P
0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q
0x00, 0x7F, 0x09, 0x19, 0x29, 0x46,// R
0x00, 0x46, 0x49, 0x49, 0x49, 0x31,// S
0x00, 0x01, 0x01, 0x7F, 0x01, 0x01,// T
0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F,// U
0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F,// V
0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F,// W
0x00, 0x63, 0x14, 0x08, 0x14, 0x63,// X
0x00, 0x07, 0x08, 0x70, 0x08, 0x07,// Y
0x00, 0x61, 0x51, 0x49, 0x45, 0x43,// Z
0x00, 0x00, 0x7F, 0x41, 0x41, 0x00,// [
0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55,// 55
0x00, 0x00, 0x41, 0x41, 0x7F, 0x00,// ]
0x00, 0x04, 0x02, 0x01, 0x02, 0x04,// ^
0x00, 0x40, 0x40, 0x40, 0x40, 0x40,// _
0x00, 0x00, 0x01, 0x02, 0x04, 0x00,// '
0x00, 0x20, 0x54, 0x54, 0x54, 0x78,// a
0x00, 0x7F, 0x48, 0x44, 0x44, 0x38,// b
0x00, 0x38, 0x44, 0x44, 0x44, 0x20,// c
0x00, 0x38, 0x44, 0x44, 0x48, 0x7F,// d
0x00, 0x38, 0x54, 0x54, 0x54, 0x18,// e
0x00, 0x08, 0x7E, 0x09, 0x01, 0x02,// f
0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C,// g
0x00, 0x7F, 0x08, 0x04, 0x04, 0x78,// h
0x00, 0x00, 0x44, 0x7D, 0x40, 0x00,// i
0x00, 0x40, 0x80, 0x84, 0x7D, 0x00,// j
0x00, 0x7F, 0x10, 0x28, 0x44, 0x00,// k
0x00, 0x00, 0x41, 0x7F, 0x40, 0x00,// l
0x00, 0x7C, 0x04, 0x18, 0x04, 0x78,// m
0x00, 0x7C, 0x08, 0x04, 0x04, 0x78,// n
0x00, 0x38, 0x44, 0x44, 0x44, 0x38,// o
0x00, 0xFC, 0x24, 0x24, 0x24, 0x18,// p
0x00, 0x18, 0x24, 0x24, 0x18, 0xFC,// q
0x00, 0x7C, 0x08, 0x04, 0x04, 0x08,// r
0x00, 0x48, 0x54, 0x54, 0x54, 0x20,// s
0x00, 0x04, 0x3F, 0x44, 0x40, 0x20,// t
0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C,// u
0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C,// v
0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C,// w
0x00, 0x44, 0x28, 0x10, 0x28, 0x44,// x
0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C,// y
0x00, 0x44, 0x64, 0x54, 0x4C, 0x44,// z
0x14, 0x14, 0x14, 0x14, 0x14, 0x14,// horiz lines
};
//16*8 ASCII字符集点阵
const unsigned char F8X16[]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//sp /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
0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} /92
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00};//| /93
//部分汉字 阴码，列行式，逆向
const unsigned char Hzk[][32]=
{
{0x20,0x24,0x24,0x24,0xFE,0x23,0x22,0x20,0x20,0xFF,0x20,0x22,0x2C,0xA0,0x20,0x00},
{0x00,0x08,0x48,0x84,0x7F,0x02,0x41,0x40,0x20,0x13,0x0C,0x14,0x22,0x41,0xF8,0x00},/*"我",0*/
/* (16 X 16 , 宋体 )*/
{0x00,0x00,0x00,0x7F,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x7F,0x00,0x00,0x00,0x00},
{0x81,0x41,0x21,0x1D,0x21,0x41,0x81,0xFF,0x89,0x89,0x89,0x89,0x89,0x81,0x81,0x00},/*"是",1*/
/* (16 X 16 , 宋体 )*/
{0x04,0x04,0x44,0xC4,0x4F,0x44,0x44,0xC4,0x24,0x24,0x2F,0xB4,0x24,0x04,0x04,0x00},
{0x40,0x44,0x24,0x24,0x15,0x0C,0x04,0xFE,0x04,0x0C,0x15,0x24,0x24,0x44,0x40,0x00},/*"菜",2*/
/* (16 X 16 , 宋体 )*/
{0x08,0x48,0x88,0x08,0xC8,0x38,0x00,0x00,0xFC,0x06,0x15,0x44,0x84,0x7C,0x00,0x00},
{0x20,0x10,0x0C,0x03,0x04,0x18,0x00,0x10,0x13,0x12,0x12,0x52,0x92,0x42,0x3E,0x00},/*"鸡",3*/
/* (16 X 16 , 宋体 )*/
};
//128*64图片
unsigned char BMP1[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x00,0x40,0xE0,0xE0,0x60,
0x00,0x40,0x80,0x00,0x00,0x00,0x80,0x80,0x60,0x60,0x10,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x90,0xB2,0x66,0x6E,0xEC,0xC9,0x83,0x02,0x00,0x40,0x80,
0x00,0x0C,0x0C,0x01,0x03,0x07,0x0F,0x11,0x20,0x40,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x08,0x18,0x3B,0x37,0x66,0xEE,0xEE,0xCC,0x88,0x80,0x00,0x00,
0x01,0x02,0x04,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x0F,0x00,0x00,0x00,0x00,0x00,
0x00,0x3E,0x40,0x40,0x40,0x3E,0x00,0x7E,0x04,0x08,0x10,0x7E,0x00,0x7E,0x00,0x3C,
0x42,0x42,0x42,0x42,0x00,0x7E,0x42,0x42,0x42,0x7E,0x00,0x7E,0x04,0x08,0x10,0x7E,/*"C:\Users\HP\Desktop\UNICORN.BMP",0*/
};
oledfont.h
#ifndef OLED_OLEDFONT_H_
#define OLED_OLEDFONT_H_
extern const unsigned char F6x8[][6];
extern const unsigned char F8X16[];
extern const unsigned char Hzk[][32];
extern unsigned char BMP1[];
//extern unsigned char BMP2[].........
#endif /* OLED_OLEDFONT_H_ */二.移植过程
1.解析OLED.c源码
之前移植过STM32HAL库的硬件I2C,里面最重要的就是下面这两个函数,它们分别是写控制命令和写数据
移植到MSPM0时就是基于这两个函数修改的
/**
* @function: void OLED_WR_CMD(uint8_t cmd)
* @description: 向设备写控制命令
* 第一个参数是指向I2C_HandleTypeDef结构的指针，该结构包含I2C总线的配置和状态信息。
* 第二个参数是I2C设备的地址（在这里是0x78）
* 第三个参数是要写入的内存地址（在这里是0x00）
* 第四个参数是内存地址大小（在这里是8位）
* 第五个参数是指向要写入数据的缓冲区的指针
* 第六个参数是要写入的字节数（在这里是1）
* 最后一个参数是超时时间（在这里是0x100，即256）。
* 这个函数的作用是通过I2C总线向OLED屏幕发送命令，控制其显示属性和行为。
* @param {uint8_t} cmd 芯片手册规定的命令
* @return {*}
*/
void OLED_WR_CMD(uint8_t cmd)
{
HAL_I2C_Mem_Write(&hi2c1 ,0x78,0x00,I2C_MEMADD_SIZE_8BIT,&cmd,1,0x100);
}
/**
* @function: void OLED_WR_DATA(uint8_t data)
* @description: 向设备写控制数据
* @param {uint8_t} data 数据
* @return {*}
*/
void OLED_WR_DATA(uint8_t data)
{
HAL_I2C_Mem_Write(&hi2c1 ,0x78,0x40,I2C_MEMADD_SIZE_8BIT,&data,1,0x100);
}不难发现,HAL_I2C_Men_Write()函数里面包含7个参数,其中比较重要的是第二个参数:设备地址,和第三个参数:写入的内存地址,移植的时候非常有用
2.在CCS打开TI的官方I2C示例
打开ccs,选择新建工程,也就是Create a new project
然后选择设备G3507,在keyword一栏输入i2c
然后下滑找到'i2c_controller_rw_multibyte_fifo_poll',然后点击右下角creat,任选一个编译器,然后生成工程
打开成功后,可以在左侧找到i2c_controller_rw_multibyte_fifo_poll.c文件,打开它,然后就能看到如下的main函数
int main(void)
{
SYSCFG_DL_init();
/* Set LED to indicate start of transfer */
DL_GPIO_setPins(GPIO_LEDS_PORT, GPIO_LEDS_USER_LED_1_PIN);
/*
* Fill FIFO with data. This example will send a MAX of 8 bytes since it
* doesn't handle the case where FIFO is full
*/
DL_I2C_fillControllerTXFIFO(I2C_INST, &gTxPacket[0], I2C_TX_PACKET_SIZE);
/* Wait for I2C to be Idle */
while (!(
DL_I2C_getControllerStatus(I2C_INST) & DL_I2C_CONTROLLER_STATUS_IDLE))
;
/* Send the packet to the controller.
* This function will send Start + Stop automatically.
*/
DL_I2C_startControllerTransfer(I2C_INST, I2C_TARGET_ADDRESS,
DL_I2C_CONTROLLER_DIRECTION_TX, I2C_TX_PACKET_SIZE);
/* Poll until the Controller writes all bytes */
while (DL_I2C_getControllerStatus(I2C_INST) &
DL_I2C_CONTROLLER_STATUS_BUSY_BUS)
;
/* Trap if there was an error */
if (DL_I2C_getControllerStatus(I2C_INST) &
DL_I2C_CONTROLLER_STATUS_ERROR) {
/* LED will remain high if there is an error */
__BKPT(0);
}
/* Wait for I2C to be Idle */
while (!(
DL_I2C_getControllerStatus(I2C_INST) & DL_I2C_CONTROLLER_STATUS_IDLE))
;
/* Add delay between transfers */
delay_cycles(1000);
/* Send a read request to Target */
DL_I2C_startControllerTransfer(I2C_INST, I2C_TARGET_ADDRESS,
DL_I2C_CONTROLLER_DIRECTION_RX, I2C_RX_PACKET_SIZE);
/*
* Receive all bytes from target. LED will remain high if not all bytes
* are received
*/
for (uint8_t i = 0; i < I2C_RX_PACKET_SIZE; i++) {
while (DL_I2C_isControllerRXFIFOEmpty(I2C_INST))
;
gRxPacket[i] = DL_I2C_receiveControllerData(I2C_INST);
}
/* If write and read were successful, toggle LED */
while (1) {
DL_GPIO_togglePins(GPIO_LEDS_PORT,
GPIO_LEDS_USER_LED_1_PIN | GPIO_LEDS_USER_TEST_PIN);
delay_cycles(16000000);
}
}其中的LED函数以及操控GPIO的函数可以忽略,由于我们使用oled,所以下半部分读取从机数据的代码也可以忽略,最后我们只剩下下面一点代码
/*
* Fill FIFO with data. This example will send a MAX of 8 bytes since it
* doesn't handle the case where FIFO is full
*/
DL_I2C_fillControllerTXFIFO(I2C_INST, &gTxPacket[0], I2C_TX_PACKET_SIZE);
/* Wait for I2C to be Idle */
while (!(
DL_I2C_getControllerStatus(I2C_INST) & DL_I2C_CONTROLLER_STATUS_IDLE))
;
/* Send the packet to the controller.
* This function will send Start + Stop automatically.
*/
DL_I2C_startControllerTransfer(I2C_INST, I2C_TARGET_ADDRESS,
DL_I2C_CONTROLLER_DIRECTION_TX, I2C_TX_PACKET_SIZE);
/* Poll until the Controller writes all bytes */
while (DL_I2C_getControllerStatus(I2C_INST) &
DL_I2C_CONTROLLER_STATUS_BUSY_BUS)
;
/* Trap if there was an error */
if (DL_I2C_getControllerStatus(I2C_INST) &
DL_I2C_CONTROLLER_STATUS_ERROR) {
/* LED will remain high if there is an error */
__BKPT(0);
}
/* Wait for I2C to be Idle */
while (!(
DL_I2C_getControllerStatus(I2C_INST) & DL_I2C_CONTROLLER_STATUS_IDLE))
;
/* Add delay between transfers */
delay_cycles(1000);
/* Send a read request to Target */
DL_I2C_startControllerTransfer(I2C_INST, I2C_TARGET_ADDRESS,
DL_I2C_CONTROLLER_DIRECTION_RX, I2C_RX_PACKET_SIZE);可以看到,DL库的I2C数据发送流程是通过DL_I2C_fillControllerTXFIFO这个函数填充FIFO,然后通过DL_I2C_startControllerTransfer这个函数发送起始位＋数据＋STOP信号,上面两个while循环是等待操作完成,最下面的是一个异常捕获,如果有需要可以在里面写恢复i2c通信的代码,我暂时没有用到,所以就删了
直接把这两个函数拿出来,对照刚刚HAL库的数据改一下
/*
* Fill FIFO with data. This example will send a MAX of 8 bytes since it
* doesn't handle the case where FIFO is full
*/
DL_I2C_fillControllerTXFIFO(I2C_INST, &gTxPacket[0], I2C_TX_PACKET_SIZE);
/* Send the packet to the controller.
* This function will send Start + Stop automatically.
*/
DL_I2C_startControllerTransfer(I2C_INST, I2C_TARGET_ADDRESS,
DL_I2C_CONTROLLER_DIRECTION_TX, I2C_TX_PACKET_SIZE);I2C_INST参数: 可以简单理解为宏定义,就像是上面hal库里面写的&hi2c1一样
&gTxPacket[0]: 要发送的数据
I2C_TX_PACEKT_SIZE: 宏定义,定义发送数据的大小,以字节为单位
I2C_TARGET_ADDRESS: 这个好理解,看英文就是目标地址(也就是从机地址),不过这里要十分注意!!,hal里的i2c设备地址是8位的,在mspm0里需要把0x78右移一位,变成0x3c
DL_I2C_CONTROLLER_DIRECTION_TX: 发送方向,直接填这个就完事了
好像就做完了?但是细心的小伙伴就发现了,刚刚我们在hal库的i2c传输函数有7个参数,但这里只有5个
看看漏了什么,回去看看函数的注释,发现我们漏掉了写入内存的地址和超时时间,超时时间我暂时用不到,所以就不写了,然后是写入内存的地址,这里涉及I2C通信的一些协议,具体的可以问问ai,我这里就简单说一下,因为hal库的封装程度比较高,所以它发送的数据是 要访问的内存地址+数据但是DL库里面没有,我们只能自己写
简单的做法是新建一个uint8_t的数组,把要访问的地址写在数组第一个,然后数据写在第二个,具体做法就是:
uint8_t packet[2];
packet[0] = 0x00; // 控制字节（表示写命令）
packet[1] = cmd; // 命令本体基础工作到这就做完了
3.移植到CCS
创建工程部分我不再赘述了,直接开始进行图形化配置
1.打开右侧.syscfg文件,在I2C选项卡中如下图配置,I2C0,速度1Mhz
其他选项保持默认也没有什么大问题,CTRL+S保存
在工作区里新建OLED.c,OLED.h,oledfont.c,oledfont.h,文章开头已经给出
删除stm32部分,把OLED.c最关键的两个函数OLED_WR_CMD和OLED_WR_DATA直接改为
#define I2C_INST I2C0
#define I2C_TARGET_ADDRESS 0x3C
#define I2C_TX_PACKET_SIZE 2
/**
* @function: void OLED_WR_CMD(uint8_t cmd)
* @description: 向设备写控制命令
* 第一个参数是指向I2C_HandleTypeDef结构的指针，该结构包含I2C总线的配置和状态信息。
* 第二个参数是I2C设备的地址（在这里是0x78）
* 第三个参数是要写入的内存地址（在这里是0x00）
* 第四个参数是内存地址大小（在这里是8位）
* 第五个参数是指向要写入数据的缓冲区的指针
* 第六个参数是要写入的字节数（在这里是1）
* 最后一个参数是超时时间（在这里是0x100，即256）。
* 这个函数的作用是通过I2C总线向OLED屏幕发送命令，控制其显示属性和行为。
* @param {uint8_t} cmd 芯片手册规定的命令
* @return {*}
*/
void OLED_WR_CMD(uint8_t cmd)
{
// HAL_I2C_Mem_Write(&hi2c1 ,0x78,0x00,I2C_MEMADD_SIZE_8BIT,&cmd,1,0x100);
uint8_t packet[2];
packet[0] = 0x00; // 控制字节（表示写命令）
packet[1] = cmd; // 命令本体
/*
* 填充FIFO,本实例只支持2字节数据
* 不处理FIFO满的情况
*/
DL_I2C_fillControllerTXFIFO(I2C_INST, packet, I2C_TX_PACKET_SIZE);
/* Wait for I2C to be Idle */
while (!(
DL_I2C_getControllerStatus(I2C_INST) & DL_I2C_CONTROLLER_STATUS_IDLE))
;
/*
* 向控制器发送数据包。
* 此功能将自动发送开始+停止。
*/
DL_I2C_startControllerTransfer(I2C_INST, I2C_TARGET_ADDRESS,
DL_I2C_CONTROLLER_DIRECTION_TX, I2C_TX_PACKET_SIZE);
/* 轮询,直到控制器发送完所有字节 */
while (DL_I2C_getControllerStatus(I2C_INST) &
DL_I2C_CONTROLLER_STATUS_BUSY_BUS)
;
}
/**
* @function: void OLED_WR_DATA(uint8_t data)
* @description: 向设备写控制数据
* @param {uint8_t} data 数据
* @return {*}
*/
void OLED_WR_DATA(uint8_t data)
{
// HAL_I2C_Mem_Write(&hi2c1 ,0x78,0x40,I2C_MEMADD_SIZE_8BIT,&data,1,0x100);
uint8_t packet[2];
packet[0] = 0x40; // 控制字节（表示写命令）
packet[1] = data; // 命令本体
/*
* 填充FIFO,本实例只支持8字节数据
* 不处理栈满的情况
*/
DL_I2C_fillControllerTXFIFO(I2C_INST, packet, I2C_TX_PACKET_SIZE);
/* Wait for I2C to be Idle */
while (!(
DL_I2C_getControllerStatus(I2C_INST) & DL_I2C_CONTROLLER_STATUS_IDLE))
;
/* Send the packet to the controller.
* This function will send Start + Stop automatically.
*/
DL_I2C_startControllerTransfer(I2C_INST, I2C_TARGET_ADDRESS,
DL_I2C_CONTROLLER_DIRECTION_TX, I2C_TX_PACKET_SIZE);
/* Poll until the Controller writes all bytes */
while (DL_I2C_getControllerStatus(I2C_INST) &
DL_I2C_CONTROLLER_STATUS_BUSY_BUS)
;
}别忘了加宏定义!!!
OLED.h文件直接修改为
#ifndef OLED_OLED_H_
#define OLED_OLED_H_
#include <stdint.h>
#include <ti_msp_dl_config.h>
#include "oledfont.h"
void OLED_WR_CMD(uint8_t cmd);
void OLED_WR_DATA(uint8_t data);
void OLED_Init(void);
void OLED_Clear(void);
void OLED_Display_On(void);
void OLED_Display_Off(void);
void OLED_Set_Pos(uint8_t x, uint8_t y);
void OLED_On(void);
void OLED_ShowNum(uint8_t x,uint8_t y,unsigned int num,uint8_t len,uint8_t size2,uint8_t Color_Turn);
void OLED_Showdecimal(uint8_t x,uint8_t y,float num,uint8_t z_len,uint8_t f_len,uint8_t size2, uint8_t Color_Turn);
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t Char_Size,uint8_t Color_Turn);
void OLED_ShowString(uint8_t x,uint8_t y,char*chr,uint8_t Char_Size,uint8_t Color_Turn);
void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no,uint8_t Color_Turn);
void OLED_DrawBMP(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t * BMP,uint8_t Color_Turn);
void OLED_HorizontalShift(uint8_t direction);
void OLED_Some_HorizontalShift(uint8_t direction,uint8_t start,uint8_t end);
void OLED_VerticalAndHorizontalShift(uint8_t direction);
void OLED_DisplayMode(uint8_t mode);
void OLED_IntensityControl(uint8_t intensity);
#endif /* OLED_OLED_H_ */其他不用改,然后在主函数里写
#include "ti_msp_dl_config.h"
#include "OLED.h"
int main(void)
{
SYSCFG_DL_init();
OLED_Init();
OLED_Clear();
while (1) {
OLED_ShowString(0, 0, "helloworld", 16, 1);
OLED_ShowString(0, 2, "welcome to mspm0", 12, 0);
}
}到此就大功告成了!
小补充:使用16号字体会占用Y轴2个单位,使用12号字体则只占用1个Y轴单位
三.运行结果
四.问题补充
目前发现在极端条件下(快速连续多次点击复位键)会导致I2C死锁,已经解决(使用软件复位,发送脉冲让从机恢复),过几天有空会开个新帖,到时会把链接贴上来
写了几个小时,写到头脑发昏,有错误欢迎指出,我的理解很浅,大佬们轻喷/(ㄒoㄒ)/~~
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