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SPI通讯协议
SPI是一个同步的数据总线,也就是说它是用单独的数据线和一个单独的时钟信号来保证发送端和接收端的完美同步。
时钟是一个振荡信号,它告诉接收端在确切的时机对数据线上的信号进行采样。
产生时钟的一侧称为主机,另一侧称为从机。总是只有一个主机(一般来说可以是微控制器/MCU),但是可以有多个从机(后面详细介绍);
数据的采集时机可能是时钟信号的上升沿(从低到高)或下降沿(从高到低)。
具体要看对SPI的配置;
整体的传输大概可以分为以下几个过程:
由于时钟是随数据一起发送的,因此指定数据的传输速度并不重要,尽管设备将具有可以运行的最高速度(稍后我们将讨论选择合适的时钟边沿和速度)。
具体如下图所示;
SPI的时序
注意,SPI是“全双工”(具有单独的发送和接收线路),因此可以在同一时间发送和接收数据,另外SPI的接收硬件可以是一个简单的移位寄存器。这比异步串行通信所需的完整UART要简单得多,并且更加便宜;
SPI总线包括4条逻辑线,定义如下:
其他制造商可能会遵循其他命名规则,但是最终他们指的相同的含义。以下是一些常用术语;
SPI总线上的主机必须在通信开始时候配置并生成相应的时钟信号。在每个SPI时钟周期内,都会发生全双工数据传输。
主机在MOSI线上发送一位数据,从机读取它,而从机在MISO线上发送一位数据,主机读取它。
就算只进行单向的数据传输,也要保持这样的顺序。这就意味着无论接收任何数据,必须实际发送一些东西!在这种情况下,我们称其为虚拟数据;
从理论上讲,只要实际可行,时钟速率就可以是您想要的任何速率,当然这个速率受限于每个系统能提供多大的系统时钟频率,以及最大的SPI传输速率。
多从机模式
前面说到SPI总线必须有一个主机,可以有多个从机,那么具体连接到SPI总线的方法有以下两种:
第一种方法:多NSS
具体连接方式如下图所示;
第二种方法:菊花链
在数字通信世界中,在设备信号(总线信号或中断信号)以串行的方式从一 个设备依次传到下一个设备,不断循环直到数据到达目标设备的方式被称为菊花链。
菊花链的最大缺点是因为是信号串行传输,所以一旦数据链路中的某设备发生故障的时候,它下面优先级较低的设备就不可能得到服务了;
另一方面,距离主机越远的从机,获得服务的优先级越低,所以需要安排好从机的优先级,并且设置总线检测器,如果某个从机超时,则对该从机进行短路,防止单个从机损坏造成整个链路崩溃的情况;
具体的连接如下图所示;
其中红线加粗为数据的流向;
所以最终的数据流向图可以表示为:
使SPI作为串行通信接口脱颖而出的原因很多;
1设置RCC时钟
设置高速外部时钟HSE 选择外部时钟源
2 SPI设置
SPI2设置为全双工主模式,硬件NSS关闭,如下图:
Mode 模式设置:
因为我们是和W25Q128V芯片闪存芯片进行通信,所以设置为主机全双工
不使能硬件NSS.
STM32有硬件NSS(片选信号),可以选择使能,也可以使用其他IO口接到芯片的NSS上进行代替.
如果片选引脚没有连接 SPI1_NSS(PA4)或者SPI2_NSS(PB12),则需要选择软件片选.
NSS管脚及我们熟知的片选信号,作为主设备NSS管脚为高电平,从设备NSS管脚为低电平。当NSS管脚为低电平时,该spi设备被选中,可以和主设备进行通信。在stm32中,每个spi控制器的NSS信号引脚都具有两种功能,即输入和输出。所谓的输入就是NSS管脚的信号给自己。所谓的输出就是将NSS的信号送出去,给从机。
对于NSS的输入,又分为软件输入和硬件输入。
软件输入:
NSS分为内部管脚和外部管脚,通过设置spi_cr1寄存器的ssm位和ssi位都为1可以设置NSS管脚为软件输入模式且内部管脚提供的电平为高电平,其中SSM位为使能软件输入位。SSI位为设置内部管脚电平位。同理通过设置SSM和SSI位1和0则此时的NSS管脚为软件输入模式但内部管脚提供的电平为0。若从设备是一个其他的带有spi接口的芯片,并不能选择NSS管脚的方式,则可以有两种办法,一种是将NSS管脚直接接低电平。另一种就是通过主设备的任何一个gpio口去输出低电平选中从设备。
硬件输入:
主机接高电平,从机接低电平。
SPI配置默认如下:
SPI配置中设置数据长度为8bit,MSB先输出分频为64分频,则波特率为125KBits/s。其他为默认设置。
Motorla格式,CPOL设置为Low,CPHA设置为第一个边沿。不开启CRC检验,NSS为软件控制。
3.GPIO设置
由于我们想使用软件片选,故需要自己开启一个引脚来,左键对应的软件片选引脚,选择GPIO_Output(输出模式),然后点击GPIO,设置一下备注。
4 串口设置
我的是 外部晶振为8MHz
6 项目文件设置
然后点击GENERATE CODE 创建工程
在stm32f1xx_hal_spi.h头文件中可以看到spi的操作函数。分别对应轮询,中断和DMA三种控制方式。
- HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout);//发送数据
- HAL_StatusTypeDef HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout);//接收数据
1.SPI发送数据函数:
HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout);//发送数据
参数:
- *hspi: 选择SPI1/2,比如&hspi1,&hspi2
- *pData : 需要发送的数据,可以为数组
- Size: 发送数据的字节数,1 就是发送一个字节数据
- Timeout: 超时时间,就是执行发送函数最长的时间,超过该时间自动退出发送函数
SPI接收数据函数:
HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout);//接收数据
参数:
- *hspi: 选择SPI1/2,比如&hspi1,&hspi2
- *pData : 接收发送过来的数据的数组
- Size: 接收数据的字节数,1 就是接收一个字节数据
- Timeout: 超时时间,就是执行接收函数最长的时间,超过该时间自动退出接收函数
SPI接收回调函数:
HAL_SPI_TransmitReceive_IT(&hspi2, TXbuf,RXbuf,CommSize);
当SPI上接收出现了 CommSize个字节的数据后,中断函数会调用SPI回调函数:
HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi)
用户可以重新定义回调函数,编写预定功能即可,在接收完成之后便会进入回调函数.
四、SPI例程详解
这里我们用SPI驱动oeld屏幕显示:
OLED简介
OLED,即有机发光二极管( Organic Light Emitting Diode)。 OLED 由于同时具备自发光,不需背光源、对比度高、厚度薄、视角广、反应速度快、可用于挠曲性面板、使用温度范围广、构造及制程较简单等优异之特性。以目前的技术,OLED 的尺寸还难以大型化,但是分辨率确可以做到很高。在此我们使用的0.96 寸 OLED 显示屏。分辨率为128*64;
0.96寸OLED裸屏:
OLED 裸屏总共种接口包括:6800、8080 两种并行接口方式、3 线或 4 线的串行 SPI 接口方式、 IIC 接口方式(只需要 2 根线就可以控制 OLED 了!),这五种接口是通过屏上的 BS0~BS2 来配置的。
0.96 寸 OLED 模块(SPI接口模块):
oled.c
- //oled.c
- // 说明:
- // ----------------------------------------------------------------
- // GND 电源地
- // VCC 接5V或3.3v电源
- // D0 接PA5(SCL)
- // D1 接PA7(SDA)
- // RES 接PB0
- // DC 接PB1
- // CS 接PA4
- // ----------------------------------------------------------------
- //******************************************************************************/
-
- #include "oled.h"
- #include "stdlib.h"
- #include "oledfont.h"
- #include "main.h"
- #include "spi.h"
- //OLED的显存
- //存放格式如下.
- //[0]0 1 2 3 ... 127
- //[1]0 1 2 3 ... 127
- //[2]0 1 2 3 ... 127
- //[3]0 1 2 3 ... 127
- //[4]0 1 2 3 ... 127
- //[5]0 1 2 3 ... 127
- //[6]0 1 2 3 ... 127
- //[7]0 1 2 3 ... 127
-
-
- //cmd:数据/命令标志 0,表示命令;1,表示数据;
- void OLED_WR_Byte(uint8_t dat,uint8_t cmd)
- {
- if(cmd) //命令/数据标志位置为1,则表示传送的是命令字节
- OLED_DC_Set();
- else //命令/数据标志位置为0,则表示传送的是数据字节
- OLED_DC_Clr();
- OLED_CS_Clr(); //片选信号为低,表示选中OLED
- HAL_SPI_Transmit(&hspi1,&dat,1,1000);//oled.c文件唯一修改的地方,这里是利用了hal库提供的SPI传送函数
- OLED_CS_Set();
- OLED_DC_Set();
- }
-
- void OLED_Set_Pos(unsigned char x, unsigned char y)
- {
- OLED_WR_Byte(0xb0+y,OLED_CMD);
- OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
- OLED_WR_Byte((x&0x0f)|0x01,OLED_CMD);
- }
- //开启OLED显示
- void OLED_Display_On(void)
- {
- OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
- OLED_WR_Byte(0X14,OLED_CMD); //DCDC ON
- OLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON
- }
- //关闭OLED显示
- void OLED_Display_Off(void)
- {
- OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
- OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFF
- OLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF
- }
- //清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!
- void OLED_Clear(void)
- {
- uint8_t i,n;
- for(i=0;i<8;i++)
- {
- OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址(0~7)
- OLED_WR_Byte (0x00,OLED_CMD); //设置显示位置—列低地址
- OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址
- for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA);
- } //更新显示
- }
-
-
- //在指定位置显示一个字符,包括部分字符
- //x:0~127
- //y:0~63
- //mode:0,反白显示;1,正常显示
- //size:选择字体 16/12
- void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr)
- {
- unsigned char c=0,i=0;
- c=chr-' ';//得到偏移后的值
- if(x>Max_Column-1){x=0;y=y+2;}
- if(SIZE ==16)
- {
- OLED_Set_Pos(x,y);
- for(i=0;i<8;i++)
- OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
- OLED_Set_Pos(x,y+1);
- for(i=0;i<8;i++)
- OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
- }
- else {
- OLED_Set_Pos(x,y+1);
- for(i=0;i<6;i++)
- OLED_WR_Byte(F6x8[c][i],OLED_DATA);
-
- }
- }
- //m^n函数
- uint32_t oled_pow(uint8_t m,uint8_t n)
- {
- uint32_t result=1;
- while(n--)result*=m;
- return result;
- }
- //显示2个数字
- //x,y :起点坐标
- //len :数字的位数
- //size:字体大小
- //mode:模式 0,填充模式;1,叠加模式
- //num:数值(0~4294967295);
- void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size)
- {
- 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+(size/2)*t,y,' ');
- continue;
- }else enshow=1;
-
- }
- OLED_ShowChar(x+(size/2)*t,y,temp+'0');
- }
- }
- //显示一个字符号串
- void OLED_ShowString(uint8_t x,uint8_t y,uint8_t *chr)
- {
- unsigned char j=0;
- while (chr[j]!='\0')
- { OLED_ShowChar(x,y,chr[j]);
- x+=8;
- if(x>120){x=0;y+=2;}
- j++;
- }
- }
- //显示汉字
- void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no)
- {
- uint8_t t,adder=0;
- OLED_Set_Pos(x,y);
- for(t=0;t<16;t++)
- {
- OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);
- adder+=1;
- }
- OLED_Set_Pos(x,y+1);
- for(t=0;t<16;t++)
- {
- OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);
- adder+=1;
- }
- }
- /***********功能描述:显示显示BMP图片128×64起始点坐标(x,y),x的范围0~127,y为页的范围0~7*****************/
- 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_Set_Pos(x0,y);
- for(x=x0;x<x1;x++)
- {
- OLED_WR_Byte(BMP[j++],OLED_DATA);
- }
- }
- }
-
-
- //初始化SSD1306
- void OLED_Init(void)
- {
- OLED_RST_Set();
- HAL_Delay(200);
- OLED_RST_Clr();
- HAL_Delay(200);
- OLED_RST_Set();
-
- OLED_WR_Byte(0xAE,OLED_CMD);//--turn off oled panel
- OLED_WR_Byte(0x00,OLED_CMD);//---set low column address
- OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
- OLED_WR_Byte(0x40,OLED_CMD);//--set start line address Set Mapping RAM Display Start Line (0x00~0x3F)
- OLED_WR_Byte(0x81,OLED_CMD);//--set contrast control register
- OLED_WR_Byte(0xCF,OLED_CMD); // Set SEG Output Current Brightness
- OLED_WR_Byte(0xA1,OLED_CMD);//--Set SEG/Column Mapping 0xa0左右反置 0xa1正常
- OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常
- OLED_WR_Byte(0xA6,OLED_CMD);//--set normal display
- OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
- OLED_WR_Byte(0x3f,OLED_CMD);//--1/64 duty
- OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset Shift Mapping RAM Counter (0x00~0x3F)
- OLED_WR_Byte(0x00,OLED_CMD);//-not offset
- OLED_WR_Byte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency
- OLED_WR_Byte(0x80,OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
- OLED_WR_Byte(0xD9,OLED_CMD);//--set pre-charge period
- OLED_WR_Byte(0xF1,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
- OLED_WR_Byte(0xDA,OLED_CMD);//--set com pins hardware configuration
- OLED_WR_Byte(0x12,OLED_CMD);
- OLED_WR_Byte(0xDB,OLED_CMD);//--set vcomh
- OLED_WR_Byte(0x40,OLED_CMD);//Set VCOM Deselect Level
- OLED_WR_Byte(0x20,OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)
- OLED_WR_Byte(0x02,OLED_CMD);//
- OLED_WR_Byte(0x8D,OLED_CMD);//--set Charge Pump enable/disable
- OLED_WR_Byte(0x14,OLED_CMD);//--set(0x10) disable
- OLED_WR_Byte(0xA4,OLED_CMD);// Disable Entire Display On (0xa4/0xa5)
- OLED_WR_Byte(0xA6,OLED_CMD);// Disable Inverse Display On (0xa6/a7)
- OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
-
- OLED_WR_Byte(0xAF,OLED_CMD); /*display ON*/
- OLED_Clear();
- OLED_Set_Pos(0,0);
- }
-
oled.h
- //oled.h
- #ifndef __OLED_H
- #define __OLED_H
-
- #include "main.h"
-
- #define SIZE 16
- #define XLevelL 0x00
- #define XLevelH 0x10
- #define Max_Column 128
- #define Max_Row 64
- #define Brightness 0xFF
- #define X_WIDTH 128
- #define Y_WIDTH 64
-
- //-----------------测试LED端口定义----------------
- #define OLED_RST_Pin GPIO_PIN_0
- #define OLED_DC_Pin GPIO_PIN_1
- #define OLED_CS_Pin GPIO_PIN_4
-
- #define OLED_RST_GPIO GPIOB
- #define OLED_DC_GPIO GPIOB
- #define OLED_CS_GPIO GPIOA
-
- //-----------------OLED端口定义----------------
-
-
- #define OLED_RST_Clr() HAL_GPIO_WritePin(OLED_RST_GPIO,OLED_RST_Pin,GPIO_PIN_RESET)//RES
- #define OLED_RST_Set() HAL_GPIO_WritePin(OLED_RST_GPIO,OLED_RST_Pin,GPIO_PIN_SET)
-
- #define OLED_DC_Clr() HAL_GPIO_WritePin(OLED_DC_GPIO,OLED_DC_Pin,GPIO_PIN_RESET)//DC
- #define OLED_DC_Set() HAL_GPIO_WritePin(OLED_DC_GPIO,OLED_DC_Pin,GPIO_PIN_SET)
-
-
- #define OLED_CS_Clr() HAL_GPIO_WritePin(OLED_CS_GPIO,OLED_CS_Pin,GPIO_PIN_RESET)//CS
- #define OLED_CS_Set() HAL_GPIO_WritePin(OLED_CS_GPIO,OLED_CS_Pin,GPIO_PIN_SET)
-
- #define OLED_CMD 0 //写命令
- #define OLED_DATA 1 //写数据
-
-
- //OLED控制用函数
- void OLED_WR_Byte(uint8_t dat,uint8_t cmd);
- void OLED_Display_On(void);
- void OLED_Display_Off(void);
- void OLED_Init(void);
- void OLED_Clear(void);
- void OLED_DrawPoint(uint8_t x,uint8_t y,uint8_t t);
- void OLED_Fill(uint8_t x1,uint8_t y1,uint8_t x2,uint8_t y2,uint8_t dot);
- void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr);
- void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size);
- void OLED_ShowString(uint8_t x,uint8_t y, uint8_t *p);
- void OLED_Set_Pos(unsigned char x, unsigned char y);
- void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no);
- void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]);
- #endif
-
oledfont.h
- #ifndef __OLEDFONT_H__
- #define __OLEDFONT_H__
-
- #include "stm32f1xx_hal.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
- const unsigned char Hzk[][32]=
- {
- //平(0) 陆(1) 成(2) 江(3) ,(4)
-
- {0x00,0x02,0x02,0x12,0x62,0x02,0x02,0xFE,0x02,0x02,0x42,0x32,0x02,0x02,0x00,0x00},
- {0x01,0x01,0x01,0x01,0x01,0x01,0x01,0xFF,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x00},/*"平",0*/
- /* (16 X 16 , 宋体 )*/
-
- {0x00,0xFE,0x02,0x22,0xDA,0x06,0x80,0x88,0x88,0x88,0xFF,0x88,0x88,0x88,0x80,0x00},
- {0x00,0xFF,0x08,0x10,0x08,0x07,0x00,0x7C,0x40,0x40,0x7F,0x40,0x40,0xFC,0x00,0x00},/*"陆",1*/
- /* (16 X 16 , 宋体 )*/
-
- {0x00,0x00,0xF8,0x88,0x88,0x88,0x88,0x08,0x08,0xFF,0x08,0x09,0x0A,0xC8,0x08,0x00},
- {0x80,0x60,0x1F,0x00,0x10,0x20,0x1F,0x80,0x40,0x21,0x16,0x18,0x26,0x41,0xF8,0x00},/*"成",2*/
- /* (16 X 16 , 宋体 )*/
-
- {0x10,0x60,0x02,0x0C,0xC0,0x04,0x04,0x04,0x04,0xFC,0x04,0x04,0x04,0x04,0x00,0x00},
- {0x04,0x04,0x7C,0x03,0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x20,0x00},/*"江",3*/
- /* (16 X 16 , 宋体 )*/
-
- {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
- {0x00,0x00,0x58,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*",",4*/
- /* (16 X 16 , 宋体 )*/
-
-
-
- };
-
- #endif
-
main.c里面添加:
- OLED_Init();
- OLED_ShowNum(0,0,1,1,16);
- OLED_ShowNum(0,2,1,1,16);
- OLED_ShowNum(0,4,1,1,16);
- OLED_ShowNum(0,6,1,1,16);
-
- OLED_ShowString(8,0,"abc");
- OLED_ShowString(8,2,"abc");
- OLED_ShowString(8,4,"abc");
- OLED_ShowString(8,6,"abc");
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