基于W55MH32Q-EVB 实现 HTTP 服务器配置 OLED 滚动显示信息

玩转以太网2025-08-17 22:52

目录

[1 前言](#1 前言)

[2 项目环境](#2 项目环境)

[2.1 硬件准备](#2.1 硬件准备)

[2.2 软件环境](#2.2 软件环境)

3.硬件连接和方案

[3.1 硬件连接](#3.1 硬件连接)

[3.2 方案图示](#3.2 方案图示)

4.例程修改

5.运行结果

5.运行结果

6.总结

1 前言

HTTP（超文本传输协议，HyperText Transfer Protocol）是一种用于分布式、协作式、超媒体信息系统的应用层协议， 基于 TCP/IP 通信协议来传递数据，是万维网（WWW）的数据通信的基础。设计 HTTP 最初的目的是为了提供一种发布和接收 HTML 页面的方法，通过 HTTP 或者 HTTPS 协议请求的资源由统一资源标识符（Uniform Resource Identifiers，URI）来标识。 以上是 HTTP 协议的简介，如想深入了解该协议，请参考 mozilla 网站上的介绍：HTTP 概述 - HTTP | MDN

W55MH32Q-EVB 是基于 W55MH32L 芯片开发的一款开发板，主频为 216MHz，1MB 的闪存以及 96KB 的 SRAM，同时还具有一个完整的硬件 TCP/IP 卸载引擎，只需要简单的 socket 编程即可实现以太网应用。 具有以下特点：

  • 增强型、真随机数、硬件加密算法单元
  • 32 位 Arm® Cortex®-M3 核心的片上
  • 1024K 字节闪存的微控制器
  • 10/100M 以太网 MAC 和 PHY、集成完整的全硬件 TCP/IP 协议栈引擎
  • USB、CAN、17 个定时器
  • 3 个 ADC、2 个 DAC、12 个通信接口

产品链接：商品详情

2 项目环境

2.1 硬件准备

  • W55MH32Q-EVB 模块
  • 杜邦线若干
  • 交换机或路由器
  • oled 模块
  • 一根网线

2.2 软件环境

3.硬件连接和方案

3.1 硬件连接

复制代码 
1.W55MH32Q-EVB_3.3V ---> OLED_VCC`
`2.W55MH32Q-EVB_GND` `---> OLED_GND`
`3.W55MH32Q-EVB_SCL` `---> OLED_SCL`
`4.W55MH32Q-EVB_SDA` `---> OLED_SDA

3.2 方案图示

4.例程修改

本次以 HTTP_Server 为例：

找到 Webpage.h 将文件内容替换成以下内容

cpp 复制代码 
#ifndef _WEBPAGE_H_
#define _WEBPAGE_H_

/*************************************************************************************
 * HTML Pages (web pages)
 *************************************************************************************/

#define index_page "<html>\n"\
"<head>\n"\
"    <title>W55MH32 SMTP Configuration</title>\n"\
"    <style>\n"\
"        body {\n"\
"            font-family: Arial, sans-serif;\n"\
"            margin: 20px;\n"\
"            padding: 20px;\n"\
"            background-color: #f4f4f9;\n"\
"        }\n"\
"        h1 {\n"\
"            text-align: center;\n"\
"            color: #333;\n"\
"        }\n"\
"        form {\n"\
"            max-width: 400px;\n"\
"            margin: auto;\n"\
"            background: #ffffff;\n"\
"            padding: 20px;\n"\
"            border-radius: 8px;\n"\
"            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);\n"\
"        }\n"\
"        label {\n"\
"            display: block;\n"\
"            margin-bottom: 8px;\n"\
"            font-weight: bold;\n"\
"        }\n"\
"        input[type=text],\n"\
"        input[type=submit] {\n"\
"            width: 400px;\n"\
"            padding: 8px;\n"\
"            margin-bottom: 12px;\n"\
"            border: 1px solid #ccc;\n"\
"            border-radius: 4px;\n"\
"        }\n"\
"        input[type=submit] {\n"\
"            background-color: #4CAF50;\n"\
"            color: white;\n"\
"            border: none;\n"\
"            cursor: pointer;\n"\
"            margin-top: 20px;\n"\
"        }\n"\
"        input[type=submit]:hover {\n"\
"            background-color: #45a049;\n"\
"        }\n"\
"        textarea {\n"\
"            width: 400px;\n"\
"            height: 100px;\n"\
"            resize: none;\n"\
"            margin-bottom: 20px;\n"\
"        }\n"\
"    </style>\n"\
"    <script>\n"\
"    </script>\n"\
"</head>\n"\
"<body>\n"\
"    <h1>W55MH32 OLED DISPLAY Configuration</h1>\n"\
"    <form method=\"post\" action=\"config.cgi\" >\n"\
"        <label>text: </label><textarea name=\"text\">%s</textarea><br>\n"\
"        <label>\n"\
"            <input type=\"checkbox\" id=\"vehicle1\" name=\"is_Rolling\" value=\"Rolling\"> Rolling\n"\
"        </label>\n"\
"        <input type=\"submit\" value=\"OK\">\n"\
"    </form>\n"\
"</body>\n"\
"</html>\n"\

#define CONFIG_SUCCESS_PAGE "<html lang=en>\n"\
"<head>\n"\
"    <meta charset=UTF-8>\n"\
"    <meta name=viewport content=width=device-width, initial-scale=1.0>\n"\
"    <title>Configuration Modification Succeeded</title>\n"\
"    <style>\n"\
"        body {\n"\
"            font-family: Arial, sans-serif;\n"\
"            text-align: center;\n"\
"            padding-top: 100px;\n"\
"            background-color: #f0f0f0;\n"\
"        }\n"\
"        h1 {\n"\
"            color: skyblue;\n"\
"            animation: fadeInOut 2s infinite;\n"\
"        }\n"\
"    </style>\n"\
"</head>\n"\
"<body>\n"\
"    <h1>The device has received the message!</h1>\n"\
"    <h1>OLED will be displayed soon!</h1>\n"\
"<script>\n"\
"</script>\n"\
"</body>\n"\
"</html>\n"\

#endif

在 httpUtil.c 中修改 predefined_set_cgi_processor 函数，这个是处理浏览器提交过来的数据的函数，代码如下

复制代码 
uint8_t` `predefined_set_cgi_processor(uint8_t` `*uri_name,` `uint8_t` `*uri,` `uint8_t` `*buf,` `uint16_t` `*len)`
`{`
    `if` `(strcmp((const` `char` `*)uri_name,` `"config.cgi")` `==` `0)`
`    {`
        `uint8_t` `*param;`

        `param` `=` `get_http_param_value((char` `*)uri,` `"text");`
        `set_data(param);`
        `param` `=` `get_http_param_value((char` `*)uri,` `"is_Rolling");`

        `if` `(!strcmp(param,` `"Rolling"))`
`        {`
            `set_rolling_flag(1);`
`        }`
        `else`
`        {`
            `set_rolling_flag(0);`
`        }`

        `set_dispaly_flag(1);`

        `*len` `=` `sprintf((char` `*)buf,` `(char` `*)CONFIG_SUCCESS_PAGE);`
        `return` `1;`
`    }`
    `return` `0;`
`}

添加 oled.c 函数，用于控制 oled。通过向oled相应寄存器赋值，即可实现oled滚动。代码如下

复制代码 
#include` `"oled.h"`
`#include` `"delay.h"`
`#include` `"flash.h"`
`#include` `"oledfont.h"`
`#include` `"stdint.h"`
`#include` `"string.h"`
`#include` `"w55mh32.h"`

`unsigned` `char` `data[64] =` `"";`
`unsigned` `char` `is_rolling_flag` `=` `0;`
`unsigned` `char` `display_flag` `=` `0;`
`unsigned` `char` `startup_flag` `=` `1;`

`void` `IIC_Start()`
`{`

    `OLED_SCLK_Set();`

    `OLED_SDIN_Set();`

    `OLED_SDIN_Clr();`

    `OLED_SCLK_Clr();`
`}`

`/**********************************************`
`//IIC` `Stop`
`**********************************************/`
`void` `IIC_Stop()`
`{`
    `OLED_SCLK_Set();`

    `//`	`OLED_SCLK_Clr();`
    `OLED_SDIN_Clr();`

    `OLED_SDIN_Set();`
`}`

`void` `IIC_Wait_Ack()`
`{`

    `//` `GPIOB->CRH` `&= 0XFFF0FFFF;`
    `//` `GPIOB->CRH |= 0x00080000;`
    `//`	`OLED_SDA` `=` `1;`
    `//`	`delay_us(1);`
    `//` `OLED_SCL` `=` `1;`
    `//` `delay_us(50000);`
    `/*`	`while(1)`
`        {`
            `if(!OLED_SDA)`
`            {`
                `//GPIOB->CRH` `&= 0XFFF0FFFF;`
                `//GPIOB->CRH |= 0x00030000;`
                `return;`
`            }`
`        }`
    `*/`
    `OLED_SCLK_Set();`

    `OLED_SCLK_Clr();`
`}`
`/**********************************************`
`//` `IIC` `Write` `byte`
`**********************************************/`

`void` `Write_IIC_Byte(unsigned` `char` `IIC_Byte)`
`{`
    `unsigned` `char` `i;`
    `unsigned` `char` `m,` `da;`
    `da` `=` `IIC_Byte;`
    `OLED_SCLK_Clr();`

    `for` `(i` `=` `0;` `i` `<` `8;` `i++)`
`    {`
        `m` `=` `da;`
        `//`	`OLED_SCLK_Clr();`
        `m` `=` `m` `& 0x80;`
        `if` `(m` `== 0x80)`
`        {`
            `OLED_SDIN_Set();`
`        }`
        `else`
            `OLED_SDIN_Clr();`

        `da` `=` `da` `<<` `1;`
        `OLED_SCLK_Set();`

        `OLED_SCLK_Clr();`
`    }`
`}`
`/**********************************************`
`//` `IIC` `Write` `Command`
`**********************************************/`
`void` `Write_IIC_Command(unsigned` `char` `IIC_Command)`
`{`
    `IIC_Start();`
    `Write_IIC_Byte(0x78);` `//` `Slave` `address,SA0=0`
    `IIC_Wait_Ack();`
    `Write_IIC_Byte(0x00);` `//` `write` `command`
    `IIC_Wait_Ack();`
    `Write_IIC_Byte(IIC_Command);`
    `IIC_Wait_Ack();`
    `IIC_Stop();`
`}`
`/**********************************************`
`//` `IIC` `Write` `Data`
`**********************************************/`
`void` `Write_IIC_Data(unsigned` `char` `IIC_Data)`
`{`
    `IIC_Start();`
    `Write_IIC_Byte(0x78);` `//` `D/C#=0;` `R/W#=0`
    `IIC_Wait_Ack();`
    `Write_IIC_Byte(0x40);` `//` `write` `data`
    `IIC_Wait_Ack();`
    `Write_IIC_Byte(IIC_Data);`
    `IIC_Wait_Ack();`
    `IIC_Stop();`
`}`
`void` `OLED_WR_Byte(unsigned` `dat,` `unsigned` `cmd)`
`{`
    `if` `(cmd)`
        `Write_IIC_Data(dat);`
    `else`
        `Write_IIC_Command(dat);`
`}`

`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),` `OLED_CMD);`
`}`

`void` `OLED_Display_On(void)`
`{`
    `OLED_WR_Byte(0X8D,` `OLED_CMD);`

    `OLED_WR_Byte(0X14,` `OLED_CMD);` `//` `DCDC` `ON`

    `OLED_WR_Byte(0XAF,` `OLED_CMD);` `//` `DISPLAY` `ON`
`}`

`void` `OLED_Display_Off(void)`
`{`
    `OLED_WR_Byte(0X8D,` `OLED_CMD);`

    `OLED_WR_Byte(0X10,` `OLED_CMD);` `//` `DCDC` `OFF`

    `OLED_WR_Byte(0XAE,` `OLED_CMD);` `//` `DISPLAY` `OFF`
`}`

`void` `OLED_Clear(void)`
`{`
    `unsigned` `char` `i,` `n;`
    `for` `(i` `=` `0;` `i` `<` `8;` `i++)`
`    {`
        `OLED_WR_Byte(0xb0 +` `i,` `OLED_CMD);`

        `OLED_WR_Byte(0x00,` `OLED_CMD);`

        `OLED_WR_Byte(0x10,` `OLED_CMD);`

        `for` `(n` `=` `0;` `n` `<` `128;` `n++)`
            `OLED_WR_Byte(0,` `OLED_DATA);`
`    }`
`}`
`void` `OLED_On(void)`
`{`
    `unsigned` `char` `i,` `n;`
    `for` `(i` `=` `0;` `i` `<` `8;` `i++)`
`    {`
        `OLED_WR_Byte(0xb0 +` `i,` `OLED_CMD);`
        `OLED_WR_Byte(0x00,` `OLED_CMD);`
        `OLED_WR_Byte(0x10,` `OLED_CMD);`
        `for` `(n` `=` `0;` `n` `<` `128;` `n++)`
            `OLED_WR_Byte(1,` `OLED_DATA);`
`    }`
`}`

`void` `OLED_ShowChar(unsigned` `char` `x,` `unsigned` `char` `y,` `unsigned` `char` `chr,` `unsigned` `char` `Char_Size)`
`{`
    `unsigned` `char` `c` `=` `0,` `i` `=` `0;`
    `c` `=` `chr` `-` `' ';`
    `if` `(x` `>` `Max_Column` `-` `1)`
`    {`
        `x` `=` `0;`
        `y` `=` `y` `+` `2;`
`    }`
    `if` `(Char_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);`
        `for` `(i` `=` `0;` `i` `<` `6;` `i++)`
            `OLED_WR_Byte(F6x8[c][i],` `OLED_DATA);`
`    }`
`}`

`unsigned` `int` `oled_pow(unsigned` `char` `m,` `unsigned` `char` `n)`
`{`
    `unsigned` `int` `result` `=` `1;`
    `while` `(n--)`
        `result` `*=` `m;`
    `return` `result;`
`}`

`void` `OLED_ShowString(unsigned` `char` `x,` `unsigned` `char` `y,` `char` `*chr,` `unsigned` `char` `Char_Size)`
`{`
    `unsigned` `char` `j` `=` `0;`
    `while` `(chr[j] != '\0')`
`    {`
        `OLED_ShowChar(x,` `y,` `chr[j],` `Char_Size);`
        `x` `+=` `8;`
        `if` `(x` `>` `120)`
`        {`
            `x` `=` `0;`
            `y` `+=` `2;`
`        }`
        `j++;`
`    }`
`}`


`void` `OLED_Init(void)`
`{`
    `GPIO_InitTypeDef` `GPIO_InitStructure;`

    `RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,` `ENABLE);`
    `GPIO_InitStructure.GPIO_Pin` `=` `GPIO_Pin_5 | GPIO_Pin_6;`
    `GPIO_InitStructure.GPIO_Mode` `=` `GPIO_Mode_Out_PP;`
    `GPIO_InitStructure.GPIO_Speed` `=` `GPIO_Speed_50MHz;`
    `GPIO_Init(GPIOB,` `&GPIO_InitStructure);`
    `GPIO_SetBits(GPIOB,` `GPIO_Pin_5 | GPIO_Pin_6);`

    `delay_ms(800);`
    `OLED_WR_Byte(0xAE,` `OLED_CMD);`

    `OLED_WR_Byte(0x00,` `OLED_CMD);`
    `OLED_WR_Byte(0x10,` `OLED_CMD);`
    `OLED_WR_Byte(0xB0,` `OLED_CMD);`

    `OLED_WR_Byte(0x40,` `OLED_CMD);`

    `OLED_WR_Byte(0x81,` `OLED_CMD);`
    `OLED_WR_Byte(0xFF,` `OLED_CMD);`

    `OLED_WR_Byte(0xA1,` `OLED_CMD);`

    `OLED_WR_Byte(0xA6,` `OLED_CMD);`

    `OLED_WR_Byte(0xA8,` `OLED_CMD);`
    `OLED_WR_Byte(0x3F,` `OLED_CMD);`

    `OLED_WR_Byte(0xC8,` `OLED_CMD);`

    `OLED_WR_Byte(0xD3,` `OLED_CMD);`
    `OLED_WR_Byte(0x00,` `OLED_CMD);`

    `OLED_WR_Byte(0xD5,` `OLED_CMD);`
    `OLED_WR_Byte(0x80,` `OLED_CMD);`

    `OLED_WR_Byte(0xD9,` `OLED_CMD);`
    `OLED_WR_Byte(0xF1,` `OLED_CMD);`

    `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(0x14,` `OLED_CMD);`

    `OLED_WR_Byte(0xAF,` `OLED_CMD);`

    `OLED_Clear();`
`}`

`void` `set_data(unsigned` `char` `*dat)`
`{`
    `memset(data,` `0,` `sizeof(data));`

    `strcpy(data,` `dat);`
`}`

`void` `set_rolling_flag(unsigned` `char` `flag)`
`{`
    `is_rolling_flag` `=` `flag;`
`}`

`void` `set_dispaly_flag(unsigned` `char` `flag)`
`{`
    `display_flag` `=` `flag;`
`}`

`unsigned` `char` `get_dispaly_flag()`
`{`
    `return` `display_flag;`
`}`

`// 添加滚动控制函数`
`void` `OLED_StartHorizontalScroll(unsigned` `char` `direction,` `unsigned` `char` `start_page,`
                                `unsigned` `char` `end_page,` `unsigned` `char` `interval)`
`{`
    `OLED_WR_Byte(0x2E,` `OLED_CMD);` `// 关闭滚动`

    `// 设置滚动方向`
    `OLED_WR_Byte(direction,` `OLED_CMD);`  `// 0x26=右滚, 0x27=左滚`
    `OLED_WR_Byte(0x00,` `OLED_CMD);`       `// 虚拟字节`
    `OLED_WR_Byte(start_page,` `OLED_CMD);` `// 起始页 (0-7)`
    `OLED_WR_Byte(interval,` `OLED_CMD);`   `// 滚动间隔 (0-7, 数值越大越慢)`
    `OLED_WR_Byte(end_page,` `OLED_CMD);`   `// 终止页 (0-7)`
    `OLED_WR_Byte(0x00,` `OLED_CMD);`       `// 虚拟字节`
    `OLED_WR_Byte(0xFF,` `OLED_CMD);`       `// 虚拟字节`

    `OLED_WR_Byte(0x2F,` `OLED_CMD);` `// 启动滚动`
`}`

`// 停止滚动`
`void` `OLED_StopScroll(void)`
`{`
    `OLED_WR_Byte(0x2E,` `OLED_CMD);`
`}`

`void` `oled_display()`
`{`
    `unsigned` `char` `len` `=` `strlen(data);`
    `unsigned` `char` `*point` `=` `data;`
    `char` `buff[17] = {0};`

    `OLED_StopScroll();`

    `OLED_Clear();`

    `//` `clear` `buff`
    `for` `(unsigned` `char` `i` `=` `0;` `i` `<` `4;` `i++)`
`    {`
        `memset(buff,` `0,` `16);`
        `if` `(len` `>` `16)`
`        {`
            `strncpy(buff,` `(char` `*)point,` `16);`
            `OLED_ShowString(0,` `i` `*` `2,` `buff,` `16);`
            `point` `+=` `16;`
            `len` `-=` `16;`
`        }`
        `else`
`        {`
            `strcpy(buff,` `(char` `*)point);`
            `OLED_ShowString(0,` `i` `*` `2,` `buff,` `16);`
            `break;`
`        }`
`    }`

    `if` `(startup_flag)`
`    {`
        `startup_flag` `=` `0;`
`    }`
    `else`
`    {`
        `Flash_Write(data,` `is_rolling_flag);`
`    }`

    `// 启动滚动 (从第0页到第7页，向左滚动，速度中等)`
    `if` `(is_rolling_flag)`
        `OLED_StartHorizontalScroll(0x27,` `0,` `7,` `7);`
`}`
`

添加 oled.h 头文件，代码如下,可以修改对应的宏定义为自己的引脚

复制代码 
#ifndef __OLED_H`
`#define __OLED_H`
`#include` `"delay.h"`
`#include` `"stdlib.h"`

`#define` `OLED_MODE` `0`
`#define` `SIZE` `8`
`#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`

`#define` `OLED_SCLK_Clr()` `GPIO_ResetBits(GPIOB,` `GPIO_Pin_5)` `//` `SCL`
`#define` `OLED_SCLK_Set()` `GPIO_SetBits(GPIOB,` `GPIO_Pin_5)`

`#define` `OLED_SDIN_Clr()` `GPIO_ResetBits(GPIOB,` `GPIO_Pin_6)` `//` `SDA`
`#define` `OLED_SDIN_Set()` `GPIO_SetBits(GPIOB,` `GPIO_Pin_6)`

`#define` `OLED_CMD` `0`
`#define` `OLED_DATA` `1`

`void` `OLED_WR_Byte(unsigned` `dat,` `unsigned` `cmd);`
`void` `OLED_Display_On(void);`
`void` `OLED_Display_Off(void);`
`void` `OLED_Init(void);`
`void` `OLED_Clear(void);`
`void` `OLED_DrawPoint(unsigned` `char` `x,` `unsigned` `char` `y,` `unsigned` `char` `t);`
`void` `OLED_Fill(unsigned` `char` `x1,` `unsigned` `char` `y1,` `unsigned` `char` `x2,` `unsigned` `char` `y2,` `unsigned` `char` `dot);`
`void` `OLED_ShowChar(unsigned` `char` `x,` `unsigned` `char` `y,` `unsigned` `char` `chr,` `unsigned` `char` `Char_Size);`
`void` `OLED_ShowNum(unsigned` `char` `x,` `unsigned` `char` `y,` `unsigned` `int` `num,` `unsigned` `char` `len,` `unsigned` `char` `size);`
`void` `OLED_ShowString(unsigned` `char` `x,` `unsigned` `char` `y,` `char` `*p,` `unsigned` `char` `Char_Size);`
`void` `OLED_Set_Pos(unsigned` `char` `x,` `unsigned` `char` `y);`
`void` `OLED_ShowCHinese(unsigned` `char` `x,` `unsigned` `char` `y,` `unsigned` `char` `no);`
`void` `OLED_DrawBMP(unsigned` `char` `x0,` `unsigned` `char` `y0,` `unsigned` `char` `x1,` `unsigned` `char` `y1,` `unsigned` `char` `BMP[]);`
`void` `Delay_50ms(unsigned` `int` `Del_50ms);`
`void` `Delay_1ms(unsigned` `int` `Del_1ms);`
`void` `fill_picture(unsigned` `char` `fill_Data);`
`void` `Picture(void);`
`void` `IIC_Start(void);`
`void` `IIC_Stop(void);`
`void` `Write_IIC_Command(unsigned` `char` `IIC_Command);`
`void` `Write_IIC_Data(unsigned` `char` `IIC_Data);`
`void` `Write_IIC_Byte(unsigned` `char` `IIC_Byte);`
`void` `OLED_ShowDecimal(unsigned` `char` `x,` `unsigned` `char` `y,` `float` `num);`

`void` `IIC_Wait_Ack(void);`
`void` `OLED_ShowNumber(unsigned` `char` `x,` `unsigned` `char` `y,` `short` `num);`

`void` `set_data(unsigned` `char` `*dat);`
`void` `set_rolling_flag(unsigned` `char` `flag);`
`void` `set_dispaly_flag(unsigned` `char` `flag);`
`unsigned` `char` `get_dispaly_flag(void);`
`void` `oled_display(void);`
`#endif`
`

添加 flash.c 文件，用于保存显示内容到 flash，这样即使电源断开后，再次通电也能显示之前保存的显示内容。代码如下

复制代码 
#include` `"Flash.h"`
`#include` `"w55mh32_flash.h"`

`unsigned` `char` `Flash_Write(char` `*data1,` `unsigned` `char` `data2)`
`{`
    `unsigned` `char` `status` `=` `0;`
    `unsigned` `int` `address` `=` `startAddress;`

    `unsigned` `int` `rolling` `=` `data2;`
    `char` `str[100] =` `"";`
    `strcpy(str,` `data1);`

    `FLASH_Unlock();`

    `status` `=` `FLASH_ErasePage(startAddress);`

    `if` `(FLASH_COMPLETE !=` `status)`
        `return` `status;`

    `status` `=` `FLASH_ProgramWord(address,` `rolling);`
    `address` `+=` `4;`

    `if` `(FLASH_COMPLETE !=` `status)`
        `return` `status;`

    `unsigned` `char` `i;`
    `for` `(i` `=` `0;` `i` `<` `strlen(str)` `&&` `(status` `==` `FLASH_COMPLETE);` `i++)`
`    {`
        `status` `=` `FLASH_ProgramWord(address,` `str[i]);`
        `address` `+=` `4;`
`    }`

    `FLASH_ProgramWord(address, '\0');`

    `FLASH_Lock();`

    `return` `0;`
`}`

`void` `Flash_Read(char` `*str,` `unsigned` `char` `*rolling)`
`{`
    `unsigned` `int` `address` `=` `startAddress;`
    `char` `temp` `=` `' ';`

    `*rolling` `=` `(unsigned` `char)*(__IO uint32_t` `*)address;`

    `address` `+=` `4;`

    `for` `(unsigned` `char` `i` `=` `0;` `i` `<` `64;` `i++)`
`    {`
        `temp` `=` `(char)*(__IO uint32_t` `*)address;`
        `if` `(temp` `==` `0)`
`        {`
            `str[i] = '\0';`
            `return;`
`        }`

        `str[i] =` `temp;`
        `address` `+=` `4;`
`    }`
`}`
`

添加 flash.h 头文件，代码如下

复制代码 
#ifndef _FLASH_H`
`#define _FLASH_H`

`#include` `"string.h"`

`#define` `startAddress` `((uint32_t)0x08020000)`

`unsigned` `char` `Flash_Write(char` `*data1,` `unsigned` `char` `data2);`
`void` `Flash_Read(char` `*str,` `unsigned` `char` `*rolling);`

`#endif

修改主函数 main.c，代码如下：

复制代码 
#include` `"bsp_rcc.h"`
`#include` `"bsp_tim.h"`
`#include` `"bsp_uart.h"`
`#include` `"delay.h"`
`#include` `"flash.h"`
`#include` `"httpServer.h"`
`#include` `"oled.h"`
`#include` `"webpage.h"`
`#include` `"wiz_interface.h"`
`#include` `"wizchip_conf.h"`
`#include` `<stdio.h>`
`#include` `<stdlib.h>`
`#include` `<string.h>`

`#define` `SOCKET_ID` `0`
`#define` `ETHERNET_BUF_MAX_SIZE` `(1024` `*` `2)`

`/*` `network` `information` `*/`
`wiz_NetInfo` `default_net_info` `= {`
    `.mac` `= {0x00, 0x10, 0xdc, 0x12, 0x22, 0x12},`
    `.ip` `= {192,` `168,` `1,` `30},`
    `.gw` `= {192,` `168,` `1,` `1},`
    `.sn` `= {255,` `255,` `255,` `0},`
    `.dns` `= {8,` `8,` `8,` `8},`
    `.dhcp` `=` `NETINFO_DHCP};`

`static` `uint8_t` `ethernet_buf[ETHERNET_BUF_MAX_SIZE] = {0};`
`static` `uint8_t` `http_tx_ethernet_buf[ETHERNET_BUF_MAX_SIZE] = {0};`
`static` `uint8_t` `http_rx_ethernet_buf[ETHERNET_BUF_MAX_SIZE] = {0};`
`static` `uint8_t` `socknumlist[1] = {SOCKET_ID};`
`int` `main(void)`
`{`
    `char` `page[2048];`
    `char` `str[64] =` `"asdasdasd";`
    `unsigned` `char` `flag` `=` `0;`

    `wiz_NetInfo` `net_info;`
    `/*` `hardware` `initialization` `*/`
    `rcc_clk_config();`
    `delay_init();`
    `console_usart_init(115200);`

    `tim3_init();`

    `OLED_Init();`

    `printf("%s HTTP Server example\r\n", _WIZCHIP_ID_);`

    `/*` `wiztoe` `init` `*/`
    `wiz_toe_init();`

    `wiz_phy_link_check();`

    `network_init(ethernet_buf,` `&default_net_info);`

    `wizchip_getnetinfo(&net_info);`
    `printf("Please enter% d.% d.% d.% d in your browser to access the %s HTTP server\r\n",` `net_info.ip[0],` `net_info.ip[1],` `net_info.ip[2],` `net_info.ip[3], _WIZCHIP_ID_);`

    `// 查询flash`
    `Flash_Read(str,` `&flag);`
    `if` `(str !=` `NULL)`
`    {`
        `set_data(str);`
        `set_rolling_flag(flag);`
        `set_dispaly_flag(1);`
`    }`

    `sprintf(page,` `(char` `*)index_page,` `"");`

    `reg_httpServer_webContent((uint8_t` `*)"index.html",` `(uint8_t` `*)page);`         `//` `Build` `HTTP` `server` `web` `pages`
    `httpServer_init(http_tx_ethernet_buf,` `http_rx_ethernet_buf,` `1,` `socknumlist);` `//` `Initializing` `the` `HTTP` `server`
    `while` `(1)`
`    {`
        `httpServer_run(SOCKET_ID);`

        `if` `(get_dispaly_flag())`
`        {`
            `oled_display();`

            `set_dispaly_flag(0);`
`        }`
`    }`
`}`
`

5.运行结果

如图为 http 网页,用户可以输入内容，并且可以选择是否滚动显示

如图为提交后的页面

如图为 OLED 显示结果

在 httpUtil.c 中修改 predefined_set_cgi_processor 函数，这个是处理浏览器提交过来的数据的函数，代码如下：

复制代码 
uint8_t` `predefined_set_cgi_processor(uint8_t` `*uri_name,` `uint8_t` `*uri,` `uint8_t` `*buf,` `uint16_t` `*len)`
`{`
    `if` `(strcmp((const` `char` `*)uri_name,` `"config.cgi")` `==` `0)`
`    {`
        `uint8_t` `*param;`

        `param` `=` `get_http_param_value((char` `*)uri,` `"text");`
        `set_data(param);`
        `param` `=` `get_http_param_value((char` `*)uri,` `"is_Rolling");`

        `if` `(!strcmp(param,` `"Rolling"))`
`        {`
            `set_rolling_flag(1);`
`        }`
        `else`
`        {`
            `set_rolling_flag(0);`
`        }`

        `set_dispaly_flag(1);`

        `*len` `=` `sprintf((char` `*)buf,` `(char` `*)CONFIG_SUCCESS_PAGE);`
        `return` `1;`
`    }`
    `return` `0;`
`}`
`

添加 oled.c 函数，用于控制 oled。通过向oled相应寄存器赋值，即可实现oled滚动。代码如下

复制代码 
#include` `"oled.h"`
`#include` `"delay.h"`
`#include` `"flash.h"`
`#include` `"oledfont.h"`
`#include` `"stdint.h"`
`#include` `"string.h"`
`#include` `"w55mh32.h"`

`unsigned` `char` `data[64] =` `"";`
`unsigned` `char` `is_rolling_flag` `=` `0;`
`unsigned` `char` `display_flag` `=` `0;`
`unsigned` `char` `startup_flag` `=` `1;`

`void` `IIC_Start()`
`{`

    `OLED_SCLK_Set();`

    `OLED_SDIN_Set();`

    `OLED_SDIN_Clr();`

    `OLED_SCLK_Clr();`
`}`

`/**********************************************`
`//IIC` `Stop`
`**********************************************/`
`void` `IIC_Stop()`
`{`
    `OLED_SCLK_Set();`

    `//`	`OLED_SCLK_Clr();`
    `OLED_SDIN_Clr();`

    `OLED_SDIN_Set();`
`}`

`void` `IIC_Wait_Ack()`
`{`

    `//` `GPIOB->CRH` `&= 0XFFF0FFFF;`
    `//` `GPIOB->CRH |= 0x00080000;`
    `//`	`OLED_SDA` `=` `1;`
    `//`	`delay_us(1);`
    `//` `OLED_SCL` `=` `1;`
    `//` `delay_us(50000);`
    `/*`	`while(1)`
`        {`
            `if(!OLED_SDA)`
`            {`
                `//GPIOB->CRH` `&= 0XFFF0FFFF;`
                `//GPIOB->CRH |= 0x00030000;`
                `return;`
`            }`
`        }`
    `*/`
    `OLED_SCLK_Set();`

    `OLED_SCLK_Clr();`
`}`
`/**********************************************`
`//` `IIC` `Write` `byte`
`**********************************************/`

`void` `Write_IIC_Byte(unsigned` `char` `IIC_Byte)`
`{`
    `unsigned` `char` `i;`
    `unsigned` `char` `m,` `da;`
    `da` `=` `IIC_Byte;`
    `OLED_SCLK_Clr();`

    `for` `(i` `=` `0;` `i` `<` `8;` `i++)`
`    {`
        `m` `=` `da;`
        `//`	`OLED_SCLK_Clr();`
        `m` `=` `m` `& 0x80;`
        `if` `(m` `== 0x80)`
`        {`
            `OLED_SDIN_Set();`
`        }`
        `else`
            `OLED_SDIN_Clr();`

        `da` `=` `da` `<<` `1;`
        `OLED_SCLK_Set();`

        `OLED_SCLK_Clr();`
`    }`
`}`
`/**********************************************`
`//` `IIC` `Write` `Command`
`**********************************************/`
`void` `Write_IIC_Command(unsigned` `char` `IIC_Command)`
`{`
    `IIC_Start();`
    `Write_IIC_Byte(0x78);` `//` `Slave` `address,SA0=0`
    `IIC_Wait_Ack();`
    `Write_IIC_Byte(0x00);` `//` `write` `command`
    `IIC_Wait_Ack();`
    `Write_IIC_Byte(IIC_Command);`
    `IIC_Wait_Ack();`
    `IIC_Stop();`
`}`
`/**********************************************`
`//` `IIC` `Write` `Data`
`**********************************************/`
`void` `Write_IIC_Data(unsigned` `char` `IIC_Data)`
`{`
    `IIC_Start();`
    `Write_IIC_Byte(0x78);` `//` `D/C#=0;` `R/W#=0`
    `IIC_Wait_Ack();`
    `Write_IIC_Byte(0x40);` `//` `write` `data`
    `IIC_Wait_Ack();`
    `Write_IIC_Byte(IIC_Data);`
    `IIC_Wait_Ack();`
    `IIC_Stop();`
`}`
`void` `OLED_WR_Byte(unsigned` `dat,` `unsigned` `cmd)`
`{`
    `if` `(cmd)`
        `Write_IIC_Data(dat);`
    `else`
        `Write_IIC_Command(dat);`
`}`

`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),` `OLED_CMD);`
`}`

`void` `OLED_Display_On(void)`
`{`
    `OLED_WR_Byte(0X8D,` `OLED_CMD);`

    `OLED_WR_Byte(0X14,` `OLED_CMD);` `//` `DCDC` `ON`

    `OLED_WR_Byte(0XAF,` `OLED_CMD);` `//` `DISPLAY` `ON`
`}`

`void` `OLED_Display_Off(void)`
`{`
    `OLED_WR_Byte(0X8D,` `OLED_CMD);`

    `OLED_WR_Byte(0X10,` `OLED_CMD);` `//` `DCDC` `OFF`

    `OLED_WR_Byte(0XAE,` `OLED_CMD);` `//` `DISPLAY` `OFF`
`}`

`void` `OLED_Clear(void)`
`{`
    `unsigned` `char` `i,` `n;`
    `for` `(i` `=` `0;` `i` `<` `8;` `i++)`
`    {`
        `OLED_WR_Byte(0xb0 +` `i,` `OLED_CMD);`

        `OLED_WR_Byte(0x00,` `OLED_CMD);`

        `OLED_WR_Byte(0x10,` `OLED_CMD);`

        `for` `(n` `=` `0;` `n` `<` `128;` `n++)`
            `OLED_WR_Byte(0,` `OLED_DATA);`
`    }`
`}`
`void` `OLED_On(void)`
`{`
    `unsigned` `char` `i,` `n;`
    `for` `(i` `=` `0;` `i` `<` `8;` `i++)`
`    {`
        `OLED_WR_Byte(0xb0 +` `i,` `OLED_CMD);`
        `OLED_WR_Byte(0x00,` `OLED_CMD);`
        `OLED_WR_Byte(0x10,` `OLED_CMD);`
        `for` `(n` `=` `0;` `n` `<` `128;` `n++)`
            `OLED_WR_Byte(1,` `OLED_DATA);`
`    }`
`}`

`void` `OLED_ShowChar(unsigned` `char` `x,` `unsigned` `char` `y,` `unsigned` `char` `chr,` `unsigned` `char` `Char_Size)`
`{`
    `unsigned` `char` `c` `=` `0,` `i` `=` `0;`
    `c` `=` `chr` `-` `' ';`
    `if` `(x` `>` `Max_Column` `-` `1)`
`    {`
        `x` `=` `0;`
        `y` `=` `y` `+` `2;`
`    }`
    `if` `(Char_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);`
        `for` `(i` `=` `0;` `i` `<` `6;` `i++)`
            `OLED_WR_Byte(F6x8[c][i],` `OLED_DATA);`
`    }`
`}`

`unsigned` `int` `oled_pow(unsigned` `char` `m,` `unsigned` `char` `n)`
`{`
    `unsigned` `int` `result` `=` `1;`
    `while` `(n--)`
        `result` `*=` `m;`
    `return` `result;`
`}`

`void` `OLED_ShowString(unsigned` `char` `x,` `unsigned` `char` `y,` `char` `*chr,` `unsigned` `char` `Char_Size)`
`{`
    `unsigned` `char` `j` `=` `0;`
    `while` `(chr[j] != '\0')`
`    {`
        `OLED_ShowChar(x,` `y,` `chr[j],` `Char_Size);`
        `x` `+=` `8;`
        `if` `(x` `>` `120)`
`        {`
            `x` `=` `0;`
            `y` `+=` `2;`
`        }`
        `j++;`
`    }`
`}`


`void` `OLED_Init(void)`
`{`
    `GPIO_InitTypeDef` `GPIO_InitStructure;`

    `RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,` `ENABLE);`
    `GPIO_InitStructure.GPIO_Pin` `=` `GPIO_Pin_5 | GPIO_Pin_6;`
    `GPIO_InitStructure.GPIO_Mode` `=` `GPIO_Mode_Out_PP;`
    `GPIO_InitStructure.GPIO_Speed` `=` `GPIO_Speed_50MHz;`
    `GPIO_Init(GPIOB,` `&GPIO_InitStructure);`
    `GPIO_SetBits(GPIOB,` `GPIO_Pin_5 | GPIO_Pin_6);`

    `delay_ms(800);`
    `OLED_WR_Byte(0xAE,` `OLED_CMD);`

    `OLED_WR_Byte(0x00,` `OLED_CMD);`
    `OLED_WR_Byte(0x10,` `OLED_CMD);`
    `OLED_WR_Byte(0xB0,` `OLED_CMD);`

    `OLED_WR_Byte(0x40,` `OLED_CMD);`

    `OLED_WR_Byte(0x81,` `OLED_CMD);`
    `OLED_WR_Byte(0xFF,` `OLED_CMD);`

    `OLED_WR_Byte(0xA1,` `OLED_CMD);`

    `OLED_WR_Byte(0xA6,` `OLED_CMD);`

    `OLED_WR_Byte(0xA8,` `OLED_CMD);`
    `OLED_WR_Byte(0x3F,` `OLED_CMD);`

    `OLED_WR_Byte(0xC8,` `OLED_CMD);`

    `OLED_WR_Byte(0xD3,` `OLED_CMD);`
    `OLED_WR_Byte(0x00,` `OLED_CMD);`

    `OLED_WR_Byte(0xD5,` `OLED_CMD);`
    `OLED_WR_Byte(0x80,` `OLED_CMD);`

    `OLED_WR_Byte(0xD9,` `OLED_CMD);`
    `OLED_WR_Byte(0xF1,` `OLED_CMD);`

    `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(0x14,` `OLED_CMD);`

    `OLED_WR_Byte(0xAF,` `OLED_CMD);`

    `OLED_Clear();`
`}`

`void` `set_data(unsigned` `char` `*dat)`
`{`
    `memset(data,` `0,` `sizeof(data));`

    `strcpy(data,` `dat);`
`}`

`void` `set_rolling_flag(unsigned` `char` `flag)`
`{`
    `is_rolling_flag` `=` `flag;`
`}`

`void` `set_dispaly_flag(unsigned` `char` `flag)`
`{`
    `display_flag` `=` `flag;`
`}`

`unsigned` `char` `get_dispaly_flag()`
`{`
    `return` `display_flag;`
`}`

`// 添加滚动控制函数`
`void` `OLED_StartHorizontalScroll(unsigned` `char` `direction,` `unsigned` `char` `start_page,`
                                `unsigned` `char` `end_page,` `unsigned` `char` `interval)`
`{`
    `OLED_WR_Byte(0x2E,` `OLED_CMD);` `// 关闭滚动`

    `// 设置滚动方向`
    `OLED_WR_Byte(direction,` `OLED_CMD);`  `// 0x26=右滚, 0x27=左滚`
    `OLED_WR_Byte(0x00,` `OLED_CMD);`       `// 虚拟字节`
    `OLED_WR_Byte(start_page,` `OLED_CMD);` `// 起始页 (0-7)`
    `OLED_WR_Byte(interval,` `OLED_CMD);`   `// 滚动间隔 (0-7, 数值越大越慢)`
    `OLED_WR_Byte(end_page,` `OLED_CMD);`   `// 终止页 (0-7)`
    `OLED_WR_Byte(0x00,` `OLED_CMD);`       `// 虚拟字节`
    `OLED_WR_Byte(0xFF,` `OLED_CMD);`       `// 虚拟字节`

    `OLED_WR_Byte(0x2F,` `OLED_CMD);` `// 启动滚动`
`}`

`// 停止滚动`
`void` `OLED_StopScroll(void)`
`{`
    `OLED_WR_Byte(0x2E,` `OLED_CMD);`
`}`

`void` `oled_display()`
`{`
    `unsigned` `char` `len` `=` `strlen(data);`
    `unsigned` `char` `*point` `=` `data;`
    `char` `buff[17] = {0};`

    `OLED_StopScroll();`

    `OLED_Clear();`

    `//` `clear` `buff`
    `for` `(unsigned` `char` `i` `=` `0;` `i` `<` `4;` `i++)`
`    {`
        `memset(buff,` `0,` `16);`
        `if` `(len` `>` `16)`
`        {`
            `strncpy(buff,` `(char` `*)point,` `16);`
            `OLED_ShowString(0,` `i` `*` `2,` `buff,` `16);`
            `point` `+=` `16;`
            `len` `-=` `16;`
`        }`
        `else`
`        {`
            `strcpy(buff,` `(char` `*)point);`
            `OLED_ShowString(0,` `i` `*` `2,` `buff,` `16);`
            `break;`
`        }`
`    }`

    `if` `(startup_flag)`
`    {`
        `startup_flag` `=` `0;`
`    }`
    `else`
`    {`
        `Flash_Write(data,` `is_rolling_flag);`
`    }`

    `// 启动滚动 (从第0页到第7页，向左滚动，速度中等)`
    `if` `(is_rolling_flag)`
        `OLED_StartHorizontalScroll(0x27,` `0,` `7,` `7);`
`}`
`

添加 oled.h 头文件，代码如下,可以修改对应的宏定义为自己的引脚

复制代码 
#ifndef __OLED_H`
`#define __OLED_H`
`#include` `"delay.h"`
`#include` `"stdlib.h"`

`#define` `OLED_MODE` `0`
`#define` `SIZE` `8`
`#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`

`#define` `OLED_SCLK_Clr()` `GPIO_ResetBits(GPIOB,` `GPIO_Pin_5)` `//` `SCL`
`#define` `OLED_SCLK_Set()` `GPIO_SetBits(GPIOB,` `GPIO_Pin_5)`

`#define` `OLED_SDIN_Clr()` `GPIO_ResetBits(GPIOB,` `GPIO_Pin_6)` `//` `SDA`
`#define` `OLED_SDIN_Set()` `GPIO_SetBits(GPIOB,` `GPIO_Pin_6)`

`#define` `OLED_CMD` `0`
`#define` `OLED_DATA` `1`

`void` `OLED_WR_Byte(unsigned` `dat,` `unsigned` `cmd);`
`void` `OLED_Display_On(void);`
`void` `OLED_Display_Off(void);`
`void` `OLED_Init(void);`
`void` `OLED_Clear(void);`
`void` `OLED_DrawPoint(unsigned` `char` `x,` `unsigned` `char` `y,` `unsigned` `char` `t);`
`void` `OLED_Fill(unsigned` `char` `x1,` `unsigned` `char` `y1,` `unsigned` `char` `x2,` `unsigned` `char` `y2,` `unsigned` `char` `dot);`
`void` `OLED_ShowChar(unsigned` `char` `x,` `unsigned` `char` `y,` `unsigned` `char` `chr,` `unsigned` `char` `Char_Size);`
`void` `OLED_ShowNum(unsigned` `char` `x,` `unsigned` `char` `y,` `unsigned` `int` `num,` `unsigned` `char` `len,` `unsigned` `char` `size);`
`void` `OLED_ShowString(unsigned` `char` `x,` `unsigned` `char` `y,` `char` `*p,` `unsigned` `char` `Char_Size);`
`void` `OLED_Set_Pos(unsigned` `char` `x,` `unsigned` `char` `y);`
`void` `OLED_ShowCHinese(unsigned` `char` `x,` `unsigned` `char` `y,` `unsigned` `char` `no);`
`void` `OLED_DrawBMP(unsigned` `char` `x0,` `unsigned` `char` `y0,` `unsigned` `char` `x1,` `unsigned` `char` `y1,` `unsigned` `char` `BMP[]);`
`void` `Delay_50ms(unsigned` `int` `Del_50ms);`
`void` `Delay_1ms(unsigned` `int` `Del_1ms);`
`void` `fill_picture(unsigned` `char` `fill_Data);`
`void` `Picture(void);`
`void` `IIC_Start(void);`
`void` `IIC_Stop(void);`
`void` `Write_IIC_Command(unsigned` `char` `IIC_Command);`
`void` `Write_IIC_Data(unsigned` `char` `IIC_Data);`
`void` `Write_IIC_Byte(unsigned` `char` `IIC_Byte);`
`void` `OLED_ShowDecimal(unsigned` `char` `x,` `unsigned` `char` `y,` `float` `num);`

`void` `IIC_Wait_Ack(void);`
`void` `OLED_ShowNumber(unsigned` `char` `x,` `unsigned` `char` `y,` `short` `num);`

`void` `set_data(unsigned` `char` `*dat);`
`void` `set_rolling_flag(unsigned` `char` `flag);`
`void` `set_dispaly_flag(unsigned` `char` `flag);`
`unsigned` `char` `get_dispaly_flag(void);`
`void` `oled_display(void);`
`#endif`
`

添加 flash.c 文件，用于保存显示内容到 flash，这样即使电源断开后，再次通电也能显示之前保存的显示内容。代码如下

复制代码 
#include` `"Flash.h"`
`#include` `"w55mh32_flash.h"`

`unsigned` `char` `Flash_Write(char` `*data1,` `unsigned` `char` `data2)`
`{`
    `unsigned` `char` `status` `=` `0;`
    `unsigned` `int` `address` `=` `startAddress;`

    `unsigned` `int` `rolling` `=` `data2;`
    `char` `str[100] =` `"";`
    `strcpy(str,` `data1);`

    `FLASH_Unlock();`

    `status` `=` `FLASH_ErasePage(startAddress);`

    `if` `(FLASH_COMPLETE !=` `status)`
        `return` `status;`

    `status` `=` `FLASH_ProgramWord(address,` `rolling);`
    `address` `+=` `4;`

    `if` `(FLASH_COMPLETE !=` `status)`
        `return` `status;`

    `unsigned` `char` `i;`
    `for` `(i` `=` `0;` `i` `<` `strlen(str)` `&&` `(status` `==` `FLASH_COMPLETE);` `i++)`
`    {`
        `status` `=` `FLASH_ProgramWord(address,` `str[i]);`
        `address` `+=` `4;`
`    }`

    `FLASH_ProgramWord(address, '\0');`

    `FLASH_Lock();`

    `return` `0;`
`}`

`void` `Flash_Read(char` `*str,` `unsigned` `char` `*rolling)`
`{`
    `unsigned` `int` `address` `=` `startAddress;`
    `char` `temp` `=` `' ';`

    `*rolling` `=` `(unsigned` `char)*(__IO uint32_t` `*)address;`

    `address` `+=` `4;`

    `for` `(unsigned` `char` `i` `=` `0;` `i` `<` `64;` `i++)`
`    {`
        `temp` `=` `(char)*(__IO uint32_t` `*)address;`
        `if` `(temp` `==` `0)`
`        {`
            `str[i] = '\0';`
            `return;`
`        }`

        `str[i] =` `temp;`
        `address` `+=` `4;`
`    }`
`}`

`

添加 flash.h 头文件，代码如下

复制代码 
#ifndef _FLASH_H`
`#define _FLASH_H`

`#include` `"string.h"`

`#define` `startAddress` `((uint32_t)0x08020000)`

`unsigned` `char` `Flash_Write(char` `*data1,` `unsigned` `char` `data2);`
`void` `Flash_Read(char` `*str,` `unsigned` `char` `*rolling);`

`#endif`
`

修改主函数 main.c，代码如下：

复制代码 
#include` `"bsp_rcc.h"`
`#include` `"bsp_tim.h"`
`#include` `"bsp_uart.h"`
`#include` `"delay.h"`
`#include` `"flash.h"`
`#include` `"httpServer.h"`
`#include` `"oled.h"`
`#include` `"webpage.h"`
`#include` `"wiz_interface.h"`
`#include` `"wizchip_conf.h"`
`#include` `<stdio.h>`
`#include` `<stdlib.h>`
`#include` `<string.h>`

`#define` `SOCKET_ID` `0`
`#define` `ETHERNET_BUF_MAX_SIZE` `(1024` `*` `2)`

`/*` `network` `information` `*/`
`wiz_NetInfo` `default_net_info` `= {`
    `.mac` `= {0x00, 0x10, 0xdc, 0x12, 0x22, 0x12},`
    `.ip` `= {192,` `168,` `1,` `30},`
    `.gw` `= {192,` `168,` `1,` `1},`
    `.sn` `= {255,` `255,` `255,` `0},`
    `.dns` `= {8,` `8,` `8,` `8},`
    `.dhcp` `=` `NETINFO_DHCP};`

`static` `uint8_t` `ethernet_buf[ETHERNET_BUF_MAX_SIZE] = {0};`
`static` `uint8_t` `http_tx_ethernet_buf[ETHERNET_BUF_MAX_SIZE] = {0};`
`static` `uint8_t` `http_rx_ethernet_buf[ETHERNET_BUF_MAX_SIZE] = {0};`
`static` `uint8_t` `socknumlist[1] = {SOCKET_ID};`
`int` `main(void)`
`{`
    `char` `page[2048];`
    `char` `str[64] =` `"asdasdasd";`
    `unsigned` `char` `flag` `=` `0;`

    `wiz_NetInfo` `net_info;`
    `/*` `hardware` `initialization` `*/`
    `rcc_clk_config();`
    `delay_init();`
    `console_usart_init(115200);`

    `tim3_init();`

    `OLED_Init();`

    `printf("%s HTTP Server example\r\n", _WIZCHIP_ID_);`

    `/*` `wiztoe` `init` `*/`
    `wiz_toe_init();`

    `wiz_phy_link_check();`

    `network_init(ethernet_buf,` `&default_net_info);`

    `wizchip_getnetinfo(&net_info);`
    `printf("Please enter% d.% d.% d.% d in your browser to access the %s HTTP server\r\n",` `net_info.ip[0],` `net_info.ip[1],` `net_info.ip[2],` `net_info.ip[3], _WIZCHIP_ID_);`

    `// 查询flash`
    `Flash_Read(str,` `&flag);`
    `if` `(str !=` `NULL)`
`    {`
        `set_data(str);`
        `set_rolling_flag(flag);`
        `set_dispaly_flag(1);`
`    }`

    `sprintf(page,` `(char` `*)index_page,` `"");`

    `reg_httpServer_webContent((uint8_t` `*)"index.html",` `(uint8_t` `*)page);`         `//` `Build` `HTTP` `server` `web` `pages`
    `httpServer_init(http_tx_ethernet_buf,` `http_rx_ethernet_buf,` `1,` `socknumlist);` `//` `Initializing` `the` `HTTP` `server`
    `while` `(1)`
`    {`
        `httpServer_run(SOCKET_ID);`

        `if` `(get_dispaly_flag())`
`        {`
            `oled_display();`

            `set_dispaly_flag(0);`
`        }`
`    }`
`}`
`

5.运行结果

如图为 http 网页,用户可以输入内容，并且可以选择是否滚动显示

如图为提交后的页面

如图为 OLED 显示结果

6.总结

本文详细介绍了如何利用 W55MH32Q-EVB 的 HTTP 功能，通过使用 http 服务器来获取 oled 显示内容，然后将内容显示在 oled 上。感谢大家的耐心阅读！如果您在阅读过程中有任何疑问，或者希望进一步了解这款产品及其应用，欢迎随时通过私信或评论区留言。我们会尽快回复您的消息，为您提供更详细的解答和帮助！

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