【程序】Marvell 88W8686 WiFi模块（WM-G-MR-09）创建或连接热点，并使用lwip2.0.3建立http服务器（20180706版）

其他 2018-07-10 14:13:21 阅读次数: 0

本程序所用的单片机型号为：STM32F103RE
PB12端口为外接的WiFi模块电源开关，当PB12输出低电平时接通电源。WiFi模块的电源引脚VCC不可直接连接到电源上，必须要串联一组PNP三极管（或场效应管），并把基极接到PB12端口上，基极要接限流电阻。
注意：WM-G-MR-09模块的芯片组（Chip Set）就是Marvell 88W8686。

Keil5工程下载地址：https://pan.baidu.com/s/1oRABiuKBG9m7P8E0fhc8NA
代码说明：http://blog.csdn.net/ZLK1214/article/details/79278871
Windows下根据计算机名获取IP地址的C语言程序：http://blog.csdn.net/ZLK1214/article/details/79595245
STM32F103RE单片机利用外部中断和DMA获取OV2640摄像头拍摄的照片，并通过串口发送到电脑上的程序：https://blog.csdn.net/zlk1214/article/details/79559466
lwip2.0.3协议栈的无操作系统移植过程：https://blog.csdn.net/ZLK1214/article/details/80957863

此版本修复了上一个版本（20180312版）存在的一些问题，主要更新如下：
1. 添加了扫描热点时显示路由器速率的功能
2. 添加了显示收到的数据帧的信噪比（SNR）、噪声基底（Noise Floor）、优先级和速率的功能（WIFI_DISPLAY_PACKET_RXRATES选项）
3. 解决了WPA/WPA2认证时多次收到第三次握手包导致多次调用WiFi_AuthenticationCompleteHandler回调函数的问题
4. 将数据帧最大发送速率改为了54Mbps, 更新了WIFI_DEFAULT_TIMEOUT_CMDACK和WIFI_DEFAULT_TIMEOUT_DATAACK的值
5. 修复了DHCP长时间获取不到IP地址的问题
6. 添加了TCP、UDP速度测试功能
7. 修复了部分路由器上Group key handshake失败导致掉线的问题（但仍有部分路由器还有此问题）
8. 增大了WiFi模块复位的时间, 避免在WiFi_ShowCIS函数中陷入死循环
10. 增加了wifi_buffer_rx缓冲溢出检查功能，溢出时自动丢弃待接收数据，不影响后续数据的接收
11. 修复了sys_now()溢出导致超时重传判断失效的问题
修改的文件：ethernetif.c, WiFi.c, WiFi.h, common.c, common.h, main.c, WiFi_LowLevel.c

【勘误】
2018年7月8日：common.c中有一个宏RTC_USELSI。请确保单片机使用的RTC时钟源和该宏定义匹配，否则程序运行时会出问题。可以用下面的代码进行检测，时钟源不匹配时自动复位RTC。该代码应该放在rtc_init函数中PWR_BackupAccessCmd的下一排。

if (RCC->BDCR & RCC_BDCR_RTCEN)
{
#ifdef RTC_USELSI
  if ((RCC->BDCR & RCC_BDCR_RTCSEL) != RCC_RTCCLKSource_LSI)
#else
  if ((RCC->BDCR & RCC_BDCR_RTCSEL) != RCC_RTCCLKSource_LSE)
#endif
  {
    printf("RTC is already running and the clock source doesn't match RTC_USELSI!\n");
    printf("Reset RTC!\n");
    RCC_BackupResetCmd(ENABLE);
    RCC_BackupResetCmd(DISABLE);
  }
}

2018年7月10日：WiFi.c中，WiFi_KeyMaterial函数里面for循环内给key[i].header.length赋值的那句话，key->key_len应该改为key[i].key_len才对。

key[i].header.length = sizeof(MrvlIETypes_KeyParamSet_t) - sizeof(key[i].header) - sizeof(key[i].key) + key[i].key_len;

Wi-Fi模块电源引脚的连接方法：


程序支持连接无密码的热点以及WEP、WPA-PSK和WPA2-PSK认证类型的热点，加密方式支持TKIP和AES。
支持创建无密码或是带有WEP密码的ADHOC热点，ADHOC模式下不支持WPA和WPA2！

注意：虽然SDIO标准规定可以总线上可以接多张SD卡，但STM32单片机的SDIO接口只支持接一张卡，STM32F103芯片手册Datasheet（不是参考手册）中有声明：
The current version supports only one SD/SDIO/MMC4.2 card at any one time and a stack of MMC4.1 or previous.
如果想要同时使用WiFi模块和SD内存卡，建议SD内存卡采用SPI总线通信。

【程序运行截图】

连上路由器后DHCP分配得到IP地址：

下面是把WiFi模块固件写入单片机芯片Flash固定区域的程序（用于减少调试主程序时下载程序的时间）的运行结果：

’

电脑上ping IP地址和计算机名：

通过计算机名在电脑上访问开发板上的HTTP服务器（lwip自带的httpd）：

TCP/UDP测速结果（测速软件位于压缩包内，附C语言源代码）：

【程序运行结果（连接WPA2路由器）】

STM32F103RE SDIO 88W8686
RESPCMD63, RESP1_90ff8000
RESPCMD63, RESP1_90300000
Number of I/O Functions: 1
Memory Present: 0
Relative Card Address: 0x0001
Card selected! RESP1_00001e00
SDIO Clock: 24MHz
[CIS] func=0, ptr=0x00008000
Product Information: Marvell 802.11 SDIO ID: 0B
Manufacturer Code: 0x02df
Manufacturer Information: 0x9103
Card Function Code: 0x0c
System Initialization Bit Mask: 0x00
Maximum Block Size: 256
Maximum Transfer Rate Code: 0x32
[CIS] func=1, ptr=0x00008080
Card Function Code: 0x0c
System Initialization Bit Mask: 0x00
Maximum Block Size: 256
Firmware is successfully downloaded!
MAC Addr: 00:1A:6B:A4:AA:B4
SSID '10507', MAC B0:95:8E:04:2A:06, RSSI 51, Channel 6
  Capability: 0x0431 (Security: WPA2, Mode: Infrastructure)
  Rates: 1.0Mbps 2.0Mbps 5.5Mbps 11.0Mbps 6.0Mbps 9.0Mbps 12.0Mbps 18.0Mbps
SSID 'TP_LINK_PLC', MAC 30:FC:68:38:6E:2C, RSSI 71, Channel 6
  Capability: 0x0031 (Security: WPA2, Mode: Infrastructure)
  Rates: 1.0Mbps 2.0Mbps 5.5Mbps 11.0Mbps 6.0Mbps 9.0Mbps 12.0Mbps 18.0Mbps
SSID 'CDU', MAC D4:61:FE:71:36:D0, RSSI 78, Channel 6
  Capability: 0x8421 (Security: Unsecured, Mode: Infrastructure)
  Rates: 1.0Mbps 2.0Mbps 5.5Mbps 6.0Mbps 9.0Mbps 11.0Mbps 12.0Mbps 18.0Mbps
SSID 'xgxy666', MAC DC:FE:18:67:76:14, RSSI 77, Channel 6
  Capability: 0x0031 (Security: WPA2, Mode: Infrastructure)
  Rates: 1.0Mbps 2.0Mbps 5.5Mbps 11.0Mbps 6.0Mbps 9.0Mbps 12.0Mbps 18.0Mbps
SSID 'DWYHX', MAC 48:7D:2E:19:88:9D, RSSI 76, Channel 6
  Capability: 0x0031 (Security: WPA2, Mode: Infrastructure)
  Rates: 1.0Mbps 2.0Mbps 5.5Mbps 11.0Mbps 6.0Mbps 9.0Mbps 12.0Mbps 18.0Mbps
SSID 'TP-LINK_ORANGE', MAC B0:95:8E:05:82:CA, RSSI 58, Channel 11
  Capability: 0x0431 (Security: WPA2, Mode: Infrastructure)
  Rates: 1.0Mbps 2.0Mbps 5.5Mbps 11.0Mbps 6.0Mbps 9.0Mbps 12.0Mbps 18.0Mbps
SSID '', MAC D6:14:4B:6F:A6:0F, RSSI 68, Channel 11
  Capability: 0x0621 (Security: Unsecured, Mode: Infrastructure)
  Rates: 1.0Mbps 2.0Mbps 5.5Mbps 11.0Mbps 18.0Mbps 24.0Mbps 36.0Mbps 54.0Mbps
SSID 'CMCC-EDU', MAC D6:14:4B:6F:A6:0E, RSSI 68, Channel 11
  Capability: 0x0621 (Security: Unsecured, Mode: Infrastructure)
  Rates: 1.0Mbps 2.0Mbps 5.5Mbps 11.0Mbps 18.0Mbps 24.0Mbps 36.0Mbps 54.0Mbps
SSID 'TP-LINK_5B8E', MAC 50:FA:84:53:5B:8E, RSSI 75, Channel 12
  Capability: 0x0401 (Security: Unsecured, Mode: Infrastructure)
  Rates: 1.0Mbps 2.0Mbps 5.5Mbps 11.0Mbps 9.0Mbps 18.0Mbps 36.0Mbps 54.0Mbps
Scan finished!
Waiting for authentication!
Message 1 received!
Message 2 sent!
Message 3 received!
Message 4 sent!
Authenticated!
[Send] len=350
PTK & GTK set!
[Recv] len=316
[Send] len=350
[Recv] len=316
[Send] len=42
[Send] len=42
[Send] len=42
DHCP supplied address!
IP address: 192.168.1.115
Subnet mask: 255.255.255.0
Default gateway: 192.168.1.1
DNS Server: 192.168.1.1
[Send] len=42
Not in cache! err=-5
[Recv] len=42
[Send] len=76
[Recv] len=235
DNS Found IP: 106.186.126.193
Connecting to 106.186.126.193...
[Send] len=58
[Send] len=42
[Recv] len=58
Connected! err=0
Connection is successfully closed!
[Send] len=54
[Recv] len=54
[Send] len=54
[Send] len=42
[Send] len=42
[Send] len=42
[Recv] len=159
[Recv] len=92
[Send] len=42
[Send] len=42
[Recv] len=42
[Send] len=104
[Recv] len=42
[Recv] len=42
[Send] len=42
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=54
[Recv] len=355
[Send] len=590
[Send] len=349
[Recv] len=54
[Send] len=54
[Recv] len=54
[Recv] len=54
[Recv] len=54
[Send] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=54
[Recv] len=54
[Recv] len=54
[Send] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=355
[Send] len=590
[Send] len=349
[Recv] len=54
[Recv] len=54
[Recv] len=54
[Send] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Recv] len=54
[Send] len=590
[Recv] len=355
[Send] len=590
[Send] len=349
[Recv] len=54
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=54
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=355
[Send] len=590
[Send] len=349
[Recv] len=54
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=355
[Send] len=590
[Send] len=349
[Recv] len=54
[Recv] len=54
[Recv] len=54
[Send] len=54
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=66
[Send] len=58
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=54
[Recv] len=355
[Send] len=590
[Send] len=349
[Recv] len=54
[Recv] len=54
[Recv] len=54
[Recv] len=54
[Send] len=54
[Recv] len=54
[Send] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=355
[Send] len=590
[Send] len=349
[Recv] len=54
[Recv] len=54
[Recv] len=54
[Send] len=54
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=66
[Send] len=58
[Recv] len=54
[Send] len=304
[Recv] len=54
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=54
[Send] len=304
[Recv] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Recv] len=54
[Send] len=54
[Recv] len=54
[Recv] len=300
[Send] len=590
[Send] len=590
[Recv] len=54
[Send] len=590
[Recv] len=66
[Send] len=58
[Recv] len=54
[Send] len=304
[Recv] len=54
[Recv] len=54
[Recv] len=355
[Send] len=590
[Send] len=349
[Recv] len=54
[Recv] len=54
[Send] len=54
[Recv] len=54
[Recv] len=54
[Recv] len=54
[Send] len=54
[Recv] len=66
[Send] len=58
[Recv] len=54
[Send] len=54
[Recv] len=54

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