SPMA080 April   2021 TM4C1292NCPDT , TM4C1292NCPDT , TM4C1292NCZAD , TM4C1292NCZAD , TM4C1294KCPDT , TM4C1294KCPDT , TM4C1294NCPDT , TM4C1294NCPDT , TM4C1294NCZAD , TM4C1294NCZAD , TM4C1299KCZAD , TM4C1299KCZAD , TM4C1299NCZAD , TM4C1299NCZAD , TM4C129DNCPDT , TM4C129DNCPDT , TM4C129DNCZAD , TM4C129DNCZAD , TM4C129EKCPDT , TM4C129EKCPDT , TM4C129ENCPDT , TM4C129ENCPDT , TM4C129ENCZAD , TM4C129ENCZAD , TM4C129LNCZAD , TM4C129LNCZAD , TM4C129XKCZAD , TM4C129XKCZAD , TM4C129XNCZAD , TM4C129XNCZAD

 

  1.   Trademarks
  2. 1 Introduction
    1. 1.1 TI-RTOS Download
    2. 1.2 License
    3. 1.3 XDCtools
    4. 1.4 Versions
    5. 1.5 Configuring NDK Modules
    6. 1.6 Socket-Based API
      1. 1.6.1 BSD Style Socket APIs
  3. 2 Application Examples
  4. 3 Application Setup
    1. 3.1 Hardware Setup
    2. 3.2 Software Tools
  5. 4 Download and Import the Ethernet Examples
  6. 5 How to Create an Ethernet Application for TI-RTOS NDK
  7. 6 Enet_tcpecho_server_tirtos Example Overview
    1. 6.1 Build and Flash the Program
    2. 6.2 Check and Program the MAC Address
      1. 6.2.1 Using The LM Flash Programmer
      2. 6.2.2 Using CCS
      3. 6.2.3 Using UniFlash
    3. 6.3 Run the enet_tcpecho_server_tirtos Example
  8. 7 Enet_udpecho_server_tirtos Example Overview
    1. 7.1 Run the enet_udpecho_server_tirtos Example
  9. 8 Enet_httpServer_tirtos Example Overview
    1. 8.1 Configure NDK for HTTP Application
    2. 8.2 Embedded File System (EFS) Operation
    3. 8.3 Adding HTTP Server Content
    4. 8.4 Declaring HTML Files to EFS
    5. 8.5 Writing CGI Functions
    6. 8.6 Run the enet_httpServer_tirtos Example
  10. 9 Enet_dns_tirtos Example Overview
    1. 9.1 How to Configure NDK for DNS
    2. 9.2 How to View the DNS Traffic on Wireshark
    3. 9.3 Run the enet_dns_tirtos Example
  11. 10Enet_sntp_tirtos Example Overview
    1. 10.1 Run the enet_dns_tirtos Example
  12. 11Enet_tcpecho_client_tirtos Example Overview
    1. 11.1 Configure the Server IP Address
    2. 11.2 Configure the SocketTest Server
    3. 11.3 Run the enet_tcpecho_client_tirtos Example
  13. 12Enet_udpecho_client_tirtos Example Overview
    1. 12.1 Run the enet_udpecho_client_tirtos Example
  14. 13Enet_httpget_tirtos Example Overview
    1. 13.1 How to Configure NDK for HTTP GET Example
    2. 13.2 Run the enet_httpget_tirtos Example
  15. 14References

8.4 Declaring HTML Files to EFS

Once the HTML file is converted to a memory image, the file is declared to the EFS file system by calling the function efs_createfile(). All the HTML files are typically created at the same time, during initialization, before the HTTP server is actually invoked. In the enet_httpServer_tirtos example code, there are two functions used, AddWebFiles() and RemoveWebFiles(). These functions include all the code necessary to initialize and clean up the EFS file environment.

Below is the snippet of example code to declare HTML files to EFS.

/* file system header file */
#include "fs/index.h"
#include "fs/about.h"
#include "fs/overview.h"
Snip…

Int getTime(SOCKET s, int length)
{
    Char buf[200];
    static UInt scalar = 0;
Snip…

Void AddWebFiles(Void)
{
    efs_createfile("index.html", INDEX_SIZE, (UINT8 *)INDEX);
    efs_createfile("overview.htm", OVERVIEW_SIZE, (UINT8 *)OVERVIEW);
    efs_createfile("about.htm", ABOUT_SIZE, (UINT8 *)ABOUT);
Snip…
    efs_createfile("getTime.cgi", 0, (UINT8 *)&getTime);
Snip…


Void RemoveWebFiles(Void)
{
    efs_destroyfile("index.html");
    efs_destroyfile("overview.htm");
    efs_destroyfile("about.htm");
Snip…
    efs_destroyfile("getTime.cgi");
Snip…

Figure 8-6 shows where the two hook functions AddWebFiles() and RemoveWebFiles() are declared in the NDK configuration.

GUID-20210329-CA0I-HNTL-HM1P-B55WB9RBDKPL-low.jpg Figure 8-6 HTTP Hooks Declaration

Once the above code is run, the EFS system is ready for the HTTP server to serve up the content.