IPC@CHIP Documentation - SC12 @CHIP-RTOS V1.10

3. dk40cgi.exe
The CGI function of this program produces a HTML page which contains the current values of the DK40
I/O pins.
Example browser input:
http://192.168.205.4/dk40
4. dk40_set.exe
Demonstrates set and reset control over the DK40 output pins via browser.
Example browser input:
http://192.168.205.4/dk40
5. secure.exe
This is an example of a protected page.
The first browser input ...
http://192.168.205.4/dk40_secure
requires the input of a valid user name and password, e.g.:
User name: user
Password: password
6. submit.exe
The building of formulars is demonstrated here.
7. submit2.exe
The building of formulars with more than one item is demonstrated here.
Important:
1. The recommended memory model for DOS programs is "Large".
2. CGI functions should be programmed as short as possible, without long or endless waits.
3. CGI functions compiled with Borland C must be declared as "huge".
4. CGI functions compiled with Microsoft C must be declared as " far _saveregs _loadds".
5. Users of Microsoft Visual C must set the compiler option "struct member byte alignment" to "1 byte" or
must use "#pragma pack(1)" in their source.
6. The command cgistat at the IPC@CHIP command prompt lists all CGI functions installed.
7. URL names for CGI functions are case-sensitive.
8. If you use Microsoft C-Compilers then increase the Web server's WEBSERVERSTACK stack size value
in the chip.ini file. The default stack size of the Web server task is 2048 Bytes. Programmers of
CGI functions who are using Microsoft C-Compilers with C-Library functions, e.g. sprintf, which
requires a lot of stack space should increase this allocation to 6144 (6 Kbytes). More stack space for the
Web server task is also required if your CGI function uses a large amount of stack for automatic data
(local variables) declared inside the CGI function call.
Building Turbo Pascal CGI procedures
Since @CHIP-RTOS version 0.65, it is possible to write CGI procedures with Turbo Pascal
This is a little bit different from writing a CGI function with the C compilers.
A Turbo Pascal program which contain a CGI procedure uses the same data structures (records)
as a C language CGI function.
Declaration of Turbo Pascal CGI procedures
A CGI procedure written with Turbo Pascal must be declared without any parameters and with the interrupt
declaration, e.g.:
procedure CgiMini_Proc;interrupt;
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