COMFILE Technology's Documentation Library

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====== Debug Terminal ======

The Debug Terminal is an essential tool for displaying information on a program while it is executing. The following functions can be used to customize the way information is displayed in the Debug Terminal.

==== debugCls ====
''void debugCls()''

Clears all text in the debug terminal.

==== debugLocate ====
''void debugLocate(x, y)''
|x: The cursor's x coordinate|
|y: The cursor's y coordinate|

Moves the cursor to the position that is x characters from the left of the Debug Terminal, and y characters from the top of the Debug Terminal. This will be the point at which the next character will be printed.

==== debugPut ====
''void debugPut(ch)''
|ch: The ASCII code of the character, or the character to be printed to the Debug Terminal|

Prints a single ASCII character to the Debug Terminal. Both debugPut('a') and debugPut(97) print the
character "a". 97 is the ASCII code for the character "a" in decimal.

==== printf ====
''u32 printf(char *formatString[, arg0, ..., argn])''
|formatString: A character string to be printed that can optionally contain format specifiers|
|arg0,...,argn: An optional set of arguments to be used by format specifiers.|
|returns The number of characters printed.|

Prints a string to the Debug Terminal. The string may optionally contain format specifiers that are
substituted by the additional arguments (arg0,…, argn).

{{ :moacon:prinf_usage.png?nolink |}}

The MOACON supports the following format specifiers:

^Specifier ^Description ^Prints^
|%d |Signed decimal integer |100 -10|
|%u |Unsigned decimal integer |100 12|
|%x |Unsigned lower case hexadecimal integer |Ab 12ab|
|%X |Unsigned upper case hexadecimal integer |AB 12AB|
|%c |A character |a|
|%f |A decimal floating point number |0.123534|
|%s |A string of characters |Comfile Technology|
|%e |Scientific notation |7.3458485e+07|
|%% |Escape '%' character |%|

Examples:

<code c>
int x=345;
float y=34.564;
printf("%10d\r\n",x);     // prints " 345"
printf("%-10d\r\n",x);    // prints "345 "
printf("%010d\r\n",x);    // prints "0000000345"
printf("%.2f\r\n",y);     // prints 34.57
</code>

printf is an extremely common output statement in the C programming language, and readers are
encouraged to obtain additional C programming resources to learn more about this function.

[[moacon:index|MOACON - Modular Programmable Automation Controller (PAC)]]