CCS C Compiler Manual PCB / PCM / PCH

Built-in Functions
Example
Files:
Also See:
ex_admm.c
read_adc(), setup_adc(), setup_adc_ports(), ADC Overview
scanf( )
printf( )
Syntax:
scanf(cstring);
scanf(cstring, values...)
fscanf(stream, cstring, values...)
Parameters: cstring is a constant string.
values is a list of variables separated by commas.
stream is a stream identifier.
Returns:
Function:
0 if a failure occurred, otherwise it returns the number of conversion specifiers
that were read in, plus the number of constant strings read in.
Reads in a string of characters from the standard RS-232 pins and formats the
string according to the format specifiers. The format specifier character (%)
used within the string indicates that a conversion specification is to be done and
the value is to be saved into the corresponding argument variable. A %% will
input a single %. Formatting rules for the format specifier as follows:
If fscanf() is used, then the specified stream is used, where scanf() defaults to
STDIN (the last USE RS232).
Format:
The format takes the generic form %nt. n is an option and may be 1-99
specifying the field width, the number of characters to be inputted. t is the type
and maybe one of the following:
c
s
Matches a sequence of characters of the number specified by the
field width (1 if no field width is specified). The corresponding
argument shall be a pointer to the initial character of an array long
enough to accept the sequence.
Matches a sequence of non-white space characters. The
corresponding argument shall be a pointer to the initial character
of an array long enough to accept the sequence and a
terminating null character, which will be added automatically.
265