The embedded libraries contain standard C functions for Input/Output (I/O), such
as printf and scanf. These functions are
large and might not be suitable for embedded processors. The
prototypes for these functions are available in the stdio.h file.
These I/O routines require that a newline is terminated with both a CR and LF. Ensure that your terminal CR/LF behavior corresponds to this requirement.
printf, scanf,
vfprintf are, by default, line
buffered. To change the buffering scheme to no buffering, you
must call setvbuf appropriately. For example:
setvbuf (stdout, NULL, _IONBF, 0);These I/O routines require that a newline is terminated with both a CR and LF. Ensure that your terminal CR/LF behavior corresponds to this requirement.
For more information on setting the standard input and standard output devices for a system, see Embedded System Tools Reference Manual (UG1043). In addition to the standard C functions, the Vitis IDE processors library provides the following smaller I/O functions:
| Type | Name | Arguments |
|---|---|---|
| void |
|
|
| void | putnum |
|
| void | xil_printf |
|