Zilog ZUSBOPTS Bedienungsanleitung PDF herunterladen (Seite 209)

100

101

UM017105-0511 Run-Time Library

Zilog Developer Studio II – ZNEO™

User Manual

181

Example

#include <zneo.h>

void main(void)

{

DI();/* Disable interrupts */

}

EI is an intrinsic function that enables all interrupts and is inline-expanded by default. If

the

–reduceopt compiler option is selected, then this function is not inline-expanded and

is instead implemented as a regular function.

Synopsis

#include <zneo.h>

intrinsic void EI(void);

Example

#include <zneo.h>

void main(void)

{

EI(); /* Enable interrupts */

}

getch

getch is a ZILOG function that waits for the next character to appear at the serial port and

returns its value. This function does not wait for end-of-line to return as

getchar does.

getch does not echo the character received.

Synopsis

#include <sio.h>

char getch(void) ;

Returns

The next character that is received at the selected UART.

Example

char ch;

ch=getch();

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