Atmel AVR2070 Manual de usuario descargar pdf (Pagina 45)

A Anhang

A.1 Listings

1 /* * * ** * *** *** *** *** *** *** * ** * ** * *** *** *

2 copyright ( c) 2007 Axel Wachtler

3 modified by Mirco Kern , FH Duess e ldorf

4 * ** * ** * *** *** *** *** *** *** *** *** * ** * ** * */

6 /* exampl e : receiving frames */

7 /* ** *** **** *** * *** *** * *** *** * */

9 /* includ e header files */

10 # inclu de " board .h"

11 # inclu de " tra n sceiver .h "

12 # inclu de " ioutil . h"

13 # inclu de < util / crc16 .h >

14 # inclu de " xmpl .h"

17 /* variable storing received frame */

18 static uint8_t rxfrm [ MAX _ FRAME _ SIZE ];

20 int main ( void )

21 {

22 /* initialize leds ( red switched on ) */

23 LED_INIT ();

25 /* initialize the trans c eiver */

26 DELAY_US ( TR X_INI T _TIM E _US );

27 TRX _ RESET_ L OW ();

28 TRX _ SLPTR_ L OW ();

29 DELAY_US ( TR X_RE S ET_T I ME_U S );

30 TRX _ RESET _ HIGH ();

31 trx _ reg_wr i te ( RG_TRX_STATE , CMD_TRX _ OFF );

32 DELAY_US ( TR X_INI T _TIM E _US );

34 /* setup transmi t ter

35 * - c o n f i gure radio c hannel

36 * - go into rx state ,

37 * - enable " receive end " irq

38 */

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Atmel AVR2070 Manual de usuario Pagina 45