deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Broke out the CC2420 SFD interrupt into a separate file to allow easier overloading with project-specific files

Browse source
This commit is contained in:
adamdunkels 2009-12-05 19:42:56 +00:00
parent 4a1a823a49
commit e3fed27f4a
4 changed files with 115 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

36
cpu/msp430/cc2420-arch.c
View file

@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)$Id: cc2420-arch.c,v 1.4 2009/04/02 22:39:29 joxe Exp $
* @(#)$Id: cc2420-arch.c,v 1.5 2009/12/05 19:42:56 adamdunkels Exp $
*/
#include <io.h>
@ -39,8 +39,7 @@
#include "dev/cc2420.h"
#ifdef CONF_SFD_TIMESTAMPS
uint16_t sfd_start_time;
uint16_t sfd_end_time;
#include "cc2420-arch-sfd.h"
#endif
/*---------------------------------------------------------------------------*/
@ -54,24 +53,6 @@ cc24240_port1_interrupt(void)
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}
#ifdef CONF_SFD_TIMESTAMPS
/*---------------------------------------------------------------------------*/
/* SFD interrupt for timestamping radio packets */
interrupt(TIMERB1_VECTOR)
cc24240_timerb1_interrupt(void)
{
int tbiv;
ENERGEST_ON(ENERGEST_TYPE_IRQ);
/* always read TBIV to clear IFG */
tbiv = TBIV;
if(SFD_IS_1) {
sfd_start_time = TBCCR1;
} else {
sfd_end_time = TBCCR1;
}
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}
#endif
/*---------------------------------------------------------------------------*/
void
cc2420_arch_init(void)
@ -82,18 +63,7 @@ cc2420_arch_init(void)
P4DIR |= BV(CSN) | BV(VREG_EN) | BV(RESET_N);
#ifdef CONF_SFD_TIMESTAMPS
/* Need to select the special function! */
P4SEL = BV(SFD);
/* start timer B - 32768 ticks per second */
TBCTL = TBSSEL_1 | TBCLR;
/* CM_3 = capture mode - capture on both edges */
TBCCTL1 = CM_3 | CAP | SCS;
TBCCTL1 |= CCIE;
/* Start Timer_B in continuous mode. */
TBCTL |= MC1;
cc2420_arch_sfd_init();
#endif
SPI_DISABLE(); /* Unselect radio. */