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

Corrected timing for higher CPU speed

Browse source
This commit is contained in:
Niclas Finne 2011-09-21 21:09:19 +02:00
parent 6c5379606b
commit 708f9d77d2
2 changed files with 35 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

35
cpu/msp430/msp430.c
View file

@ -31,9 +31,11 @@
#include "contiki.h"
#include "dev/watchdog.h"
#if DCOSYNCH_CONF_ENABLED
/* dco_required set to 1 will cause the CPU not to go into
sleep modes where the DCO clock stopped */
int msp430_dco_required;
#endif /* DCOSYNCH_CONF_ENABLED */
/*---------------------------------------------------------------------------*/
#if defined(__MSP430__) && defined(__GNUC__) && MSP430_MEMCPY_WORKAROUND
@ -66,7 +68,17 @@ w_memset(void *out, int value, size_t n)
void
msp430_init_dco(void)
{
#if CONTIKI_TARGET_WISMOTE
#if CONTIKI_TARGET_WISMOTE && defined(__IAR_SYSTEMS_ICC__)
/* set to 8 MHz 244 * 32768 ? */
/* set to 8 MHz 244 * 32768 (or 0x107a)? */
__bis_SR_register(SCG0);
UCSCTL0 = 0x0000;
UCSCTL1 = DCORSEL_4;
UCSCTL2 = 244 * 2; //0x107a;
UCSCTL4 = 0x33; /* instead of 0x44 that is DCO/2 */
__bic_SR_register(SCG0);
#elif CONTIKI_TARGET_WISMOTE
// Stop watchdog
WDTCTL = WDTPW + WDTHOLD;
@ -213,17 +225,21 @@ static char *cur_break = (char *)&_end;
void
msp430_add_lpm_req(int req)
{
#if DCOSYNCH_CONF_ENABLED
if(req <= MSP430_REQUIRE_LPM1) {
msp430_dco_required++;
}
#endif /* DCOSYNCH_CONF_ENABLED */
}
void
msp430_remove_lpm_req(int req)
{
#if DCOSYNCH_CONF_ENABLED
if(req <= MSP430_REQUIRE_LPM1) {
msp430_dco_required--;
}
#endif /* DCOSYNCH_CONF_ENABLED */
}
void
@ -240,7 +256,9 @@ msp430_cpu_init(void)
}
#endif
#if DCOSYNCH_CONF_ENABLED
msp430_dco_required = 0;
#endif /* DCOSYNCH_CONF_ENABLED */
}
/*---------------------------------------------------------------------------*/
@ -307,6 +325,21 @@ splhigh_(void)
/* #endif */
/* } */
/*---------------------------------------------------------------------------*/
#ifdef __IAR_SYSTEMS_ICC__
int __low_level_init(void)
{
/* turn off watchdog so that C-init will run */
WDTCTL = WDTPW + WDTHOLD;
/*
* Return value:
*
* 1 - Perform data segment initialization.
* 0 - Skip data segment initialization.
*/
return 1;
}
#endif
/*---------------------------------------------------------------------------*/
#if DCOSYNCH_CONF_ENABLED
/* this code will always start the TimerB if not already started */
void

2
platform/wismote/platform-conf.h
View file

@ -141,7 +141,7 @@ typedef unsigned long off_t;
* SPI bus - CC2520 pin configuration.
*/
#define CC2520_CONF_SYMBOL_LOOP_COUNT 800
#define CC2520_CONF_SYMBOL_LOOP_COUNT 2604 /* 326us msp430X @ 16MHz */
/* P1.0 - Input: FIFOP from CC2520 */
#define CC2520_FIFOP_PORT(type) P1##type