Merge pull request #109 from malvira/use-rtc-factor
Improvments to enable low-power mode on mc1322x
This commit is contained in:
commit
e929857048
|
@ -10,7 +10,7 @@ CONTIKI_CPU=$(CONTIKI)/cpu/mc1322x
|
|||
|
||||
CONTIKI_CPU_DIRS = . lib src board dev ../arm/common/dbg-io
|
||||
|
||||
MC1322X = debug-uart.c rtimer-arch.c watchdog.c contiki-crm.c contiki-maca.c contiki-misc.c leds-arch.c leds.c contiki-uart.c slip-uart1.c init.c config.c
|
||||
MC1322X = debug-uart.c rtimer-arch.c watchdog.c contiki-maca.c contiki-misc.c leds-arch.c leds.c contiki-uart.c slip-uart1.c init.c config.c
|
||||
|
||||
DBG_IO = dbg-printf.c dbg-snprintf.c dbg-sprintf.c strformat.c
|
||||
|
||||
|
|
|
@ -36,87 +36,46 @@
|
|||
#include <sys/clock.h>
|
||||
#include <sys/cc.h>
|
||||
#include <sys/etimer.h>
|
||||
#include "dev/leds.h"
|
||||
#include <sys/rtimer.h>
|
||||
|
||||
#include "contiki-conf.h"
|
||||
#include "mc1322x.h"
|
||||
|
||||
#include "contiki-conf.h"
|
||||
|
||||
#define MAX_TICKS (~((clock_time_t)0) / 2)
|
||||
|
||||
static volatile clock_time_t current_clock = 0;
|
||||
|
||||
volatile unsigned long seconds = 0;
|
||||
|
||||
#define TCF 15
|
||||
#define TCF1 4
|
||||
#define TCF2 5
|
||||
static struct rtimer rt_clock;
|
||||
|
||||
/* the typical clock things like incrementing current_clock and etimer checks */
|
||||
/* are performed as a periodically scheduled rtimer */
|
||||
void
|
||||
clock_init()
|
||||
rt_do_clock(struct rtimer *t, void *ptr)
|
||||
{
|
||||
/* timer setup */
|
||||
/* CTRL */
|
||||
#define COUNT_MODE 1 /* use rising edge of primary source */
|
||||
#define PRIME_SRC 0xf /* Perip. clock with 128 prescale (for 24Mhz = 187500Hz)*/
|
||||
#define SEC_SRC 0 /* don't need this */
|
||||
#define ONCE 0 /* keep counting */
|
||||
#define LEN 1 /* count until compare then reload with value in LOAD */
|
||||
#define DIR 0 /* count up */
|
||||
#define CO_INIT 0 /* other counters cannot force a re-initialization of this counter */
|
||||
#define OUT_MODE 0 /* OFLAG is asserted while counter is active */
|
||||
rtimer_set(t, RTIMER_TIME(t) + (rtc_freq/CLOCK_CONF_SECOND) , 1,
|
||||
(rtimer_callback_t)rt_do_clock, ptr);
|
||||
|
||||
*TMR_ENBL = 0; /* tmrs reset to enabled */
|
||||
*TMR0_SCTRL = 0;
|
||||
*TMR0_CSCTRL =0x0040;
|
||||
*TMR0_LOAD = 0; /* reload to zero */
|
||||
*TMR0_COMP_UP = 1875; /* trigger a reload at the end */
|
||||
*TMR0_CMPLD1 = 1875; /* compare 1 triggered reload level, 10HZ maybe? */
|
||||
*TMR0_CNTR = 0; /* reset count register */
|
||||
*TMR0_CTRL = (COUNT_MODE<<13) | (PRIME_SRC<<9) | (SEC_SRC<<7) | (ONCE<<6) | (LEN<<5) | (DIR<<4) | (CO_INIT<<3) | (OUT_MODE);
|
||||
*TMR_ENBL = 0xf; /* enable all the timers --- why not? */
|
||||
|
||||
enable_irq(TMR);
|
||||
/* Do startup scan of the ADC */
|
||||
#if CLOCK_CONF_SAMPLEADC
|
||||
adc_reading[8]=0;
|
||||
adc_init();
|
||||
while (adc_reading[8]==0) adc_service();
|
||||
#endif
|
||||
}
|
||||
|
||||
void tmr0_isr(void) {
|
||||
if(bit_is_set(*TMR(0,CSCTRL),TCF1)) {
|
||||
current_clock++;
|
||||
|
||||
if((current_clock % CLOCK_CONF_SECOND) == 0) {
|
||||
seconds++;
|
||||
#if BLINK_SECONDS
|
||||
leds_toggle(LEDS_GREEN);
|
||||
#endif
|
||||
/* ADC can be serviced every tick or every second */
|
||||
#if CLOCK_CONF_SAMPLEADC > 1
|
||||
adc_service();
|
||||
#endif
|
||||
}
|
||||
#if CLOCK_CONF_SAMPLEADC == 1
|
||||
adc_service();
|
||||
#endif
|
||||
|
||||
if(etimer_pending() &&
|
||||
(etimer_next_expiration_time() - current_clock - 1) > MAX_TICKS) {
|
||||
etimer_request_poll();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* clear the compare flags */
|
||||
clear_bit(*TMR(0,SCTRL),TCF);
|
||||
clear_bit(*TMR(0,CSCTRL),TCF1);
|
||||
clear_bit(*TMR(0,CSCTRL),TCF2);
|
||||
return;
|
||||
} else {
|
||||
/* this timer didn't create an interrupt condition */
|
||||
return;
|
||||
}
|
||||
|
||||
/* RTC MUST have been already setup by mc1322x init */
|
||||
void
|
||||
clock_init(void)
|
||||
{
|
||||
rtimer_set(&rt_clock, RTIMER_NOW() + rtc_freq/CLOCK_CONF_SECOND, 1, (rtimer_callback_t)rt_do_clock, NULL);
|
||||
}
|
||||
|
||||
clock_time_t
|
||||
|
|
|
@ -1,121 +0,0 @@
|
|||
/*
|
||||
* Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors
|
||||
* to the MC1322x project (http://mc1322x.devl.org) and Contiki.
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the Institute nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* This file is part of the Contiki OS.
|
||||
*
|
||||
*
|
||||
*/
|
||||
|
||||
#include "mc1322x.h"
|
||||
|
||||
#define CRM_DEBUG 1
|
||||
#if CRM_DEBUG
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#endif
|
||||
|
||||
uint32_t cal_rtc_secs; /* calibrated 2khz rtc seconds */
|
||||
|
||||
void sleep(uint32_t opts, uint32_t mode)
|
||||
{
|
||||
|
||||
/* the maca must be off before going to sleep */
|
||||
/* otherwise the mcu will reboot on wakeup */
|
||||
// maca_off();
|
||||
*CRM_SLEEP_CNTL = opts;
|
||||
*CRM_SLEEP_CNTL = (opts | mode);
|
||||
|
||||
/* wait for the sleep cycle to complete */
|
||||
while(!bit_is_set(*CRM_STATUS,0)) { continue; }
|
||||
/* write 1 to sleep_sync --- this clears the bit (it's a r1wc bit) and powers down */
|
||||
set_bit(*CRM_STATUS,0);
|
||||
|
||||
/* now we are asleep */
|
||||
/* and waiting for something to wake us up */
|
||||
/* you did tell us how to wake up right? */
|
||||
|
||||
/* waking up */
|
||||
while(!bit_is_set(*CRM_STATUS,0)) { continue; }
|
||||
/* write 1 to sleep_sync --- this clears the bit (it's a r1wc bit) and finishes the wakeup */
|
||||
set_bit(*CRM_STATUS,0);
|
||||
|
||||
/* you may also need to do other recovery */
|
||||
/* such as interrupt handling */
|
||||
/* peripheral init */
|
||||
/* and turning the radio back on */
|
||||
|
||||
}
|
||||
|
||||
/* turn on the 32kHz crystal */
|
||||
/* once you start the 32xHz crystal it can only be stopped with a reset (hard or soft) */
|
||||
void enable_32khz_xtal(void)
|
||||
{
|
||||
static volatile uint32_t rtc_count;
|
||||
PRINTF("enabling 32kHz crystal\n\r");
|
||||
/* first, disable the ring osc */
|
||||
ring_osc_off();
|
||||
/* enable the 32kHZ crystal */
|
||||
xtal32_on();
|
||||
|
||||
/* set the XTAL32_EXISTS bit */
|
||||
/* the datasheet says to do this after you've check that RTC_COUNT is changing */
|
||||
/* the datasheet is not correct */
|
||||
xtal32_exists();
|
||||
|
||||
/* now check that the crystal starts */
|
||||
/* this blocks until it starts */
|
||||
/* it would be better to timeout and return an error */
|
||||
rtc_count = *CRM_RTC_COUNT;
|
||||
PRINTF("waiting for xtal\n\r");
|
||||
while(*CRM_RTC_COUNT == rtc_count) {
|
||||
continue;
|
||||
}
|
||||
/* RTC has started up */
|
||||
PRINTF("32kHZ xtal started\n\r");
|
||||
|
||||
}
|
||||
|
||||
void cal_ring_osc(void)
|
||||
{
|
||||
uint32_t cal_factor;
|
||||
PRINTF("performing ring osc cal\n\r");
|
||||
PRINTF("crm_status: 0x%0x\n\r",*CRM_STATUS);
|
||||
PRINTF("sys_cntl: 0x%0x\n\r",*CRM_SYS_CNTL);
|
||||
*CRM_CAL_CNTL = (1<<16) | (20000);
|
||||
while((*CRM_STATUS & (1<<9)) == 0);
|
||||
PRINTF("ring osc cal complete\n\r");
|
||||
PRINTF("cal_count: 0x%0x\n\r",*CRM_CAL_COUNT);
|
||||
cal_factor = (REF_OSC*1000) / *CRM_CAL_COUNT;
|
||||
cal_rtc_secs = (NOMINAL_RING_OSC_SEC * cal_factor)/100;
|
||||
PRINTF("cal factor: %d\n\r", cal_factor);
|
||||
PRINTF("hib_wake_secs: %d\n\r", cal_rtc_secs);
|
||||
set_bit(*CRM_STATUS,9);
|
||||
}
|
|
@ -265,7 +265,7 @@ int contiki_maca_transmit(unsigned short transmit_len) {
|
|||
|
||||
#if BLOCKING_TX
|
||||
/* block until tx_complete, set by contiki_maca_tx_callback */
|
||||
while(!tx_complete && (tx_head != 0));
|
||||
while((maca_pwr == 1) && !tx_complete && (tx_head != 0)) { continue; }
|
||||
#endif
|
||||
}
|
||||
|
||||
|
|
|
@ -55,4 +55,8 @@ typedef unsigned short uip_stats_t;
|
|||
|
||||
typedef uint32_t clock_time_t;
|
||||
|
||||
/* Core rtimer.h defaults to 16 bit timer unless RTIMER_CLOCK_LT is defined */
|
||||
typedef unsigned long rtimer_clock_t;
|
||||
#define RTIMER_CLOCK_LT(a,b) ((signed long)((a)-(b)) < 0)
|
||||
|
||||
#endif
|
|
@ -102,6 +102,7 @@ void buck_setup(void) {
|
|||
CRM->VREG_CNTLbits.VREG_1P5V_SEL = 3;
|
||||
CRM->VREG_CNTLbits.VREG_1P5V_EN = 3;
|
||||
CRM->VREG_CNTLbits.VREG_1P8V_EN = 1;
|
||||
|
||||
while(CRM->STATUSbits.VREG_1P5V_RDY == 0) { continue; }
|
||||
while(CRM->STATUSbits.VREG_1P8V_RDY == 0) { continue; }
|
||||
|
||||
|
@ -149,6 +150,7 @@ void rtc_setup(void) {
|
|||
PRINTF("RTC calibrated to %d Hz\r\n", rtc_freq);
|
||||
} else {
|
||||
PRINTF("32kHz xtal started\n\r");
|
||||
rtc_freq = 32768;
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -167,13 +169,11 @@ void mc1322x_init(void) {
|
|||
PRINTF("mc1322x init\n\r");
|
||||
|
||||
adc_init();
|
||||
clock_init();
|
||||
ctimer_init();
|
||||
process_init();
|
||||
process_start(&etimer_process, NULL);
|
||||
process_start(&contiki_maca_process, NULL);
|
||||
buck_setup();
|
||||
rtc_setup();
|
||||
|
||||
/* start with a default config */
|
||||
|
||||
|
@ -196,6 +196,11 @@ void mc1322x_init(void) {
|
|||
set_demodulator_type(mc1322x_config.flags.demod);
|
||||
set_prm_mode(mc1322x_config.flags.autoack);
|
||||
|
||||
/* must be done AFTER maca_init */
|
||||
/* the radio calibration appears to clobber the RTC trim caps */
|
||||
rtc_setup();
|
||||
rtimer_init();
|
||||
clock_init();
|
||||
|
||||
}
|
||||
|
||||
|
|
|
@ -89,6 +89,10 @@ void ResumeMACASync(void);
|
|||
void radio_init(void);
|
||||
uint32_t init_from_flash(uint32_t addr);
|
||||
|
||||
/* maca_pwr indicates whether the radio is on or off */
|
||||
/* Test it before accessing any radio function or the CPU may hang */
|
||||
extern volatile uint8_t maca_pwr;
|
||||
|
||||
#define MAX_PACKET_SIZE (MAX_PAYLOAD_SIZE + 2) /* packet includes 2 bytes of checksum */
|
||||
|
||||
/* maca register and field defines */
|
||||
|
|
|
@ -110,6 +110,10 @@ enum posts {
|
|||
};
|
||||
static volatile uint8_t last_post = NO_POST;
|
||||
|
||||
/* maca_pwr indicates whether the radio is on or off */
|
||||
/* Test it before accessing any radio function or the CPU may hang */
|
||||
volatile uint8_t maca_pwr = 0;
|
||||
|
||||
volatile uint8_t fcs_mode = USE_FCS;
|
||||
volatile uint8_t prm_mode = PROMISC;
|
||||
|
||||
|
@ -182,6 +186,7 @@ void maca_init(void) {
|
|||
radio_init();
|
||||
flyback_init();
|
||||
init_phy();
|
||||
maca_pwr = 1;
|
||||
set_channel(0); /* things get weird if you never set a channel */
|
||||
set_power(0); /* set the power too --- who knows what happens if you don't */
|
||||
free_head = 0; tx_head = 0; rx_head = 0; rx_end = 0; tx_end = 0; dma_tx = 0; dma_rx = 0;
|
||||
|
@ -879,21 +884,70 @@ const uint32_t addr_reg_rep[MAX_DATA] = { 0x80004118,0x80009204,0x80009208,0x800
|
|||
const uint32_t data_reg_rep[MAX_DATA] = { 0x00180012,0x00000605,0x00000504,0x00001111,0x0fc40000,0x20046000,0x4005580c,0x40075801,0x4005d801,0x5a45d800,0x4a45d800,0x40044000,0x00106000,0x00083806,0x00093807,0x0009b804,0x000db800,0x00093802,0x00000015,0x00000002,0x0000000f,0x0000aaa0,0x01002020,0x016800fe,0x8e578248,0x000000dd,0x00000946,0x0000035a,0x00100010,0x00000515,0x00397feb,0x00180358,0x00000455,0x00000001,0x00020003,0x00040014,0x00240034,0x00440144,0x02440344,0x04440544,0x0ee7fc00,0x00000082,0x0000002a };
|
||||
|
||||
void maca_off(void) {
|
||||
/* Do nothing if already off */
|
||||
if (maca_pwr == 0) return;
|
||||
|
||||
/* wait here till complete and then go off */
|
||||
while (last_post == TX_POST) {
|
||||
return;
|
||||
}
|
||||
|
||||
disable_irq(MACA);
|
||||
/* turn off the radio regulators */
|
||||
reg(0x80003048) = 0x00000f00;
|
||||
/* hold the maca in reset */
|
||||
maca_pwr = 0;
|
||||
|
||||
/* Disable clocks, cancel possible delayed RX post */
|
||||
/* Note mcu will hang if radio is off when a startclk post comes through */
|
||||
*MACA_TMRDIS = (1 << maca_tmren_sft) | ( 1<< maca_tmren_cpl) | ( 1 << maca_tmren_strt);
|
||||
|
||||
/* Turn off the radio regulators */
|
||||
CRM->VREG_CNTLbits.VREG_1P8V_EN = 0;
|
||||
CRM->VREG_CNTLbits.VREG_1P5V_EN = 0;
|
||||
|
||||
/* Hold the maca in reset */
|
||||
maca_reset = maca_reset_rst;
|
||||
}
|
||||
|
||||
void maca_on(void) {
|
||||
/* turn the radio regulators back on */
|
||||
reg(0x80003048) = 0x00000f78;
|
||||
/* reinitialize the phy */
|
||||
reset_maca();
|
||||
init_phy();
|
||||
|
||||
if (maca_pwr != 0) {
|
||||
return;
|
||||
}
|
||||
maca_pwr = 1;
|
||||
|
||||
/* Turn the radio regulators back on */
|
||||
CRM->VREG_CNTLbits.VREG_1P8V_EN = 1;
|
||||
CRM->VREG_CNTLbits.VREG_1P5V_EN = 3;
|
||||
while(CRM->STATUSbits.VREG_1P8V_RDY == 0) { continue; }
|
||||
while(CRM->STATUSbits.VREG_1P5V_RDY == 0) { continue; }
|
||||
|
||||
/* Take out of reset */
|
||||
*MACA_RESET = (1 << maca_reset_clkon);
|
||||
|
||||
/* Wait for VREG_1P5V_RDY indication */
|
||||
while (!((*(volatile uint32_t *)0x80003018) & (1<< 19))) {}
|
||||
|
||||
/* If last turnoff had a pending RX post we will get an action complete/PLL unlock interrupt.
|
||||
* If an abort is now issued we will get an action complete/abort interrupt.
|
||||
* This action complete is delayed by some unknown amount, just clearing MACA_IRQ below will not stop it.
|
||||
* However a NOP does the job!
|
||||
*/
|
||||
*MACA_CONTROL = maca_ctrl_seq_nop | (1 << maca_ctrl_asap);
|
||||
|
||||
/* Something is allowing reserved interrupt 13 on restart? */
|
||||
|
||||
*MACA_MASKIRQ = ((1 << maca_irq_rst) |
|
||||
(1 << maca_irq_acpl) |
|
||||
(1 << maca_irq_cm) |
|
||||
(1 << maca_irq_flt) |
|
||||
(1 << maca_irq_crc) |
|
||||
(1 << maca_irq_di) |
|
||||
(1 << maca_irq_sftclk)
|
||||
);
|
||||
|
||||
last_post = NO_POST;
|
||||
*MACA_CLRIRQ = 0xffff;
|
||||
enable_irq(MACA);
|
||||
|
||||
*INTFRC = (1 << INT_NUM_MACA);
|
||||
}
|
||||
|
||||
|
|
|
@ -72,7 +72,7 @@ void rtc_init_osc(int use_32khz)
|
|||
continue;
|
||||
|
||||
/* RTC has started up */
|
||||
rtc_freq = 32000;
|
||||
rtc_freq = 32768;
|
||||
}
|
||||
else
|
||||
{
|
||||
|
@ -168,7 +168,7 @@ void rtc_calibrate(void)
|
|||
uint32_t count;
|
||||
|
||||
if (__use_32khz) {
|
||||
rtc_freq = 32000;
|
||||
rtc_freq = 32768;
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
|
@ -57,18 +57,41 @@
|
|||
#define PRINTF(...)
|
||||
#endif
|
||||
|
||||
void rtc_isr(void) {
|
||||
PRINTF("rtc_wu_irq\n\r");
|
||||
PRINTF("now is %u\n", rtimer_arch_now());
|
||||
disable_rtc_wu();
|
||||
disable_rtc_wu_irq();
|
||||
static uint32_t last_rtc;
|
||||
|
||||
void
|
||||
rtc_isr(void)
|
||||
{
|
||||
/* see note in table 5-13 of the reference manual: it takes at least two RTC clocks for the EVT bit to clear */
|
||||
if ((CRM->RTC_COUNT - last_rtc) <= 2) {
|
||||
CRM->STATUS = ~0; /* Clear all events */
|
||||
|
||||
// CRM->STATUSbits.RTC_WU_EVT = 1;
|
||||
return;
|
||||
}
|
||||
|
||||
last_rtc = CRM->RTC_COUNT;
|
||||
|
||||
/* Clear all events (for paranoia) */
|
||||
/* clear RTC event flag (for paranoia)*/
|
||||
// CRM->STATUSbits.RTC_WU_EVT = 1;
|
||||
CRM->STATUS = ~0;
|
||||
|
||||
rtimer_run_next();
|
||||
clear_rtc_wu_evt();
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
rtimer_arch_init(void)
|
||||
{
|
||||
last_rtc = CRM->RTC_COUNT;
|
||||
/* enable timeout interrupts */
|
||||
/* RTC WU is the periodic RTC timer */
|
||||
/* TIMER WU is the wakeup timers (clocked from the RTC source) */
|
||||
/* it does not appear you can have both enabled at the same time */
|
||||
CRM->WU_CNTLbits.RTC_WU_EN = 1;
|
||||
CRM->WU_CNTLbits.RTC_WU_IEN = 1;
|
||||
enable_irq(CRM);
|
||||
}
|
||||
|
||||
void
|
||||
|
@ -76,23 +99,52 @@ rtimer_arch_schedule(rtimer_clock_t t)
|
|||
{
|
||||
volatile uint32_t now;
|
||||
now = rtimer_arch_now();
|
||||
PRINTF("rtimer_arch_schedule time %u; now is %u\n", t,now);
|
||||
PRINTF("rtimer_arch_schedule time %u; now is %u\n", t, now);
|
||||
|
||||
#if 1
|
||||
/* If specified time is always in the future, counter can wrap without harm */
|
||||
*CRM_RTC_TIMEOUT = t - now;
|
||||
#else
|
||||
/* Immediate interrupt if specified time is before current time. This may also
|
||||
happen on counter overflow. */
|
||||
if(now>t) {
|
||||
*CRM_RTC_TIMEOUT = 1;
|
||||
if(now > t) {
|
||||
CRM->RTC_TIMEOUT = 1;
|
||||
} else {
|
||||
*CRM_RTC_TIMEOUT = t - now;
|
||||
CRM->RTC_TIMEOUT = t - now;
|
||||
}
|
||||
#endif
|
||||
|
||||
clear_rtc_wu_evt();
|
||||
enable_rtc_wu();
|
||||
enable_rtc_wu_irq();
|
||||
PRINTF("rtimer_arch_schedule CRM_RTC_TIMEOUT is %u\n", *CRM_RTC_TIMEOUT);
|
||||
}
|
||||
|
||||
void
|
||||
rtimer_arch_sleep(rtimer_clock_t howlong)
|
||||
{
|
||||
CRM->WU_CNTLbits.TIMER_WU_EN = 1;
|
||||
CRM->WU_CNTLbits.RTC_WU_EN = 0;
|
||||
CRM->WU_TIMEOUT = howlong;
|
||||
|
||||
/* the maca must be off before going to sleep */
|
||||
/* otherwise the mcu will reboot on wakeup */
|
||||
maca_off();
|
||||
|
||||
CRM->SLEEP_CNTLbits.DOZE = 0;
|
||||
CRM->SLEEP_CNTLbits.RAM_RET = 3;
|
||||
CRM->SLEEP_CNTLbits.MCU_RET = 1;
|
||||
CRM->SLEEP_CNTLbits.DIG_PAD_EN = 1;
|
||||
CRM->SLEEP_CNTLbits.HIB = 1;
|
||||
|
||||
/* wait for the sleep cycle to complete */
|
||||
while((*CRM_STATUS & 0x1) == 0) { continue; }
|
||||
/* write 1 to sleep_sync --- this clears the bit (it's a r1wc bit) and powers down */
|
||||
*CRM_STATUS = 1;
|
||||
|
||||
/* asleep */
|
||||
|
||||
/* wait for the awake cycle to complete */
|
||||
while((*CRM_STATUS & 0x1) == 0) { continue; }
|
||||
/* write 1 to sleep_sync --- this clears the bit (it's a r1wc bit) and finishes wakeup */
|
||||
*CRM_STATUS = 1;
|
||||
|
||||
CRM->WU_CNTLbits.TIMER_WU_EN = 0;
|
||||
CRM->WU_CNTLbits.RTC_WU_EN = 1;
|
||||
|
||||
/* reschedule clock ticks */
|
||||
clock_init();
|
||||
clock_adjust_ticks((CRM->WU_COUNT*CLOCK_CONF_SECOND)/rtc_freq);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
@ -47,15 +47,15 @@
|
|||
#include "sys/rtimer.h"
|
||||
|
||||
/* mc1322x */
|
||||
#include "crm.h"
|
||||
#include "utils.h"
|
||||
#include "mc1322x.h"
|
||||
|
||||
#if USE_32KHZ_XTAL
|
||||
#define RTIMER_ARCH_SECOND 32768
|
||||
#else
|
||||
#define RTIMER_ARCH_SECOND 18778 /* close --- should get calibrated */
|
||||
#define RTIMER_ARCH_SECOND 2000
|
||||
#endif
|
||||
|
||||
#define rtimer_arch_now() (*CRM_RTC_COUNT)
|
||||
#define rtimer_arch_now() (CRM->RTC_COUNT)
|
||||
|
||||
|
||||
#endif /* __RTIMER_ARCH_H__ */
|
||||
|
|
|
@ -106,10 +106,6 @@
|
|||
#define PLATFORM_HAS_LEDS 1
|
||||
#define PLATFORM_HAS_BUTTON 1
|
||||
|
||||
/* Core rtimer.h defaults to 16 bit timer unless RTIMER_CLOCK_LT is defined */
|
||||
typedef unsigned long rtimer_clock_t;
|
||||
#define RTIMER_CLOCK_LT(a,b) ((signed long)((a)-(b)) < 0)
|
||||
|
||||
#define RIMEADDR_CONF_SIZE 8
|
||||
|
||||
#if WITH_UIP6
|
||||
|
|
|
@ -70,6 +70,17 @@ int main(void) {
|
|||
PRINTF("trim xtal for M12\n\r");
|
||||
CRM->XTAL_CNTLbits.XTAL_CTUNE = (M12_CTUNE_4PF << 4) | M12_CTUNE;
|
||||
CRM->XTAL_CNTLbits.XTAL_FTUNE = M12_FTUNE;
|
||||
|
||||
/* configure pullups for low power */
|
||||
GPIO->FUNC_SEL.GPIO_63 = 3;
|
||||
GPIO->PAD_PU_SEL.GPIO_63 = 0;
|
||||
GPIO->FUNC_SEL.SS = 3;
|
||||
GPIO->PAD_PU_SEL.SS = 1;
|
||||
GPIO->FUNC_SEL.VREF2H = 3;
|
||||
GPIO->PAD_PU_SEL.VREF2H = 1;
|
||||
GPIO->FUNC_SEL.U1RTS = 3;
|
||||
GPIO->PAD_PU_SEL.U1RTS = 1;
|
||||
|
||||
} else {
|
||||
/* econotag I */
|
||||
PRINTF("trim xtal for Econotag I\n\r");
|
||||
|
|
Loading…
Reference in a new issue