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magic_mauve
Joined: 05 Apr 2011
Posts: 12
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| deep sleep problems with PIC18F46J11 |
 Posted: Tue Apr 05, 2011 7:41 am |
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Hello,
I can't seem to wake up from deep sleep using the RTCC alarm on the PIC18F46J11. ( I also tried and failed with the deep sleep watchdog too). Here is my code. I would be really grateful if someone could spot where I am going wrong. I am fairly new to programming with PICS. The alarm works fine when I go to normal (PRI-IDLE) sleep.
| Code: | #include <18F46J11.h> // CCS standard header for PICC 18F46J11
#define CPU_CLK 4000000
#use fast_io(A)
#use fast_io(B)
#use fast_io(C)
#use fast_io(D)
#use fast_io(E)
#use DELAY(crystal=4000000)
#byte WDTCON = 0xFC0
#byte DSCONH = 0xF4D
#byte DSCONL = 0xF4C
#byte RTCCFG = 0xF3F
#byte DSWAKEH= 0xF4b
#byte DSWAKEL= 0xF4a
#byte OSCCON = 0xFD3
#bit IDLEN=OSCCON.7 // used to set IDLE low-power mode
#bit DSEN = DSCONH.7 // used to set deep sleep
#bit REGSLP =WDTCON.7
#bit RELEASE = DSCONL.0
#bit RTCSYNC = RTCCFG.4
#bit DS_WAKEUP_BIT = WDTCON.3 // bit that detects wake up from deep sleep
#include <string.h>
#include <stdlib.h>
/************************************************** 4.0 Macro Constant Definitions *************************************************************
*/
#FUSES NOXINST //Extended set extension and Indexed Addressing mode disabled (Legacy mode)
#FUSES STVREN //Stack full/underflow will cause reset
#FUSES NOWDT //No Watch Dog Timer, control placed on SWDTEN bit
#FUSES NOPROTECT //Code not protected from reading
#FUSES NOIESO //two speed start up disabled
#FUSES NOFCMEN //Fail-safe clock monitor disabled
#FUSES NOLPT1OSC //Timer1 configured for low-power operation
#FUSES NOT1DIG
#FUSES HS //High speed Osc (> 4mhz for PCM/PCH(>10mhz for PCD)
#FUSES WDT16 //
#FUSES DSWDT8192 // 8.5 sec deep sleep watchdog
#FUSES DSWDT // enable deep sleep watchdog timer
#FUSES NODSBOR // disable deep sleep brown-out
#FUSES RTCOSC_INT // use INTRC as ref clock for RTCC
#FUSES DSWDTOSC_INT // use INTRC as ref clock for deep sleep wdt
#FUSES NOIOL1WAY //No reconfiguration of peripheral pins allowed
#FUSES PRIMARY //Primary clock is system clock when scs=00
#use DELAY(crystal=4000000)
#PIN_SELECT U2TX=PIN_B4
#PIN_SELECT U2RX=PIN_B5
#use rs232(UART2, baud=9600, ERRORS, STREAM=PC)
#define TRISA_VAL 0x02
#define TRISB_VAL 0x2F
#define TRISD_VAL 0x20
#define TRISE_VAL 0x00
byte alarm=0;
//interrupt handling routing for Real-Time Clock
#INT_RTC
void Send_Time_RTC(void)
{
alarm++;
}
void main(void)
{
rtc_time_t SetTime;
rtc_time_t AlarmTime;
setup_oscillator(OSC_NORMAL|OSC_PLL_OFF);
set_tris_a(TRISA_VAL);
set_tris_b(TRISB_VAL);
set_tris_d(TRISD_VAL);
set_tris_e(TRISE_VAL);
//delay to allow power to stabilise
delay_ms(1000);
fprintf(PC,"\r\n\r\nHello World: Booting Up\r\n");
switch ( restart_cause() )
{
case WDT_TIMEOUT:
{
fprintf(PC,"\r\nRestarted processor because of watchdog timeout\r\n");
break;
}
case NORMAL_POWER_UP:
{
fprintf(PC,"\r\nNormal power up!\r\n");
break;
}
case WDT_FROM_SLEEP:
{
fprintf(PC,"\r\nrestart caused by watchdog from sleep\r\n");
break;
}
default:
fprintf(PC,"\r\nunknown restart reason\r\n");
break;
}
delay_ms(1000);
// check if reset is from deep sleep
if (DS_WAKEUP_BIT == 1)
{
// wake up from deep sleep
fprintf(PC,"Deep Sleep Wake up");
// determine cause of wake up
fprintf(PC," cause H %x\r\n", DSWAKEH);
fprintf(PC," cause L %x (watchdog is bit 4 set) \r\n", DSWAKEL);
DS_WAKEUP_BIT = 0; // clear the deep sleep bit
fprintf(PC," Brown Out check %x\r\n", DSCONL);
// clear the release bit
RELEASE = 0;
fprintf(PC," wait 2 secs \r\n");
delay_ms(2000);
}
fprintf(PC,"Send to deep sleep and set up alarm for wake up at 10 secs\r\n");
delay_ms(1000);
// set up rtc
SetTime.tm_year = 11;
SetTime.tm_mon = 3;
SetTime.tm_mday = 9;
SetTime.tm_wday = 3;
SetTime.tm_hour = 11;
SetTime.tm_min = 47;
SetTime.tm_sec = 0;
// set alarm time
AlarmTime.tm_year = 11;
AlarmTime.tm_mon = 3;
AlarmTime.tm_mday = 9;
AlarmTime.tm_wday = 3;
AlarmTime.tm_hour = 11;
AlarmTime.tm_min = 47;
AlarmTime.tm_sec = 15;
rtc_write(&SetTime);
setup_rtc(RTC_ENABLE,0);
setup_rtc_alarm(RTC_ALARM_ENABLE, RTC_ALARM_10_SECONDS, 0xFF);
rtc_alarm_write(&AlarmTime);
enable_interrupts(INT_RTC);
enable_interrupts(GLOBAL);
REGSLP = 1; // enable low-power operation in sleep mode
IDLEN = 0;
while (RTCSYNC > 0) ;
DSEN = 1;
sleep();
fprintf(PC,"The end\r\n");
}
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Tue Apr 05, 2011 4:23 pm |
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| What's your CCS compiler version ? |
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magic_mauve
Joined: 05 Apr 2011
Posts: 12
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| Posted: Wed Apr 06, 2011 2:40 am |
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| It is version 4.100. |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Fri Apr 08, 2011 2:54 pm |
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Here's a test program for RTCC alarm wake-up from Deep Sleep.
I don't have your exact PIC, but I have the 18F24J11 which is in
the same family.
I have a 32.768 KHz watch crystal installed on the Timer1 oscillator pins
on the PIC. I didn't have the 12 pf capacitors recommended by the PIC
data sheet for use with that crystal, so I used 22 pf caps and it still worked.
Here's the output from the program shown below. The PIC wakes up
every 5 seconds, which is correct. I timed it with a stop-watch.
It's working. I tested this with compiler versions 4.100 and 4.119.
| Quote: |
Start-up by some other method.
Going to sleep.
Wake-up by RTCC alarm from Deep Sleep.
Going to sleep.
Wake-up by RTCC alarm from Deep Sleep.
Going to sleep.
Wake-up by RTCC alarm from Deep Sleep.
Going to sleep.
|
I didn't try to test the "Context save" feature for Deep Sleep mode.
(And I don't really want to work on it). I just wanted to show how to use
the RTCC alarm to wake-up from Deep Sleep. Here is the test program:
| Code: |
#include <18F24J11.h>
#fuses HS,NOWDT,RTCOSC_T1 // RTCC uses Timer1 osc with 32.768 KHz xtal
#use delay(crystal=20M) // PIC uses 20 MHz crystal
#use rs232(baud=9600, UART1, ERRORS)
#byte WDTCON = 0xFC0
#byte DSCONH = 0xF4D
#byte DSCONL = 0xF4C
#byte RTCCFG = 0xF3F
#byte DSWAKEH= 0xF4b
#byte DSWAKEL= 0xF4a
#byte OSCCON = 0xFD3
#bit IDLEN =OSCCON.7 // Used to set IDLE low-power mode
#bit DSEN = DSCONH.7 // Used to set deep sleep
#bit REGSLP =WDTCON.7
#bit RELEASE = DSCONL.0
#bit RTCSYNC = RTCCFG.4
#bit DS_WAKEUP_BIT = WDTCON.3 // Bit that detects wake up from DS
#bit DSRTC = DSWAKEL.3
//==============================================
void main(void)
{
rtc_time_t SetTime;
rtc_time_t AlarmTime;
rtc_time_t read_clock;
// Release the PIC's i/o pins for normal operation
// after waking up from Deep Sleep. Important !
RELEASE = 0;
// Tell what caused us to start-up.
if((DS_WAKEUP_BIT == 1) && (DSRTC == 1))
printf("\n\rWake-up by RTCC alarm from Deep Sleep.\n\r");
else
printf("\n\rStart-up by some other method.\n\r");
setup_rtc(RTC_ENABLE,0);
// Set initial RTC date/time values in structure.
SetTime.tm_year = 0x11;
SetTime.tm_mon = 3;
SetTime.tm_mday = 9;
SetTime.tm_wday = 3;
SetTime.tm_hour = 0x11;
SetTime.tm_min = 0x47;
SetTime.tm_sec = 0;
// Write that structure into the RTC hardware registers
// inside the 18F26J11.
rtc_write(&SetTime);
// Set RTC alarm date/time.
AlarmTime.tm_year = 0x11;
AlarmTime.tm_mon = 3;
AlarmTime.tm_mday = 9;
AlarmTime.tm_wday = 3;
AlarmTime.tm_hour = 0x11;
AlarmTime.tm_min = 0x47;
AlarmTime.tm_sec = 5;
/*
while(1)
{
rtc_read(&read_clock); //reads clock value from RTCC
printf("\n\r%02u/%02u/20%02u %02u:%02u:%02u",read_clock.tm_mon,read_clock.tm_mday,read_clock.tm_year,read_clock.tm_hour,read_clock.tm_min,read_clock.tm_sec);
delay_ms(1000);
}
*/
rtc_alarm_write(&AlarmTime);
setup_rtc_alarm(RTC_ALARM_ENABLE, RTC_ALARM_10_SECONDS, 0xFF);
printf("Going to sleep.\n\r");
// Enable Deep Sleep mode.
REGSLP = 1; // enable low-power operation in sleep mode
IDLEN = 0;
while(RTCSYNC);
#asm // Time-critical section must be in ASM
BSF DSEN
SLEEP
#endasm
// We should never reach the following line after a
// Deep Sleep RTCC wake-up, because it does a reset
// intentionally. It re-starts code execution at main().
printf("Woke-up from sleep ! \r\n");
while(1);
} |
----
Edit:
Removed the line for 'enable_interrupts(INT_RTCC);' that was placed
after the printf for "going to sleep". It's not necessary.
Last edited by PCM programmer on Sun Apr 10, 2011 2:39 pm; edited 1 time in total |
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magic_mauve
Joined: 05 Apr 2011
Posts: 12
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| Posted: Sun Apr 10, 2011 2:30 pm |
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Thank you PCM programmer! I am delighted to say thanks to you I have got it working now. Much appreciated.  |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Sun Apr 10, 2011 2:40 pm |
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After you posted, I reviewed the code and noticed that I had left in a line
from your program, where you enabled INT_RTCC interrupts. That's not
needed for my demo program so I edited the code and removed it.
I tested it just now, and the program runs fine without it. |
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magic_mauve
Joined: 05 Apr 2011
Posts: 12
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| Posted: Sun Apr 10, 2011 2:57 pm |
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| Great. Thanks again. |
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heUAcyp
Joined: 16 Mar 2011
Posts: 33
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| RTCC issue |
| Posted: Thu Jun 09, 2011 9:10 am |
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Hi all,
Since it has been discussed here, I have a question on RTCC.
I set hour = 23 , min= 59 and sec=50 , just to make sure that it will automatically increment the day after 23:59:59. But apparently PIC re-starts counting from 20:00:00 and doesn't increment the day, I am posting the output on the hyperterminal:
| Quote: | 03/09/2011 23:59:50
03/09/2011 23:59:52
03/09/2011 23:59:53
03/09/2011 23:59:54
03/09/2011 23:59:55
03/09/2011 23:59:56
03/09/2011 23:59:57
03/09/2011 23:59:58
03/09/2011 23:59:59
03/09/2011 20:00:00
03/09/2011 20:00:01
03/09/2011 20:00:02
03/09/2011 20:00:03 |
and the code I used:
| Code: | #include <18F25J11.h>
#device ADC=10
#include <STDIO.H>
#include <stdlib.h>
#include <math.h>
#include <STRING.H>
#include <2408.c>
#fuses HS,NOWDT,NOPROTECT,RTCOSC_T1
#use delay(clock=4000000)
#use rs232 (baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)
#byte WDTCON = 0xFC0
#byte DSCONH = 0xF4D
#byte DSCONL = 0xF4C
#byte RTCCFG = 0xF3F
#byte DSWAKEH= 0xF4b
#byte DSWAKEL= 0xF4a
#byte OSCCON = 0xFD3
#byte INTCON = 0xFF2
#byte INTCON2 = 0xFF1
//
#bit IDLEN=OSCCON.7 // used to set IDLE low-power mode ( will be set to zero for both deep-sleep and sleep modes)
#bit DSEN = DSCONH.7 // used to set deep sleep (1 for deep-sleep)
#bit REGSLP =WDTCON.7
#bit RELEASE = DSCONL.0
#bit RTCSYNC = RTCCFG.4
#bit DSINT0 = DSWAKEH.0 // bit for INT0 interrupt - change detection
#bit DS_WAKEUP_BIT = WDTCON.3 // bit that detects wake up from deep sleep
#bit INT0IE = INTCON.4
#bit INT0IF = INTCON.1
#bit INTEDG0 = INTCON2.6
int8 i ;
void EnterDeepSleep()
{
// Enable Deep Sleep mode.
REGSLP = 1; // enable low-power operation in sleep mode
IDLEN = 0;
while(RTCSYNC);
#asm // Time-critical section must be in ASM
BSF DSEN
SLEEP
NOP
#endasm
}
void main()
{
//disable_interrupts(GLOBAL);
rtc_time_t SetTime;
rtc_time_t read_clock;
setup_rtc(RTC_ENABLE,0);
// Set initial RTC date/time values in structure.
SetTime.tm_year = 11;
SetTime.tm_mon = 3;
SetTime.tm_mday = 9;
SetTime.tm_wday = 3;
SetTime.tm_hour = 23;
SetTime.tm_min = 59;
SetTime.tm_sec = 49;
// Write that structure into the RTC hardware registers
// inside the 18F26J11.
rtc_write(&SetTime);
while(1)
{
rtc_read(&read_clock); //reads clock value from RTCC
printf("\n\r%02u/%02u/20%02u %02u:%02u:%02u",read_clock.tm_mon,read_clock.tm_mday,read_clock.tm_year,read_clock.tm_hour,read_clock.tm_min,read_clock.tm_sec);
delay_ms(1000);
}
RELEASE = 0; // Activate i/o pins
delay_ms(10);
printf("\n\r\n\r");
printf("DS_WAKEUP_BIT: %x \n\r", DS_WAKEUP_BIT);
delay_ms(10);
printf("DS_WAKEUP_BIT: %x \n\r", DSINT0);
delay_ms(10);
printf("DSWAKEH: %x \n\r", DSWAKEH);
delay_ms(10);
printf("DSWAKEL: %x \n\r", DSWAKEL);
delay_ms(10);
// Clear the wake-up source registers, regardless
// of what the PIC data sheet says.
DSWAKEL = 0;
DSWAKEH = 0;
// Look at the current state of the push-button switch.
// Based on that, set the edge that we expect to see next.
if(input(PIN_B0) == 1) // If switch is high
ext_int_edge(H_TO_L); // Then expect a falling edge next
else // If switch is low
ext_int_edge(L_TO_H); // Then expect a rising edge next
clear_interrupt(INT_EXT);
enable_interrupts(INT_EXT);
delay_ms(10);
EnterDeepSleep() ;
printf("Should never get here\n\r");
while(true)
{
}
}
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how this can be fixed? I have tried with different PIC's and same problem exists.
My compiler version is V4.095, I have tested with V4.085 and its not working.
Regards |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Thu Jun 09, 2011 11:56 am |
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It works OK with vs. 4.121:
| Quote: |
03/09/2011 23:59:49
03/09/2011 23:59:49
03/09/2011 23:59:50
03/09/2011 23:59:51
03/09/2011 23:59:52
03/09/2011 23:59:53
03/09/2011 23:59:54
03/09/2011 23:59:55
03/09/2011 23:59:56
03/09/2011 23:59:57
03/09/2011 23:59:58
03/09/2011 23:59:59
03/10/2011 00:00:00
03/10/2011 00:00:01
03/10/2011 00:00:02 |
There's a bug in your compiler version, 4.095. I don't have time to look it
at it right now. |
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heUAcyp
Joined: 16 Mar 2011
Posts: 33
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| Posted: Thu Jun 09, 2011 12:37 pm |
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Thanks sir , easiest solution would be to get V 4.121
Regards |
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heUAcyp
Joined: 16 Mar 2011
Posts: 33
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| Still not working |
| Posted: Fri Jun 17, 2011 10:49 am |
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Sir, I have tried many times but RTCC is NOT incrementing while in deep sleep mode:
I am constantly checking registers, and I have fixed all the problems associated with that. RTCC is just not incrementing
With code given below. Initial output on hyperterminal is :
| Quote: | check hyperterminal
before the if loop DS_WAKEUP_BIT: 00
before the if loop DSWAKEH: 00
before the if loop DSWAKEL: 00
after the if loop DSWAKEH: 00
after the if loop DSWAKEL: 00
check if the registers are set DSWAKEH: 00
check if the registers set DSWAKEL: 00 |
When I close the switch(PIN B0 == 0 )
| Quote: | before the if loop DS_WAKEUP_BIT: 01
before the if loop DSWAKEH: 01
before the if loop DSWAKEL: 00
DS_WAKEUP_BIT: 01
Interrupt detected
DSWAKEH: 01
DSWAKEL: 00
Patch is on - DATE:9: 3: 11
TIME:12: 59: 49
sleeping now
DS_WAKEUP_BIT: 01
after the if loop DSWAKEH: 01
after the if loop DSWAKEL: 00
check if the registers are set DSWAKEH: 00
check if the registers set DSWAKEL: 00 |
| Quote: | before the if loop DS_WAKEUP_BIT: 01
before the if loop DSWAKEH: 01
before the if loop DSWAKEL: 00
DS_WAKEUP_BIT: 01
Interrupt detected
DSWAKEH: 01
DSWAKEL: 00
Patch is off -- DATE:9. 3. 11
TIME:12: 59: 49
sleeping now
DS_WAKEUP_BIT: 01
after the if loop DSWAKEH: 01
after the if loop DSWAKEL: 00
check if the registers are set DSWAKEH: 00
check if the registers set DSWAKEL: 00 |
The code I am using:
| Code: | #include <18F25J11.h>
#device ADC=10
#include <STDIO.H>
#include <stdlib.h>
#include <math.h>
#include <STRING.H>
#include <2408.c>
#fuses HS,NOWDT,NOPROTECT, RTCOSC_T1
#use delay(clock=4000000)
#use rs232 (baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)
#byte WDTCON = 0xFC0
#byte DSCONH = 0xF4D
#byte DSCONL = 0xF4C
#byte RTCCFG = 0xF3F
#byte DSWAKEH= 0xF4b
#byte DSWAKEL= 0xF4a
#byte OSCCON = 0xFD3
#byte INTCON = 0xFF2
#byte INTCON2 = 0xFF1
//
#bit IDLEN=OSCCON.7 // used to set IDLE low-power mode ( will be set to zero for both deep-sleep and sleep modes)
#bit DSEN = DSCONH.7 // used to set deep sleep (1 for deep-sleep)
#bit REGSLP =WDTCON.7
#bit RELEASE = DSCONL.0
#bit RTCSYNC = RTCCFG.4
#bit DSINT0 = DSWAKEH.0 // bit for INT0 interrupt - change detection
#bit DS_WAKEUP_BIT = WDTCON.3 // bit that detects wake up from deep sleep
#bit INT0IE = INTCON.4
#bit INT0IF = INTCON.1
#bit INTEDG0 = INTCON2.6
char buffer[160];
rtc_time_t SetTime;
int8 status ;
void InitTime()
{
/* !!!!! I cannot define it here as
it gives error in dateandtimeon() function)*/
//rtc_time_t SetTime;
setup_rtc(RTC_ENABLE,0);
//set_rtcc(RTCC_INTERNAL);
// Set initial RTC date/time values in structure.
SetTime.tm_year = 11;
SetTime.tm_mon = 3;
SetTime.tm_mday = 9;
SetTime.tm_wday = 3;
SetTime.tm_hour = 12;
SetTime.tm_min = 59;
SetTime.tm_sec = 49;
}
void EnterDeepSleep()
{
// Enable Deep Sleep mode.
REGSLP = 1; // enable low-power operation in sleep mode
IDLEN = 0;
while(RTCSYNC);
#asm // Time-critical section must be in ASM
BSF DSEN
SLEEP
NOP
#endasm
}
void dateandtimeon()
{
rtc_read(&SetTime);
buffer="";
sprintf(buffer, "Patch is on - DATE:%d: %d: %d", SetTime.tm_mday, SetTime.tm_mon,SetTime.tm_year); printf("%s\n\r",buffer);
buffer="";
sprintf(buffer, "TIME:%d: %d: %d ", SetTime.tm_hour, SetTime.tm_min, SetTime.tm_sec); printf("%s\n\r",buffer);
}
void dateandtimeoff()
{
rtc_read(&SetTime);
buffer="";
sprintf(buffer, "Patch is off -- DATE:%d. %d. %d", SetTime.tm_mday, SetTime.tm_mon,SetTime.tm_year); printf("%s\n\r",buffer);
buffer="";
sprintf(buffer, "TIME:%d: %d: %d ", SetTime.tm_hour,SetTime.tm_min, SetTime.tm_sec); printf("%s\n\r",buffer);
}
void storetoMemory() {
if(status == 1) // If switch is high
dateandtimeoff(); // Then expect a falling edge next
else // If switch is low
dateandtimeon();
delay_ms(10);
printf("sleeping now \n\r ") ;
delay_ms(10);
}
void main()
{
output_high(PIN_A2) ;
InitTime() ;
rtc_write(&SetTime);
printf("check hyperterminal \n\r ") ;
RELEASE = 0; // Activate i/o pins
delay_ms(10);
printf("before the if loop DS_WAKEUP_BIT: %x \n\r", DSINT0);
delay_ms(10);
printf("before the if loop DSWAKEH: %x \n\r", DSWAKEH);
delay_ms(10);
printf("before the if loop DSWAKEL: %x \n\r", DSWAKEL);
delay_ms(10);
/*if loop to perform main task*/
if((DS_WAKEUP_BIT == 1) && (DSWAKEH == 1))
{
delay_ms(10);
printf("DS_WAKEUP_BIT: %x \n\r", DS_WAKEUP_BIT);
delay_ms(10);
printf("Interrupt detected \n\r");
delay_ms(10);
printf("DSWAKEH: %x \n\r", DSWAKEH);
delay_ms(10);
printf("DSWAKEL: %x \n\r", DSWAKEL);
delay_ms(10);
storetoMemory() ;
delay_ms(200);
printf("DS_WAKEUP_BIT: %x \n\r", DS_WAKEUP_BIT);
delay_ms(10);
clear_interrupt(INT_EXT);
enable_interrupts(INT_EXT);
}
printf("after the if loop DSWAKEH: %x \n\r", DSWAKEH);
delay_ms(10);
printf("after the if loop DSWAKEL: %x \n\r", DSWAKEL);
delay_ms(10);
DSWAKEL = 0;
DSWAKEH = 0;
printf("check if the registers are set DSWAKEH: %x \n\r", DSWAKEH);
delay_ms(10);
printf("check if the registers set DSWAKEL: %x \n\r", DSWAKEL);
delay_ms(10);
if(input(PIN_B0) == 1)
{ // If switch is high
ext_int_edge(H_TO_L); // Then expect a falling edge next
status = 0 ;
}
else // If switch is low
{
ext_int_edge(L_TO_H); // Then expect a rising edge next
status = 1 ;
}
clear_interrupt(INT_EXT);
enable_interrupts(INT_EXT);
delay_ms(10);
enable_interrupts(INT_RTCC);
EnterDeepSleep() ;
printf("Should never get here\n\r");
while(true)
{
}
}
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Compiler version is still V4.095 but I have ordered the V4.121 .
As you see in the lines:
| Quote: | Patch is on - DATE:9: 3: 11
TIME:12: 59: 49 |
and
| Quote: | Patch is off -- DATE:9. 3. 11
TIME:12: 59: 49 |
RTCC is not working.
Please help.
Regards |
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heUAcyp
Joined: 16 Mar 2011
Posts: 33
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| Posted: Fri Jun 17, 2011 1:45 pm |
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Here is the simplified code,
Basically problem is the RTCC does not increment. Initially set values keeps repeating.
| Code: | #include <18F25J11.h>
#device ADC=10
#include <STDIO.H>
#include <stdlib.h>
#include <math.h>
#include <STRING.H>
#include <2408.c>
#fuses HS,NOWDT,NOPROTECT, RTCOSC_T1
#use delay(clock=4000000)
#use rs232 (baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)
#byte WDTCON = 0xFC0
#byte DSCONH = 0xF4D
#byte DSCONL = 0xF4C
#byte RTCCFG = 0xF3F
#byte DSWAKEH= 0xF4b
#byte DSWAKEL= 0xF4a
#byte OSCCON = 0xFD3
#byte INTCON = 0xFF2
#byte INTCON2 = 0xFF1
//
#bit IDLEN=OSCCON.7 // used to set IDLE low-power mode ( will be set to zero for both deep-sleep and sleep modes)
#bit DSEN = DSCONH.7 // used to set deep sleep (1 for deep-sleep)
#bit REGSLP =WDTCON.7
#bit RELEASE = DSCONL.0
#bit RTCSYNC = RTCCFG.4
#bit DSINT0 = DSWAKEH.0 // bit for INT0 interrupt - change detection
#bit DS_WAKEUP_BIT = WDTCON.3 // bit that detects wake up from deep sleep
#bit INT0IE = INTCON.4
#bit INT0IF = INTCON.1
#bit INTEDG0 = INTCON2.6
char buffer[160];
rtc_time_t SetTime;
int8 status ;
void InitTime()
{
setup_rtc(RTC_ENABLE,0);
SetTime.tm_year = 11;
SetTime.tm_mon = 3;
SetTime.tm_mday = 9;
SetTime.tm_wday = 3;
SetTime.tm_hour = 12;
SetTime.tm_min = 59;
SetTime.tm_sec = 49;
}
void EnterDeepSleep()
{
// Enable Deep Sleep mode.
REGSLP = 1; // enable low-power operation in sleep mode
IDLEN = 0;
while(RTCSYNC);
#asm // Time-critical section must be in ASM
BSF DSEN
SLEEP
NOP
#endasm
}
void dateandtimeon()
{
rtc_read(&SetTime);
buffer="";
sprintf(buffer, "ON_TIME:%d: %d: %d ", SetTime.tm_hour, SetTime.tm_min, SetTime.tm_sec); printf("%s\n\r",buffer);
}
void dateandtimeoff()
{
rtc_read(&SetTime);
buffer="";
sprintf(buffer, "OFF_TIME:%d: %d: %d ", SetTime.tm_hour,SetTime.tm_min, SetTime.tm_sec); printf("%s\n\r",buffer);
}
void main()
{
InitTime() ;
rtc_write(&SetTime);
RELEASE = 0; // Activate i/o pins
delay_ms(10);
printf("DS_WAKEUP_BIT: %x \n\r", DSINT0);
delay_ms(10);
printf("DSWAKEH: %x \n\r", DSWAKEH);
delay_ms(10);
printf("DSWAKEL: %x \n\r", DSWAKEL);
delay_ms(10);
/*if loop to perform main task*/
if((DS_WAKEUP_BIT == 1) && (DSWAKEH == 1))
{
if(status == 1) // If switch is high
dateandtimeoff(); // Then expect a falling edge next
else // If switch is low
dateandtimeon();
}
DSWAKEL = 0;
DSWAKEH = 0;
if(input(PIN_B0) == 1)
{ // If switch is high
ext_int_edge(H_TO_L); // Then expect a falling edge next
status = 0 ;
}
else // If switch is low
{
ext_int_edge(L_TO_H); // Then expect a rising edge next
status = 1 ;
}
clear_interrupt(INT_EXT);
enable_interrupts(INT_EXT);
delay_ms(10);
enable_interrupts(INT_RTCC);
EnterDeepSleep() ;
printf("Should never get here\n\r");
while(true)
{
}
}
|
And the output on hyperterminal when using switch at pin 21 (INT0) :
| Quote: | DS_WAKEUP_BIT: 01
DSWAKEH: 01
DSWAKEL: 00
ON_TIME:12: 59: 49
DS_WAKEUP_BIT: 01
DSWAKEH: 01
DSWAKEL: 00
OFF_TIME:12: 59: 49 |
|
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dap20
Joined: 11 Aug 2011
Posts: 5
|
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| Posted: Fri Jan 27, 2012 4:42 pm |
|
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| PCM programmer wrote: |
while(RTCSYNC);
#asm // Time-critical section must be in ASM
BSF DSEN
SLEEP
#endasm
// We should never reach the following line after a
// Deep Sleep RTCC wake-up, because it does a reset
// intentionally. It re-starts code execution at main().
|
You say you make it re-start code execution at main intentionally. How can I make it continue just after the sleep instruction and not go back to the main ?
thanks |
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|
PCM programmer
Joined: 06 Sep 2003
Posts: 21708
|
|
| Posted: Mon Jan 30, 2012 9:00 pm |
|
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Read the 18F46J11 data sheet:
| Quote: |
3.6.3 DEEP SLEEP WAKE-UP SOURCES
While in Deep Sleep mode, the device can be awakened
by a MCLR, POR, RTCC, INT0 I/O pin interrupt,
DSWDT or ULPWU event. After waking, the device performs
a POR. When the device is released from Reset,
code execution will begin at the device’s Reset vector.
|
There is no option to resume running at the line in the program
after the Deep Sleep. It always does a Power-on-Reset. |
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