sleep problem help plz >>>.

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  1. - 15th November 2009, 11:19 #1
    Gusse's Avatar
    Gusse
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    Hi there,

    Any changes that you could share applications schematics with us?
    Do you have discrete pull-ups or pull-downs connected to PIC IO's?
    Is PIC only active part of the system?

    BR,
    -Gusse-
  2. - 15th November 2009, 13:35 #2
    Mus.me's Avatar
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    Quote Originally Posted by Gusse View Post
    Hi there,

    Any changes that you could share applications schematics with us?
    Do you have discrete pull-ups or pull-downs connected to PIC IO's?
    Is PIC only active part of the system?

    BR,
    -Gusse-
    hello . i have pic16f913 no pull up resistance external,i have a buzzer with 2 transistor but i take them off when the pic in sleep mode i test the current still 5.9 mA in sleep mode it goes up when wake up between 32 to 65 mA, 1 bottom in portb.0 for interrupt wakeup , and 2 leds i take them off but no change .here is my code example .nothings pluged in the ic external . im confused ..?im sure something in the registers or timers i donno how to set timers
    Code:
    Include "modedefs.bas"
@ DEVICE WDT_OFF, PWRT_OFF,MCLR_OFF,CPD_OFF, BOD_OFF, PROTECT_OFF,INTRC_OSC_NOCLKOUT

ANSEL        = %00000000 
VRCON.7 = 1 'CVref circuit powered down (VREN bit)=save power 
CMCON0=%00000111
'WDTCON = %00010110                                                
WDTCON.0 = 0
WDTCON.4 = 3
OPTION_REG.7 = 1 ' i tryed  this =0  but the same problm
ADCON0.0 = 0
OSCCON.6 = 7
LCDCON.4=0
LCDCON.6=1
LCDCON.7=0
CMCON1 = 7	    		
INTCON = 0		
PCON.4 = 0
PORTB =%00000001
TRISB = %00000001
PORTA = 0
TRISA = 0
PORTC = 0
TRISC = 0

G VAR BYTE
H VAR BYTE 
L VAR BYTE 
K VAR BYTE
NOTE VAR BYTE
BUZ VAR PORTB.3


MAIN:
G = G + 1
IF G => 30 THEN  slp
HIGH PORTB.4
PAUSE 100
LOW PORTB.4
PAUSE 1000
GOTO MAIN

SLP:
OPTION_REG.7=0
'INTCON.0 = 0 'RBIF
'INTCON.3 = 1   'RBIE  
INTCON.1 = 0
INTCON.4 = 1
@ SLEEP 
@ NOP
PAUSE 100
HIGH PORTB.2
PAUSE 1000
LOW PORTB.2
GOTO MAIN
END
    Last edited by Mus.me; - 15th November 2009 at 14:26.
  3. - 15th November 2009, 14:37 #3
    bogdan's Avatar
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    Default rising edge or falling edge (INTEDG bit) ?

    How much is the consumption when you press and hold the button (portb.0) ?
  4. - 15th November 2009, 15:20 #4
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    How about by changing all pins to inputs before sleep?
    Code:
    <code><font color="#000000">SLP:
OPTION_REG.7=0
<font color="#000080"><i>'INTCON.0 = 0   'RBIF
'INTCON.3 = 1   'RBIE  
</i></font>INTCON.1 = 0
INTCON.4 = 1
TRISA = %11111111
TRISB = %11111111
TRISC = %11111111
<font color="#008000">@ SLEEP 
@ NOP
</font>TRISA = %00000000
TRISB = %00000001
TRISC = %00000000
<b>PAUSE </b>100
<b>HIGH </b>PORTB.2
<b>PAUSE </b>1000
<b>LOW </b>PORTB.2
<b>GOTO </b>MAIN</code>
    Any effects?

    BR,
    -Gusse-
  5. - 16th November 2009, 00:27 #5
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    Default Try PBP SLEEP instead of Microchip @ SLEEP

    I don't use the @ SLEEP command.

    I use PBP SLEEP xxx to get a delay and low power.

    HTH
    BrianT
  6. - 16th November 2009, 03:03 #6
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    Quote Originally Posted by Gusse View Post
    How about by changing all pins to inputs before sleep?
    Code:
    <code><font color="#000000">SLP:
OPTION_REG.7=0
<font color="#000080"><i>'INTCON.0 = 0   'RBIF
'INTCON.3 = 1   'RBIE  
</i></font>INTCON.1 = 0
INTCON.4 = 1
TRISA = %11111111
TRISB = %11111111
TRISC = %11111111
<font color="#008000">@ SLEEP 
@ NOP
</font>TRISA = %00000000
TRISB = %00000001
TRISC = %00000000
<b>PAUSE </b>100
<b>HIGH </b>PORTB.2
<b>PAUSE </b>1000
<b>LOW </b>PORTB.2
<b>GOTO </b>MAIN</code>
    Any effects?

    BR,
    -Gusse-
    hello forum my wishese to everyones , Gusse i did this still nothings and got 1 volt out from each pin and more current, i will try what u BrianT says , thank you for help .
  7. - 16th November 2009, 08:07 #7
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    Are you sure that your PIC is not damaged?
    Sound strange that current consumption gets higher when IO's are changed to inputs. I have used this very successfully. During sleep mode, only current consumption that I can see, comes from low dropout 5V regulator.

    I think this is only way to put PIC into sleep for undefined period.
    Code:
    <code><font color="#008000">@ sleep
</font></code>
    or
    Code:
    <code><font color="#000000"><b>ASM
    </b><font color="#008000">sleep
</font><b>ENDASM
</b></code>
    BR,
    -Gusse-
    Last edited by Gusse; - 16th November 2009 at 08:12.
  8. - 16th November 2009, 08:21 #8
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    Quote Originally Posted by Gusse View Post
    Are you sure that your PIC is not damaged?
    Sound strange that current consumption gets higher when IO's are changed to inputs. I have used this very successfully. During sleep mode, only current consumption that I can see, comes from low dropout 5V regulator.

    I think this is only way to put PIC into sleep for undefined period.
    Code:
    <code><font color="#008000">@ sleep
</font></code>
    or
    Code:
    <code><font color="#000000"><b>ASM
    </b><font color="#008000">sleep
</font><b>ENDASM
</b></code>
    BR,
    -Gusse-
    morning Gusse and everyones thank you for helping me .i just wake up and foundout that pic has short of 600 ohm between vcc and gnd i changed the pic the same f913 and sleep mode down to 0.063mA ,and this is my code example thank you again everyone here trying to help .
    Code:
    Include "modedefs.bas"
@ DEVICE WDT_OFF, PWRT_OFF,MCLR_OFF,CPD_OFF, BOD_OFF, PROTECT_OFF,INTRC_OSC_NOCLKOUT

ANSEL        = %00000000 
VRCON.7 = 1
CMCON0=%00000111
'WDTCON = %00010110                                                
WDTCON.0 = 0
WDTCON.4 = 3
OPTION_REG.7 = 1
ADCON0.0 = 0
OSCCON.6 = 7
LCDCON.4=0
LCDCON.6=1
LCDCON.7=0
CMCON1 = 7	    		
intcon = 0		
PCON.4 = 0
PORTB =%00000001
TRISB = %00000001
PORTA = 0
TRISA = 0
PORTC = 0
TRISC = 0

G VAR BYTE
H VAR BYTE 
L VAR BYTE 
K VAR BYTE
NOTE VAR BYTE
BUZ VAR PORTB.3


MAIN:
G = G + 1
IF G => 30 THEN  slp
HIGH PORTB.4
PAUSE 100
IF PORTB.0 = 0 THEN SLP
LOW PORTB.4
PAUSE 1000
IF PORTB.0 = 0 THEN SLP
GOTO MAIN

SLP:
OPTION_REG.7=0
HIGH PORTB.2
PAUSE 1000
LOW PORTB.2
INTCON.1 = 0
INTCON.4 = 1
@ SLEEP 
@ NOP
PAUSE 100
HIGH PORTB.2
PAUSE 1000
LOW PORTB.2
g = 0
GOTO MAIN
END
    Last edited by Mus.me; - 16th November 2009 at 08:26.
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