pic18f87k40 Timer1 setting
Hello members
PIC18F67K40
i try to operate timer1 without gate control.
seams it don't work.(timer0 work perfect).
i use 48mhz internal osc
i don't know what is wrong
Code:
PIE4.0=1 'TMR1 Overflow Interrupt Enable bit
INTCON.6=1 'Peripheral Interrupt Enable bit
TMR1CLK=%00000001 'Timer1 Clock Source Selection Register Fosc/4
'TMR1CLK=%00000011 'Timer1 Clock Source Selection Register HFINTOSC
;TMR1GATE=
T1GCON.7=0 'Timer Gate Enable bit
T1CON=00110100 'Timer1 Prescale 8 , Do not synchronize external clock input & off
;T1CON=00110000 'Timer1 Prescale 8 , Synchronize external clock input with system clock & off
PIR4.0=0 'CLEAR INT TIMER1
'****** TEST TIMER1 *******
T1CON.0=1 'TIMER 1 ON
WAIT2:
IF PIR4.0 THEN 'Timer1 INT
T1CON.0=0 'Timer1 Off
PIR4.0=0 'CLEAR INT
PORTE.5=PORTE.5 ^ 1 'led on/off
TEMP=35536 '20MS /8 48MHZ
TMR1H=TEMP.BYTE1
TMR1L=TEMP.BYTE0
T1CON.0=1 'TIMER 1 ON
ENDIF
GOTO WAIT2
'************************
Re: pic18f87k40 Timer1 setting
Have you defined temp as word ?- you do not show in your code.
Re: pic18f87k40 Timer1 setting
Hi
Thanks for your replay.
i found the problem , i use wrong datasheet(PIC18 L_F26_27_45_46_47_55_56_57K40 ).
have different at datasheet PIC18(L)F67K40DataSheet40001841D
the Peripheral Interrupt iS PIR5.0 NO PIR4.0
IF SOME ONE NEED, TIMER1 SETTING FOR PIC18F67K40 without gate control
PIE5.0=1 'TMR1 Overflow Interrupt Enable bit
INTCON.6=1 'Peripheral Interrupt Enable bit
'internal osc 32mhz
TMR1CLK=%00000001 'Timer1 Clock Source Selection Register Fosc/4
T1GCON=0 'GATE CONTROL OFF
T1CON=00110000 'Timer1 Prescale 8 , Synchronize external clock input with system clock & off
PIR5.0=0 'CLEAR INT TIMER1
'****** TEST TIMER1 *******
T1CON.0=1 'TIMER 1 ON
WAIT2:
IF PIR5.0 THEN 'TIMER 1 INT
T1CON.0=0 'TIMER 1 Off
PIR5.0=0 'CLEAR INT
PORTE.5=PORTE.5 ^ 1 ' LED ON/OFF
TEMP=15536 '50ms /8 32MHZ
TMR1H=TEMP.BYTE1
TMR1L=TEMP.BYTE0
T1CON.0=1 'TIMER 1 ON
ENDIF
GOTO WAIT2
