[PIC] PIC16F84A Timer0 module

[gusts]

Hello all!

I just wanted to know whether PIC16F84A has any bit with a function like "Timer0 enable" or is it ever-running? I looked through the registers associated with the Timer0 but didn't find anything like that. I hope You understood me.

Best regards
gusts

 

[zoef100]

Hello all!

I just wanted to know whether PIC16F84A has any bit with a function like "Timer0 enable" or is it ever-running? I looked through the registers associated with the Timer0 but didn't find anything like that. I hope You understood me.

Best regards
gusts

Timer0 is a free-running instruction (or RA4 edge detection) counter. Use OPTION REG <5> to select mode and the interrupt mask INTCON<5> to have TIMER0 interact with your code via the TIMER0 interrupt - INTCON2 - when TIMER0 overflows. It runs all the time, but if the interrupt mask bit is cleared, it won't affect the device's function or your code.

 

[zsolt1]

hi ,
the timer on the 16f84 has no enable bit

 

[paulfjujo]

hello,


You can use another way to have an ON/OFF counting for Timer0
if RA4 is not used , tied RA4 to level 0V
put flag TOSE bit to 0
and after you can use TOCS to send or not send FOSC to timer0
so like an enabled bit..

are you agree with this ?

 

[zsolt1]

hello,


You can use another way to have an ON/OFF counting for Timer0
if RA4 is not used , tied RA4 to level 0V
put flag TOSE bit to 0
and after you can use TOCS to send or not send FOSC to timer0
so like an enabled bit..

are you agree with this ?

i believe the same effect is obtained if the pin is configured as output ....

 

[gusts]

hello,


You can use another way to have an ON/OFF counting for Timer0
if RA4 is not used , tied RA4 to level 0V
put flag TOSE bit to 0
and after you can use TOCS to send or not send FOSC to timer0
so like an enabled bit..

are you agree with this ?

i believe the same effect is obtained if the pin is configured as output ....

Excellent ideas! I will try both of them!