Samsung Galaxy Note, 4G LTE Plans, Transfer Photos Videos from iPhone to Samsung, Network Performance, Mobile Accounts, Furious Gold SPD TooL, Latest Version Full Setup

Info How to Set Up a Timer in PIC16F877A

Info How to Set Up a Timer in PIC16F877A - this blog we have built from a few years ago and already very much information about gadgets that we convey and a lot of blog visitors New Blog Techno News who are satisfied with the information, we will always try to update the latest information for you, first about Info How to Set Up a Timer in PIC16F877A many already we collect data to make this article so you do not miss the news, please see:

Articles : Info How to Set Up a Timer in PIC16F877A
full Link : Info How to Set Up a Timer in PIC16F877A

You can also see our article on:


Info How to Set Up a Timer in PIC16F877A



We have Three Timers in PIC16F877A , and here we have a look to how to setup the TIMER0 in PIC16F877A using HiTech C programm 




• To set up the timer, one must first disable interrupts so that an interrupt doesn’t occur when the timer expires.
• Then, enable the timer and assign the prescaler to the timer.
• Establish the prescaler value, and finally, load the timer register.
 Whenever the timer expires, the T0IF bit in the INTCON register will be set.
• We must clear this bit, reload the timer register, and then execute the code that is to be done at this time.

In code, the setup portion might look something like:
########################## IN ASSEMBLY PROGRAM ###########################
banksel INTCON
bcf INTCON,T0IE ; Mask timer interrupt
banksel OPTION_REG
bcf OPTION_REG,T0CS ; Enable timer
bcf OPTION_REG,PSA ; Prescaler to timer
bcf OPTION_REG,PS2 ; \
bsf OPTION_REG,PS1 ; >- 1:16 prescale
bsf OPTION_REG,PS0 ; /
movlw D’100’ ; Timer will count
movwf TMR0 ; 156 (256-100) counts

######################## IN HITECH C PROGRAM #######################################
OPTION_REG= 0x0F;
  TMR0=0x0F;
  while(TMR0IF=0);
  TMR0IF=0;
##################################################

• Clearly, the individual bits in the option register could all be set with a single store.
• If we didn’t care about the RB0 interrupt, the weak pullups, or the transition of RA4, then instead of five bit manipulations we could have said:
• movlw B’10000011’ ; Set up prescaler and
• movwf OPTION_REG ; timer

The execution loop might look something like:



main:
    btfss INTCON,T0IF ; Did timer overflow?
    goto main ; No, hang around some more 
    movlw D’100’ ; Timer will count
    movwf TMR0 ; 156 (256-100) counts
    bcf INTCON,T0IF ; reset overflow flag
    call DoCode ; Execute main code
    goto main ; Go back and wait





articles Info How to Set Up a Timer in PIC16F877A finished in discussion

hopefully the information we convey about Info How to Set Up a Timer in PIC16F877A can benefit you in getting new knowledge about technology,

you just finished reading the information Info How to Set Up a Timer in PIC16F877A we hope this informmation can answer the question you submit to googlle, if you want to bookmark or share please use link https://moymoycikukecik.blogspot.com/2012/10/info-how-to-set-up-timer-in-pic16f877a.html and do not forget to always visit this blog to get the latest information every day.

Tag :
Share on Facebook
Share on Twitter
Share on Google+
Tags :

Related : Info How to Set Up a Timer in PIC16F877A

0 komentar:

Posting Komentar