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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by chibi41

  1. C

    math equation for time delay

    i just know that "volatile". Thus, then should define it like this.."volatile int i,x;"..?but i need "i" to be always positive..
  2. C

    math equation for time delay

    its ok..no big deals..:)
  3. C

    math equation for time delay

    okay,i will try as you suggest then..thank you..:)
  4. C

    math equation for time delay

    yes,you are right anything *0=0..but cos 0 =1..am i right? t0 is start with zero because it start at origin which is t=0.the it follows with another 't' which are t1,t2,t3,t4,t5. the value of t will be determine the period of the switching pulses..
  5. C

    math equation for time delay

    has usb on it?bad port?isn't the usb port is on pins 18 and i think all the port is same as long as they were input/ouptut port.
  6. C

    math equation for time delay

    i am not sure about that but if i am not mistaken, if we didn't set it as the analog output or input then the pins will automatically set as digital output.:)
  7. C

    math equation for time delay

    yes, it was already set in digital output. But i did not understand how to check if internal pull up are on or off? i didn;t get any ouput at the pins,that was problem now.before this i am manually calculate the values of 't' and write it in time delay and it is work. But when i programme the...
  8. C

    math equation for time delay

    ohh...sorry about that.. i am manually generate PWM signal through the output port.Usually, people generate pwm signals through the CCP pins but the PWM that will be generated is Sinusoidal PWM(SPWM) isn't it? But my pwm is dual slope pwm(DSPWM) which is i can modified for every time switching...
  9. C

    math equation for time delay

    hello, i am calculating several values for time delay for input output port. From the coding below,i set two conditions which are if the x is even number, s=4500 and if x=odd, s =5000.There is no error when i'm run the code programming,but when i load it into pic simulation it doesn't show...
  10. C

    set_power_pwm_override...help!!!

    how to determine the condition for this function currently i am using this coding case 0:{ set_power_pwm_override(1,true,0); set_power_pwm_override(0,false,1); set_power_pwm_override(2,true,0); set_power_pwm_override(3,false,1); set_power_pwm_override(5,true,0)...
  11. C

    analogue display..proteus simulation

    no need to be worries anymore..my supervisors reject that circuit already..LOL..stresss!!
  12. C

    analogue display..proteus simulation

    hello guys, i am currently doing a simple simulation about Low Frequency Wien Bridge Sinewave Oscillators and i want to display the signal output which is sine wave output..but i don't know how to setting up the analogue display in proteus..i have done so many ways and search in the internet...
  13. C

    PWM output override.. (pic184431)

    hi, i am using pic18f4431 to drive 3-phase inverter. Before this i try to generate just an ordinary pwm signals by using this code below and it works very well : void main() { setup_power_pwm_pins(PWM_BOTH_ON, PWM_BOTH_ON, PWM_BOTH_ON, PWM_BOTH_ON)...
  14. C

    Basic circuit or project examples using pic16f1527

    Yes, this pic is enhanced in16F family,so perhaps has a few extra instruction but where could i am able to have this few extra instruction. Perhaps it might be simple and not much different with another pic 16F,but i don't know how simple is it and how much it would be different.Just refering...
  15. C

    Basic circuit or project examples using pic16f1527

    Is there anyone here know or have where i can have the basic circuit or project examples using pic18f1527.I need it very much.I have search so many times and also asking many people in my college but there is no one familiar with this pic.Most people are only familiar with pic16f16f877a,16f876...
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