C Coding C for Assignment - Microchips, Switches, LED's, and Pickits

[C] Coding C for Assignment - Microchips, Switches, LED's, and Pickits - Printable Version

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+---- Thread: [C] Coding C for Assignment - Microchips, Switches, LED's, and Pickits (/showthread.php?tid=5124069)

Coding C for Assignment - Microchips, Switches, LED's, and Pickits - Underworldproblem - Jan 6, 2016

Hi, I have an Culminating Task to do. 15% of my mark.

I finished creating my circuit on the breadboard.

Image of Breadboard: Spoiler (Click to View)

Everything is powered by the Pickit which connects to the 5pin thing, above the microchip. There is a resistor and capacitor on each switch. Switches are used to change the LED pattern. Each switch = 1 pattern. I grounded each LED correctly and powered them according to the diagram below. Switches connect to the microchip, pin 4 and pin 11.

We use this diagram to know where to placed what into the PIC 16F684 Microchip: Spoiler (Click to View)

PORTA = 0b000001;
PORTC = 0b000010;

Microchip Pickit 2: Spoiler (Click to View)

We use this to input the code into the microchip, which carries out the pattern to the LED's.

Code:
Spoiler (Click to View)
Spoiler (Click to View)

I am wondering if anyone has any idea about this and knows how to make a pattern on C using this base code, and also turning on a specific LED, and even dimming an LED?

* - sqsgkrlhdwg - Jan 6, 2016

(Jan 6, 2016 03:53 PM)❤️ HYFR ❤️ Wrote: I am wondering if anyone has any idea about this and knows how to make a pattern on C using this base code, and also turning on a specific LED, and even dimming an LED?

Hi,
The answer is in your own question.

Look at the sample codes.

* - Underworldproblem - Jan 6, 2016

(Jan 6, 2016 05:54 PM)Leƒƒe Wrote: Hi,
The answer is in your own question.

Look at the sample codes.

Like I know im suppose to change the Port numbers. But, like how do I make a pattern. I dont know if I am explaining it right.

* - sqsgkrlhdwg - Jan 6, 2016

(Jan 6, 2016 05:55 PM)❤️ HYFR ❤️ Wrote: Like I know im suppose to change the Port numbers. But, like how do I make a pattern. I dont know if I am explaining it right.

What do you mean by pattern ?

Lighting some LEDs ? Doing it rythmically ?

I never used to program on that type of chip.
Maybe this documentation will help you (heavy file) : http://ww1.microchip.com/downloads/en/DeviceDoc/70157F.pdf
However, I bet you can light some leds with that for instance, where the hexadecimal values represents the pin I guess :

PHP Code 


<?php 
#define GREEN_LED 0x1
#define RED_LED 0x10

PORTC = GREEN_LED & RED_LED;  // Light 2 LEDs 

If you want to do it in rythm, use the waiting code in the sample (The asm("nop") loop)

* - 0xDEAD10CC - Jan 6, 2016

(Jan 6, 2016 03:53 PM)❤️ HYFR ❤️ Wrote: Hi, I have an Culminating Task to do. 15% of my mark.

I finished creating my circuit on the breadboard.

Image of Breadboard: Spoiler (Click to View)

Everything is powered by the Pickit which connects to the 5pin thing, above the microchip. There is a resistor and capacitor on each switch. Switches are used to change the LED pattern. Each switch = 1 pattern. I grounded each LED correctly and powered them according to the diagram below. Switches connect to the microchip, pin 4 and pin 11.

We use this diagram to know where to placed what into the PIC 16F684 Microchip: Spoiler (Click to View)

PORTA = 0b000001;
PORTC = 0b000010;

Microchip Pickit 2: Spoiler (Click to View)

We use this to input the code into the microchip, which carries out the pattern to the LED's.

Code:
Spoiler (Click to View)
Spoiler (Click to View)

I am wondering if anyone has any idea about this and knows how to make a pattern on C using this base code, and also turning on a specific LED, and even dimming an LED?

Lol, I doubt you can dim the LED without a variable resistor which controls the current going to the LED. By your breadboard, I don't see one... The only other way is to have a resistor which is toggled in and out of the circuit by some switch so that you can step up or step down the resistance immediately. It's not going to be a smooth dimming effect this way however. The other obvious way is to run the LED off of a battery -- fairly constant dimming effect as the battery runs out of juice. :)

Also, Binary literals too are usually only a GCC extension, you don't need them IMO. If you understand how to use bitwise arithmetic to check, set, toggle, and clear certain bits, this is easy.