Plz explain to me how i program and like that

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theelectronicsfan

Joined: 05 Nov 2009
Posts: 24

05 Nov 2009 7:51 Plz explain to me how i program and like that

Quote:

ok the question is:

how do i program a type of microcontroller with an usb port??
like making led light up flash and such

Quote:

For an example

Link

plz help me

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wp100

Joined: 15 May 2009
Posts: 327
Helped: 45
Location: England

05 Nov 2009 10:23 Re: Plz explain to me how i program and like that

Hi,

Flashing a led is one of the first things to do with a micro.

You need a bit of hardware, could be a breadboard as shown in that video or a ready made developement board - depends what is easily avaialable where you are.
You also need a programmer to put the code into the micro chip - that will depend on which type of micro you go for. AVR or PIC etc.

You then need to decide on which programming language you want to use Assembler or things like C or Basic.

Look around this forum and the web for tutorials for whichever chip and language you prefer.

Here is an example of a Pic tutorial in assembler which also incorperates a hardware series.

http://www.winpicprog.co.uk/pic_tutorial.htm

anandpv2009

Joined: 11 Aug 2009
Posts: 63
Helped: 4
Location: India

05 Nov 2009 14:35 Re: Plz explain to me how i program and like that

ha here is the code
//ccs

Code:

#include <18F2550.h>
#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN
#use delay(clock=20000000)
#include <lcd.c>

void main()
{
int a=1;

while(1)
{
   output_b(a);
   if(a==0x80)
   {
      a=1;
   }
      else
   {
      a=a*2;
   }
   delay_ms(100); //required delay

}

}

elrayes

Joined: 03 Jun 2008
Posts: 164
Helped: 8
Location: Egypt

05 Nov 2009 15:07 Plz explain to me how i program and like that

get PIC18F4550 mcu from microchip, download MPLAB, C18 and Microchip USB framework from microchip website, use project called "CDC basic demo" for PICDEM board, modify in it, compile and build, download hex file on the PIC, your PC now will see a virtual COM port, you can now send data to and from the microcontroller using C++/VB or even matlab and windows hyperterminal, thats how you can make control over USB.
I know its very brief but if you need more details I don't mind at all.
good luck