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how do you make a state machine using a PIC?

 
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buckeyes1997



Joined: 12 May 2005
Posts: 15

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how do you make a state machine using a PIC?
PostPosted: Fri May 13, 2005 11:53 am     Reply with quote
i have been playing around with FPGA's lately and love the simplicity of state machines in VHDL. is there an easy way to do a state machine design using a PIC micro? what would the format look like?

thanks
bfemmel



Joined: 18 Jul 2004
Posts: 40
Location: San Carlos, CA.

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State Machine Stuff
PostPosted: Fri May 13, 2005 12:33 pm     Reply with quote
buckeyes1997,

Here is little piece of code you can modify to make what you want.
Code:

/* State Machine */

   currentState = RESET;

while(TRUE)  {

   switch (currentState)    {
      case RESET:
         /* do setup and reset stuff */
         currentState = STATE1;
         break
      case STATE1:
         /* do things for this State */
         if (Something_Happens) {
            /* do stuff */
            currentState = nextState;
         }
         break
      case STATE2:
         /* do things for this State */
         if (Something_Happens) {
            /* do stuff */
            currentState = nextState;
         }
         break
      case STATE3:
         /* do things for this State */
         if (Something_Happens) {
            /* do stuff */
            currentState = nextState;
         }
         break
      case STATE4:
         /* do things for this State */
         if (Something_Happens) {
            /* do stuff */
            currentState = nextState;
         }
         break
      default:
   }   
}   

Good Luck
- Bruce
buckeyes1997



Joined: 12 May 2005
Posts: 15

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awesome
PostPosted: Mon May 16, 2005 7:36 pm     Reply with quote
awesome thanks
anyone else have a template or anything to add? have you used the code provided.
matt
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