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Discussion Groups | 68HC12 | Re: Please Help...Programming Assitance Needed with Dragon12

Join our technical discussions about Freescale Microcontrollers: M68HC12. (Freescale Semiconductor is a Subsidiary of Motorola).

Re: Please Help...Programming Assitance Needed with Dragon12 - Mich...@oit.edu - Apr 23 22:16:42 2009



I am very new to programming/HC12 so please bare with me. The code i
>am currently dealing with is something my professor made available so
>that i can modify it. I am trying to run a heater using the Dragon 12
>with a relay hooked up between the two. I already have a thermistor
>set up on the board with temperature being displayed to the LCD. I am
>wanting the heater to turn on when the temp is below 270 and turn off
>when the temp is above 280. I currently have the relay hooked up to
>PB2 and ground. This is where my programming knowledge ends. I am
>assuming it is just a matter of turning the relay either high or low
>according to my previously mentioned criteria. What i am wanting to
>know is what i need to add to my Freescale CodeWarrior C code to cause
>these things to happen. If there is any other information you need,
>let me know. Thanks for your help.
>
>-Bryan
>
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