First PIC Microcontroller Program

This is my first time using a microcontroller, I just got the Pic Kit 3. I use the Pic18F45K20 controller demo board to animate LED lights. I also use a separate pin out to control a Piezoelectric buzzer harvested from an old dial up modem. The buzzer is driven with a digital square wave: on (time delay) off (time delay).

Please let me know if I am doing anything terribly wrong. I have no idea why I need to have the Vpp/CTRL pin at V+ to make this run.

Category:

Science & Technology

Tags:

• PicKit 3
• Pic18F45K20
• PIC Microcontroller
• LED animation
• Piezo-Electric Buzzer
• digital electronics

[acestu]

Unlike the Pickit2 the Pickit 3 power has got to be turned on in the programmer settings, just tick the checbox and apply.

[preetamvp]

Vpp is also the MCLR and MCLR bit has to be high for the demo board to work... Have been trying to power the demoboard without using a breadboard but not able to.. just wondering what have you connected pin 1 to???

[macgyver2210]

If I'm not mistaken that's a PIC24F on the Dev board that comes with the PICkit 3. I believe the Vpp pin is peripheral power, isn't it?

[ukkev]

lvp is probably enabled which it is by default... It can be disabled in the configuration bits.... Look at page 313 of the datasheet

[mvkwisha]

you'll have to clear MCLR (MCLRE)bit in config register so you wont have to power the Vpp pin to run, had me bugged too, good luck