External interrupts

Started by "Kenneth (K) Macrae" in Piclist10 years ago 4 replies

Hi I'm using a PIC16F84a to control a UV light box. I've got an external interrupt which is connected to the door, which acts as an...

Hi I'm using a PIC16F84a to control a UV light box. I've got an external interrupt which is connected to the door, which acts as an interlock. If the UV light is on, and the door is opened, the light will switch off. The light will also not switch on while the door is open. The problems is: When the UV light (fluorescent type) switches on, it seems to trigger the external interrupt,...


Re: PIC16F84A and "This device requires firmware version 2.1.0 or higher" messag

Started by Scott Thompson in Piclist14 years ago 1 reply

I have heard of this happening to someone else.  Perhaps contacting Microchip technical support will help.  I saw your post on the...

I have heard of this happening to someone else.  Perhaps contacting Microchip technical support will help.  I saw your post on the user's forum.  Is there any device that the unit will accept?  That is, does it communicate at all to the PS+?   I have a virtual


Re: PIC16F84A and "This device requires firmware version 2.1.0 or higher" messag

Started by Scott Thompson in Piclist14 years ago

Your firmware version with the FLASH OS is at least version 4.00.  There are .hex files to upgrade that to something like V4.2 or...

Your firmware version with the FLASH OS is at least version 4.00.  There are .hex files to upgrade that to something like V4.2 or 4.3.   Keep posting to the microchip forum.  I think you'll find your answer there.    


PIC16f84A morse code decoder

Started by Michael Erath in Piclist13 years ago


PIC16F84 and PIC16F84A-20/P

Started by justinwoodman in Piclist13 years ago 1 reply

I have a programmer that can handle the PIC16F84. It is a kit from ramsey: ...

I have a programmer that can handle the PIC16F84. It is a kit from ramsey: http://www.r amseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=PIC1 I would like to know if I cou