I've used the low voltage detect using the Microchip C18 compiler for both
the 18F252 and the 18F6720. This compiler has no special instructions for
it, but has the bitfield structures that let you set and clear bits as
desired (just like assembly!). I pretty much just followed the step by
step procedure in the chip datasheet for setting up the LVD. In one
application, I just poll it to flash an LED when the battery is low. In
another, I use the interrupt to save a little data to eeprom as the power
dies.

Harold
> I haven't tried it, but I think it is just implemented as an interrupt:
>
> enable_interrupts(INT_LOWVOLT);
>
> #INT_LOWVOLT
> void
> lowvolt_isr (void)
> {
> ....
> }
>
> You would have to set the LDVCON bits 3-0 directly.
>
> Bruce Partridge
> http://www.rebreather.ca
>
>> -----Original Message-----
>> From: pic microcontroller discussion list
>> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Brian Clewer
>> Sent: Friday, January 09, 2004 1:45 AM
>> To: PICLIST@MITVMA.MIT.EDU
>> Subject: [PIC]:Low Voltage detect
>>
>>
>> Hi all,
>> Has anyone implemented the low voltage detect feature on the PIC 18F
>> parts
>> using the CCS compiler?  As far as I can see, there are no instructions
>> in
>> the CCS manual for this.
>>
>> Brian.
>>
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