Low voltage PICs and LVP

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camerart

Well-Known Member
Hi,
I am about to program 18LF2520 PICs which are low voltage, has this anything to do with low voltage programming LVP?
Camerart
 
No! The LVP is a wondrous idea! You can use the same system voltage to program the device. However... Once a device is set to Low Voltage Programming.. RE3 is then unavailable as a IO pin...
 
Ian Rogers said:
No! The LVP is a wondrous idea! You can use the same system voltage to program the device. However... Once a device is set to Low Voltage Programming.. RE3 is then unavailable as a IO pin...
Click to expand...
Hi I,
"You can use the same system voltage to program the device." What does this mean?

I have a Pickit3 circuit that allows LVP, but from earlier posts, I think I can avoid it.

I would like to program the PICs using only the Pickit3 set to 3.3v, or am I getting programming voltages mixed up with PIC power voltages?
C.
 
In your case... Just make sure LVP is off in the config and don't pay it any mind... You'll never use it!

Just do it as you would before... And Yes! as you say.. Make sure pickit3 is set for 3v3...
 
Hi,
I've hit a buffer.
Just finished setting up the header file, config bits and FREQ, then couldn't save it. See attached?
C
 
Hi,
Attached
EDIT: Unable to post images.
I get a pop-up saying "Files newxc8_header.h was changed to read only! Can not save it."
Any ideas?

EDITx2: Done it!!
C
 
Last edited:
You are trying to save to a directory that you're not allowed to....

You need to download hoversnap.... This lets you snapshot parts of the screen...
 
Ian Rogers said:
You are trying to save to a directory that you're not allowed to....

You need to download hoversnap.... This lets you snapshot parts of the screen...
Click to expand...
Hi,
As mentioned, new computer! I use Irfanview, as hoversnap, I haven't updated all of the addons yet.
Cheers, C.
 
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