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Recent Forum Posts

Re: Converting PBP interrupt to ASM - 18F25K20

maybe like this

https://youtu.be/PQrvgA-w0gk

steps through an array to set portb pin and another array to set timer interval for next interrupt , repeats every 6th pass

ra0 toggles every...
richard Today, 06:10

Re: Converting PBP interrupt to ASM - 18F25K20

as an example this is what i came up with for your first question

#CONFIG
CONFIG FOSC=INTIO67, FCMEN=OFF, IESO=OFF, PWRT=OFF, BOREN=SBORDIS, BORV=18
CONFIG WDTEN=ON, WDTPS=512,...
richard Today, 00:49

Re: Converting PBP interrupt to ASM - 18F25K20

whether the vars are in the same bank or not is irrelevant with indirect addressing, the point is that with pic18 chips an array can be more than 255 bytes in length and may cross a bank boundary. ...
richard Today, 00:44

Re: Converting PBP interrupt to ASM - 18F25K20

Thanks for the insight! I ended up putting all the variables used in the ISR in bank 3 and starting the interrupt with "banksel _ppm_n" in case I every move them to a different bank. I may not need...
achilles03 Yesterday, 21:11

Re: Converting PBP interrupt to ASM - 18F25K20

The Access Bank consists of the first 96 bytes of memory(00h-5Fh) so if you create your asm vars in that space you can use the opcode access field rather than needing to switch banks

eg
ppm_n...
richard Yesterday, 03:27

Re: Converting PBP interrupt to ASM - 18F25K20

Thank you for your feedback! The test code seems to work ok, but when I roll this ISR into my main program, it could occur at any time so it seems setting the correct bank would be important.
...
achilles03 Yesterday, 03:01

Re: Converting PBP interrupt to ASM - 18F25K20

looks close but if the vars used in asm are not in access ram you still need to ensure the correct bank is set, it may look likes it works depending on where the compiler places your vars but its ...
richard Yesterday, 00:16

Re: Converting PBP interrupt to ASM - 18F25K20

I might have figured it out. It looks like I wasn't loading the full pointer into FSR0 since it's a 12-bit pointer. Also I hit on the POSTINC0 option, which is nifty. I believe the ISR should be...
achilles03 - 12th February 2026, 20:58

Converting PBP interrupt to ASM - 18F25K20

I have a couple interrupt routines using DT's instant interrupts in PBP that I'd like to convert to asm to reduce execution time. One of the ISRs uses an external interrupt to time pulses and store...
achilles03 - 12th February 2026, 18:10

Beginners
[Beginner Tutorial] How to get started with PICBASIC PRO Demo, MicroCode Studio & PICKIT 2
by
mister_e

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Published on - 26th June 2011 17:15 Number of Views: 13634
So you're new to PBP and want a simple step-by-step guide? This one will show how how to get started with

PicBasic

...
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[Beginner Tutorial] How to get started with PICBASIC PRO Demo, MPLAB & PICKIT 2
by
mister_e

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Published on - 23rd June 2011 22:52 Number of Views: 11092
So you're new to PBP and want a simple step-by-step guide? This one will show how how to get started with

PICBASIC

...
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Belorussian translation
by
lester

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Published on - 31st May 2011 13:18
Original Article is here: http://www.fatcow.com/edu/melabs-picbasic-be/

Translated by: Bohdan Zograf
...

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Forum Latest Posts

Number of Views: 8856

Some users like to be able to view the most recent posts on the forum. They wish to visit the forum and view the latest posts in all category's in cronological order, without having the forum hide posts that they have all ready seen.
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Today's Post Search or the Missing Link
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mackrackit

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Published on - 1st May 2010 05:59 Number of Views: 9192
With all of the added benefits or the new forum, a useful feature has been lost. This is the "Today's Post" link that was found in the "Quick Links" drop down. Due to compatibility issues with future updates from vBulletin this link can not be brought back.

But there is a couple of ways to do the same thing using the same amount of mouse clicks once it is set up.
...

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Use of Microchip Trademarks and Brands – Guidelines

Published on - 23rd April 2010 20:52 Number of Views: 17652

Microchip brand identity is a valuable asset protected by trademark law. Microchip aims to protect this asset by ensuring that its trademarks are used properly by Microchip, its customers, licensees, distributors, vendors, consultants, developers and others. You may use Microchip trademarks and product names to refer to Microchip products and services as long as you follow these Guidelines.
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How to enter "®" , "©" and "™" symbols

Published on - 23rd April 2010 20:48 Number of Views: 14005

This article shows how to include "®" , "©" and "™" in your articles.
To conform with ...

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