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This is a discussion on PIC-based IE-Bus (AVC-LAN) interpreter within the The File Library forums, part of the Gen II (2004-2009) Toyota Prius Forums category; This is my source code for the current (snooping) implementation of my PIC based IE Bus decoder. To hook it ...


PIC-based IE-Bus (AVC-LAN) interpreter

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electricitylikesme
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Default PIC-based IE-Bus (AVC-LAN) interpreter

This is my source code for the current (snooping) implementation of my PIC based IE Bus decoder.

To hook it up you need to use Marcin's IE-Bus driver design (included).

Use a 20mhz oscillator for the PIC16F628A, I use 33pF capacitors with it and a 120 ohm series resistor to prevent overdriving the oscillator.

The IE Bus driver connects the AVC-Out line to Port B, Pin 0 of the PIC and AVC-In to Port B, Pin 3 of the PIC. Use a MAX-232 to connect the USART to a PC.

The program expects to communicate at 115.2kbps, no flow control, 8 data bits, no parity and 1 stop bit.

I'm posting this in the hopes it'll help others who want to tap the AVC-LAN and naturally it's provided 'as is' so have an idea of what you're doing before you start.

The best information source I've found for the IE Bus and related things is Marcin's website and I developed this by carefully studying his source code (and the fact the framework has been on HDD for the last 3 years).
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File Type: zip IEDecode.zip (14.1 KB, 515 views)

Last edited by electricitylikesme; 05-18-2008 at 11:17 AM.
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