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VFD Shenanigans

A guy gave me this display back in college about 10 years ago.
I finally got around to it.

gabrielGabriel
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pic vintage display VFD 16F886 FLIP Oldschool IEE

This project was created on 08/12/2014 and last updated 11 years ago.

Description

I set out to write a driver for this IEE FLIP VFD screen.
I wanted to write a parallel input driver for added vintage points but I hooked up the WR pin to the MCLR pin on my Dev. board and damaged the pin when I programmed the PIC.

After about 30 minutes of denial, I decided to continue on but writing a serial driver.

In the end it was a whole lot easier than I thought. Getting the screen to write characters with Commas and Decimal points was a bit tricky.

The screen is Alpha Numeric, it doesn't take the whole ASCII Table and uses the unused ASCII characters for other things.
For example: ASCII 0x20 with a comma is replaced by 0x80
I had to write an interpreter function to change characters to their equivalent character with comma or decimal point.

Ill post the driver once its fully tested.

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  • The Codes

    Gabriel • 08/19/2014 at 17:35 • 0 comments

    Code can be found here:

    CCS Compiler.

    http://www.ccsinfo.com/forum/viewtopic.php?p=189831#189831

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