In SX Microcontrollers, SX/B Compiler and SX-Key Tool, tdg8934 wrote:

The code is very simply laid out to follow for either the BS2 or SX28 as it is almost identical. What this version of the code does is to scroll messages across the LED display from the right side to the left as you would expect. It should be possible to display and hold the text. However, the 4017 chips drive the display message from right to left. To make it go up and down or reverse would take some trickery and possibly different hardware. 

You can control how fast the messages move across the screen. It is done by DATA statements for each column of data being pushed across the screen. It actually does this very fast over and over and creates a persistance of vision optical illusion. 

You can create custom characters or symbols. I will attach an excel file that shows how to create the DATA statements for numbers and letters and symbols. 

I hope this answered your questions. 

 

Thanks,

Timothy Gilmore

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