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

I'm looking for a way to easily and clearly demonstrate to students the SX's speed (using SX/B) compared to BS2.
 

When I brought this up a few months ago, Bean mentioned controlling a video. I agree that is, intellectually, proof. And I mention the video module to students. But I'd like to give them something that they can build in a half hour on each platform and then see the BS2 obviously fail to do the job while the SX hums away like a darling.

 

For example, I once saw a simple demo of a transistor vs a relay for switching LEDs. A frequency was generated and sent to both. They started out at 1 Hz and both did fine. As the frequency increased the transistors continued fine while the relays started rattling all over the place and missing cycles. The smoke coming out of a relay was the kicker.

 


I guess I am trying to find something that is simple, but changes so fast that an SX can catch several cycles while the BS2 misses it.

 

Criteria:

The projects have to be built with a few simple components, like a WAM kit and an SX Tech Tool

Easy to explain what is happening at a WAM-ish level of experience

Built in a half hour 

SX code must be written in SX/B

 

The only idea I have so far is to link the two platforms, simultaneouly start them counting loops and then simultaniously stop the looping. Compare the number of loops done by each.

 

Any ideas are appreciated. Thanks.

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