In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Mag748 wrote:

[3]Hello,[/3]

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[3]I currently have a fully functioning SX program that I would like to upgrade. Right now, the only thing that it does is receive a serial stream and decodes the data, updating an LED display. I would like to add a function which will send a serial stream <I style="mso-bidi-font-style: normal">as well as</I> listen to the original incoming serial stream for instructions. The serial stream that I would like to send is midi time code. So I would need some way of keeping track of time. I looked around for a 'stopwatch' chip or something that keeps time faster than just the DS1620 (at least 1/30 of a sec). Using the ISR that I already have (which I am using to receive the serial data) can I use it to send data as well? Luckily it's the same baud and everything. So, ideally, is there a way to send, receive, AND keep track of time all in the same ISR?[/3]

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[3]I could probably figure out the keeping track of time part fairly easy. Simply knowing how many clock cycles equal one thirtieth of a second. And then keeping a counter or something. I am not that experienced with interrupts though.[/3]

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[3]Thank you for reading,[/3]

[3]Marcus[/3]

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