If you're going to be doing serial comms with a 16F628. Then all the more reason to use the interrupt driven version. I could see it if you could only use SEROUT2, but the 628 has a USART. With the PWPS program, it all happens in the background, leaving you to do HSERIN/OUT at your leasure, without having to worry about timing the serial stuff in-between the pulses.
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