Using microcontrollers to pass values through USB to computer

[AlanTheWoo]

For my current project, I'm reading off many discrete samples of a waveform and then plotting them on a computer. Would it be efficient to simply latch each sample, then immediately transfer it through the USB to the computer? Or should I first store it in chunks of some kind? Can someone with experience recommend a USB microcontroller and maybe even include some sample code?

 

[plcsavvy]

I would first store the data as the data may come in faster than the microcontroller can send it. If your microcontroller can handle simultaneous interrupts, I would use one interrupt to poll the incoming data and another to generate the serial timing to send the data to the USB device. For information on interfacing USB to a microcontroller you can pick up a book titled "USB Complete" written by Jan Axelson, Author of the best selling books "Parrallel Ports Complete and Serial Ports complete. I'm not sure which if any microcontrollers have built in USB capability. You can try

http://www.microcontrollers.com

Before attempting to find a microcontroller I would first purchase the book USB Complete. What language do you intend to program in?

best regards, PLCSAVVY

 

[AlanTheWoo]

I'm hoping that for my application, I can use basic, otherwise I'll be using C