Re: USB interface

castlebravo242@xxxxxxx wrote:

The data comes from heart beats and steps and switches. 4 mega bytes is the

No, I mean what type of processor, FPGA, logic circuits are involved.

The actual data does't matter.

Since this is a new design, look at LPC2148.

This one is ready to use:
http://www.sparkfun.com/commerce/product_info.php?products_id=8627

There are app notes and lots of source code out there to make a USB data logger. The storage of data can be in FLASH or RAM.

And the chip can plug into a USB port to be read.


desired size. I have a tentative device selected. From the PC the unit should look like a usb drive with one 4 mega byte file on it and require no drivers other than what is in windows. I is to be a sports data logger.

Bob




You seem to be hung up on the data storage being a RAM chip.

Why ??

If this device will be portable, then some sort of battery will be required to "hold up the RAM" till it gets to the PC.

don
.

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