Help with 24 bit serial to usb connection

Thread Starter

PhilipH

Joined Apr 30, 2009
2
Hi,

I am trying to connect a 24 bit A/D converter(AD7732) to the computer.
I saw that PICs only support up to 16 bits on a serial line. This is not enough for my application.

Can anyone recommend a technique to connect the 24 bit A/D converter(which has a 24bit SPI or serial interface) to the computer?

Thanks!

Philip
 

AlexR

Joined Jan 16, 2008
732
The obvious answer is to send the data as 3 X 8 bit words.

What I am intrigued about though is what could you possibly be measuring that needs 24 bit precision? That's 16 odd million discrete levels.
 

Thread Starter

PhilipH

Joined Apr 30, 2009
2
"What I am intrigued about though is what could you possibly be measuring that needs 24 bit precision? That's 16 odd million discrete levels. "

It is to measure how nosey you are.









Lol jk. Its for extremely precise temperature measurements. Thanks for the reply.
 

Papabravo

Joined Feb 24, 2006
21,159
Hi,
....
I saw that PICs only support up to 16 bits on a serial line.
...
This is simply not true. You should be more careful with your information sources. In addition, the number of bits on a serial link has nothing whatever to do with a USB connection. That is a completely separate issue.
 
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