Data Logging from FPGA to PC

Altera_Forum · ‎01-04-2013

Hi !!!

I am still a newbie to digital world.

I wish to use the UART in SOPC to send some data to (RS485 interface) my laptop for logging purpose.

Laptop does not have a RS485 terminal so i am planning a RS485-USB converter.

Now if all this works i am lost as to how i must read the data on this using C or VB.

Kindly let me know the plan would work ??? if so how to read the data using C or VB ? i need some direction.

thanks

santhosh:confused::confused::confused:

Altera_Forum · ‎01-04-2013

Why RS485 and not RS232 or just the UART signals directly from the FPGA?

FTDI have a series of cables that you might be able to use. For example,

http://www.digikey.com/product-detail/en/c232hd-ddhsp-0/768-1011-nd/2767783

This cable can be connected directly to 3.3V logic level pins on the FPGA, and those pins can internally connect to a UART inside the FPGA.

At that point, you can use standard serial communications on your PC.

FTDI show RS485 connections in their data sheets, so they may also have pre-made cables that support RS485. Check out their web site www.ftdichip.com.

Cheers,

Dave