Honored Contributor
Honored ContributorHi,
I'm still a bit in favor of a combination between USB and uart --> the USB to serial converter. It's cheap, easy to implement, and if you combine it on your board with the fpga, you don't need the RS232 level converters, so you can use higher speeds (1Mbit for example). ALso the interfacing with the PC goes through a COM-port interface, so it is easy, no dll's to add... Even when you can not change your hardware board to add the FTDI-chip, you can use it. Take a standard USB-RS232 converter, open it, remove the level converter and connect it TX, RX and ground directly to some logic inputs (watch out for the correct signal levels). Note, because of using logic signals, place the systems close togheter. A good idea can also be to use an isolated USB-serial converter, this removes the ground connection between your system and the PC. Stefaan
