Well, that's a different matter, but not totally. I think you can use the on-board Flash from the expansion headers, but I'm not sure about that. If you can, I bet you have to remove one of the USB connectors.
The USB-to-serial converters that I like most are the ones with an FTDI chip on board. I use one personally for development/testing embedded boards, and I've been able to use a 4-in-1 up to 1Mbaud per port (and I really tried that once, from one port to another sending a file with xmodem using Windows Terminal, no problems whatsoever!) and it uses an internal USB hub chip. So making a board out of those chips is a little work but I don't think it's more work than putting UARTs on a board. As far as the UARTs go, I don't know. You'd have to think about the bus connection and what chips to use and how to do the interrupts and so on... Perhaps an idea for an experiment: use the Fox VHDL and build a number of UARTs in FPGA! I don't see why that wouldn't work.. Dave Charles Hampson <[EMAIL PROTECTED]> wrote: Thanks Dave, Will I still have to use the USB connector on the fox board, or is there someway to connect to the USB via the jumper connectors? (I plan to make a motherboard PCB that the fox board will sit on.) Charlie. ----- Original Message ---- From: Dave Van den Eynde <[EMAIL PROTECTED]> To: [email protected] Sent: Tuesday, February 12, 2008 1:53:17 PM Subject: Re: [foxboard] External UARTs I think you should reconsider. There are USB-to-serial converters with 4, 8 and 16 ports available off the shelve. 12Mbps will go a long way when you need 16x115kBaud. Dave Charles Hampson <charlie_hampson2@ yahoo.com> wrote: Hello, I am building a project that needs multiple serial ports, and I don't really want to use the serial to USB converters, as they are not really suited to having more than 1 port. I noticed in the build options that there is an option for the 16550 UART support, does anybody know how I could connect serveral of these to the Fox board? Many thanks! Charlie. --------------------------------- Never miss a thing. Make Yahoo your homepage. --------------------------------- Never miss a thing. Make Yahoo your homepage.
