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Does UART is inbuild in FPGA

Is there UART in FPGA or whether UART has to be connnect externally..an how can we send information from FPGA through UART to Ethernet........ca anyone give guidence for writing coding either in VHDL or in Verilog fo sending information from FPGA to Ethernet through UART

Reply to
leenaselvam
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There is if you program one into it.

Could be.

You need a serial->Ethernet gateway of some sort.

You also need to get your '.' key fixed.

I'm sure somebody probably can.

--
Grant Edwards                   grante             Yow! ... this must be what
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Reply to
Grant Edwards

If you want to go to Ethernet why go through a UART? There are UART-Ethernet gateways but it might be better to interface an Ethernet chip to the FPGA. Altera has development systems with both UARTs and Ethernet hooked to the FPGA. The other major vendors probably have the same thing.

Andrew

Reply to
andrew queisser

FPGAs don't come with UARTs, but you can easily make an asynchronous serial interface on an FPGA. It's much easier (and uses less logic) to take the "universal" out of the UART and design for a fixed baud rate, data bits, start & stop length, etc.

You can also connect a UART externally, of course, although if you don't have a processor in your system already you may use more logic getting it initialized than you would rolling your own.

Now that's an interesting question. UARTs aren't remotely compatible with Ethernet, so if you really want to have asynchronous serial coming out of your FPGA and Ethernet coming off your board you'll need to get or make an interface. There are chips and sub-boards that you can buy that'll interface between Ethernet and serial; you could use one of those.

Yes:

  1. Understand all parts of the problem.
  2. Understand how to implement logic in Verilog or VHDL.
  3. Get cracking!

(1a -- learn all parts of the problem). (2a -- learn the HDL of your choice).

--
Tim Wescott
Control systems and communications consulting
http://www.wescottdesign.com

Need to learn how to apply control theory in your embedded system?
"Applied Control Theory for Embedded Systems" by Tim Wescott
Elsevier/Newnes, http://www.wescottdesign.com/actfes/actfes.html
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Tim Wescott

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