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Comp.Arch.FPGA | How to comm with Altera JTAG UART (from custom host software)?
There are 3 messages in this thread.
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How to comm with Altera JTAG UART (from custom host software)? - Kolja Waschk - 2006-06-28 17:12:00
Hi, is there any way to communicate with software running on a NIOS2 SOPC through JTAG from custom software on a Host PC? maybe via JTAG UART etc... Would be nice if nios2-terminal provided a method to connect to the JTAG UART from own applications through Unix or TCP sockets, or something similar. Would be perfect if there was a public specification or source code example how to access a JTAG UART within a SOPC over JTAG? We currently design a device where a serial interface is used just for maintenance work. The same data could be exchanged via JTAG UART if only we knew how to access it from our own software (Piping to and from nios2-terminal isn't exactly what I'm looking for). Kolja -- mr. kolja waschk - haubach-39 - 22765 hh - germany fon +49 40 889130-34 - fax -35 - http://www.ixo.de______________________________
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Re: How to comm with Altera JTAG UART (from custom host software)? - The Big Lebowski - 2006-06-30 13:44:00
Kolja Waschk wrote: > Would be nice if nios2-terminal provided a method to connect to the JTAG > UART from own applications through Unix or TCP sockets, or something > similar. Would be perfect if there was a public specification or source > code example how to access a JTAG UART within a SOPC over JTAG? > Kolja, It's better to post these sorts of questions to the Nios Forum: http://www.niosforum.com/. Here's a link to a post that I found doing a quick search for "jtag_uart": http://forum.niosforum.com/forum/index.php?showtopic=4022&hl=jtag_uart It may not be exactly what you're looking for, but it should be a good start and, if you have any questions, the forum is generally pretty responsive. There's also a Wiki where you can find similar information, though I'm not sure that this, particular, topic is covered there: http://nioswiki.jot.com/WikiHome Best Regards, - Brendan______________________________
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Re: How to comm with Altera JTAG UART (from custom host software)? - Antti - 2006-07-02 09:33:00
Kolja Waschk schrieb: > Hi, > > is there any way to communicate with software running on a NIOS2 SOPC > through JTAG from custom software on a Host PC? maybe via JTAG UART etc... > > Would be nice if nios2-terminal provided a method to connect to the JTAG > UART from own applications through Unix or TCP sockets, or something > similar. Would be perfect if there was a public specification or source > code example how to access a JTAG UART within a SOPC over JTAG? > > We currently design a device where a serial interface is used just for > maintenance work. The same data could be exchanged via JTAG UART if only > we knew how to access it from our own software (Piping to and from > nios2-terminal isn't exactly what I'm looking for). > > Kolja > > > -- > mr. kolja waschk - haubach-39 - 22765 hh - germany > fon +49 40 889130-34 - fax -35 - http://www.ixo.de Hi Kolja http://www.altera.com/literature/ug/ug_virtualjtag.pdf have you checked the above document? Antti Get my Brain http://antti-brain.com