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utmi to ulpi by leofrance on Jan 22, 2013			leofrance Posts: 3 Joined: Jan 14, 2013 Last seen: Feb 4, 2013
hello all, I'm recently working on a project using usb function controller which i found here(USB1.1 and 2.0). Problem is that i don't have much pins for the utmi interface, so i wonder if i can make it into ulpi interface. Can I transform the utmi to ulpi by simply adding a wrapper? if yes, how? if not, is there any other solution that can reduce the number of pins? thx for your help, i really appreciate it . hello all, I'm recently working on a project using usb function controller which i found here(USB1.1 and 2.0). Problem is that i don't have much pins for the utmi interface, so i wonder if i can make it into ulpi interface. Can I transform the utmi to ulpi by simply adding a wrapper? if yes, how? if not, is there any other solution that can reduce the number of pins? thx for your help, i really appreciate it .

RE: utmi to ulpi by leofrance on Jan 22, 2013			leofrance Posts: 3 Joined: Jan 14, 2013 Last seen: Feb 4, 2013
problem solved. there is a free core using ulpi offered in QSYS Altera. problem solved. there is a free core using ulpi offered in QSYS Altera.

RE: utmi to ulpi by dghadiya on Jan 23, 2013			dghadiya Posts: 2 Joined: Dec 27, 2011 Last seen: Jul 22, 2014
Could you provide me such link that where you find the ULPI core interface? Could you provide me such link that where you find the ULPI core interface?

RE: utmi to ulpi by dghadiya on Jan 23, 2013			dghadiya Posts: 2 Joined: Dec 27, 2011 Last seen: Jul 22, 2014
[q]problem solved. there is a free core using ulpi offered in QSYS Altera.[/q] could you let me know where you find this core? problem solved. there is a free core using ulpi offered in QSYS Altera. could you let me know where you find this core?

RE: utmi to ulpi by leofrance on Jan 23, 2013			leofrance Posts: 3 Joined: Jan 14, 2013 Last seen: Feb 4, 2013
[q]Could you provide me such link that where you find the ULPI core interface?[/q] It's just in the QSYS IP list, category SLS. but to use this ip, you need to require a opencore plus licence through a web link of SLS. it's a opencore plus evaluation licence, and i don't think we can use the core for commercial purpose. little boring = =! Could you provide me such link that where you find the ULPI core interface? It's just in the QSYS IP list, category SLS. but to use this ip, you need to require a opencore plus licence through a web link of SLS. it's a opencore plus evaluation licence, and i don't think we can use the core for commercial purpose. little boring = =!

RE: utmi to ulpi by ravivlsiii on Feb 15, 2013			ravivlsiii Posts: 45 Joined: Jul 4, 2008 Last seen: Feb 8, 2014
For which purpose you need this core? Reply to me on ravilife4rohit@yahoo.com Thanks, Ravi For which purpose you need this core? Reply to me on ravilife4rohit@yahoo.com Thanks, Ravi

RE: utmi to ulpi by richard_vlamynck on Jul 16, 2013			richard_vlamynck Posts: 31 Joined: Sep 15, 2008 Last seen: Jan 24, 2016
Hello, Yes, you can create a ULPI wrapper from a UTMI Interface. ULPI is a Standard Interface "subset" specified by the overarching UTMI+ Standard Interface. Ensure that for your wrapper you are writing synthesisable RTL with tight timing constraints and any clock domain crossing issues addressed and verified. You should do your own research for your wrapper by downloading the specification whitepapers from the USB Integrators Forum (www.usb.org), and by using google for "utmi and ulpi" and then you should look at the timing and the signals and the busses you need to implement. Here is one pointer to get you started: www.ulpi.org/utmiplus_whitepaper.pdf When you write your own wrapper, don't forget that it's always best to write your testbench before you write the implementation. Even better, get a colleague to write the testbench while you write the implementation. Good Luck, Richard. Hello, Yes, you can create a ULPI wrapper from a UTMI Interface. ULPI is a Standard Interface "subset" specified by the overarching UTMI+ Standard Interface. Ensure that for your wrapper you are writing synthesisable RTL with tight timing constraints and any clock domain crossing issues addressed and verified. You should do your own research for your wrapper by downloading the specification whitepapers from the USB Integrators Forum (www.usb.org), and by using google for "utmi and ulpi" and then you should look at the timing and the signals and the busses you need to implement. Here is one pointer to get you started: www.ulpi.org/utmiplus_whitepaper.pdf When you write your own wrapper, don't forget that it's always best to write your testbench before you write the implementation. Even better, get a colleague to write the testbench while you write the implementation. Good Luck, Richard.

RE: utmi to ulpi by Naaga on Dec 31, 2013			Naaga Posts: 1 Joined: Nov 19, 2012 Last seen: Jan 1, 2014
[q]hello all, Now I am working on ULPI-UTMI wrapper(USB 2.0). My question is how to make stp signal HIGH from UTMI interface mean am asking number of possible ways to make stp signal HIGH. and at the same time if you know any website from which I can get full spec this wrapper please send me the details.. hello all, Now I am working on ULPI-UTMI wrapper(USB 2.0). My question is how to make stp signal HIGH from UTMI interface mean am asking number of possible ways to make stp signal HIGH. and at the same time if you know any website from which I can get full spec this wrapper please send me the details..

RE: utmi to ulpi by vr5 on Jan 5, 2014			vr5 Posts: 1 Joined: Sep 20, 2012 Last seen: Apr 15, 2019
Hi, All! there is free open source vhdl utmi-ulpi bridge implementation at: http://vr5.narod.ru/fpga/usb/index.html vr5 Hi, All! there is free open source vhdl utmi-ulpi bridge implementation at: http://vr5.narod.ru/fpga/usb/index.html vr5

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