Hello people, I'm curious to know is there anyone who have experience with DE2 board USB communication ? There is some ISP1362 USB-OTG controller which must be appropriate configured in order to communicate with USB device plugged into DE2 USB connector. Does anybody worked with this controller using VHDL programming language ? Is there a lot of problem to configure ISP1362 USB-OTG controller ? Thank you very much, Bojan

There are a number of ways that you can communicate via USB on the DE2 board.You can set up a Nios-II architecture in SOPC and add a JTAGUART. You can use the JTAGUART to communicate from the Nios-II to your PC On the CD-ROM that goes with the DE2 there is an example DE2_USB_API in the "DE2_emonstrations" Folder. See the DE2_UserManual.pdf section 4.14 "Using USB Host and Device".Hope this helps...

Thank you anyway... But there is no visible code for this examples, and USB controller is configured using Nios II processor. I want to use VHDL to configure controller. Regards, Bojan

Hi Koce, to build up your USB communication you will have to configure your Philips ISP1362 USB-OTG controller from your VHDL code. Given that a simple Nios-II only takes a few procent of the Logic Elements on your DE2, it is probably the easiest to realize your USB communication via a Nios processor and using a JTAGUART.

hello I am now working in a project which needs to make the DE2-70 board as a USB device and the host is the PC. I write some codes in vhdl to communicate with the ISP1362, because I can not to use the NIOS processor... When I try to probe the system, I found these problems: 1) If I connect both the blaster cable and the device cable to the pc or only the blaster, the host shows initially the blaster, then I download the firmware to the FPGA and the system do the Enumeration and initialization process and the ISP1362 is recognize by the host PC. But, if I disconnect the blaster cable, the system is not respond, then I reset the driver by the firmware and the device is doesn't show by the host. I am using the VISA USB Raw of National Instrument and its driver in the host. 2) If I work with both the blaster cable and the device cable connected, the system can transmit data from PC to device successful, but when I try to send data from device to host PC, it show me a timeout error. I check the firmware step by step and it apparently work correctly. Could you help me with these????

--- Quote Start --- But there is no visible code for this examples, and USB controller is configured using Nios II processor. I want to use VHDL to configure controller. --- Quote End --- Implementing USB host mode without a processor is very difficult. USB was designed for a processor managing the host. I'm not sure you would find a hardware-only USB-host core. Such a core would probably need almost as much resources as a NIOS II processor, possibly even more.

DE2 board USB communication | Altera Community

34 Replies

Altera_Forum
Honored Contributor
15 years ago
hi
i'm also communicating with PC-Altera DE2 by usb port...
and i also don't want to use the Nios II.

It's possibile to see the vhdl code??
Altera_Forum
Honored Contributor
15 years ago
Hello Arun, The file DE2_NIOS_DEVICE_LED.sof is a programming file. Its a compiled version of the file which you have to program in your kid. Just connect your USB cable and select file in your programmer and program the device. After the programming the kit should start working until you reboot or reset.
Altera_Forum
Honored Contributor
13 years ago
--- Quote Start ---
Hi Koce,

to build up your USB communication you will have to configure your Philips ISP1362 USB-OTG controller from your VHDL code. Given that a simple Nios-II only takes a few procent of the Logic Elements on your DE2, it is probably the easiest to realize your USB communication via a Nios processor and using a JTAGUART.
--- Quote End ---

Hello,

I have developed the code that configures ISP1362 in pure VHDL. Please find the code here:

http://mzakharo.github.com/usb-de2-fpga/
Altera_Forum
Honored Contributor
13 years ago
--- Quote Start ---
Hello,

I have developed the code that configures ISP1362 in pure VHDL. Please find the code here:

--- Quote End ---

Salute to Mzakharo, I'm trying to migrate your code in my own design.

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DE2 board USB communication

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