{"id":15188,"date":"2016-07-25T10:00:37","date_gmt":"2016-07-25T17:00:37","guid":{"rendered":"https:\/\/blog.digilentinc.com\/?p=15188"},"modified":"2021-06-16T14:01:09","modified_gmt":"2021-06-16T21:01:09","slug":"usb-functionality-on-our-boards","status":"publish","type":"post","link":"https:\/\/digilent.com\/blog\/usb-functionality-on-our-boards\/","title":{"rendered":"USB Functionality on Our Boards"},"content":{"rendered":"

USB, or Universal Serial Bus, is a very flexible connection being used for flash drives, cameras, and even phones. This flexibility allows us to use USB\u00a0as I\/O for our FPGAs<\/a>. Our boards\u00a0support a handful of uses for USB, and a brief explanation of each is detailed below.<\/p>\n

USB Power<\/strong><\/p>\n

\"USB-Power\"<\/p>\n

Perhaps the most passive use for USB is as a 5V 0.5A power supply. Many of our FPGA boards support being powered over USB for smaller projects, such as the Arty <\/a>for example. Some of our more powerful\u00a0boards, like the Genesys 2<\/a>, require more current than most USB ports can support. If this is the case see the Power section of your device manual\u00a0for alternative methods of powering the board in question.<\/span><\/span><\/span><\/p>\n

USB-UART Bridge<\/strong><\/p>\n

\"USB-UART\"<\/p>\n

UART is a very simple way to communicate with other devices. Nearly all of our FPGA boards implement a USB-UART bridge\u00a0for board-computer communication. This will make the board show up on your computer as a serial port (COM in Windows, TTY in Linux\/Mac). A thorough description of UART is available on the Digilent\u00a0reference site<\/a>. There are many libraries available for communicating over UART, pySerial is an\u00a0example for the Python programming language.<\/p>\n

USB HID<\/strong><\/p>\n

\"USB-HOST\"<\/p>\n

HID stands for Human Interface Device and refers to keyboards, mice, and other input devices. On some of our boards we have a dedicated microcontroller for reading from this type of USB device. The data is converted to a standard PS\/2 interface by this microcontroller for interpretation by the FPGA. More information on the PS\/2 interface used by the microcontroller is available on the Digilent reference site for all FPGA boards that have this functionality.<\/p>\n

USB OTG<\/strong><\/p>\n

\"USB-OTG\"<\/p>\n

USB OTG stands for USB On-The-Go and allows a device to act as both a host and a client depending on the device plugged in to the USB port. A handful of our boards support this protocol, including the Zybo<\/a>. If you are interested in using this port, official USB documentation is available here<\/a>.<\/p>\n

DSPI\/DPTI\/DEPP Using the Adept SDK<\/strong><\/p>\n

\"USB-Adept\"<\/p>\n

The Adept SDK<\/a> allows high speed data transfer over USB using either DSPI, DPTI, or DEPP. Currently DSPI and DPTI are only available on the Nexys Video<\/a> and Genesys 2<\/a>, while DEPP is only available on the Cmod S6<\/a>. For more information look into the Adept 2 SDK<\/a> documentation.<\/p>\n

Which USB functionality\u00a0do you use the most?<\/p>\n

0<\/span><\/a><\/div><\/div>
Be the 1st to vote.<\/div><\/div>
<\/div>","protected":false},"excerpt":{"rendered":"

Brandon provides a detailed overview of USB and what it can do with our FPGAs!<\/p>\n","protected":false},"author":43,"featured_media":15575,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false,"_ppma_block_editor_authors":""},"categories":[1563],"tags":[1662,1452],"ppma_author":[4494],"class_list":["post-15188","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide","tag-fpga","tag-guide"],"yoast_head":"\nUSB Functionality on Our Boards - Digilent Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/digilent.com\/blog\/usb-functionality-on-our-boards\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"USB Functionality on Our Boards - 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