/products/raspberry-pi/b/blog/posts/raspberry-pico-as-usb-test-device-the-tinyusb-usbtmc-profileThere&#39;s a standard profile for USB test devices, called USBTMC. If your instrument supports it, it becomes a plug-and-play device for the likes of LabVIEW. The Raspberry Pico examples come with a set of TinyUSB profile examples, and USB...en-USTelligent Community 12https://community.element14.com/products/raspberry-pi/b/blog/posts/raspberry-pico-as-usb-test-device-the-tinyusb-usbtmc-profileThu, 09 Feb 2023 19:13:10 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0ada4df2-d2af-4336-bd0c-195902ed72baJan Cumps0<p>One of the advantages&nbsp;using USBTMC is that this Pico will enumerate identical to commercial instruments.&nbsp;</p> <p><img height="661" src="/resized-image/__size/1280x1322/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-0ada4df2-d2af-4336-bd0c-195902ed72ba/pastedimage1675969806846v1.jpeg" width="640" alt=" " /></p> <p>A Keithley&nbsp;meter, Rigol power supply and the Pico are connected. For LabVIEW (and PyVISA), they are immediately recognised as VISA instruments.</p><img src="https://community.element14.com/aggbug?PostID=25164&AppID=86&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/products/raspberry-pi/b/blog/posts/raspberry-pico-as-usb-test-device-the-tinyusb-usbtmc-profileTue, 31 Jan 2023 20:04:42 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0ada4df2-d2af-4336-bd0c-195902ed72baDAB0<p>Very useful tool.</p><img src="https://community.element14.com/aggbug?PostID=25164&AppID=86&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/products/raspberry-pi/b/blog/posts/raspberry-pico-as-usb-test-device-the-tinyusb-usbtmc-profileSun, 29 Jan 2023 22:52:21 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0ada4df2-d2af-4336-bd0c-195902ed72baJan Cumps0<p>One minute extra quality time, and I got it working:</p> <p><img src="/resized-image/__size/1280x720/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-0ada4df2-d2af-4336-bd0c-195902ed72ba/pastedimage1675032708989v1.png" alt=" " /></p> <p>I&#39;m attaching the current VSCode project to the blog</p><img src="https://community.element14.com/aggbug?PostID=25164&AppID=86&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/products/raspberry-pi/b/blog/posts/raspberry-pico-as-usb-test-device-the-tinyusb-usbtmc-profileSun, 29 Jan 2023 16:58:04 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0ada4df2-d2af-4336-bd0c-195902ed72baJan Cumps1<p>There&#39;s an existing example that matches the tinyusb with my favourite SCPI parser lib:&nbsp;<a rel="nofollow" target="_blank" href="https://github.com/kmatch98/tinyusb/tree/master/examples/device/usbtmc/src">github.com/.../src</a></p><img src="https://community.element14.com/aggbug?PostID=25164&AppID=86&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/products/raspberry-pi/b/blog/posts/raspberry-pico-as-usb-test-device-the-tinyusb-usbtmc-profileSun, 29 Jan 2023 16:02:08 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0ada4df2-d2af-4336-bd0c-195902ed72baJan Cumps1<p>Even Rigol&#39;s Ultra Sigma utility&nbsp;detects it:</p> <p><img height="152" src="/resized-image/__size/856x304/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-0ada4df2-d2af-4336-bd0c-195902ed72ba/pastedimage1675008062224v3.png" width="428" alt=" " /></p> <p>and can talk to it:</p> <p><img height="266" src="/resized-image/__size/1088x532/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-0ada4df2-d2af-4336-bd0c-195902ed72ba/pastedimage1675008034575v2.png" width="544" alt=" " /></p> <p></p><img src="https://community.element14.com/aggbug?PostID=25164&AppID=86&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/products/raspberry-pi/b/blog/posts/raspberry-pico-as-usb-test-device-the-tinyusb-usbtmc-profileSun, 29 Jan 2023 15:59:18 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0ada4df2-d2af-4336-bd0c-195902ed72baJan Cumps0<p>This example is very good. Watchwhat happens when I launch a SCPI *IDN? request from the LabVIEW testbed:</p> <p><img src="/resized-image/__size/1280x720/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-0ada4df2-d2af-4336-bd0c-195902ed72ba/pastedimage1675007919935v1.png" alt=" " /></p><img src="https://community.element14.com/aggbug?PostID=25164&AppID=86&AppType=Weblog&ContentType=0" width="1" height="1">