Apr 5, 2016 · The "Recognized Component Mark" is a type of quality mark issued by Underwriters Laboratories. It is placed on components which are intended to be part of a UL listed product, but which cannot bear the full UL logo themselves.[6] The general public does not ordinarily come across it, as it is borne on components which make up finished products.

May 30, 2017 · The UR mark is used for components of products that would need a UL product listing. When a product made with UR recognized components is submitted to UL listing, UL does not need to investigate the components in detail but only review their use in the final product, the manner of final construction etc. UL listed panel shops construct certain ...

Sep 15, 2020 · Note that the EEC capacitor does not appear to be a UL-recognized component; the original All-Earth is (the backwards UR logo on the bottom-left of the silkscreened area). I recommend you ensure your replacement parts are UL-recognized for safety reasons.

Mar 9, 2017 · \$\begingroup\$ @Joe, yes, and I looked at several data sheets trying to find the logo on the left, to no avail. \$\endgroup\$ – Don Wakefield Commented Dec 24, 2013 at 0:44

Apr 4, 2023 · 10:48:33 : UR connection mode is defined with the HWrst reset mode 10:48:33 : Error: Establishing connection with device failed. What I tried: I set the BOOT0 Pin, High, like Phil's Lab says in his video. And then reconnected the board to the power. I also tried multiple ways of connecting. But nothing really worked.

The weird symbol indicates its a DC output. This laptop adapter supplies an output voltage of 19 V and a maximum output current of 3.42 A, well above your original adapter's 2A maximum.

Jan 31, 2021 · I've been working on a problem with two different boards (one using an STM32F7 and the other using STM32F3). When attempting to program the boards (using an ST-Link provided on Nucleo/Discovery bo

Jan 2, 2016 · \$\begingroup\$ I independently discovered this in real life, as have many people. Anecdotally this seems to have been common with CRTs, both monitors and TVs, perhaps because of the form factor, popularity of these objects, and something in the electronics that made this method work - hypothetically like unseated chips, soldering issues etc.

Jun 22, 2022 · "C:\Program Files\STMicroelectronics\STM32 ST-LINK Utility\ST-LINK Utility\ST-Link_CLI.exe" -c UR FREQ=80 -ME -P "C:\Usr\someHex.hex" 0x08000000 -V -TVolt. Although it is showing that the process has completed and flashed the program. I can not see anything when I manually connect to the STM32 ST-Link Utility.

Apr 10, 2021 · The circuit below is used to flash firmware to a microcontroller. There is a Micro-USB port on the PCB used to connect to a host computer. The USB lines (D+, D-, etc.) then go through a bridge chip (