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Mysterious pads on Nucleo64 and Nucleo144

Posted on May 02, 2016 at 15:12A Nucleo144 landed on my desk. As with every new board, there has been a stare-and-criticize session, and somebody noticed four pads at the four corners of the chip, at a 45 deg. angle. They are roughly of 0805 size an...

adc sampling time and synchronization

Posted on May 02, 2016 at 11:03hi I have problem with adc sampling and controller calculating at each period of sampling(each sampling time) .I fond this from st,com . I have some  questions : 1.what is the meaning of first line exactly and how I ca...

AN4661

Posted on May 02, 2016 at 08:34Hi, in chapter 1.1.4 of AN4661 is descriped that if DSI is not used at all then: ''The VDDDSI pin must be connected to global VDD'' There is also written: ''The VDDDSI pin must be grounded.'' Is this a typo? What is c...

sascha23 by Associate II
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  • 1 replies
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STM32F439 - Undershoot on FMC pins

Posted on April 19, 2016 at 17:38Hello, We are using the STM32F439 in our application.While using the simulation with IBIS model (Hyperlynx), we have discovered undershoots on FMC pins.The voltage in undershoot is about -866mV and the current limit ...

eli_az by Associate II
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STM32L4 Discovery CubeMX USB Host Audio callbacks

Posted on May 02, 2016 at 04:09I am using the latest STM32CubeMX (V4.14) and the latest version for the STM32L4 family (version number escapes me right now) and I am trying to understand how to properly use the Discovery board to act as a USB Audio ...

STM32F030 ADC frustration

Posted on October 28, 2015 at 14:57Hello everybody, with this code, no matter what I do, I always get 4095 (max). I've tried looking at Clive examples or IAR's examples I just can't see it. Could someone take a look and see what am I missing. I need...

matas by Associate II
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  • 7 replies
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Issues with composite VCP+MSC: VCP not working

Posted on May 01, 2016 at 17:49Hello, I am stuck in implementing USB composite (VCP+MSC) using FS-Device_Lib_V4.0.0 (STM32L151). Individually both works but when I try composite VCP+MSC, MSC works well but PC can't communicate via VCP (although it c...

rumlyen by Associate II
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  • 2 replies
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