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How to tone down a signal in ST board?

Posted on August 24, 2017 at 17:56Hi community,A lot of sensors output go from 0 to 5V. But the ADCs on Nucleo Boards have a 0-3.3V range. The solution is to use some external resistors to reduce the input of the ADC.Is there another solution withou...

S25FL127S QSPI problem with STM32F746

Posted on August 13, 2016 at 01:07Hello ST Forum,I have a problem related to the QSPI with STM32F7xx, details as the following:I have a STM32F746G-DISCO board, I run on it he code “QSPI_ReadWrite_IT�? found in “STM32Cube_FW_F7_V1.4.0�? the results w...

USBLC6-2SC6 ESD wont protect

Posted on August 24, 2017 at 09:47HiWe have a device which is an USB powered(USB2.0), and on the same USB port is the communication with the PC.So it is powered from the PC.For the ESD protection of the USB lines we add the USBLC6-2SC.Our processor ...

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Resolved! STM32F746 QSPI strange behavior

Posted on August 22, 2017 at 04:23I'm experiencing strange behavior of QSPI peripheral (or may be flash chip itself -- N25Q128 in SO8; chips are not shiny new, but never used; datasheet Rev. 8 July 2014): despite what is stored in NVCR/VCR registers...

STM32F0 CAN Stops communication

Posted on August 16, 2017 at 21:39Hello,I'm working with STM32F0 and CAN communication, sometimes the CAN peripheral stops, doesn't send or receive messages.In the past I asked the same issue and the answer was that it could be the HAL_LOCK funtion ...

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PA9 as VBUS sense of USB_OTG_FS (STM32F407)

Posted on August 24, 2017 at 15:33I played with PA9 on a DISCO-F4 board in its OTG_FS_VBUS function. This is a non-AF function, i.e. it's connected to PA9 all the time, and is supposed to be governed by USB_OTG_FS settings. I am not interested in OT...

STM32F7 HAL CAN Receive interrupt only once

Posted on January 25, 2017 at 20:33I seem to have an issue with receiving CAN messages.  It is set up on an interrupt, but the interrupt only seems to fire once, and when I receive the 2nd message, nothing happens.  There seems to be very little on ...