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USB interface of STM32F303 Nucleo-144 is not detected

Hello all,I want to use the Nucleo Board asmentioned above for sampling data with the ADCs and sending them with the USB interface to my PC. The problem is that the PC (Win 7) does not connect to this port. It doesnt appear in the device manager. Of ...

Bench by • Associate III
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STM32L4Sxx/STM32L4Rxx Support in OpenOCD

Hi,I am working on STM32L4+ (STM32L4S5xx) MCU, OpenOCD does not support L4+, https://sourceforge.net/p/openocd/code/ci/master/tree/src/flash/nor/stm32l4x.c has no support for device_id 0x470 - reported by STM32L4S5xx.There is a commit in OpenOCD und...

How to operate EMMC at 1.8V while my MCU is at 3.3V?

Looking at the eMMC requirement, it looks like HS-200 mode is limited to 1.8V/1.2V I/O levels. (From STM32H7 MCU Reference manual) HS200 Bus Speed ModeThe HS200 mode offers:• CLK frequency up to 200MHz Data rate – up to 200MB/s• 4 or 8-bits bus width...

STM32F4 ADC Scan conversion is not working.

Posted on March 20, 2018 at 16:09Hi,i have an ADC where i want to read multiple channels sequentially and than use this data. I read them every second or so, so i want to start the reading manually each time. But when its started it should read all ...

How to set Serial Handflow values in STM32L475VG

Hi AllWe have a custom board based on STM32L475VG. Can anyone please assist that how to set the _serial_handflow values for the usart2 of this chipset.Reference link for serial handflow -->> https://docs.microsoft.com/en-us/windows-hardware/drivers/d...

Resolved! STM32L4R9I-EVAL OctoSPI problem with 8bit access

Posted on May 19, 2018 at 22:56Hello,I am currently using the OctoSPI RAM on the STM32L4R9I-EVAL board (IS66WVH8M8BLL-100BLI (Hyperram)).At first sight everything looks as expected, but when I read and than write with 8 bit access, only every second...

s m by • Associate III
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Analogue input 40mv out.

Hi I am using a stm32L433 100 pin with an external 2.5v reference chip connected to vref+. I have tried placing a voltage (tried different values) onto one of the a/d channel, but the result is 40mv low. I then programmed the D/A , which uses the ...

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