STM32 MCUs Boards and hardware tools

the windows computer recognized the st-link v2 as universal serial bus instead virtual port

Hi.After firmware upgrade for st-link v2, windows computer recognized the st-link as universal serial bus instead of virtual com port. whenever i try to program to MCU, there is error like a "No target device found".How can I solve it?Below image is ...

STM32 Discovery and 5V logic

Hii hope im asking my issue in the right placeso i have developed a pcb board with 70 TLC5947 ic's in cascading sequence, however im having an issue with using my STM32 discovery board to turn on LED's. the Ic's are powered by 5V and when i use my ar...

Is it possible to use the generated 1.2 V of SMPS for another IC, in STM32H7 with the direct SMPS supply configuration?

I want to design a board that has an STM32H7 with internal SMPS and an SSD2828 which needs 1.2 V too.I'm wondering if it is possible to use the internal SMPS of the microcontroller to produce the 1.2 V for Vcore like the below picture and also use th...

Why can't VDD-USB be tied to voltage derived from USB VBUS, even when VDD is OFF? If they need to be tied together, than the USB will disconnect every time VDD is OFF and will need to be re-connected. It should maintain this connection when VDD is OFF.

Does the STM32L072VBT6 or STM32F072VBT6 not allow for the USB connection to function, even when VDD is OFF?

stm32f401re channel

Here are the stm32f401re schematics and pinouts. I want to see the timer in channel 1 and use that timer to cooperate in the PWM channel. There are no timers other than channels 1 to 4. However, I only see pwm channel on channels from 5 to 9. How can...

Choose connector and Ethernet Transceiver for MCU ethernet interface.

Hi, I need to add an ethernet interface to a STM32H745IIT6 MCU. I have to choose the RJ45 connector and the Ethernet Transceiver chip.I state that I've never done this thing, so my idea was to take the Nucleo board schematic and use the same connecto...

the component LAN8742AI-CZ LAN use in your design board is very difficult to buy. Do you have an alternative?

I don't want to use USB Enumeration as a storage found in PC and want to work with Keil IDE

 hi, As per the attachment shown, When I connect the Nucleo stm32f411 board, I dont want NOD_F411RE (D:) Drive to come , I just want to see its debugging and upload code interface only with Keil IDE. So need support on how to remove it.  Thanks,Sid_C