STM32 MCUs Boards and hardware tools

resistor details

my question is in STM32F407VGT6 , LPQF100, resistor R26,R27, R28 is N/A and 0..what does it mean exactly i.e.,one resistor R26 N/A is connected to VDD and another resistor R27,R28 is connected to VSS(99pin)..and second question is does VSS has a supp...

Hello, what is the difference between st-link and j-link and what is the relationship between JTAG/SW and them?

Why am I getting only 1v from 3v3 when I unplug ST-LINK

When developing I'm using the ST-LINK to transfer my code to the stm32. All is well when it is plugged in but I'm only getting 1v from the 3v3 pin when I disconnect and run from usb. 5v is still 5v.I've connected an hx711 with a load cell and also a ...

After I change option byte on stlink, swd (stlink) is not connected.

Dear all~After I change option byte on stlink, swd (stlink) is not connected.read out protection : level 2 , BOR Level : level 3After not connect. pop up​Let me know how to recover option byte. ​Thanks​

Dear ST staff, I am using the nucleo board STM32L476RG to flash a STM32L476ZGT6. I once wrongly connected the SWD pins. I am now only able to erase the microcontroller flash: I cannot flash the microcontroller again. Do you have a clue?

Note:The hardware is still functional, I made sure of it.

Can I use STLINK V2 to program STM32H743ZI ?

Does STM32H743ZI support programming through STLink v2? In Nucleo-h743zi2 STLink v3 is provided.

IS USART PIN OF STM32F103RDT6 IS 5V COMPATIBLE?

Hi Team,We are using STM32F103RDT6 MCU, for connecting 5V RS485 transceiver to the MCU. We used (PIN no 16,17) USART2(RX-PA3,TX-PA2)and one GPIO (PIN no 15) pins of MCU. Kindly clarify the below points1. From the datasheet,it shows all pins are 5V to...

INot a genuine st device. Abort connection

I use an STM32F7805-DK and a Keil IDE and have been working well for a month. Suddenly, I get Not a Genuine ST Device. I installed Keil on a second computer and bought a 2nd STM32F7805-DK but get the same result. What can I do... the drivers on the P...

Design of ST hardware

I want to design hardware with STM32G071RBT6 micro-controller, i have basic design circuit but i want to build strong power supply with reverse polarity protection and industrial noise free hardware. please provide me solution for Hardware design.

Can I use CAN and USB pin only if USB plugged in?

Hello,I am using STM32F103 for my project and it requires CAN most of the time however if a USB connector is plugged in, it should behave like a virtual COM port. CAN_R and CAN_T pins are connected to PA11 and PA12together with USB_DP and USB_DM pint...