what is U2A/U7A?
what is U2A i see in top of the schematics?What is the diffrent between U2A and U7A? thanks
Forum Posts
Resolved! 6 out of 11 boards eventually reset right after starting.
I have 11 boards of our prototype with the STM32L4A6AGI6 (i.e. 169 BGA) assembled. 5 of them work fine. The other 6 eventually loose debugging connection. It doesn't happen immediatelly i.e. I'm still able to run a few lines of code but then it reset...
Resolved! Missing I/Os, schematic errors on NUCLEO-U575ZI-Q
NUCLEO-U575ZI-Q is based on a STM32U575ZIT6Q in LQFP144 package. A diagram on page 98 of the datasheet shows PC5 (pin 45), PB12 (pin 73), and PC4(Pin 44). None of these I/Os are exposed on the connectors of the NUCLEO-U575ZI-Qhttps://www.st.com/res...
Resolved! What should be RCC configuration as it is failing in initialisation?
I am using custom designed board having STM32H745BIT6 and 25MHz external crystal with LDO and SMPS pins connected as seen in attached snippet.I have created, compiled new STM32 project using CubeIDE and CubeMX software for LED blinking.Attached .IOC ...
STM32L431 can not be debugged; SWD communication failure?
Hello all,I am using STM32L431 in this project, and I have made a prototyping board for it. However, the MCU will not communicate with the debugger.Below is MCU part of schematic:Only SWDIO and SWCLK are connected to the debugger. The MCU is powere...
STM32L4P5 FT pins tolerant up to 5V even if supplied power to STM is 1.8V?
I have STM32L4P5CGU6 (48 pin).Pins PB5, PB4, PB3, PA15 are used as SPI1 with another IC which has 3.3V levels.As well as PB6, PB8, PB9 as custom input GPIOs with voltage levels of 3.3V.VDD (pin #9, pin#24, #48) -> 1.8VThey all seem to work fine, howe...
Resolved! How to connect a battery to a STM32F429ZI DISCO board ?
Hello,I have a STM32F429ZI DISCO board and I want to connect it to an external supply but I don't know wich pins I have to connect. Vdd on 3.3V ? or 5V pin ? or 3V pin and 5V pin ? or all of them ?Any one can help me to connect my board ?Thank you !
ST-LINK GDB server doesn't work with new IDE,
OpenOCD works, but it's glitchy and has some errors. Before upgrading to STM32CubeIDE 1.8.0, ST-LINK used to work. Upgraded to STM32CubeIDE 1.9.0 and it seems to be failing the same way.The MCU is an STM32L552RCT6.Tried different frequencies for SWD,...
Resolved! I use a project on stm32g070 and cubeide but i have a problem before start the project, to connect the board it say : no device found on target
any help with this problem? thanks