Hi,
We have bought the NUCLEO-H533RE board and I tried to power it via E5V by connecting the Arduino Minima R4 board 5V power output into E5V and GND signals in pins 6 an 8 respectively. I instantly noticed that the LED LD3 is lit with green, but the MCU got really hot. I would also like to mention that the Arduino board is powered by USB-C so, the output current from the 5V output pin in Arduino shouldn't be more than 500mA anyways.
Since then, I tried to get back to using the default 5V_STLK USB power supply, but LD4 starts flashing red rapidly, which indicates that the drawing current exceeded the 500mA. I measured the 3V3 and 5V pins on the board with ~0.28V and ~0.8V respectively.
I just would like to also mention that replaced the STM32H533RE MCU with STM32H523RET6 MCU.
Is there any reported fault on that board regarding connecting the the external power supply? Also Is it possible to power up the NUCLEO board from Arduino Uno Minima R4 by connecting it to the Arduino dedicated connectors (CN5 and CN6)?
Kind Regards,
Hani
