2025-06-05 10:51 PM - edited 2025-06-05 10:53 PM
Hi ST,
I have flash the Android images(st-android-13.0.0-2024-07-31-stm32mp257f-ev1-emmc-starter) on the STM32MP257-EV1.
When booting the board(power supply by 5V3A adapter), the leds light as this status,is the board working normally?
When the board booted and CN15 usb connected with PC , I found the device manager show the "Android aosp on stm32mp257f-ev1".When CN21 usb connected with PC, device manager shows up nothing new at all
The board was booting normally?If it is the normal status, how can I connect the terminal to the STM32MP257-EV1 on the host computer?
2025-06-05 11:21 PM
Hi, @faye_Lee
If terminal is available (I'm sure for OpenSTLinux on EV1, Android should be same I assume), it should be available in one of the two virtual COM ports which should appear on the PC when connected to the ST-Link USB CN21.
Some help regarding terminal here (shown when running OpenSTLinux): https://wiki.st.com/stm32mpu/wiki/Getting_started/STM32MP2_boards/STM32MP257x-EV1/Let%27s_start/Execute_basic_commands
Regards.
2025-06-06 12:05 AM
Hi PatrickF,
When I first boot the board, there were two virtual COM ports appeared on the PC when connected to the ST-Link USB CN21 (STM32MP257-EV1's defualt image is OpenSTLinux?). But the second time I booted the board, there were no virtual COM port appeared on the PC. And then I flash the Android image on it, and it has no virtual COM port too. I wonder if my STM32MP257-EV1 board has some issue? How can I verify my STM32MP257-EV1 board whether work in normally status or not? Should I flash the default OpenSTLinux image? How can I flash the default OpenSTLinux image.
2025-06-06 1:08 AM
Hi,
Board STLINK virtual COM ports are completely independent of flashed image (it could be seen as an external Serial<->USB converter, like it is for an external ST-LINKV3-SET). They work as soon the USB is connected and recognized correctly as a valid USB.
Maybe check your USB cable (sometimes, there is USB charging cables without data lines).
Regards,