ODYSSEY – STM32MP157C Evaluation Board problem

Products & Technology ODYSSEY Serials
#1

Hello,

I’m trying to use a USB device with an STM32MP157C development board.

However, it didn’t work with the below msg.

(picture 1)

picture1.PNG

I found that error codes are printed when there is a kind of power problem.

After that, I boot the device connecting the serial port with my PC’s console.

I could find a Warning msgs like this.

usb 1-1: device descriptor read/64, error-32

I tried to replace the power source including the USB-C type, but the same msg printed

How do i solve this problem?

Thanks.

Best regards. Jo

#2

Your picture doesn’t seem to show.You can provide more information about kernel dmesg, I can help you.

#3

picture1
Here is an error message.
(WARNING 500mA power supply detected Current too low, use a 3A power supply!)
Thanks.

#4

I recommend using a debug serial port to connect it.This warning message simply prompts the user to use a better DC power supply.

#6

When I put my communication module to usb-A or C, it comes out with this message to serial port.

usb 1-1: device descriptor read/64, error-32

When I connect usb module to other linux devices, it recognizes as network interface and I can see it in ifconfig.
How can I fix it?

Thanks.

Best regards. Jo

#7

Is there a DMESG log? Let me analyze it for you.