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google-coral / coralmicro

Source code for Coral Dev Board Micro
Apache License 2.0
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Coral Micro with WiFi not able to flash again #74

Closed bogdannedelcu closed 1 year ago

bogdannedelcu commented 1 year ago

Description

Hello,

I managed to write face detect sample on the board. Now sometime it boots sometime it hangs but I cannot reflash again.

This is the log I see in the serial attached to the RX/TX pins. I use a CP210x UART bridge

Multicore Model Cascade!
failed to read back country, returning default
WLAN MAC Address : 24:CD:8D:68:3E:8C
WLAN Firmware    : wl0: May  2 2019 02:46:20 version 7.45.189 (r714228 CY) FWID 01-105ab14e
WLAN CLM         : API: 12.2 Data: 9.10.136 Compiler: 1.29.4 ClmImport: 1.36.3 Creation: 2019-05-02 02:31:24

I tried both reset procedures but the board is not detected in my Ubuntu. there are no Coral or other devices detected in the lsusb command.

When I enter in the flash mode there is no log in the serial console.

I tried to connect the board on Ubuntu and Windows 10, I changed multiple USB cables to check but it seems it is not detected. $ uname -a Linux bogdan-ThinkPad-X240 6.2.0-32-generic #32~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Aug 18 10:40:13 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

Is it possible to flash the board usinf the Serial console?

Thank you, Bogdan

Click to expand! ### Issue Type Support ### Operating System Ubuntu ### Coral Device Dev Board Micro ### Other Devices _No response_ ### Programming Language Other ### Relevant Log Output ```shell Multicore Model Cascade! failed to read back country, returning default WLAN MAC Address : 24:CD:8D:68:3E:8C WLAN Firmware : wl0: May 2 2019 02:46:20 version 7.45.189 (r714228 CY) FWID 01-105ab14e WLAN CLM : API: 12.2 Data: 9.10.136 Compiler: 1.29.4 ClmImport: 1.36.3 Creation: 2019-05-02 02:31:24 Multicore Model Cascade! Multicore Model Cascade! failed to read back country, returning default Multicore Model Cascade! failed to read back country, returning default bogdan@bogdan-ThinkPad-X240:~/coralmicro$ lsusb Bus 001 Device 002: ID 8087:8000 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 005: ID 5986:0268 Acer, Inc SunplusIT INC. Integrated Camera Bus 002 Device 004: ID 8087:07dc Intel Corp. Bluetooth wireless interface Bus 002 Device 040: ID 138a:0017 Validity Sensors, Inc. VFS 5011 fingerprint sensor Bus 002 Device 042: ID 0bdb:193e Ericsson Business Mobile Networks BV N5321 gw Bus 002 Device 049: ID 10c4:ea60 Silicon Labs CP210x UART Bridge Bus 002 Device 048: ID 1a40:0101 Terminus Technology Inc. Hub ```
bogdannedelcu commented 1 year ago

USB-C cables are the cause. Found a thicker and shorter one which works fine.

google-coral-bot[bot] commented 1 year ago

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