[Wedge100BF-series] cp2112 Error Follow

Purpose:

This is the troubleshooting guide for the cp2112 Error on Wedge100BF-series.

Example symptoms:

cp2112 0003:10C4:EA90.0001: Transfer timed out, cancelling.
cp2112 0003:10C4:EA90.0001: Transfer timed out, cancelling.
cp2112 0003:10C4:EA90.0001: Transfer timed out, cancelling.

cp2112 0003:10C4:EA90.0003: Error starting transaction: -71
cp2112 0003:10C4:EA90.0003: Error starting transaction: -71
cp2112 0003:10C4:EA90.0003: Error starting transaction: -71

Model:

Wedge100BF-32X/65X/32QS

Procedure:

Step 1. Check SPI flash and upgrade.

Article : SPI Flash Firmware version checking and upgrade

Step 2. Start up Accton Diag and Test Diag item 4

[Note] This test need to use Diag, some NOS is not compatible with Diag since they required whole space.

Article : [Wedge100BF-series] Install and start up Accton Diag, Barefoot Shell and SDE 

root@bfn-switch:~/DIAG-V0.34# diag_main.py

Initiating Accton Diag Environment is PASSED(0)!
Please enter your choice (0 to quit):
*********************************************************
(..omitted)

4 The probe test cp2112 for usb-to-i2c bus

(..omitted)
*********************************************************
Please enter your choice (0 to quit): 4
The bus test for cp2112 is PASSED!


Item (4) test result: PASSED

If the test result got FAILED, please collect the test logs and report to us for RMA repair service.