Hey Quyen, 

all good, it was a wrong resistor. Works good now! 👍

Thanks, 
Cheers,
Tom

Hey Quyen, 

all good, it was a wrong resistor. Works good now! 👍

Thanks, 
Cheers,
Tom

Hey Quyen,

Is there a chance that Thunderbolt (Apple's superset of USB-C) has some specifics in regards of connecting Silabs CP2110 compared to standard USB-C specification?

Many thanks,
Cheers,

Tom

Hey Quyen,

Thanks for your reply!

• Re: 1, 2 — Attaching MacBook system info
• Re: 3 — I don't have a chance at this moment to try it with another Mac having USB-C.

Thank you,
Cheers,

Tomas

Hello,

I would like to ask for help. I am using CP2110 and USB-C connector on my device.

All works great on Mac if it is connected via a USB hub and the LED turns ON. However, the device is not recognized by MacBook when connected directly to the very same USB-C port as was used to connect the USB hub — the LED stays OFF.

Is there some specific CP2110 guidance or configuration for USB-C or devices using USB 3.1 or USB 3.0?

• CP2110 is USB 2.0 compliant. 
• USB 3.1 and USB 3.0 is backwards compatible with USB 2.0
• I tried to reset SMC and NVRAM  — did not help
• I tried to upgrade to from Catalina to BigSur — did not help
• I used in the past Silabs VCP drivers, and they are uninstalled — did not help

Any idea how might we make it work connected directly to Mac (without a USB hub)?

P.S. Attaching my system report screenshots to compare how it looks when connected via USB Hub or directly.

Many thanks in advance,
Cheers,

Tom

Hey Tony,

I don't have MCU. Could it be somehow emulated / workarounded using CP2110's UART?

Thank you,
Tom

Hey Tony,

I don't. Could it be somehow emulated / workarounded using CP2110's UART?

Thank you,
Tom

Hey Tony,

I don't have MCU. Could it be somehow emulated / workaround using CP2110's UART?

Thank you,
Tom