TC66C-a powerful Type-C USB tester

for PC software, we just finished yet, but we did not let our foreign friend to help me test first , we have tested, I would like let others test again
if you want to , you can help me test … this is file https://drive.google.com/open?id=1pX_YLL6HNbpq8rhjxmB_QnTtyyCZedur

Thanks for the software; I will provide feedback later after I have tried it out.

On my Lenovo laptop with a USB-C PD charger, the Quick Charge Detection screen shows the correct 20V and 2A operation but QC2.0 as the Quick Charge protocol instead of USB-C PD. Why?

In fact, running Protocol Detection against the charger correctly shows it is USB-C PD only.

The PC software wants me to update the firmware but won’t update successfully

Dialog box

for this problem, in our user manual, there is note: D+ and D- value are just reference, not very accuracy. The product will automatically identify a device with a supported fast charging mode. At this time the device supports the QC2.0、QC3.0、APPLE 2.4A/2.1A/ 1A/0.5A、Android DCP、SAMSUNG.(Note: This quick charge agreement recognition model is not complete and for reference only, we will add other protocol in the future)

now don’t update , we did not add updated things , now please uninstall the software and install it again to check the function and operation

Hi friend
don’t update it now, because we did not add the update things .
now please uninstall the software and install it again to check normal function and operation

I uninstalled/reinstalled and everything seems to be working though it did pop up dialog boxes to install new software and new firmware.

Are you planning to implement something like the K2 long press function so I can operate the TC66C from the PC without touching the device?

It might be better if you leave that part of the screen blank or if you don’t recognize the quick charge protocol instead of an incorrect one.

Which charger do you have?

If I remember well, some USB-PD devices actually use QC 2.0/QC 2.0 Type B charging to achieve higher power levels using Qualcomm ICs.

It may be that your charger actually uses USB-PD over QC 2.0/3.0 Type B, which can reach 20V at 5A.

our protocol is identified by D+ and D- data, This quick charge agreement recognition model is not complete and for reference only, we will add other protocol in the future)

Lenovo 00HM633 that was bundled with the Lenovo Yoga 720 laptop

Here is the output of the protocol detect function (I have been unsuccessful at embedding the image in my post)

Screen capture

Seems like it’s actually working though, as it is showing USB-PD being active.

detection is right , it is detection by CC wire, but fast charge identity is by D+and D- value

Right.

I was thrown off by the Lenovo specification saying PD, the TC66C detecting that it was a PD charger but then saying QC2.0 when actually charging.

detection is right , it is detection by CC wire, but fast charge identity is by D+and D- value.
D+ and D- value are just reference, not very accuracy. The product will automatically identify a device with a supported fast charging mode. At this time the device supports the QC2.0、QC3.0、APPLE 2.4A/2.1A/ 1A/0.5A、Android DCP、SAMSUNG.(Note: This quick charge agreement recognition model is not complete and for reference only, we will add other protocol in the future)

RT tech,

You have got me started on reading up on the use of D+ and D- values for various protocols, many of which are proprietary. One article with a very good explanation of QC 2.0 and QC 3.0 is Article

Do you expect to be able to implement detection of a protocol running on the CC wire in the future?

Today my TC66C arrived. Damn is it small if you see it side by side to a UM 25C. I like it!
But I hope they make a change in the Sotware. The UM 25C turns on the second you put in a device (so i can let it connected to the charger and see the current when i connect a device).
But not so the TC66. I have to manualy turn it on to see the values.

thank you for your support
UM25C is bigger than TC66C, for the welcome interface, I will consider

Thanks RD tech! At the moment i use the TC66C mainly to check the current draw of my QI wireless charger. It helps to find the best position on the charger.
But like i said it would help if it would automaticly turn on.

And can we logg the data when using the PC software?

thank you ,I am so happy that you like it
like i said it would help if it would automaticly turn on.—— I don’t understand
yes, you use the PC software to log the data