USB EZ-PD™ Type-C Forum Discussions

Hi Cypress community,

We have a host CCG3PA PD controller (DFP) connected to a second (UFP) PD controller via a USB-C cable with an embedded  EMCA chip (CMG1). Normally, when the CCG3PA is plugged into the UFP PD controller with this cable, CCG3PA can read the data from the EMCA (CMG1) chip, as well as communicate with the UFP PD controller over CC wire.

However, if CCG3PA is plugged into the CMG1 EMCA cable only (so no UFP device connected on the other side), is it possible that CCG3PA can read the data from the CMG1 EMCA chip without an UFP present? I tried this setup with the Cypress PD Analyzer, but I didn’t see any CC packet exchanged.

Thanks,
Jonathan

Hello

We are considering using PAG1, but could you tell me plural recommended model number/Maker of pulse trans?

Best Regards

Arai

Hi, 

I wanted to continue this with updated waveform captures from my previous question that got closed so i cannot reply. 

We found an issue where I am not sure if this is an issue with the cypress sdk. 

but if we plug a pair of XiaoMi Type-C earphone BRE02JY into port 0 the device will continuously reset. 

If we plug the device into port 1, then the reset does not happen and these headphones work normally.

I have checked the configuration (attached) in ez_pd configurator and as far as I can tell both ports are setup the same. 

Looking at interrupts coming from the device over the EC i2c interface - this part will continuously respond with code 0x80 on the device interrupt register which is the RESET_COMPLETE event. indicating that the device is rebooting over and over as long as this device is attached to the port. 

[814.508406 PD Controller 1 Port 255 Code 0x80 Response Len: 0x00]
[814.582658 PD Controller 1 Port 255 Code 0x80 Response Len: 0x00]
[815.862641 PD Controller 1 Port 255 Code 0x80 Response Len: 0x00]
[815.936897 PD Controller 1 Port 255 Code 0x80 Response Len: 0x00]
[817.216020 PD Controller 1 Port 255 Code 0x80 Response Len: 0x00]
[817.290269 PD Controller 1 Port 255 Code 0x80 Response Len: 0x00]

Hello
I am interested in making current and voltage measurements on my device. For this purpose I used cy4500 protocol analyzer. I was able to display graphs of voltage and current however I would like to get more accurate information to perform calculations of average current, average power and more.
I understand that all the information is saved in the .ccgx3 file
The user manual states that
Note: * .ccgx3 file is a proprietary Cypress format. Files stored in this format can be opened using any XML editor.
I tried to extract the information from the file but could not even open it. I would be happy for your help with what software can I open the file?
Or if there is another method to get accurate measurements of current and voltage consumed in the device, for analysis?
thanks, Geva