USB EZ-PD™ Type-C Forum Discussions

Hi Cypress

We need CYPD3176 HPI (Host Processor Interface) Specification for PPS control  , Can you provide datasheet or examples it (How to use the communications protocol set for PPS function) , Thank !!

Dear Cypress Engineer

  I have a few questions for you about CCG2(EZ-PD™ CCG2 USB Type-C Monitor/Dock Solution (cypress.com)). The reason is that we are now doing the NVIDIA Jetson Nano NX Board. We need type-C to integrate DP Alt Mode functionality. So we found your solution for CCG2.

  I have a few questions about your solution. First, usb billboard in this scheme is necessary if I don't use billboard Device in our PC. Secondly, your plan uses two chips, CYPD2121 and CYPD2125, which act on CC control of Upstream and Dowmstream respectively. Secondly, your plan uses two chips, CYPD2121 and CYPD2125, which act on CC control of upstream and Dowmstream respectively. But I only found CYPD2122 on your official website, is it the same function as theirs? I want to use it as Dowmstream. Third, do we need to write any necessary programs for this solution? Third, do we need to write any necessary programs for this solution? Or it can be used once the hardware circuits are properly built.    

  Thank you very much for being here, and I hope you can answer my questionsion.

I got CCG2 passive cable fw that contains two FW caycad.

one is main.cyacd, another is Failsafe.cyacd.

May i know what different between both of FWs?

if fw running in failsafe mode, are there any functional limitations?

Hi Sirs,

Why HPI do not have example code could be shared?

If there are sample code , the development time can be shortened.

Will there be a chance to be open?

Thank you.

Hi!

We are looking at a customer case where power supply for a USB-C PD 5A charger is 48VDC. Since it is hard (impossible) to find DC/DC-controllers optimized for USB-C with 48VDC we considered using a flyback solution instead. 

Is it possible to use PAG1-solution with 48VDC input?  We would of course not need the rectifier, but more or less keep the rest. Any other main things to consider if we were to base it on the 65W CoolGaN ref design?

/Olof

Dear CY：

客户需要实现对外实现5V/3A对外设充电（固定为5V/3A），同时作为data role 仅需要实现UFP。

P22管脚用于在协商结束后，通过gpio输出一个信号复位一下USB HUB，请问该设计是否有什么问题？

非常感谢！

I am using EZ-PD Analyzer Utility Version 1.0.0.084 and although Windows recognizes the Cy4500 device, the application does not. This devices was working previously but stopped working recently. I have other CY4500 devices that have done the same. LED1 on the device flashes white when plugged in. I am unable to try reflashing the device because it is not recognized by the application. Is there another way to reprogram the device? Device sticker says 121-60321-01 Rev 09 2021CN00074. Thanks.

My company is designing our own version of the CY4531 EVK.  We will use the same CY7C65215 chip as the USB-to-I2C bridge to program the CCG3 chip.  I assume the CY7C65215 needs a particular firmware loaded to support the CCG3, but I can't find any information about that the in EVK design documents.  I also can't find any information on how to load the CY7C65215 with firmware.  I don't have much experience with Cypress micros, so any information would be helpful.

To whom it may concerned ,

a CCG2 is emplyed on our USB4 Gen3 cable product which undergoes the compliance test w/ 3 items failed — 

1)Ra is out of 800 Ohm ~ 1.2K Ohm ( 3 pcs  tested and 1/3 ok w/ Vconn @423 mV ,and 2 out of 3 NG w/ Vconn = 402 mV )

2) PD3 modes - checking SVIDs ( The UUT shall return a number of SVIDs in between 1 and 1, actual 2 (TEST.PD.VDM.CBL.1#3)

3)Checking Headers (Message ID 0): Manufacturer String shall be null terminated (COMMON.CHECK.PD.10#1 x 1)

Kindly advise the countermeasure of the above 3 issues.

f.y.i. 1）NG test report 2）SVID on VIF 3）SVIDs setting on CCG2 are on the attached photos。

Thank you and best Regards,

Alan Huang 

Base on KBA231336 https://community.infineon.com/t5/Knowledge-Base-Articles/EZ-PD-Barrel-connector-replacement-BCR-FAQs-KBA231336/ta-p/289954

But we can not find any information about CYPD3176 & CYPD3178 on web.

Please kindly share datasheet, HPI Spec. , UFP SDK etc.

Current we want use CYPD3176 to support PPS sink application.