USB EZ-PD™ Type-C Forum Discussions
Can I request a new requirement due to developing our product based CYPD3171-24LQXQ_cla platform? we know the CYPD3171-24LQXQ_cla platform support quick charge protocol such as PD3.0/QC4.0 etc, but we still need to integrated others private protocol such as Huawei SCP/OPPO VOOC to the platform, so we hope to open the platform PD stack source code to us and further to develop our product based CYPD3171-24LQXQ_cla, but currently PD stack is provided by the pre-compiled library and is inconvenient to us to integrate these function
Show LessCan any one tell me how can i open the protocol analyzer utility for the CY4532 EZ-PD CCG3PA, or the analyzer utility ?
I have downloaded all the files asked but still i can open it.
If any one have a manual guide or files it will be very helpful.
Show LessWe are planning to use the CYPD3175 for one of our application as USB-A and USB-C charger. I would like to know if the external thermistor for the over temperature protection can be used to reduce the current in the USB-C and USB-A port by programming a custom firmware? If yes, can you point me to the proper API that can be used to read the temperature and set the current for each port?
Thanks
Show LessHi ,
it is possible add custom task to power sdk ( stack ) ?
it is possible run RTOS with power sdk ( stack )
my question above is because in my application i want build task which will be mgmt data transmit and receive from I2C master ? any for suggestion or recommendation design with power sdk
Show LessWe are facing problem update CYPD3175 FW via Power Board The second attempt failed because power board does not recognize cypd3175 device
We selected CCG3PA Power Adapter with Direct Feedback Control example from Power SDK
We used PSoC creator 4.2.
attached docx which describe the problem
the issue is argent because we do not have SWD line on custom HW
Show LessI am looking at the schematics for the car charger: https://www.cypress.com/documentation/reference-designs/ez-pd-ccg3pa-usb-c-pps-39w-dual-port-car-charger-power-adapter
Page 2 of the schematics shows the USB data pins connected together thorough a 0R link. Why is this?
DM-A and DP-A are connected together through a 0 ohm link R20.
How can QC 2.0 work? The device should request more voltage e.g. 9V by sending voltage on the data pins. Is the data pins are connected together, QC 2.0 cannot work.
Can you explain this or have I misunderstood?
The testing below shows a voltage present on the data pins. How can this be when there is a 0R link connecting them together?
Are the schematics out of date?
Show LessHello,
I am designing in a CYPD3177 for a 30W (12V @ 2.5A max.) USB PD solution integrating with the BQ25703A Charge controller. I have set up the BCR to accept 5V as VBUS minimum, and I wanted to know if the Safe_PWR_En is required if I am OK with 5V on VBUS as a primary voltage or can I leave the pin disconnected? If the Safe_PWR is required, what is the intended method to effectively merge the two power lines then to deliver power to my system and battery if I do use this line? Is safe power only intended to alert or indicate a problem? I haven't seen much in the datasheets or evaluation guides that talk about this, from the schematic of the evaluation kit the safe 5V does not go to main system power. Any guidance you can offer to this would be much appreciated.
Show LessDear,
I encountered some problems when making HUB project using CYPD4236 of CCG4.
When I connected the notebook, I received SVID=0x17EF and responded to NAK, and it would enter an infinite loop.
(Refer to the attachment Fail Log.ccgx)
I refer to other hubs, if SVID=0x17EF responds with NACK, it will not fall into an infinite loop.
(Refer to the attachment PASS Log.ccgx)
Q1: How can I modify the code so that it does not respond to the SVID of 0x17EF?
Q2: Is there any other solution that does not fall into an infinite loop?
Thanks.
Show Less