USB EZ-PD™ Type-C Forum Discussions

Hi, 

I am trying to install ezpdhostsdk_3.4.0_Windows_x86-x64 in my PC. But it's asking me to install some other files which I have already downloaded and installed. Can you please look into the matter.

I am installing snap for your reference.

Regards,

Sumama

Hello,

I'm currently trying to read the status registers of the CYPD3177 on the CY4533 developer board using a Arduino Nano and I2C.

Reading the DEVICE_MODE and SILICON_ID Registers returns the expected values 0x95 and 0x2004. However, reading further status registers I'm facing some issues.

Here are the results:

• TYPE_C_STATUS: 0
• INTERRUPT: 0x01
• PD_STATUS: 0 
• BUS_VOLTAGE: 0 
• CURRENT_PDO: 0 
• CURRENT_RDO: 0
• EVENT_MASK: 0 
• EVENT_STATUS: 0 
• CHARGING_MODE_STATUS: 0 
• DEV_RESPONSE: 0x80
• PD_RESPONSE: 0x95

These readings don't seem to make any sense and they don't change, no matter which USB adapter I use.

0x95 for PD_RESPONSE is not even defined in the datasheet. What am I doing wrong? I already tried clearing the INTERRUPT register but although my writes are being ACKed it still reads 0x01.

The BUS_VOLTAGE register also remains 0 independently of the voltage on VBUS.

Apart from that, the PD negotiation on the dev board works fine.

Is there something I'm missing? I also have a custom board with CYPD3177 but the results are the same.

Help of any kind would be greatly appreciated!

Hi, 

EZ-PD Configuration supports 'User Parameters', 8 32bit words

• How can I access these parameters in the firmware?
• How this relates to the .customer_region in the firmware? I tried to read them but they are always 0x0.

Thanks!

Hello there,

I would like to request a schematic review please. My application has two use cases:

1. Programming: In this case I will be connecting to a computer for programming through USB-UART bridge. Hence why I have the minimum voltage set to 5V and the current set to 750mA.

2. Operating: The other case will be to provide 20V and request up to 3A from the USB PD host supply. Hence why I set it to VMax at 20V

Questions:

1. Because I set the current request to 0.75A to satisfy the programming needs, will it prevent the draw of more current when in the operating use case?

2. On a previous version of this, when I would plug into the wall PD supply, I would hear a component pop, but it would still supply 20V. Do the power FETs and diodes and other passive components look correct?

3. Additionally, do you see anything wrong with using the LM2576S-3.3 to regulate for control level voltage use off of the PD VBUS?

Thank you so much for your consideration!

Best,

Peter

Hi All:

In my design, negotiate with the PD adapter using CYPD4226 to output 15V to power the system.

During debugging, it was found that the PD adapter has already output normal voltage, but CCG4_ VBUS_ C_ CTR_ P1 remains low level and the voltage cannot pass through the MOS-FET.

Use the Logic analyzer to grab the PD negotiation on CC. It is found that the whole process is normal and "PS_RDY" has been obtained.

I am using CYPD4226-40LQXI_ Notebook -> Noboot project. 

According to the requirements, some modifications have been made. The top design is shown in a screenshot, and schematic for reference.

Please help check what the problem is. 

The HOST project requirement is:

1. don't need to support DP ALT mode

2. USB support USB3.2 Gen2x2 

I have some questions about USB3.2 Gen2x2 wire connection. 

Do I need an external MUX between USB3.2 signals source and type-c connector? 

or we don't need an external MUX and directly connect USB3.2 signals to type-c connector? 

Do you have reference schematic for USB3.2 Gen2x2 ? 

Hi team,

For USB4 realization, we are using PD controller from Infineon Technologies. The part number for the same is : CYPD6125-40LQXIT. We have datasheet available online but detailed information is missing from it.

Can you please sharethe following documents from Infineon.

Reference Schematics 

Reference Design Layout 

Reference Design BOM 

IBIS Models 

Hardware design guide or technical reference manual.

Regards,

Damodar 

Hello Infineon,

I am evaluating CYPD3177-24LQXQ using our developed circuit board.

But this chip didn't work collectly.  PD connection didn't work, so we could't see expected voltage(20V) from PD charger.

Now we are checking this board, as a result, we found that this chip didn't generate 1.8V at 24pin(VCCD).

This issue is same as below question(No.351238).

https://community.infineon.com/t5/USB-EZ-PD-Type-C/CYPD3177-Pin-24-VCCD-Issue/td-p/351238

I would like to know the result about this question. And please tell me the solution.

Thanks,