USB EZ-PD™ Type-C

Hi, I would like to confirm if every cypress PD Device CYPD6227-96BZXI programmed with basic firmware when the part is shipped out from cypress factory. What are the basic functions of this firmware?

https://www.cypress.com/part/cypd6227-96bzxi

-Kiran

Hi,

I have a project as below:

- CYPD3174 work in no feeback mode.

- MCU read PD contract negotiation from CYPD3174 and set voltage to ACT4751.

1. To disable opto feedback mode, i comment code in condition #if (VBUS_CTRL_TYPE_P1 == VBUS_CTRL_OPTO_FB) as below: 

PDSS_TRIMS->trim_ea1_0 = 0xA0;
/* Use internal current for reference in case of opto feedback. */
pd->ea_ctrl = ((pd->ea_ctrl & ~PDSS_EA_CTRL_IREF_BG_SEL_MASK) |
(1u << PDSS_EA_CTRL_IREF_BG_SEL_POS));

/* Enable shunt */
pd->ea_ctrl |= PDSS_EA_CTRL_EN_SHNT;

Is this the right way to disable feedback mode on CYPD3174, if not please guide me.

2. I added I2C slave (SCB0) but it unable to communicate to MCU until i comment dpm_task(port); in main function.

Please help me add I2C (SCB0) and disable feedback mode of CYPD3174.

Thanks and Best regards.

Hello

The CC pin and VBUS are exposed when viewed from the outside, such as when Type-C is inserted and removed continuously, and when the connector is first inserted, 5V is momentarily applied to the IC or FET.
As a result, there is a question as to whether it will damage over and over again.Also, they want to know if it has the proof stress to withstand noise such as static electricity. Furthermore, there are only capacitors on the CC pin and VBUS lines.

Q) What is the durability of CYPD3177 regarding the above concerns?

Best Regards,

Arai

Hi,

I am trying to use the CYPD3177 over I2C to control a USB-PD SRC. After connecting a USB-PD 100W supply:

- FLIP signal rises from 0 to 3v3

- USBPD Bus rises from 0 to 5V

- Activity on CC pins (assuming successful negotiation)

The hardware seems happy. But i am getting strange results from the I2C reads:

DEVICE_MODE returns 0x95 instead of quoted "always returns 0x92". I've attached the bus transaction.

Other registers such as status, silicon ID return 0 over successful I2C reads. It's like my IC has been disabled for I2C mode.

Any ideas?

Evan

Hi,

We are using a Tigerlake SOC with a CYPD5225 power delivery.

I have checked the I2C bus between the Tigerlake and the CYPD5225, there is I2C access from the Tigerlake but none of them are acknowledge by the CYPD5225.

The I2C cycles from the Tigerlake (address 7 bit 0x51) are not acknowledged buy the CYPD5225.

To set the slave I2C address in the CYPD2552 I set the parameter "SOC I2C address (0x)" to 0x51.

Is it right ?

As pin L6 and K6 are double function pins I2C_SCB2 or GPIO, how can I check I have the right configuration for these pins ?

The template used is the file CYPD5225-96BZXI_notebook_3_4_0_2559_0_0_0_nb.hex from Cypress tool

Is there a delay between CYPD5225 power up and the first I2C cycle that the CYPD5225 is able to acknowledge ?

Thank you for help,

Best regards,

TD83

Dear Sir/Madam,

Please help to check the CYUSB4347 USB3.1 Gen2 (10Gbps) Hub is there suitable for the below application.

CYUSB4347's UpStream port attached to PC Host Port with USB3.1 Gen2 (10Gbps).

A USB3.0 Device (5Gbps operate in Isochronous Mode with 3Gbps payload) connected to CYUSB4347 DS4 port, that is works fine on data transfer from Device to PC.

But when attaching one more USB3.0 Device (same device as above) connected to CYUSB4347 DS5 port (i.e. 2 devices connected to CYUSB4347 DS ports at the same time), this device cannot get enough resources from PC Host for data transfer.

Please help to evaluate.

Best regards,

Ping 

Is there a 3D model of the PCBs contained in the CY4531 EZ-PD CCG3 Evaluation Kit?  I would like to have a .x_t, .stp, .step file type if possible.

Hello,

The HX3C data sheet contains the following information.
"If any particular section of the device function not required, then that section
alone can be kept in reset by asserting correspond reset pin to LOW."

I have some questions about this.

If I want to fix XRES_P2 to Low, should I connect it directly to the GND? Or is it better to connect it to GND via a resistor?
If I use a resistor, what is the appropriate value?

And does each XRES pin have a built-in resistor?
If so, what is its value?

Does each XRES pin have a built-in resistor?
If so, what is its value?

Regards,

Shimamura