• CYUSB3304-68LTXC design support

    Hi Cypress   Could you help to confirm the following questions? 1.What is the purpose of EEPROM? Does EEPROM save Boot code? We found it can upgrade firmware from datasheet, but we don't need this function....
    auye_4274126
    last modified by auye_4274126
  • CY7C65642-28 - A request for the USB device descriptor failed.

    I have scoped every signal. The LED lights and oscillator is running until Windows 10 shuts down the hub after 3 seconds. USB downlinke is internally used, therefore no overcurrent protections. The power supply is st...
    JaNi_848351
    last modified by JaNi_848351
  • About the HX3PD Product Options for Signed FW Download

    Hello   Ordering Information is on page17 of the HX3PD data sheet (Document Number: 002-16615 Rev. * F). There is a description of "Signed FW Download" in Table5 Ordering Information, but could you please tell m...
    NoAr_1540581
    last modified by NoAr_1540581
  • What documentation describes how Cypress’ conforms to USB 3.x packet prioritization?

    I understand in USB 3.x, hubs are required to service packets using a priority order: 1) Transaction Packet; 2) Data Packet for interrupt or Isochronous modes; 3) Data Packets for Bulk and Control modes. Does Cypress...
    GrCa_1363456
    last modified by GrCa_1363456
  • CYUSB3326-88LTXI : USB Loopback mode

    Dear Support and Expert   We are using CYUSB3326-88LTXI on our product. And we want to test Signal Intergrity on USB Rx lines. Is there any method to enter the USB HUB Loopback mode?   We are now trying, ...
    KyLe_3407496
    last modified by KyLe_3407496
  • CY4609 Interface development board power overload

    Hello! Our company recently purchased a CY4609 interface development board through the authorized CYPRESS store. The power supply was overloaded accidentally and the rated voltage was 5V, but the actual use was 12V. C...
    user_4517871
    last modified by user_4517871
  • CYUSB3014--BZXI chip not detected

    Hi all,  I am working on Cypress cyusb3014-bzxi chip. However when I connect it to the computer, I am unable to detect the device. It doesn’t show up anywhere in device manager also. Do I have to do some...
    userc_39191
    last modified by userc_39191
  • I was asked about USB2.0 Hub CYUSB2304-68LTXI.

    I was asked about USB2.0 Hub CYUSB2304-68LTXI.     1. What is the actual threshold of VHSDSC(Disconnection Envelope Detector)?    They know that the min & max VHSDSC values described in the U...
    TeMi_4035936
    last modified by TeMi_4035936
  • Cypress USB3 4603 HX3 DVK  Violating PENDING_HP_TIMER

    Based on the 3.1 Standard (Table 7-7), the PENDING_HP_TIMER has a 3 us value.  However, I see certain cases that Cypress Hub violates this timer marginally by about ~100-200ns. In our test setup, these recoveries...
    MoNa_2346666
    last modified by MoNa_2346666
  • CY7C65642 Getting Very Hot and Failed upon device Hot Plug

    Hi Cypress DevCommunity!   I am currently running into the following situation... Hoping that I can get some help on pinpointing the root cause.   When a device is hot plugged to the downstream port of the...
    kekoc_4081231
    last modified by kekoc_4081231
  • CYUSB3314 individual Port Power control i2c Code

    I am searching for i2c code when cyusb3314 is in slave mode and I can configure individual port power control ,Please share Linux i2c sample code
    FaKu_4461091
    last modified by FaKu_4461091
  • CY7C67200 driver windows 10

    Hi All,   I am trying to use a CY7C67200 USB control chip to enable communication between an FPGA and a host computer. The reason I am using this chip is that it is pre installed on the development board I am us...
    VaRo_4434326
    last modified by VaRo_4434326
  • HX3 I2C ACspec

    I want to know CYUSB2304's I2C AC specs. However, there is no description of AC specs in "HX3 USB 3.0 Hub datasheet(001-73643 Rev.*R)". I think it is equivalent to "PSoC Creator Component I2C Master/Multi Master/Sla...
    MaIs_1681396
    last modified by MaIs_1681396
  • Cypress CYUSB3314 design problem

    Hi Cypress   Whether have design issue When We only connect USB3.0 pins in CYUSB3314 circuit Then let USB2.0 pins don't connect anything and keep open , Thank !!
    auye_4274126
    last modified by auye_4274126
  • Cannot include a header file in EZ USB Suite.

    I reinstalled and repaired the SDK several times but the header file is not able to be resolved in the source code. This header file is not present in the workspace, it is an inbuilt include file. How can I solve the ...
    ArR_3981656
    last modified by ArR_3981656
  • 快速切换usb传输通道和uart传输通道

    大家好, 具体问题:系统中usb传输通道与uart通道同时存在,希望能够快速切换这两种数据传输模式。请问有什么合适的芯片推荐吗?谢谢大家!
    laze_4418921
    last modified by laze_4418921
  • How to change drive strength of CYUSB3304-68LTXI USB HUB?

    Hi All,   We are working on NXP'S imx8 based custom design. we had interface cypress's CYUSB3304-68LTXI USB hub. It is working fine with SOC. We need to change the drive strength of the USB HUB. So, we have fol...
    pamo_4419601
    last modified by pamo_4419601
  • CY7C65642 bypassing #PWR and #OVR pins

    Hi, we are designing a new USB hub, and I have a question about the #PWR and #OVR pins. If our downstream devices are self powered, is there any problem with bypassing the #PWR and #OVR pins? I am planning to leave th...
    AlAh_4392861
    last modified by AlAh_4392861
  • HX3 charging limit issue

    Hi, we have charging problem with CYUSB3328 hubs.   Expectation: At startup we want to read out cypress settings. We want to verify that correct set of settings are in use. Then we want to charge phones with 1,...
    MaLo_1464931
    last modified by MaLo_1464931
  • LED behavior definition and control method of CY7C65632/42

    Hi, I'd like to use CY7C65632/42 for the project. I see there's LED control pins on CY7C65632/42 series But I'm wondering - 1. What is the default control behaviour for GREEN/AMBER? 2. Can you control the L...
    ChHu_4370401
    last modified by ChHu_4370401