USB hosts hubs transceivers Forum Discussions
I'd like to try making something like in the question title, but I can't find many modules with the ability to "view" the devices connected to the hub. This could either take form as a microcontroller already in the hub module which is intended to be reprogrammed with firmware by the designer, or as a hub which can connect to external devices via, for example, I2C, UART, or some other protocol. Does Cypress make anything with this capability, or is there another module like this?Show Less
I was working with the CY8CKIT-049 prototyping kit when I suddenly got the Windows error message "USB Device not recognized: One of the devices attached to this computer has malfunctioned and windows does not recognize it." when trying to upload a new program using the USB-UART bridge and UART bootloader. I had been able to upload about four programs previously, but upon plugging in the device a fifth time, I received the above error message. I tried different USB ports and checking for drivers, but was unable to resolve the issue. The COM port no longer appeared in the bootloader host tool in PSoC Creator, and the USB-Serial Configuration Utility was not able to recognize it.
Upon further reflection, I think I may have shorted a couple pins on the target (which may have been the UART pins) when I was trying to upload a fifth time.
Is there some troubleshooting procedure I am missing? Or is the USB-Serial bridge toast and I should just buy a new one?
Thank You.Show Less
We are using USB 2.0 (embedded) host and connecting USB hub to it to stream video stream from 2 cameras.
1. When we use our USB 2.0 (embedded) host connected to quantum zero qz-hb03 hub and connect 2 FS (full speed) cameras to this, we can stream the video data - till maximum resolution VGA @ 30FPS.
2. Same thing when we replace with HX2VL-CY4608/CY4608M developer kit and 2 FS (full speed) cameras (USB 2.0 (embedded) host connected -> Cypress hub -> 2 FS cameras), we are limited to very less resolution (QCIF (176x144) @ 30FPS).
As our final product is based on cypress hub - wanted to know
a. Is there any setting that needs to be done with Cypress hub (any configuration etc)?
b. Is there any way we can find out the difference between Quantam hub (which is working) and Cypress hub?
c. I see the Cypress kit uses the EEPROM for configuration. Is there any specific tool that can be used to read the content and modify the content (if needed).
d. Is there any way we can find out the hubs are using STT (Single Transaction Translator) or MTT (Multi Transaction Translator) - as this may be affecting the functionality and performance.
Any other combination/ experiment can help us to debug this issue further and any pointers on this would help us to finalize the BOM and POC.
With best regards,
以下AN72332 - Guidelines on System Design Using Cypress’s USB 2.0 Hub (HX2VL)の
For applications in which the USB Host is an embedded host such as an ASIC or SOC, there is no need to report a different VID/PID than the default Cypress VID/PID. In all other use cases, it is recommended that you have a user-specific VID/PID. You can obtain a VID from USB-IF (http://www.usb.org/developers/vendor/). Users maintain their own PID list.
Hi , I have a question about the CY7C68013A Chip,it is working in Slave fifo mode.Because of the loosening of the USB interface,PC software disconnects USB connection。Especially,The power supply is open, but the USB line is disconnected,it is not possible to reconnect 2 times and receive data。I want to konw how to reconnect of the CY7C68013A and receive data?Show Less
CYUSBS232 USB-UART LP REFERENCE DESIGN KITに関する質問です。
USB-Serial Configuration UtilityにてVID/PID値を書き換えたところ、ツール上で認識されなくなり、デフォルト値に戻せなくなってしまいました。
I am using the HX3 HUB IC.
When I plug into USB 3 upstream and go into vendor mode, all Downstream port are grey out under the Blaster Plus program. If Iook under device manager, all I see is the USB 2.0 MTT driver. I never see the USB 3.0 Hub driver show up.
I have another card that is laid out the same and when I use Blaster Plus none of DS setting are grey out. I also see that the USB 3.0 HUB driver gets installed.
Has anyone ever seen this? Any input would be helpful.