USB hosts hubs transceivers Forum Discussions
Hi,
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,
Phani.
Show LessHi , 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 LessI 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.
Thanks!
Adrian
Show LessI'm unable to make UART serial communication with FX3. I tried UartLpRegMode example. When I single stepped through my code with a J-link segger debugger, I realized that rxTxByte is always zero and apiRetStatus is 69. I'm not getting anything on the serial terminal when I set to the baud rate I configured in the program. Tried putting some CyU3PDebugPrint statements, but nothing is getting printed. Even, after configuring the UART. Tried shorting TXD and RXD pins to see any loopback, but no improvements. Even manual values are not getting printed. I'm not sure, whether I'm running properly and testing. Any suggestions would be greatly helpful. Thanks for helping !
Show LessHello
Q1)Regarding the bMax-power, it is described on page 14 of the datasheet, but we are understanding that it is necessary to set the Maximum Power value for each connected "devices"?
If no, please tell me the details.
Q2-1) The default value is described as "32h(100 mA)", but please tell me the reason.
Q2-2)When powering HX2VL with self power, is it possible to change the bMax-power descriptor
information by themselves to FAh(500 mA)?If yes, is it possible to change the bMax-power value of EEPROM directly?
Best Regards
Arai
Show LessHello
Please tell me the state(CMOS output or Open drain or Hi-Z) of PWR#_I2C_SDA pin(26pin) during the following each operation period?
Case1: During Reset.
Case2:Immedietely after reset cancellation(Initial setting).
Case3:During I2C operation.
Case4:Transition period of I2C operation END to /PWR operation start.
Case5:Immedietely after /PWR operation is started(Initial setting)
Best Reagrds
Arai
Show LessHi,
I have a carrier board with touchscreen and SMARC connector. The touchscreen is connected via USB hub (USB2.0 full speed)
When I connect a SMARC module with SMSC2532 USB hub controller from Microchip and zap the touchscreen with ESD 8kV air discharge, I see no problem with the touch.
When I connect a SMARC module with CY7C65642 USB hub controller and perform the same ESD test, the touch screen stops working.
I could find the ESD performance of the microchip hub which conforms to JEDEC class 3A but I cannot find any information for the CY7C65642 hub controller.
Please guide.
Show LessHello, We have designed a hub based on the CYUSB3314 chip. The hub has failed USB compliance testing because the bcdUSB string returns 3.00 instead of 3.10. I see no way to change that in the configuration EEPROM. Does that mean this chip is now non-compliant for USB 3.1 Gen 1 certification? The USB.org has stopped the use of the USB 3.0 name and only uses USB 3.1 Gen 1 as the official designation. Could this be remedied in an HX3 firmware update?
regards,
Matt Knapp
Show LessHello! My team and I are designing a device that uses the CYUSB3333 to implement a USB hub; the upstream port will be a USB 3.1 Type C connector, and on the downstream side we will have two USB 3.0 Type Micro B connectors, as well as a microcontroller connected directly on the board using USB 2.0. I had a few concerns I wanted to go over regarding this specific chip: -What is the preferred method to connect the Type-C connector data pairs to the Hub IC? In the reference design the signals are sent through a Mux that allows for video to be sent to a display port, but we are strictly using the USB data only. The connector has 4 USB 3.0 Pairs, but the CYUSB3333 only has pins for two of the pairs. -How should the unused PD Controller Port 2 pins be connected? Should they be left floating, or connected to a voltage source? -How should the I2C, Debug, and GPIO pins be connected if they will also be unused? Thank you! Regards, Simran |