USB low-full-high speed peripherals

Hello,

I have two questions related to getting the resistor strapping correct for my application, please. I do not plan on using the configuration utility to program the parts, so I want to make sure everything will behave as expected when using the default Mode 0 configuration on power up.

1. The datasheet does not specify the default states for the dedicated GPIO pins. I am presuming they are TRISTATE and that if I am not using them I can just tie them directly to GND. Please confirm. 

2. Mode 0 configures for 6-pin UARTs but my design only has RXD and TXD. Is it ok to leave the flow controls (i.e. CTS, RTS, DSR, DTR) as no connects in 6-pin UART mode or do I need to specifically tie them directly, or pull them up/down to specific active/inactive states.

Thank you in advance!

-Chris

Hi,

We are validating UART vendor mode flow control of CY7C65215 via CYUSB236 EVK with Cypress Linux SDK. As shown in attached test report, we found CTS of CY7C65215 is active HIGH which doesn't comply with RS/EIA-232 standard that defines RTS,CTS as active low.

The non-standard CTS behavior of CY7C65215 causing it failing to receive data from other standard active low UART devices as RTS/CTS flow control is enabled.

Could you help provide methods for configuring RTS/CTS of CY7C65215 as active low ?

Best Regards,

Justy Huang

We are using USB HUB PN# CYUSB3324-88LTXC on the board but  in case if we Assemble the PN# CYUSB3328-88LTXC on the same FP (pl. help to re-validate whether its FP compatible), then what other HW or FW changes would be needed to operate the HUB functionalities same as currently used PN# CYUSB3324-88LTXC?

I’m using the EZ USB FX2LP Discovery Kit with Windows 10.  I found the set of drivers in this forum, and  did have the driver working once.  But now, when I connect to the board, a window comes up that states “USB Device Not Recognized”.   In Device Manager under “Universal Serial Bus controllers” it shows up as “Cypress FX2LP No EEPROM Device” but has the triangle exclamation point symbol.  Under Device status it shows “This device cannot start. (Code 10)  A request for the USB device descriptor failed.”

I tried to update the driver again but still get the same error.  Any suggestions?

I am creating a C++ app to control my USB device. All i need is to link the cyapi.lib from the cpp library folder to my project?. No need for the CyAPI.dll during the run time?.  I read CyAPI.dll is for .NET application development.  There is no need for the CyAPI.dll for the non-managed C++ APPs?. I could not find CyAPI.dll for non-managed C++ in the install directory.

where can I find the latest PDF for programmer's reference.