USB superspeed peripherals Forum Discussions

I want to design a USB to SD card bridge using SD3. Is there an example project and reference schematic which I can refer to?

-> You can refer to cyfx3s_msc and cyfx3s_raid0 example projects provided in EZ-USB FX3 SDK

    You can refer to the attached FX3S USB RAID Dongle schematic for your design.

Hi,

I am working as a software Engineer and I'm quite new to the CY7C6801a / 128 pin and keil uvision. I already have working firmware program and chip is on our own circuit.  We haven't change the firmware since very very long time so I don't know how to connect the chip with keil uvision 3 and debug on the board.If it is able to debug with this chip, I would like to know how to do it.

On our circuit board , there is a 6 pin debug connector . Pin connections are as follow:

Pin 1 -> TX0, Pin2 -> RX0, Pin3 ->TX1, Pin4 ->RX1, Pin5 -> Gnd, Pin6->3.3V.

To be able to debug the program, how should i connect ?Do i need the Ulink2 adapter to connect ? How can I convert the 10 pin Jtag to 6 pin connection that I currently have on board?

Many Thanks

Su

Hi!
I've encountered a recurring error while trying out MSC driver of USB Host example on FX3 Development Kit (CYUSB3KIT-001).
(AN77960 was my guide)

I've tried four different flash drives, and only one of them (2GB) got me response described in AN77960. One (2GB) got me only "Host connect event received" and "Host disconnect event received", the other two(8GB each) gave response shown below.

    

Host connect event received
Device descriptor received
Device address set
Config descriptor received
MSC device detected
Host connect event received
Application start failed with error: 74.

   

As it turned out after some debugging, error occurs because of an invalid CSW Signature
in CyU3PReturnStatus_t CyFxMscCheckCSW (uint8_t *csw) where csw[12] equals 1 in both cases.

csw[12] represents bCSWStatus field of CSW, thus bCSWStatus == 1 means  "Command Failed", which gives me... no new information.
(http://www.usb.org/developers/docs/devclass_docs/usbmassbulk_10.pdf page 14)
All the drives are readable from Windows. I've tried formatting, just in case, it didn't help.
(Is there any list of flash drives compatible with FX3 Host Controller, maybe? If there should be one.)

Any tips or directions to the solution would be very much appreciated. 

Hi,

FX3 DVK Samtec to FMC interconnect board (which is shown in AN65974) schematics and Gerber files are attached to this thread.

Thanks,

sai krishna.