USB low-full-high speed peripherals Forum Discussions

Hello,

When configured as an SPI slave how does the buffer work on this part? Does the buffer erase the oldest characters, or does it not allow new characters when the buffer becomes full?

Thank you,

Jake 

I'm considering designing a USB interface using the FX2LP and have some questions about device drivers.  Is there a Windows 10 driver for the FX2LP? Will I need to apply for a USB vendor code for production use or can I use the Cypress vendor code? What about driver signing - do I need to get any drivers signed by Microsoft and is this difficult?

Hello,

When the CY7C65211A is configured as an SPI slave you are able to configure GPIO1/0 for an Rx and Tx LED. I noticed that the LEDs do not start to change state until after a certain amount of clock signals. My question is are these signals fixed where they turn on and off after a certain amount of clock periods?

Thank you,

Jake

Dear all,

I'm currently working on CY7C65215 i would like to know how to perform an SPI loopback (pin/jumper set up)  and if there is any example code (c++, c, python) on how to set one spi to slave and the other to master and perform loopback communication (like the UART example but without using SPI EEprom).

Thanks in advance.

Have a nice day.

I designed a new board using CY7C65211. My computer is Dell XPS 13 with Windows 10 Pro.

After installed CypressDriverInstaller_1.exe, I connected the board to USB port. I checked the Device Manger.

There is "Unknown USB Device (Device Descriptor Request Failed)". I did the manual point to download driver.

(Please see attached file for error.)

The error is still the same. Please educate me what I did wrong.

Million thanks in advance.

This question was not quite fully-answered...for my application, I have a mux setup for multiple SPI devices. 

Specifically: I need to know the minimum time from SSEL_OUT assertion (going low) to start of the SPI master clock action.

Thanks.

Hi,

What is the "state of the art" Tool chain to be used to developt a firmware onto FX2LP18 ?

I've currently the SDK you provided onto your website (quite old ...) using Keil V2 Project and Examples (Keil is now V6).

With limited code size : 4 Ko.

Do i need to stay  onto uvision V2 ? and Ask Keil for a Full License ?

Is there any "free" solution using another free compiler/linker ?

Regards.

Hello,

I would like to configure the CYUSBS234 as an SPI slave and am trying to figure out if the RX/TX LEDs are on GPIO8 and GPIO9 like the datasheet says, or if they are on GPIO0 and GPIO1 like the configuration utility guide has them?

Thank you,

Jake

Hi,

I 'm using C# code from an application note (AN63620).

I need to send infortmation SETUPDAT[6] and SETUPDAT[7] to my Firmware.

C# APPLICATION SIDE :

                CtrlEndPt = myDevice.ControlEndPt;

                CtrlEndPt.Value is REPRENTATIVE of the valueParam SETUPDAT[2] & SETUPDAT[3] : RIGHT ?

                CtrlEndPt.Index is REPRENTATIVE of the indexParam  SETUPDAT[4] & SETUPDAT[5] : RIGHT ?

                But What About lengthParam ??

Is there any way to set SETUPDAT[7] and SETUPDAT[6] in the code application C# side ?

To pass this information to the FX2LP18 firmware ...

FIRMWARE SIDE :

// Retrieve parameters, sent in big endian format for STICEX vendor requests

// (thus not respecting USB-2.0 spec, but 8051 processor endianness).

// The 8051 is a big endian processor => no byte swap required, simply

// cast the pointer

valueParam  = *(WORD *)(&(SETUPDAT[2]));

indexParam  = *(WORD *)(&(SETUPDAT[4]));

// The length param is sent in little endian format by the CyUSB driver,

// respecting the USB-2.0 spec.

// The 8051 is a big endian processor => byte swap required

lengthParam = ((WORD)(SETUPDAT[7]))<<8 | SETUPDAT[6];

Thanks for help.