Multithreading

[Anonymous]

Hi

       

Is it possible to have two threads running on the host computer that are communicating to the same FX3 device but use different endpoints?

       

-Sil

[Anonymous]

Hi Sil,

   

What exactly is your application requirement?

   

I have one application that does data transfers on EP0 from the main() and IN data transfers on EP2 from a seperate thread. Both data paths are active all the time. But EP0 transfers happen at a lesser frequency.

   

Regards,

   

sai krishna.

[Anonymous]

I have two bulk endpoints, one sending large amount of upstream data (more than 100 MB/s), the second is used to send and receive data to the I2C interface (400 kBit/s).

       

Cypress should be able to tell us based on the CyApi design if this is supported or not rather than saying that is was working in some applications.

       

-Sil

[Anonymous]

Yes. You can do that.

[Anonymous]

But it does not work reliably: Sometimes when accessing from one thread to its assigned endpoints the other thread crashes with in function XferData() with the following debug message:

       

"Unhandled exception at 0x000007fef8f03a39: Access violation reading location 0xffffffffffffffff."

       

Both threads are only accessing their assigned endpoints. Has somebody thoroughly tested this and found it working?