by support »
Hello,
This is definitely not a Xillybus issue. If you have the original loopback logic in the FPGA, check your own test program please.
You didn't mention if you're working with Linux or Windows. In some cases, Windows can have trouble reading files beyond 2 GB.
Do you verify that your read() and write() operations are successful? Are exceeding some buffer size (maybe 2 GB large)? Or are you counting bytes in some way with a signed int?
Just a few ideas. As I said, if you haven't changed the loopback example, odds are that the problem is with the test program or file size. In case of doubt, I suggest creating a named pipe, and run the test on that. I bet the problem will remain.
Regards,
Eli
Hello,
This is definitely not a Xillybus issue. If you have the original loopback logic in the FPGA, check your own test program please.
You didn't mention if you're working with Linux or Windows. In some cases, Windows can have trouble reading files beyond 2 GB.
Do you verify that your read() and write() operations are successful? Are exceeding some buffer size (maybe 2 GB large)? Or are you counting bytes in some way with a signed int?
Just a few ideas. As I said, if you haven't changed the loopback example, odds are that the problem is with the test program or file size. In case of doubt, I suggest creating a named pipe, and run the test on that. I bet the problem will remain.
Regards,
Eli