Error and Solution
can not login
Error message:
Your username and password didn't match.
Please try again.
Possible reason:
- wrong username or password
Solution:
Check your username and password. Or Ask the administrator to reset your password.
refuse to acquire
Error message:
Sorry, but...
You might see this page if you:
......
WARNING: This will release the FPGA you are currently using.
Possible reason:
- Attemptted to acquire multiple FPGA instances.
- Opened two FPGA pages.
- Refreshed the FPGA page.
Solution:
Open only one FPGA page. Or press Reacquire button.
no instance available
Error message:
There are no FPGA instances currently available.
Possible reason:
- Some devices were accidentally offline.
- Many users are using at the same time.
- Both above.
Solution:
Wait and try again. Or contact with the administrator.
upload or program fail
Error message:
Failed to program device with the uploaded file. Perhaps this file is not a valid bitstream?
Possible reason:
- You have select the wrong chip(not xc7a100tcsg324-1).
- poor network condition.
- Some device(s) accidentally went wrong.
Solution:
Check the chip and try again.
connection closed
Error message:
Connection closed unexpectedly!
Perhaps it's a network error
or you may be holding FPGA for too long (>10 min).
Possible reason:
- poor network condition.
- timeout.
Solution:
Wait and try again.
fail to render waveform
No Error message: (your browser get stuck)
Possible reason:
- The signal you put on LED(s) change too rapidly.
- poor network condition.
Solution:
Use period mode waveform.