Xclbin cannot be downloaded on AWS F1 instance

Support
1

Hi everyone!

I compiled the hello world and this other example on an AWS instance with the FPGA Developer AMI and obtained the corresponding xclbin files.

When I try to download the xclbin file on an F1 instance, it fails with the following error:

import pynq

# program the device
ol = pynq.Overlay("vadd.xclbin")

---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
<ipython-input-2-1a85661e7c73> in <module>
      3 
      4 # program the device
----> 5 ol = pynq.Overlay("vadd.xclbin")

~/anaconda3/lib/python3.7/site-packages/pynq/overlay.py in __init__(self, bitfile_name, dtbo, download, ignore_version, device)
    342 
    343         if download:
--> 344             self.download()
    345 
    346         self.__doc__ = _build_docstring(self._ip_map._description,

~/anaconda3/lib/python3.7/site-packages/pynq/overlay.py in download(self, dtbo)
    401                 Clocks.set_pl_clk(i)
    402 
--> 403         super().download(self.parser)
    404         if dtbo:
    405             super().insert_dtbo(dtbo)

~/anaconda3/lib/python3.7/site-packages/pynq/bitstream.py in download(self, parser)
    152 
    153         """
--> 154         self.device.download(self, parser)
    155 
    156     def remove_dtbo(self):

~/anaconda3/lib/python3.7/site-packages/pynq/pl_server/xrt_device.py in download(self, bitstream, parser)
    499                 self.contexts = old_contexts
    500                 raise RuntimeError("Programming Device failed: " +
--> 501                                    _format_xrt_error(err))
    502         finally:
    503             xrt.xclUnlockDevice(self.handle)

RuntimeError: Programming Device failed: EINVAL (22) Invalid argument

Any hints? Am I missing something?

Thanks in advance,
Medrano

2

Moving to support.
Did you run the process to create an Amazon FPGA image (AFI), or is the xclbin the output of Vitis?

Cathal

3

Hi Cathal,
this is the xclbin from Vitis.

Do I need to create the AFI, the process with the S3 bucket?

Best,
Medrano.

4

Yes, exactly, you need to create the AFI - this is the way AWS works.

This may be useful:

Cathal

5

Thanks a lot.
A final question, so, the file you should pass to pynq is the awsxclbin, as in

ol = pynq.Overlay("vadd.awsxclbin") ?

Best,
Medrano

6

Yes, exactly.

Cathal

7

You can rename the awsxclbin to xclbin for Overlay class to accept it.

8

This isn’t necessary. Any filename extension will do.

Peter

1 Like
9

Thanks @rock and @PeterOgden for your answers.

Medrano