google / google/CFU-Playground
Conda Symbiflow builds for Arty failing timing without warning?
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Description
I am seeing inconsistent behavior from my CFU. See test runs below where each of the failing cases produces different results.
Built for Arty with Symbiflow via conda.
Code is at https://github.com/alanvgreen/CFU-Playground/tree/fccm
```
Project Menu
============
1: test cfu
h: say Hello
x: eXit to previous menu
project> 1
Running test cfu
CFU Test... 00000000
ffffcc00 ok
fbffd691 FAIL (0xffffd491) -67119471 != -11119
fbffb77f FAIL (0xffffb57f) -67127425 != -19073
fbff84eb FAIL (0xffff82eb) -67140373 != -32021
---
Project Menu
============
1: test cfu
h: say Hello
x: eXit to previous menu
project> 1
Running test cfu
CFU Test... 00000000
ffffcc00 ok
dbffd791 FAIL (0xffffd491) -603990127 != -11119
dbffb87f FAIL (0xffffb57f) -603998081 != -19073
dbff85eb FAIL (0xffff82eb) -604011029 != -32021
---
Project Menu
============
1: test cfu
h: say Hello
x: eXit to previous menu
project> 1
Running test cfu
CFU Test... 00000000
ffffcc00 ok
fbfdd691 FAIL (0xffffd491) -67250543 != -11119
fbfdb77f FAIL (0xffffb57f) -67258497 != -19073
fbfd84eb FAIL (0xffff82eb) -67271445 != -32021
```
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