# ValueError: embedded null byte while implementing DPR on ZCU216

**URL:** <https://discuss.pynq.io/t/valueerror-embedded-null-byte-while-implementing-dpr-on-zcu216/7164>\
**Category:** Support\
**Created:** [June 18, 2024, 2:41pm UTC](https://discuss.pynq.io/t/valueerror-embedded-null-byte-while-implementing-dpr-on-zcu216/7164 "2024-06-18T14:41:52Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![H.W](https://avatars.discourse-cdn.com/v4/letter/h/b5ac83/32.png) [@H.W](https://discuss.pynq.io/u/H.W)\
**Post date:** [June 18, 2024, 5:44pm UTC](https://discuss.pynq.io/t/valueerror-embedded-null-byte-while-implementing-dpr-on-zcu216/7164/3 "2024-06-18T17:44:39Z")

</div>

Thank you for the reply.

1. My inspiration is actually from this link:  
[PYNQ 2.7 DFX Partial Reconfiguration under Vivado 2020.2](https://discuss.pynq.io/t/pynq-2-7-dfx-partial-reconfiguration-under-vivado-2020-2/4713)

He used the same PYNQ version and same Partial Reconfiguration Implementation as I did.  
(However the vivado version and board are different)

 ![Block Design](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/1/1952a9d72c703eb929698b044b651dea9b10e504.png)  
 ![Net List](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/7/72117ae6a6d5fe729b3db9d0a13478e024204dde.png)

1. In you suggestions, which states:  
" In the following example, let us assume there is a hierarchical block called _block\_0_ in the design."

I do have a hierarchy called “pr\_sec” for the DPR, (check in the image above.) but I can’t find it in the ip\_dict in PYNQ:

```auto
AttributeError: Could not find IP or hierarchy pr_sec in overlay

```

Is there anything I missed or doing wrong?

BR,  
H.W

---

_[View the full topic](https://discuss.pynq.io/t/valueerror-embedded-null-byte-while-implementing-dpr-on-zcu216/7164)._