# Dma channel not started when partial reconfig

**URL:** <https://discuss.pynq.io/t/dma-channel-not-started-when-partial-reconfig/825>\
**Category:** Support\
**Created:** [January 5, 2020, 5:35am UTC](https://discuss.pynq.io/t/dma-channel-not-started-when-partial-reconfig/825 "2020-01-05T05:35:36Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![roy](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/roy/32/539_2.png) [@roy](https://discuss.pynq.io/u/roy)\
**Post date:** [January 18, 2020, 6:31am UTC](https://discuss.pynq.io/t/dma-channel-not-started-when-partial-reconfig/825/6 "2020-01-18T06:31:30Z")

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Hi @rock,  
Thanks for your reply. You are right. Based on my experiment, PR decoupler is a must when performing partial reconfig.

 ![image](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/1X/1ef72ed473166fc2811618e9c1ec0febb7a2ecc8.png)  
Big thanks for your reminder.

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