# Using AXI DMA on ZCU104

**URL:** <https://discuss.pynq.io/t/using-axi-dma-on-zcu104/779>\
**Category:** Support\
**Created:** [December 19, 2019, 5:53pm UTC](https://discuss.pynq.io/t/using-axi-dma-on-zcu104/779 "2019-12-19T17:53:53Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![PeterOgden](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/peterogden/32/55_2.png) [@PeterOgden](https://discuss.pynq.io/u/PeterOgden)\
**Post date:** [December 20, 2019, 3:11pm UTC](https://discuss.pynq.io/t/using-axi-dma-on-zcu104/779/5 "2019-12-20T15:11:21Z")

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Yes - they should be 128. There has to be a match between that setting and what’s configured in software when the board boots and the block design. For the PYNQ boot files we keep the default of 128 so that’s what the block design should have as well.

Peter

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