# Hifive1 revb uart interrupt

**URL:** <https://forums.sifive.com/t/hifive1-revb-uart-interrupt/3486>\
**Category:** HiFive1 Rev B\
**Created:** [March 23, 2020, 11:55am UTC](https://forums.sifive.com/t/hifive1-revb-uart-interrupt/3486 "2020-03-23T11:55:09Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![luott](https://avatars.discourse-cdn.com/v4/letter/l/f4b2a3/32.png) [@luott](https://forums.sifive.com/u/luott)\
**Post date:** [March 23, 2020, 11:55am UTC](https://forums.sifive.com/t/hifive1-revb-uart-interrupt/3486/1 "2020-03-23T11:55:09Z")

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Everybody help me .  
How do I implement the interrupt with the library used by “metal”.

 ![tttt](https://us1.discourse-cdn.com/flex020/uploads/sifive/original/2X/d/d95901e922dd26e2ab33847d2452277fbde09b13.png)