# BW16 LOG\_RX LOG\_TX 問題

**URL:** <https://forum.amebaiot.com/t/bw16-log-rx-log-tx/1469>\
**Category:** Peripherals\
**Tags:** evb-bw16, 中文, rtl872xd\
**Created:** [October 10, 2022, 8:08am UTC](https://forum.amebaiot.com/t/bw16-log-rx-log-tx/1469 "2022-10-10T08:08:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nininono1234](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/nininono1234/32/1154_2.png) [@nininono1234](https://forum.amebaiot.com/u/nininono1234)\
**Post date:** [October 10, 2022, 8:08am UTC](https://forum.amebaiot.com/t/bw16-log-rx-log-tx/1469/1 "2022-10-10T08:08:20Z")

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有人知道這兩個腳位可當(PA7、PA8)可當一般腳位使用嗎?我在Arduino使用PA8腳位當輸出使用,便無法正常進入燒錄模式了

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**Author:** ![xidameng](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/xidameng/32/18_2.png) [@xidameng](https://forum.amebaiot.com/u/xidameng)\
**Post date:** [October 10, 2022, 8:57am UTC](https://forum.amebaiot.com/t/bw16-log-rx-log-tx/1469/2 "2022-10-10T08:57:48Z")

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![](https://us1.discourse-cdn.com/flex016/uploads/ameba/original/2X/f/fbfe777020da9138aa9411c5535c44fce55e98f5.png)  
可以的，看圖，PA7 and PA8都是可以當作GPIO用，并且支援Interrupt。 無法進入燒錄模式應該是你沒有按對 boot和reset鍵