esp32-c3_hardware_design_guidelines_cn 中原理图的疑问点:

plj_357
Posts: 11
Joined: Fri Oct 15, 2021 8:52 am

esp32-c3_hardware_design_guidelines_cn 中原理图的疑问点:

Postby plj_357 » Tue Oct 19, 2021 6:21 am

根据VDD33接的是GPIO2?作用是什么?

还是说是要接chip_EN接错了?
chip_EN.jpg
chip_EN.jpg (43.96 KiB) Viewed 6140 times

ESP_LJH
Posts: 387
Joined: Tue May 18, 2021 9:21 am

Re: esp32-c3_hardware_design_guidelines_cn 中原理图的疑问点:

Postby ESP_LJH » Tue Oct 19, 2021 8:43 am

因为 GPIO2 是 strapping 管脚,SPI boot 和 UART boot 上电都需要为高,所以就直接加了个上拉电阻。

plj_357
Posts: 11
Joined: Fri Oct 15, 2021 8:52 am

Re: esp32-c3_hardware_design_guidelines_cn 中原理图的疑问点:

Postby plj_357 » Tue Oct 19, 2021 8:54 am

了解了,谢谢回复。

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