Hi kartg0058033，

The GPIO35 ~ 37 is used by internal Octal SPI PSRAM/Flash, when you use ESP32-S3-DevKitC-1-NxR8V (with ESP32-S3-WROOM-2) and ESP32-S3-DevKitC-1-NxR8 (with ESP32-S3-WROOM-1-NxR8).

你查看一下，你的上电log打印是不是一样的。如果是一样的，请检查一下IO12/MTDI 在模组上电时是不是被拉高了。 IO12/MTDI上电时需要确保为低电平或者这个引脚先悬空，再试试看。

你先试一下手动进入下载模式，看模块打印信息正常吗？
1. 找一个串口调试工具软件，PCB端运行软件，配置好对应连接板子的USB端口号，波特率设置为115200bps。
2. 按住boot按键，然后再按一下EN按键复位，正常会进入下载模式，并会有如下信息打印出来, 说明能正常进下载模式了，UART通讯应该也是正常的。

rst:0x1 (POWERON_RESET),boot:0x26 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_FEO_V2))
waiting for download

Hi ,
The KCC certificate of ESP32-WROOM-32E will be available on end of December.

你好，请问：1.RF test tool 放置的目录中是否有中文路径？2.是否有杀毒软件在工作？

You can cover it up with a label . It is location hole for shield cover SMT production.

Please refer to following notes in "2.2 Pin Description " of ESP32 chip's datasheet. The pin-pin mapping between ESP32-D2WD/ESP32-U4WDH and the embedded flash is as follows: GPIO16 = CS#, GPIO17 = IO1/DO, SD_CMD = IO3/HOLD#, SD_CLK = CLK, SD_DATA_0 = IO2/WP#, SD_DATA_1 = IO0/DI. The pins used for em...

The latest PSRAM is ESP-PSRAM64 (1.8v) and ESP-PSRAM64H (3.3v) .It is supported in IDF SDK.
https://www.espressif.com/sites/default ... eet_en.pdf

In the radiated emissions testing, you should select the "TX Continue" test mode in the ESP RF Test Tool . The duty cycle is above 90% in the "TX Continue" mode.

你好，绿色NC表示PCB上有预留焊盘位置，实际器件没有在PCB上贴片。