ESP32-S2无法正确进入BOOT模式

1478545684
Posts: 1
Joined: Sat Aug 28, 2021 12:46 pm

ESP32-S2无法正确进入BOOT模式

Postby 1478545684 » Sat Aug 28, 2021 12:56 pm

开始我发现我购买的ESP32-S2-WROOM模块无法正常烧录
COM8 failed to connect: Failed to connect to Espressif device: Invalid head of packet (0x65)
使用PIO或者ESP tool都是如下结果。
在拉低IO0进入下载模式后,板子上的TX灯一直亮着,使用串口助手,发现当ESP32-S2进入下载模式后
一直以极快的速度重复发送以下数据:


[20:52:51.462]收←◆[0;32mI (78) boot: ESP-IDF v4.2-dev-2044-gdd3c032 2nd stage bootloader[0m
[0;32mI (78) boot: compile time 04:59:46[0m
[0;32mI (79) boot: chip revision: 0[0m
[0;31mE (81) boot_comm: mismatch chip ID, expected 2, found 0[0m
ESP-ROM:esp32s2-rc4-20191025
Build:Oct 25 2019
rst:0x3 (RTC_SW_SYS_RST),boot:0x4 (SPI_FLASH_BOOT)
Saved PC:0x40055134
SPIWP:0xee
mode:DIO, clock div:1
load:0x3ffe8100,len:4
load:0x3ffe8104,len:6536
load:0x40050000,len:6292
load:0x40054000,len:8460
entry 0x40050314

[20:52:51.563]收←◆[0;32mI (78) boot: ESP-IDF v4.2-dev-2044-gdd3c032 2nd stage bootloader[0m
[0;32mI (78) boot: compile time 04:59:46[0m
[0;32mI (79) boot: chip revision: 0[0m
[0;31mE (81) boot_comm: mismatch chip ID, expected 2, found 0[0m
ESP-ROM:esp32s2-rc4-20191025
Build:Oct 25 2019
rst:0x3 (RTC_SW_SYS_RST),boot:0x4 (SPI_FLASH_BOOT)
Saved PC:0x40055134
SPIWP:0xee
mode:DIO, clock div:1
load:0x3ffe8100,len:4
load:0x3ffe8104,len:6536
load:0x40050000,len:6292
load:0x40054000,len:8460
entry 0x40050314

该芯片之前没有烧录过程序。
不知道有没有大佬知道该怎么解决?

ESP_Gargamel
Posts: 786
Joined: Wed Nov 14, 2018 8:45 am

Re: ESP32-S2无法正确进入BOOT模式

Postby ESP_Gargamel » Tue Aug 31, 2021 1:52 am

你这个并没有进入到烧写模式,你是用的模组自己飞线?那需要看下你的外围电路。另外,GPIO0 拉低后,EN 脚再拉低拉高做下复位,才能进入到烧写模式。

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