esp c3下载程序一直重启

常见错误：

• 版本错误
• flash配置错误

1 版本错误

ESP-ROM:esp32c3-20200918
Build:Sep 18 2020
rst:0x3 (RTC_SW_SYS_RST),boot:0xc (SPI_FAST_FLASH_BOOT)
Saved PC:0x403d11a0
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd6100,len:0x1740
load:0x403ce000,len:0x8d4
load:0x403d0000,len:0x293c
entry 0x403ce000
I (34) boot: ESP-IDF v4.3 2nd stage bootloader
I (35) boot: compile time 23:37:02
I (35) boot: chip revision: 2
E (36) boot_comm: This chip is revision 2 but the application is configured for minimum revision 3. Can't run.
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芯片为老版本，非正式量产版。
如需使用，请在 ESP -IDF 中修改版本

• 1.命令：idf.py menuconfig
  

• 2.依次选择：Component config -> ESP32C3-Specific -> Minimum Supported ESP32-C3 Revision -> Rev 2 退出按Y保存
  

2 Flash配置错误

ESP-ROM:esp32c3-api1-20210207
Build:Feb  7 2021
rst:0x3 (RTC_SW_SYS_RST),boot:0xd (SPI_FAST_FLASH_BOOT)
Saved PC:0x4038058c


SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd5810,len:0x16bc
load:0x403cc710,len:0x930
load:0x403ce710,len:0x2d28
entry 0x403cc710
I (24) boot: ESP-IDF v4.4.3-dirty 2nd stage bootloader
I (24) boot: compile time 16:50:33
I (24) boot: chip revision: 3
I (26) boot.esp32c3: SPI Speed      : 80MHz
I (31) boot.esp32c3: SPI Mode       : DIO
I (36) boot.esp32c3: SPI Flash Size : 2MB
I (40) boot: Enabling RNG early entropy source...
...
W (231) spi_flash: Detected size(4096k) larger than the size in the binary image header(2048k). Using the size in the binary image header.
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修改flash

• 1.命令：idf.py menuconfig
  

• 2.依次选择：Serial flasher config -> Flash size -> 4 MB 退出按Y保存