最近把ESP32系统以及外围电路移植到PCB底板上，在调试过程中，遇到的问题是：不烧写初始化wifi的固件时，底板正常工作。但是烧写需要初始化wifi的固件时，系统就不停地复位，打印重复的信息如下：
ets Jun 8 2016 00:22:57
rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:6428
load:0x40078000,len:11308
ho 0 tail 12 room 4
load:0x40080400,len:6672
entry 0x40080764
[0;32mI (31) boot: ESP-IDF v3.3-beta1-432-g5ec58c316 2nd stage bootloader[0m
[0;32mI (31) boot: compile time 16:22:41[0m
[0;32mI (31) boot: Enabling RNG early entropy source...[0m
[0;32mI (37) boot: SPI Speed : 40MHz[0m
[0;32mI (41) boot: SPI Mode : DIO[0m
[0;32mI (45) boot: SPI Flash Size : 4MB[0m
[0;32mI (49) boot: Partition Table:[0m
[0;32mI (53) boot: ## Label Usage Type ST Offset Length[0m
[0;32mI (60) boot: 0 nvs WiFi data 01 02 00009000 00004000[0m
[0;32mI (68) boot: 1 otadata OTA data 01 00 0000d000 00002000[0m
[0;32mI (75) boot: 2 phy_init RF data 01 01 0000f000 00001000[0m
[0;32mI (83) boot: 3 factory factory app 00 00 00010000 00100000[0m
[0;32mI (90) boot: 4 ota_0 OTA app 00 10 00110000 00100000[0m
[0;32mI (97) boot: 5 ota_1 OTA app 00 11 00210000 00100000[0m
[0;32mI (105) boot: End of partition table[0m
[0;32mI (109) boot: Defaulting to factory image[0m
[0;32mI (114) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x2c808 (182280) map[0m
[0;32mI (187) esp_image: segment 1: paddr=0x0003c830 vaddr=0x3ffb0000 size=0x032e8 ( 13032) load[0m
[0;32mI (192) esp_image: segment 2: paddr=0x0003fb20 vaddr=0x40080000 size=0x00400 ( 1024) load[0m
[0;32mI (194) esp_image: segment 3: paddr=0x0003ff28 vaddr=0x40080400 size=0x000e8 ( 232) load[0m
[0;32mI (203) esp_image: segment 4: paddr=0x00040018 vaddr=0x400d0018 size=0xad914 (710932) map[0m
[0;32mI (460) esp_image: segment 5: paddr=0x000ed934 vaddr=0x400804e8 size=0x10658 ( 67160) load[0m
[0;32mI (498) boot: Loaded app from partition at offset 0x10000[0m
[0;32mI (498) boot: Disabling RNG early entropy source...[0m
[0;32mI (499) cpu_start: Pro cpu up.[0m
[0;32mI (502) cpu_start: Application information:[0m
[0;32mI (507) cpu_start: Project name: smart_light[0m
[0;32mI (513) cpu_start: App version: v1.0-99-g1d5ba38-dirty[0m
[0;32mI (519) cpu_start: Compile time: 16:23:08[0m
[0;32mI (524) cpu_start: Compile date: Mar 12 2019[0m
[0;32mI (529) cpu_start: ESP-IDF: v3.3-beta1-432-g5ec58c316[0m
[0;32mI (536) cpu_start: Starting app cpu, entry point is 0x40081050[0m
[0;32mI (527) cpu_start: App cpu up.[0m
[0;32mI (546) heap_init: Initializing. RAM available for dynamic allocation:[0m
[0;32mI (553) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM[0m
[0;32mI (559) heap_init: At 3FFB9D40 len 000262C0 (152 KiB): DRAM[0m
[0;32mI (565) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM[0m
[0;32mI (572) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM[0m
[0;32mI (578) heap_init: At 40090B40 len 0000F4C0 (61 KiB): IRAM[0m
[0;32mI (584) cpu_start: Pro cpu start user code[0m
[0;32mI (267) cpu_start: Starting scheduler on PRO CPU.[0m
[0;32mI (0) cpu_start: Starting scheduler on APP CPU.[0m
[0;32mI (316) app main: IDF version: v3.3-beta1-432-g5ec58c316[0m
[0;32mI (316) app main: esp-aliyun verison: [0m
[0;32mI (316) app main: iotkit-embedded version: [0m
I (326) wifi: wifi driver task: 3ffc18e8, prio:23, stack:3584, core=0
I (326) wifi: wifi firmware version: 66a98c0
I (336) wifi: config NVS flash: enabled
I (336) wifi: config nano formating: disabled
[0;32mI (346) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE[0m
[0;32mI (356) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE[0m
I (386) wifi: Init dynamic tx buffer num: 32
I (386) wifi: Init data frame dynamic rx buffer num: 32
I (386) wifi: Init management frame dynamic rx buffer num: 32
I (386) wifi: Init static rx buffer size: 1600
I (386) wifi: Init static rx buffer num: 10
I (396) wifi: Init dynamic rx buffer num: 32
[0;33mW (396) phy_init: failed to load RF calibration data (0x1102), falling back to full calibration[0m
Brownout detector was triggered
请问有谁遇到这种问题吗，底板的供电是正常的。
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