Flash problem of ESP32-WROOM

[lzr325]

When first poweron, internal bootloader tells "flash read err, 1000" every times.
It means chip can not read the spi flash,
but when i reset the device, the chance of the problem are smaller.

Problem:

Code: Select all

ets Jun  8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
flash read err, 1000
ets_main.c 371 
ets Jun  8 2016 00:22:57

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0x00
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0008,len:8
load:0x3fff0010,len:44
ho 0 tail 12 room 4
load:0x40078000,len:6044
load:0x40080000,len:252
entry 0x40080034

Normal:

Code: Select all

ets Jun  8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0x00
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0008,len:8
load:0x3fff0010,len:44
ho 0 tail 12 room 4
load:0x40078000,len:6044
load:0x40080000,len:252
entry 0x40080034

A hardware problem? Need to change a spi flash?