We have used ESP32-WROVER-I module into one of our running EV Charging based product which is working fine and already went into couple of field testing.
Suddenly we received news from customer that Board is not working which was working earlier and found after doing some analysis that Board is contineoulsy rebooting.
Then We also checked Flash Size and Flash ID using command which are belowst:0x10 (RTCWDT_RTC_RESET),boot:0x1f (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:0xff001cff,len:1568831
1150 mmu set 00010000, pos 00010000
1150 mmu set 00020000, pos 00020000
1150 mmu set 00030000, pos 00030000
1150 mmu set 00040000, pos 00040000
1150 mmu set 00050000, pos 00050000
1150 mmu set 00060000, pos 00060000
1150 mmu set 00070000, pos 00070000
1150 mmu set 00080000, pos 00080000
1150 mmu set 00090000, pos 00090000
ets Jul 29 2019 12:21:46
rst:0x10 (RTCWDT_RTC_RESET),boot:0x1f (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:0xff001cff,len:1568831
1150 mmu set 00010000, pos 00010000
1150 mmu set 00020000, pos 00020000
1150 mmu set 00030000, pos 00030000
1150 mmu set 00040000, pos 00040000
1150 mmu set 00050000, pos 00050000
1150 mmu set 00060000, pos 00060000
1150 mmu set 00070000, pos 00070000
1150 mmu set 00080000, pos 00080000
1150 mmu set 00090000, pos 00090000
ets Jul 29 2019 12:21:46
rst:0x10 (RTCWDT_RTC_RESET),boot:0x1f (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:0xff001cff,len:1568831
1150 mmu set 00010000, pos 00010000
1150 mmu set 00020000, pos 00020000
1150 mmu set 00030000, pos 00030000
1150 mmu set 00040000, pos 00040000
1150 mmu set 00050000, pos 00050000
1150 mmu set 00060000, pos 00060000
1150 mmu set 00070000, pos 00070000
1150 mmu set 00080000, pos 00080000
1150 mmu set 00090000, pos 00090000
ets Jul 29 2019 12:21:46
Would you please suggest us what can be the issue for this kind of damage? Can it be due to Voltage Fluctuation or something else?Chip is ESP32D0WDQ5 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
MAC: 44:17:93:42:fd:70
Uploading stub...
Running stub...
Stub running...
Manufacturer: 00
Device: 0000
Detected flash size: Unknown
Chip is ESP32D0WDQ5 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
MAC: 44:17:93:42:fd:70
Uploading stub...
Running stub...
Stub running...
Status value: 0x0000
Let me know if need anything else from my end.