I think I just bricked ESP32

[andrew_p]

I was playing with Sparkfun ESP32 thing and then it stopped working properly. I can flash it, but any code (working applications) I try it just doesn't work. This is the log from a serial monitor, and the log is the same for any code I flash:

Code: Select all

I (2660) cpu_start: Pro cpu up.
I (2695) cpu_start: Starting app cpu, entry point is 0x40080bf0
I (0) cpu_start: App cpu up.
I (2789) cpu_start: Pro cpu start user code
Guru Meditation Error of type StoreProhibited occurred on core  0. Exception was unhandled.
Register dump:
PC      : 0x401282a1  PS      : 0x00060d30  A0      : 0x80100051  A1      : 0x3ffe3a20  
A2      : 0x00000000  A3      : 0x3ffe3a60  A4      : 0x00000000  A5      : 0x00000000  
A6      : 0x00000020  A7      : 0x0000e0c0  A8      : 0x00000000  A9      : 0x3ffe3a00  
A10     : 0x00000000  A11     : 0x4008180c  A12     : 0x00000010  A13     : 0x00000000  
A14     : 0x785fda9c  A15     : 0x3ffc32d8  SAR     : 0x00000006  EXCCAUSE: 0x0000001d  
EXCVADDR: 0x00000000  LBEG    : 0x40001609  LEND    : 0x4000160d  LCOUNT  : 0x00000000  

Backtrace: 0x401282a1:0x3ffe3a20 0x40100051:0x3ffe3a40 0x40100cd1:0x3ffe3a60 0x40100dae:0x3ffe3ae0 0x40101490:0x3ffe3b40 0x400ffbac:0x3ffe3ba0 0x400ff846:0x3ffe3bf0 0x400ff896:0x3ffe3c10 0x40080a58:0x3ffe3c30 0x40080bbf:0x3ffe3c60 0x40078365:0x3ffe3ca0 0x4007857c:0x3ffe3cd0 0x40078ab4:0x3ffe3d50 0x40080101:0x3ffe3e70 0x40007c34:0x3ffe3eb0 0x40000740:0x3ffe3f20

          Rebooting...
ets Jun  8 2016 00:22:57

rst:0x3 (SW_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:0x3ffc0008,len:4
load:0x3ffc000c,len:2928
ho 0 tail 12 room 4
load:0x40078000,len:4216
ho 0 tail 12 room 4
load:0x40080000,len:260
entry 0x40080034

Is there any way to 'reset' it somehow or something like that?

[WiFive]

Erase complete flash with esptool, make sure your SDK and submodules and toolchain up to date, generate a new sdkconfig, do make clean and make flash.

[andrew_p]

Erasing flash with esptool.py helped! Thanks!