Arduino 1.8.5, esp-wrover-kit
The board is supplied from a beefy programmable power supply (set to 5.25V, capable of 5A) through the external power jack, using thick <20" short cables.
I flashed the Arduino example "SimpleWiFiServer", with my WiFi credentials and using GPIO2 (green part of the RGB LED) instead of GPIO5.
Everything "works" as expected, however after reloading the webpage a few times or sometimes even just waiting for a few minutes causes the ESP32 to reset with the infamous Guru error:
Code: Select all
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction)
. Exception was unhandled.
Core 0 register dump:
PC : 0x4011cfa8 PS : 0x00060630 A0 : 0x80118ccb A1 : 0x3ffd4920
A2 : 0x3ffc6164 A3 : 0x3ffc8958 A4 : 0x00000000 A5 : 0x00000000
A6 : 0x3ffd97f4 A7 : 0x00000000 A8 : 0x801187b9 A9 : 0x3ffd9830
A10 : 0x3ffd9830 A11 : 0x00000000 A12 : 0x00000005 A13 : 0x1e000107
A14 : 0x00000020 A15 : 0x00000001 SAR : 0x00000020 EXCCAUSE: 0x00000000
EXCVADDR: 0x00000000 LBEG : 0x4000c2e0 LEND : 0x4000c2f6 LCOUNT : 0xffffffff
Backtrace: 0x4011cfa8:0x3ffd4920 0x40118cc8:0x3ffd4960 0x40118fe1:0x3ffd4990 0x40087dd6:0x3ffd49c0
Rebooting...
I have to admit that I'm loosing a little faith into the ESP32. When even an official dev board, "optimal" power supply and a minimal (Arduino supplied) program crashes regurlarly......