m5stack-starter

Includes WIFI, display driver, and reads some buttons.

The intent is for this to have support for all those features that I would expect to want in most quick m5stack programs. All it does presently is connect to wifi, get the time, and respond to mDNS requests.

Building

make menuconfig You'll need to set the wifi username and password here, at least.

make

export ESPPORT=/dev/tty.myportdevice

make flash

References

The TFT library is from https://github.com/loboris/ESP32_TFT_library

Notes

Converting exception backtrace addresses to lines

When you get a panic message like this one:

Guru Meditation Error: Core  0 panic'ed (LoadProhibited). Exception was unhandled.
Core 0 register dump:
PC      : 0x400848ab  PS      : 0x00060630  A0      : 0x80084b0d  A1      : 0x3ffbf2d0
A2      : 0x00000001  A3      : 0x00000000  A4      : 0x3ffc5144  A5      : 0x00000000
A6      : 0x00000000  A7      : 0xff000000  A8      : 0x00000000  A9      : 0x3ffbf190
A10     : 0x00000000  A11     : 0x00000000  A12     : 0x00000000  A13     : 0x00000000
A14     : 0x00000000  A15     : 0x00000000  SAR     : 0x00000004  EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000024  LBEG    : 0x4000c2e0  LEND    : 0x4000c2f6  LCOUNT  : 0xffffffff

Backtrace: 0x400848ab:0x3ffbf2d0 0x40084b0a:0x3ffbf2f0 0x40084c7e:0x3ffbf310 0x400ed055:0x3ffbf340 0x400d3223:0x3ffbf370

Copy/paste those backtrace addresses and use xtensa-esp32-elf-addr2line: xtensa-esp32-elf-addr2line 0x400848ab:0x3ffbf2d0 0x40084b0a:0x3ffbf2f0 0x40084c7e:0x3ffbf310 0x400ed055:0x3ffbf340 0x400d3223:0x3ffbf370