ESP32 Forum

I have written a fairly complicated sketch and it was working just fine.... now it does not even get to setup()....

I get to https://github.com/espressif/esp-idf/bl ... t_access.c line 187 which asserts()

What can cause this??

Decoding stack results
0x40088ba8: invoke_abort at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./panic.c line 139
0x40088ca7: abort at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./panic.c line 148
0x40081467: lock_init_generic at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/newlib/./locks.c line 81
0x40081573: _lock_init_recursive at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/newlib/./locks.c line 95
0x4010d7fa: __sbprintf at ../../../.././newlib/libc/stdio/vfprintf.c line 481
0x4010b79d: _vfiprintf_r at ../../../.././newlib/libc/stdio/vfprintf.c line 875
0x40107985: fiprintf at ../../../.././newlib/libc/stdio/fiprintf.c line 50
0x400f8cdd: __assert_func at ../../../.././newlib/libc/stdlib/assert.c line 59
0x400fba9e: esp_dport_access_int_init at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./dport_access.c line 187
0x4008362d: start_cpu1_default at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./cpu_start.c line 385
0x40083675: call_start_cpu1 at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./cpu_start.c line 235

It's failed to create the "dport access" worker task. Probably this is because of an out of memory error. Try modifying your sketch to allocate less static RAM.

The heap normally just prior to calling setup() or at least at the top of setup() is 110KBytes, this is enough? I would hope so....

RichardS