Trying to use core 0 on TTGO Lilygo v1.6

[alainbo]

I tried to use FreeRTOS on ttgo v1.6 board embedding an ESP32 microcontroller.

I'm using xCreateTaskPinnedToCore() to create 2 tasks, one to drive a:servo motor and the other one to debug, send data via WiFi or store on SDCard.

Everything is OK when I create the tasks on core 1, the défaut one, but if I try to pin a task to core 0, this one behave strangely or even freezes.

I read that core 0 is used by WiFi and Lora stacks, but I'm not really sure having well understood the architecture.
Does it explain we cannot execute any task on core 0?

[mikb55]

Does the serial monitor print out any RTOS related error messages?

[alainbo]

I don't think so, but I'll have to recheck and I couldn't do it before the end of week.
Anyway when I assign the debug task on core 0, driving an old display connected to i2c, I can't drive the display correctly.
And when I
Assign the high speed task on core 0 which drives a servo motor based on ICM20948 infos at a cycle time of 1.5 ms l, everything is freezed.

[killzone_kid]

Choose Verbose error reporting in upload options

[alainbo]

I'll try it

[alainbo]

I enabled core verbosity and is what I get, seems to not output any error!

configsip: 188777542, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:10124
load:0x40080400,len:5856
entry 0x400806a8
[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 2 - STA_START
ESP-NOW initialized : 30:83:98:DC:CD:1C
Sending to Peer 0C:DC:7E:62:D5:48

Initializing SD card...initialization failed!
Enable DLPF for Accelerometer returned: All is well.
Enable DLPF for Gyroscope returned: All is well.

Configuration complete!

But this is the unsynchronised display I get, when it's on core 0:

instead of this on core 1: