ESP32 multiprocessing with two I2C communication channels

[dmr-rocha]

Hello!

I'm doing a project in which I use the two processors separately and two I2C channels ( TwoWire ), where in each processor I use an I2C channel.

The Zero Processor is used for sensor reading routines through the I2C channel (INA219, BME680, ADS1115, DS1302), storing the values in global variables .

The Processor A use for the other routines and control of the LCD and keyboard, both I2C and demonstration of the values of the global variables .

In the compilation everything works , but after turning on Esp32 it works for a few seconds and then crashes.

I'm using I2C as follows :

TwoWire I2C_1 = TwoWire ( 0);
TwoWire I2C_2 = TwoWire ( 1);

I2C_ 1.begin (21, 22, 100000);
I2C_ 2.begin (15, 4, 100000);

The Processors I am creating as follows :

xTaskCreatePinnedToCore ( CoreZero , " CoreZero ", 16392, NULL, 5, NULL, 0);
delay ( 500);

xTaskCreatePinnedToCore ( CoreOne , " CoreOne ", 16392, NULL, 5, NULL, 1);
delay ( 500);

void loop( ) {

vTaskDelete ( NULL);

}

Observation:

The processors being used one without routine in the other works perfectly, however the two connected together does not work.

I need help trying to clarify the problem and whoever helps me to clarify I will give a payment.

Thanks.

[ESP_Sprite]

Can you post your (full) code?

[gtjoseph]

Also... a dup of https://www.esp32.com/viewtopic.php?f=2&t=28164