Shared SPI LVGL and MAX31865

How-to
1

Hi, I’m trying to attaching LVGL and MAX31865 with same SPI pin with different CS. but as soon as i initate both feacture, it does not works.

ESP32 Wrover-E
Arduino 2.3.2
MAX31865
IL9341
LVGL 9.0

#define CS0_PIN         15  // TFT Module CS
#define CS1_PIN         27  // MAX31865 Modules CS
.....

Adafruit_MAX31865 thermo0 = Adafruit_MAX31865(CS1_PIN, MOSI_PIN, MISO_PIN, SCLK_PIN);

void setup()
{
.....
    pinMode(CS0_PIN, OUTPUT);
    pinMode(CS1_PIN, OUTPUT);



    thermo0.begin(MAX31865_3WIRE);
    lv_init();
.....

}


void loop()
{

    digitalWrite(CS0_PIN, LOW);
    digitalWrite(CS1_PIN, HIGH);

    lv____task();

    digitalWrite(CS0_PIN, HIGH);
    digitalWrite(CS1_PIN, LOW);

    max31865____task();

}

CS0_PIN pin also, set in the user_setup.h of TFTP_eSPI.

Whatever i changed HIGH/LOW or pinmode to OUTPUT/INPUT it does not works. Yes, sure it works in the separate mode. anyone knows how to share the CS mode ? thanks in advance.

BR
HS

2

Solved.

It does not needed to assign the PinMode and selecting the CS Status(HIGH/LOW) at all. also, Adafruit_MAX31865 creation needed only CS pin only. Anyhow, thank you. cheers.

Adafruit_MAX31865 thermo0 = Adafruit_MAX31865(CS1_PIN);
Adafruit_MAX31865 thermo1 = Adafruit_MAX31865(CS2_PIN);

void setup()
{
    thermo0.begin(MAX31865_3WIRE);  // set to 2WIRE or 4WIRE as necessary
    thermo1.begin(MAX31865_3WIRE);  // set to 2WIRE or 4WIRE as necessary

    lv_init();
}

BR
HS