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[ESP32] Explicitly pin I2S stepper task to core 1 to prevent interference with WiFi task on core 0 #16874

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Feb 16, 2020
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[ESP32] Explicitly pin I2S stepper task to core 1 to prevent interference with WiFi task on core 0 #16874

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2 changes: 1 addition & 1 deletion Marlin/src/HAL/HAL_ESP32/i2s.cpp
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Expand Up @@ -308,7 +308,7 @@ int i2s_init() {
esp_intr_enable(i2s_isr_handle);

// Create the task that will feed the buffer
xTaskCreate(stepperTask, "StepperTask", 10000, nullptr, 1, nullptr);
xTaskCreatePinnedToCore(stepperTask, "StepperTask", 10000, nullptr, 1, nullptr, CONFIG_ARDUINO_RUNNING_CORE); // run I2S stepper task on same core as rest of Marlin

// Route the i2s pins to the appropriate GPIO
gpio_matrix_out_check(I2S_DATA, I2S0O_DATA_OUT23_IDX, 0, 0);
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4 changes: 2 additions & 2 deletions Marlin/src/core/boards.h
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Expand Up @@ -335,8 +335,8 @@
// Espressif ESP32 WiFi
//
#define BOARD_ESPRESSIF_ESP32 6000 // Generic ESP32
#define BOARD_MRR_ESPA 6001
#define BOARD_MRR_ESPE 6002
#define BOARD_MRR_ESPA 6001 // MRR ESPA board based on ESP32 (native pins only)
#define BOARD_MRR_ESPE 6002 // MRR ESPE board based on ESP32 (with I2S stepper stream)
#define BOARD_E4D_BOX 6003 // E4d@BOX

//
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