[Code Fix] 'i2s_pop_sample' was not declared in this scope (ESP 2.0.X)

ESP32_MICROPHONE/ESP32_INMP441_SETUP_ESP-2.X/ESP32_INMP441_SETUP_ESP-2.X.ino

@@ -0,0 +1,55 @@
+#include <driver/i2s.h>
+#define I2S_WS 15
+#define I2S_SD 13
+#define I2S_SCK 2
+#define I2S_PORT I2S_NUM_0
+#define bufferLen 64
+
+int16_t sBuffer[bufferLen];
+void setup() {
+  Serial.begin(115200);
+  Serial.println("Setup I2S ...");
+
+  delay(1000);
+  i2s_install();
+  i2s_setpin();
+  i2s_start(I2S_PORT);
+  delay(500);
+}
+
+void loop() {
+
+  size_t bytesIn = 0;
+  esp_err_t result = i2s_read(I2S_PORT, sBuffer, sizeof(sBuffer), &bytesIn, portMAX_DELAY);
+  if (result == ESP_OK && bytesIn > 0)
+  {
+    Serial.println(bytesIn);  
+  }
+}
+
+void i2s_install(){
+  const i2s_config_t i2s_config = {
+    .mode = i2s_mode_t(I2S_MODE_MASTER | I2S_MODE_RX),
+    .sample_rate = 44100,
+    .bits_per_sample = i2s_bits_per_sample_t(16),
+    .channel_format = I2S_CHANNEL_FMT_ONLY_LEFT,
+    .communication_format = i2s_comm_format_t(I2S_COMM_FORMAT_STAND_I2S),
+    .intr_alloc_flags = 0, // default interrupt priority
+    .dma_buf_count = 8,
+    .dma_buf_len = bufferLen,
+    .use_apll = false
+  };
+
+  i2s_driver_install(I2S_PORT, &i2s_config, 0, NULL);
+}
+
+void i2s_setpin(){
+  const i2s_pin_config_t pin_config = {
+    .bck_io_num = I2S_SCK,
+    .ws_io_num = I2S_WS,
+    .data_out_num = -1,
+    .data_in_num = I2S_SD
+  };
+
+  i2s_set_pin(I2S_PORT, &pin_config);
+}