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#define N 14320
#include <Preferences.h>
Preferences donnees;

void setup() {
   Serial.begin(115200);
  donnees.begin("Network", false, "network"); // namespace, readonly, partition name
  Serial.println("Initializing TEMP array");
  // for (int i = 0; i < N; ++i) printf("temp[%d] = %f\n", i, temp[i]);
  float* temp;
  temp = (float*)malloc(N * sizeof(float));
  for (int i = 0; i < N; ++i) {
    temp[i] = i * i / 5.0;
  }
  printf("temp[1] = %f\n", temp[1]);
  printf("temp[N-1] = %f\n", temp[N - 1]);
  printf("Free RAM: %d\n", esp_get_free_heap_size());
  Serial.println("Moving TEMP to flash");
  donnees.putBytes("data", temp, N * sizeof(float));
  Serial.println("Erasing TEMP");
  free(temp);
  printf("temp[0] = %f\n", temp[0]);
  printf("Free RAM: %d\n", esp_get_free_heap_size());

  Serial.println("Creating IN and OUT arrays");
  float* in;
  in = (float*)malloc(N * sizeof(float));
  float* out;
  out = (float*)malloc(N * sizeof(float));
  printf("Free RAM: %d\n", esp_get_free_heap_size());

  Serial.println("Reading IN from flash");
  donnees.getBytes("data", in, N * sizeof(float));
  Serial.println("Testing IN:");
  printf("in[1] = %f\n", in[1]);
  printf("in[N-1] = %f\n", in[N - 1]);
  //  for (int i = 0; i < N; ++i) printf("in[%d] = %f\n", i, in[i]);
  Serial.println("Computing OUT");
  for (int i = 0; i < N; ++i) out[i] = in[i] * 2.0;
  Serial.println("Testing OUT:");
  printf("out[1] = %f\n", out[1]);
  printf("out[N-1] = %f\n", out[N - 1]);
  Serial.println("Moving OUT to IN");
  in = out;
  Serial.println("Testing IN:");
  printf("in[1] = %f\n", in[1]);
  printf("in[N-1] = %f\n", in[N - 1]);
}

void loop() {
  // put your main code here, to run repeatedly:
}