diff --git a/make.sh b/make.sh
index 66e1f5c..253adcf 100755
--- a/make.sh
+++ b/make.sh
@@ -27,6 +27,7 @@ build () {
 		echo "Fait."
 		return 0
 	elif [[ $1 == "test" ]]; then
+		[ -f "$OUT/test_"* ] && rm "$OUT/test_"*
 		for i in "test/"*".c"; do
 			echo "Compilation de $i"
 			$CC "$i" -o "$OUT/test_$(echo $i | awk -F. '{print $1}' | awk -F/ '{print $NF}')" $FLAGS
@@ -34,6 +35,8 @@ build () {
 		done
 		if ! command -v nvcc &> /dev/null; then
 			echo "Tests CUDA évités"
+		elif [[ $SKIP_CUDA == 1 ]]; then
+			echo "Tests CUDA évités"
 		else
 			for i in "test/"*".cu"; do
 				echo "Compilation de $i"
diff --git a/src/cnn/creation.c b/src/cnn/creation.c
index c1017d7..8bae025 100644
--- a/src/cnn/creation.c
+++ b/src/cnn/creation.c
@@ -2,7 +2,7 @@
 #include <stdlib.h>
 #include "include/creation.h"
 #include "include/function.h"
-#include "include/initialisation.h"
+#include "initialisation.c"
 
 Network* create_network(int max_size, int dropout, int initialisation, int input_dim, int input_depth) {
     if (dropout < 0 || dropout > 100) {
diff --git a/src/cnn/include/creation.h b/src/cnn/include/creation.h
index 0bad98d..10847d3 100644
--- a/src/cnn/include/creation.h
+++ b/src/cnn/include/creation.h
@@ -1,4 +1,5 @@
 #include "struct.h"
+#include "initialisation.h"
 
 #ifndef DEF_CREATION_H
 #define DEF_CREATION_H
diff --git a/src/cnn/include/neuron_io.h b/src/cnn/include/neuron_io.h
new file mode 100644
index 0000000..e815a3e
--- /dev/null
+++ b/src/cnn/include/neuron_io.h
@@ -0,0 +1,24 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include "struct.h"
+
+#ifndef DEF_NEURON_IO_H
+#define DEF_NEURON_IO_H
+
+
+
+// Écriture d'un réseau neuronal 
+
+/*
+* Écrit un réseau neuronal dans un fichier donné
+*/
+void write_network(char* filename, Network* network);
+
+/*
+* Écrit une couche dans le fichier spécifié par le pointeur ptr
+*/
+void write_couche(Kernel* kernel, int type_couche, FILE* ptr);
+#endif
\ No newline at end of file
diff --git a/src/cnn/neuron_io.c b/src/cnn/neuron_io.c
new file mode 100644
index 0000000..aa734fd
--- /dev/null
+++ b/src/cnn/neuron_io.c
@@ -0,0 +1,96 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include "include/neuron_io.h"
+#include "include/struct.h"
+
+#define MAGIC_NUMBER 9023
+
+void write_network(char* filename, Network* network) {
+    FILE *ptr;
+    int size = network->size;
+    int type_couche[size];
+
+    ptr = fopen(filename, "wb");
+
+    uint32_t buffer[(network->size)*3+4];
+
+    buffer[0] = MAGIC_NUMBER;
+    buffer[1] = size;
+    buffer[2] = network->initialisation;
+    buffer[3] = network->dropout;
+
+    for (int i=0; i < size; i++) {
+        buffer[2*i+4] = network->width[i];
+        buffer[2*i+5] = network->depth[i];
+    }
+
+    for (int i=0; i < size; i++) {
+        if ((!network->kernel[i]->cnn)&&(!network->kernel[i]->nn)) {
+            type_couche[i] = 2;
+        } else if (!network->kernel[i]->cnn) {
+            type_couche[i] = 1;
+        } else {
+            type_couche[i] = 0;
+        }
+        buffer[i+2*size+4] = type_couche[i];
+    }
+
+    fwrite(buffer, sizeof(buffer), 1, ptr);
+
+
+    for (int i=0; i < size; i++) {
+        write_couche(network->kernel[i], type_couche[i], ptr);
+    }
+
+    fclose(ptr);
+}
+
+
+void write_couche(Kernel* kernel, int type_couche, FILE* ptr) {
+    uint32_t activation[1];
+    int indice;
+
+    activation[0] = kernel->activation;
+
+    fwrite(activation, sizeof(activation), 1, ptr);
+    if (type_couche == 0) {
+        Kernel_cnn* cnn = kernel->cnn;
+        float buffer[2*cnn->k_size*cnn->k_size*cnn->columns*(cnn->rows+1)];
+        for (int i=0; i < cnn->columns; i++) {
+            for (int j=0; j < cnn->k_size; j++) {
+                for (int k=0; k < cnn->k_size; k++) {
+                    indice = cnn->k_size*(i*cnn->k_size+j)+k;
+                    buffer[indice] = cnn->bias[i][j][k];
+                }
+            }
+        }
+        int av_bias = cnn->columns*cnn->k_size*cnn->k_size;
+        for (int i=0; i < cnn->rows; i++) {
+            for (int j=0; j < cnn->columns; j++) {
+                for (int k=0; k < cnn->k_size; k++) {
+                    for (int l=0; l < cnn->k_size; l++) {
+                        indice = ((i*cnn->columns+j)*cnn->k_size+k)*cnn->k_size+l+av_bias;
+                        buffer[indice] = cnn->w[i][j][k][l];
+                    }
+                }
+            }
+        }
+        fwrite(buffer, sizeof(buffer), 1, ptr);
+    } else if (type_couche == 1) {
+        Kernel_nn* nn = kernel->nn;
+        float buffer[(1+nn->input_units)*nn->output_units];
+        for (int i=0; i < nn->output_units; i++) {
+            buffer[i] = nn->bias[i];
+        }
+        int av_bias = nn->output_units;
+        for (int i=0; i < nn->input_units; i++) {
+            for (int j=0; j < nn->output_units; j++) {
+                buffer[i*nn->output_units+j+av_bias] = nn->weights[i][j];
+            }
+        }
+        fwrite(buffer, sizeof(buffer), 1, ptr);
+    }
+}
\ No newline at end of file
diff --git a/test/cnn_neuron_io.c b/test/cnn_neuron_io.c
new file mode 100644
index 0000000..c2e74ae
--- /dev/null
+++ b/test/cnn_neuron_io.c
@@ -0,0 +1,28 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include "../src/cnn/neuron_io.c"
+#include "../src/cnn/creation.c"
+
+
+
+int main() {
+    printf("Création du réseau\n");
+    Network* network = create_network_lenet5(0, 3, 2);
+    printf("OK\n");
+
+    printf("Écriture du réseau\n");
+    write_network(".test-cache/cnn_neuron_io.bin", network);
+    printf("OK\n");
+
+    /*
+    printf("Vérification de l'accès en lecture\n");
+    Network* network2 = read_network(".test-cache/neuron_io.bin");
+    printf("OK\n");
+    deletion_of_network(network);
+    deletion_of_network(network2);
+    */
+    return 0;
+}
\ No newline at end of file
diff --git a/test/neuron_io.c b/test/mnist_neuron_io.c
similarity index 100%
rename from test/neuron_io.c
rename to test/mnist_neuron_io.c