From 148d53fa8636896db473391d68e90ba183cf9863 Mon Sep 17 00:00:00 2001
From: Samuel <samuel.kay@poivron-robotique.fr>
Date: Wed, 10 Sep 2025 13:03:19 +0200
Subject: [PATCH] Construction du tampon d'envoi en dehors de la boucle de
 performance

---
 .vscode/settings.json |  2 +-
 main.c                | 37 +++++++++++++++++++++++++++----------
 2 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/.vscode/settings.json b/.vscode/settings.json
index c988ddf..7668934 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,5 +1,5 @@
 {
     "files.associations": {
-
+        "stdio_usb.h": "c"
     }
 }
\ No newline at end of file
diff --git a/main.c b/main.c
index de277c0..c8a21ae 100644
--- a/main.c
+++ b/main.c
@@ -6,17 +6,37 @@
 #include "pico/stdlib.h"
 #include <stdio.h>
 
+void stdio_usb_out_chars(const char *buf, int length);
+
 #define NB_MORCEAUX 100
 
 absolute_time_t envoie_nb_char(int nb_char);
+char message[10000];
+
+void envoie_donnees(char * donnees, u_int16_t length){
+	for (int i=0; i<length; i++){
+		putchar(donnees[i]);
+	}
+}
+
 
 void main(void)
 {
 	absolute_time_t measured_time_us;
 	absolute_time_t temps_moyen, temps_max, temps_m[NB_MORCEAUX];
 	absolute_time_t current_time_us, start_time_us;
+
+	
+	for(int i=0; i<10000; i++){
+		/*j++;
+		if(j>25){
+			j=0;
+		}
+		message[i]= j + 'a';*/
+		message[i]= i%26 + 'a';
+	}
 	int nb_ech = 10;
-	int taille_morceau = 120;
+	int taille_morceau = 60;
 	stdio_init_all();
 	while(1){
 		temps_moyen = 0;
@@ -26,6 +46,7 @@ void main(void)
 			temps_max = 0;
 			start_time_us = get_absolute_time();
 			temps_m[i] = envoie_nb_char(taille_morceau);
+			//temps_m[i] = i;
 			current_time_us = get_absolute_time();
 			sleep_ms(1);
 		}
@@ -41,15 +62,7 @@ void main(void)
 absolute_time_t envoie_nb_char(int nb_char) {
 	absolute_time_t current_time_us, start_time_us;
 	int j=0;
-	char message[10000];
-	for(int i=0; i<10000; i++){
-		/*j++;
-		if(j>25){
-			j=0;
-		}
-		message[i]= j + 'a';*/
-		message[i]= i%26 + 'a';
-	}
+	
 	if (nb_char == 0){
 		return 0;
 	}
@@ -57,6 +70,10 @@ absolute_time_t envoie_nb_char(int nb_char) {
 	message[nb_char] = '\0';
 	start_time_us = get_absolute_time();
 	printf("%s", message);	
+	envoie_donnees(message, strlen(message));
+
 	current_time_us = get_absolute_time();
+	message[nb_char - 1] = 'a';
+	message[nb_char] = 'a';
 	return current_time_us - start_time_us;
 }