Revision 0:a97bb693dee7, committed 2018-12-19

Comitter:

jimbaud

Date:

Wed Dec 19 09:44:38 2018 +0000

Commit message:

USART communication using Printf and scanf

Changed in this revision

diff -r 000000000000 -r a97bb693dee7 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Dec 19 09:44:38 2018 +0000
@@ -0,0 +1,76 @@
+/* 
+https://os.mbed.com/docs/v5.7/reference/serial.html 
+https://fr.wikiversity.org/wiki/Langage_C/Entr%C3%A9es-sorties 
+*/
+
+#include "mbed.h"
+
+// Hyperterminal configuration
+// 9600 bauds, 8-bit data, no parity Configuration du port COM
+Serial pc(SERIAL_TX, SERIAL_RX); //Association à pc le port série de l’interface ST-link
+DigitalOut myled(LED1);
+
+//Exemple 1 : écriture sur le port COM
+
+int main()
+        { int i = 1; // Variable locale i mise à 1
+        pc.printf("Hello World !\n"); //Impression sur le port pc de Hello world
+        
+        while(1) {
+                    wait(1);
+                    pc.printf("This program runs since %d seconds.\n", i++); //Impression sur le port pc de …
+                    myled = !myled;
+                }
+        }       
+
+/*
+//Exemple 2 : Lecture sur le port COM 
+// https://os.mbed.com/docs/v5.7/reference/serial.html
+
+
+int main()
+{
+pc.printf("Press '1' to turn LED1 ON, '0' to turn it OFF\n");
+while(1) {
+            char c = pc.getc(); // Read hyperterminal
+            if (c == '0') {
+                            led = 0; // OFF
+                            }
+            if (c == '1') {
+                            led = 1; // ON
+                            }
+        }
+}
+
+*/
+
+/*
+// Exemple 3 : utilisation de scanf et printf
+int main() {
+            int num;
+            while(1) {
+                        pc.printf("Input any integer number: ");
+                        pc.scanf("%i", &num);
+                        pc.printf("\r\nnum = %d\r\n", num);
+                        pc.printf("num^2 = %d\r\n", num*num);
+                        }
+            }
+*/
+
+/* 
+//Example 3 : utilisation de pointeurs
+int main(void)
+{
+while (1) {
+            int value = 0;
+            int *pValue = &value; // Set pointer to refer to value.
+            pc.printf ("Enter an integer: ");
+            pc.scanf(" %d", pValue); // Read into value via the pointer.
+            pc.printf("You entered %d (base 10).\n", value); // Display the value entered.
+            pc.printf("Which is %x (base 16).\n", value); // Display the value entered.
+            pc.printf("Done. Now I sleep.\n");
+            wait(2);
+            }
+}
+
+*/
\ No newline at end of file

diff -r 000000000000 -r a97bb693dee7 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Dec 19 09:44:38 2018 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/3a7713b1edbc
\ No newline at end of file