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/***********************************************************************/
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/* */
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/* FILE :SP4b1.c */
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/* DATE :Wed, Jun 02, 2021 */
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/* DESCRIPTION :main program file. */
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/* CPU GROUP :87B */
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/* */
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/* This file is generated by Renesas Project Generator (Ver.4.18). */
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/* NOTE:THIS IS A TYPICAL EXAMPLE. */
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/***********************************************************************/
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#include "sfr32c87.h"
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void uart0_init(void); // Initialisation du port s?rie
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void uart0_tx(char c); //Envoie d'un caract?re
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char uart0_rx(void); //Fonction d'attente et lecture d'un caract?re
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int rectrame(char * Buffer);
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char * Buff;
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void main(void)
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{
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uart0_init();
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while(1){
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uart0_tx(rectrame(Buff));
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}
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}
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void uart0_init(void){
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u0mr = 0x05;
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u0brg = 32;
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u0c0 = 0x11;
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u0c1 = 0x05;
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pd6_0 = 0;
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pd6_1 = 0;
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pd6_2 = 0;
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pd6_3 = 1; //On affecte seulement les bits que l'on a besoin pour le bon fonctionnement
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ps0_3 = 1;
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}
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void uart0_tx(char c){
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while (ti_u0c1 != 1);
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u0tb = c;
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}
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char uart0_rx(void){
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while (ri_u0c1 != 1);
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return u0rb;
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}
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int rectrame(char * Buffer){
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int i = 0;
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char car_recu;
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char checksum = '0';
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car_recu = uart0_rx();
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while (car_recu != '$'){
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i = 0;
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checksum = '0';
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}
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while (car_recu != '*'){
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Buffer[i++] = car_recu;
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checksum = checksum ^ car_recu; // ^ est le ou exclusif
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}
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return i;
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}
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