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SerialConsoleTemplate/Src/main.c

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+/**
+  ******************************************************************************
+  * @file    main.c
+  * @author  Auto-generated by STM32CubeIDE
+  * @version V1.0
+  * @brief   Default main function.
+  ******************************************************************************
+*/
+
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "uart_driver.h"
+
+#define F_CPU 16000000UL
+
+#define ARSIZE  10
+
+main(){
+	init_usart2(57600,F_CPU);
+	int ch_arr[ARSIZE],count1;
+	int count2, stop, lastchar;
+
+	lastchar = 0;
+	stop = 0;
+	/*
+ 	 * Read characters into array.
+ 	 * Stop if end of line, or array full.
+ 	 */
+	while(stop != 1){
+		ch_arr[lastchar] = getchar();
+		if(ch_arr[lastchar] == '\n')
+				stop = 1;
+		else
+				lastchar = lastchar + 1;
+		if(lastchar == ARSIZE)
+			stop = 1;
+	}lastchar = lastchar-1;
+	/*
+ 	 * Now the traditional bubble sort.
+ 	 */
+	count1 = 0;
+	while(count1 < lastchar){
+		count2 = count1 + 1;
+			while(count2 <= lastchar){
+				if(ch_arr[count1] > ch_arr[count2]){
+				/* swap */
+				int temp;
+				temp = ch_arr[count1];
+				ch_arr[count1] = ch_arr[count2];
+				ch_arr[count2] = temp;
+			}
+			count2 = count2 + 1;
+		}
+		count1 = count1 + 1;
+	}
+
+	count1 = 0;
+	while(count1 <= lastchar){
+		printf("%c\n", ch_arr[count1]);
+		count1 = count1 + 1;
+	}
+	exit(EXIT_SUCCESS);
+}
+