From 0f2ea7deaf0cba2f0ca07f6611c5a9e87d531f5b Mon Sep 17 00:00:00 2001
From: "github-classroom[bot]"
 <66690702+github-classroom[bot]@users.noreply.github.com>
Date: Tue, 26 Aug 2025 17:03:24 +0000
Subject: Initial commit

---
 project_starter_files/Core/Src/demo.c | 55 +++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 project_starter_files/Core/Src/demo.c

(limited to 'project_starter_files/Core/Src/demo.c')

diff --git a/project_starter_files/Core/Src/demo.c b/project_starter_files/Core/Src/demo.c
new file mode 100644
index 0000000..d34b7e3
--- /dev/null
+++ b/project_starter_files/Core/Src/demo.c
@@ -0,0 +1,55 @@
+/*
+ * demo.c
+ *
+ *  Created on: Feb 14, 2021
+ *      Author: larry kiser
+ *  Updated on: Sept 6, 2021
+ *      Author: Mitesh Parikh
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+// Custom Include files
+#include "LED.h"
+#include "UART.h"
+#include "demo.h"
+#include "stm32l4xx.h"
+
+
+// This function is to create a delay by consuming CPU cycle on counter
+static void delay_loop( int value )
+{
+	// spin loop consuming CPU to spend time.
+	for (int i = 0; i < value; i++)
+		;
+}
+
+// This function is to print counter on UART port and toggle LED
+static void demo_of_UART_print(int counter){
+	int n ;
+	uint8_t buffer[BUFFER_SIZE];
+
+	n = sprintf((char *)buffer, "counter = %d\r\n", counter);
+	USART_Write(USART2, buffer, n);
+
+	delay_loop( 8000000 ) ;	// comment this out when you are ready to test delay_systick
+	// delay_systick() ;	// enable this when you are ready to test
+
+	// Toggle LED
+	LED_Toggle();
+}
+
+void run_demo(){
+	
+	int counter = 0;
+	
+	// Run a loop to print counter value on UART port
+	while (1)
+	{
+		//demo_of_printf_scanf();
+		demo_of_UART_print(counter);
+		counter++;
+	}
+}
+
-- 
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