From 898fce80c309b06d829cb692613a4353d44b2667 Mon Sep 17 00:00:00 2001
From: sowgro <tpoke.ferrari@gmail.com>
Date: Tue, 28 Oct 2025 15:19:02 -0400
Subject: push activity10

---
 project/Core/Inc/Activities/activity10.h | 13 +++++++++++++
 project/Core/Src/Activties/activity10.c  | 27 +++++++++++++++++++++++++++
 project/Core/Src/System/systick.c        |  3 ++-
 project/Core/Src/main.c                  |  4 ++--
 4 files changed, 44 insertions(+), 3 deletions(-)
 create mode 100644 project/Core/Inc/Activities/activity10.h
 create mode 100644 project/Core/Src/Activties/activity10.c

diff --git a/project/Core/Inc/Activities/activity10.h b/project/Core/Inc/Activities/activity10.h
new file mode 100644
index 0000000..ccc7086
--- /dev/null
+++ b/project/Core/Inc/Activities/activity10.h
@@ -0,0 +1,13 @@
+/*
+ * activity10.h
+ *
+ *  Created on: Oct 28, 2025
+ *      Author: sowgro
+ */
+
+#ifndef INC_ACTIVITIES_ACTIVITY10_H_
+#define INC_ACTIVITIES_ACTIVITY10_H_
+
+void activity10_run();
+
+#endif /* INC_ACTIVITIES_ACTIVITY10_H_ */
diff --git a/project/Core/Src/Activties/activity10.c b/project/Core/Src/Activties/activity10.c
new file mode 100644
index 0000000..78261ff
--- /dev/null
+++ b/project/Core/Src/Activties/activity10.c
@@ -0,0 +1,27 @@
+/*
+ * activity10.c
+ *
+ *  Created on: Oct 28, 2025
+ *      Author: sowgro
+ */
+// create a clock that prints once per second using interrupts
+// configure systick handler for interrupts
+// write interrupt handler
+// print every second
+
+#include "systick.h"
+#include <stdio.h>
+
+void activity10_run() {
+	init_systick();
+}
+
+void SysTick_Handler() {
+	static int i = 0;
+	i++;
+
+	if (!(i & 1023)) {
+		printf("%d\r\n", i>>10);
+	}
+
+}
diff --git a/project/Core/Src/System/systick.c b/project/Core/Src/System/systick.c
index a9e38c7..ac3a731 100644
--- a/project/Core/Src/System/systick.c
+++ b/project/Core/Src/System/systick.c
@@ -18,7 +18,8 @@ void init_systick()
 
 	s->CSR &= ~1;
 	s->CSR |= 1<<2;
-	s->RVR = 8000000; // 100 ms
+	s->CSR |= 1<<1; // enable interrupt
+	s->RVR = 78124; // 100 ms
 	s->CSR |= 1;
 }
 
diff --git a/project/Core/Src/main.c b/project/Core/Src/main.c
index bb18077..9aac659 100644
--- a/project/Core/Src/main.c
+++ b/project/Core/Src/main.c
@@ -8,7 +8,7 @@
 #include "LED.h"
 #include "UART.h"
 #include "demo.h"
-#include "activity7.h"
+#include "activity10.h"
 #include <stdio.h>
 #include "hw4.h"
 #include "project.h"
@@ -24,6 +24,6 @@ int main(void){
 	printf("\n\n\n\n\n\n\n\n\r");
 //	run_demo();
 //	project_run();
-	activity9_run();
+	activity10_run();
 }
 
-- 
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