Activate cache

Core/Src/main.c

@@ -21,6 +21,7 @@
 #include "spi.h"
 #include "gpio.h"
 #include "../../nokia.h"
+#include <stdio.h>
 
 extern void ScreenSaver(void);
 
@@ -94,16 +95,31 @@ int main(void)
 	
 	Nokia_Init();
 
-
+	uint32_t oldTick=HAL_GetTick();
+	uint32_t newTick=oldTick;
+	uint32_t fps=0;
+	
+	SCB_EnableICache();
+	SCB_EnableDCache();
+	
   /* USER CODE END 2 */
 
   /* Infinite loop */
   /* USER CODE BEGIN WHILE */
 	while (1) {
 
+		newTick=HAL_GetTick();
+		
+		if(newTick-oldTick>1000)
+		{
+			oldTick=newTick;
+			printf("FPS: %d\r\n",fps);
+			fps=0;
+		}
 		
 		ScreenSaver();
 		NokiaUpdate();
+		fps++;
 
 		
     /* USER CODE END WHILE */