added random number generator driver and stuff

source/test/rng/main.c

@@ -0,0 +1,38 @@
+
+
+/*
+ * main.c
+ *
+ *  Created on: Aug 2, 2016
+ *      Author: tkl
+ */
+
+#include <stdbool.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "driver.h"
+#include "board.h"
+#include "stack.h"
+#include "queue.h"
+#include "kernel.h"
+#include "driver.h"
+#include "list.h"
+#include "shell.h"
+
+int main(void)
+{
+	char print_buffer[50];
+	shell_init(&uart_1);
+	drv_open(&rng);
+
+	while(1) {
+		int random = drv_read(&rng, NULL, 0);
+		sprintf(print_buffer, "random: %d\r\n", random);
+		shell_write(print_buffer, strlen(print_buffer));
+		sleep_ms(1000);
+	}
+
+	return 0;
+}
+

source/test/rng/rng.mk

@@ -0,0 +1 @@
+SRC_DIR += source/test/rng