diff --git a/.cproject b/.cproject
index 437afc7..a023ea9 100755
--- a/.cproject
+++ b/.cproject
@@ -146,6 +146,7 @@
 		<buildTargets>
 			<target name="all" path="software/source/test/firmware/kernel/list" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>all</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
@@ -153,6 +154,7 @@
 			</target>
 			<target name="clean" path="software/source/test/firmware/kernel/list" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>clean</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
@@ -160,7 +162,6 @@
 			</target>
 			<target name="distclean" path="software/source" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>distclean</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -216,6 +217,7 @@
 			</target>
 			<target name="all" path="software/test/firmware/kernel/list" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>all</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
@@ -247,6 +249,7 @@
 			</target>
 			<target name="distclean" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>distclean</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
@@ -292,6 +295,14 @@
 				<useDefaultCommand>false</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="rng test" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>TEST_APP=rng BOARD=stm32f4-discovery DEBUG=y</buildArguments>
+				<buildTarget>test</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>false</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="msp430-ccrf example_radio_rx all" path="software/source/test" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>APP=example_radio_rx BOARD=msp430-ccrf DEBUG=y</buildArguments>
@@ -318,6 +329,7 @@
 			</target>
 			<target name="all" path="software/source/test/firmware/kernel/ringbuffer" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>all</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
@@ -325,6 +337,7 @@
 			</target>
 			<target name="clean" path="software/source/test/firmware/kernel/ringbuffer" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>clean</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
diff --git a/source/firmware/arch/stm32f4xx/board/stm32f4-discovery/include/stm32f4-discovery.h b/source/firmware/arch/stm32f4xx/board/stm32f4-discovery/include/stm32f4-discovery.h
index 91ab510..56e96e6 100755
--- a/source/firmware/arch/stm32f4xx/board/stm32f4-discovery/include/stm32f4-discovery.h
+++ b/source/firmware/arch/stm32f4xx/board/stm32f4-discovery/include/stm32f4-discovery.h
@@ -24,8 +24,35 @@
 
 #include "gpio.h"
 #include "stm32f4_gpio.h"
+
+#include "rng.h"
+#include "stm32f4_rng.h"
+
 #include "driver.h"
 
+// Random number generator
+static RNG_HandleTypeDef stm32f4_rng_handle = {
+		.Instance = RNG,
+};
+
+static struct stm32f4_rng stm32f4_rng = {
+		.rng_handle = &stm32f4_rng_handle,
+};
+
+static struct rng __rng = {
+		.arch_dep_device = &stm32f4_rng,
+		.fp = &rng_fp,
+};
+
+#ifdef TEST_APP
+static const struct driver rng = {
+#else
+const struct driver rng = {
+#endif
+		.driver_type = DRIVER_TYPE_RNG,
+		.device_driver = &__rng,
+};
+
 // GPIO_C0
 static const GPIO_InitTypeDef port_cfg_c0 = {
 		.Pin = GPIO_PIN_0,
diff --git a/source/firmware/arch/stm32f4xx/driver/include/stm32f4_rng.h b/source/firmware/arch/stm32f4xx/driver/include/stm32f4_rng.h
new file mode 100644
index 0000000..d555757
--- /dev/null
+++ b/source/firmware/arch/stm32f4xx/driver/include/stm32f4_rng.h
@@ -0,0 +1,25 @@
+/*
+ * stm32f4_rng.h
+ *
+ *  Created on: Aug 30, 2016
+ *      Author: tkl
+ */
+
+#ifndef SOURCE_FIRMWARE_ARCH_STM32F4XX_INCLUDE_STM32F4_RNG_H_
+#define SOURCE_FIRMWARE_ARCH_STM32F4XX_INCLUDE_STM32F4_RNG_H_
+
+struct stm32f4_rng {
+	RNG_HandleTypeDef *rng_handle;
+};
+
+int stm32f4_rng_open(const void *this);
+int stm32f4_rng_close(const void *this);
+unsigned int stm32f4_rng_read(const void *this);
+
+static const struct rng_fp rng_fp = {
+		.open = stm32f4_rng_open,
+		.close = stm32f4_rng_close,
+		.read = stm32f4_rng_read,
+};
+
+#endif /* SOURCE_FIRMWARE_ARCH_STM32F4XX_INCLUDE_STM32F4_RNG_H_ */
diff --git a/source/firmware/arch/stm32f4xx/driver/stm32f4_rng.c b/source/firmware/arch/stm32f4xx/driver/stm32f4_rng.c
new file mode 100644
index 0000000..71e6460
--- /dev/null
+++ b/source/firmware/arch/stm32f4xx/driver/stm32f4_rng.c
@@ -0,0 +1,43 @@
+/*
+ * stm32f4_rng.c
+ *
+ *  Created on: Aug 30, 2016
+ *      Author: tkl
+ */
+
+#include <stddef.h>
+
+#include "board.h"
+
+int stm32f4_rng_open(const void *this)
+{
+	if(NULL == this)
+		return -1;
+	struct stm32f4_rng *dev = (struct stm32f4_rng *)this;
+
+	__HAL_RCC_RNG_CLK_ENABLE();
+	HAL_RNG_DeInit(dev->rng_handle);
+	HAL_RNG_Init(dev->rng_handle);
+
+	return 0;
+}
+
+int stm32f4_rng_close(const void *this)
+{
+	if(NULL == this)
+		return -1;
+	struct stm32f4_rng *dev = (struct stm32f4_rng *)this;
+	__HAL_RCC_RNG_CLK_DISABLE();
+	HAL_RNG_DeInit(dev->rng_handle);
+	return 0;
+}
+
+unsigned int stm32f4_rng_read(const void *this)
+{
+	if(NULL == this)
+		return -1;
+	struct stm32f4_rng *dev = (struct stm32f4_rng *)this;
+	uint32_t random = 0;
+	HAL_RNG_GenerateRandomNumber(dev->rng_handle, &random);
+	return random;
+}
diff --git a/source/firmware/kernel/driver/driver.c b/source/firmware/kernel/driver/driver.c
index 32d052f..496d440 100644
--- a/source/firmware/kernel/driver/driver.c
+++ b/source/firmware/kernel/driver/driver.c
@@ -12,7 +12,7 @@
 #include "gpio.h"
 #include "i2c.h"
 #include "pwm.h"
-//#include "rtc.h"
+#include "rng.h"
 #include "spi.h"
 #include "uart.h"
 
@@ -34,8 +34,10 @@ int drv_open(const struct driver *driver)
 	case DRIVER_TYPE_PWM:
 		ret = pwm_open((const struct pwm *)(driver->device_driver));
 		break;
+	case DRIVER_TYPE_RNG:
+		ret = rng_open((const struct rng *)(driver->device_driver));
+		break;
 	case DRIVER_TYPE_RTC:
-//		ret = rtc_open((const struct rtc *)(driver->device_driver));
 		break;
 	case DRIVER_TYPE_SPI:
 		ret = spi_open((const struct spi *)(driver->device_driver));
@@ -65,8 +67,10 @@ int drv_close(const struct driver *driver)
 	case DRIVER_TYPE_PWM:
 		ret = pwm_close((const struct pwm *)(driver->device_driver));
 		break;
+	case DRIVER_TYPE_RNG:
+		ret = rng_close((const struct rng *)(driver->device_driver));
+		break;
 	case DRIVER_TYPE_RTC:
-//		ret = rtc_close((const struct rtc *)(driver->device_driver));
 		break;
 	case DRIVER_TYPE_SPI:
 		ret = spi_close((const struct spi *)(driver->device_driver));
@@ -96,7 +100,9 @@ int drv_read(const struct driver *driver, char *buffer, int len)
 	case DRIVER_TYPE_I2C:
 		break;
 	case DRIVER_TYPE_PWM:
-		ret = -1;
+		break;
+	case DRIVER_TYPE_RNG:
+		ret = rng_read((const struct rng *)(driver->device_driver));
 		break;
 	case DRIVER_TYPE_RTC:
 		break;
@@ -129,7 +135,8 @@ int drv_write(const struct driver *driver, const char *buffer, int len)
 	case DRIVER_TYPE_I2C:
 		break;
 	case DRIVER_TYPE_PWM:
-		ret = -1;
+		break;
+	case DRIVER_TYPE_RNG:
 		break;
 	case DRIVER_TYPE_RTC:
 		break;
@@ -166,6 +173,8 @@ int drv_ioctl(const struct driver *driver, unsigned int cmd, const void *data)
 			return pwm_get_pulse_width_ns((const struct pwm *)(driver->device_driver));
 		}
 		break;
+	case DRIVER_TYPE_RNG:
+		break;
 	case DRIVER_TYPE_RTC:
 		break;
 	case DRIVER_TYPE_SPI:
diff --git a/source/firmware/kernel/driver/include/rng.h b/source/firmware/kernel/driver/include/rng.h
new file mode 100644
index 0000000..4bc083f
--- /dev/null
+++ b/source/firmware/kernel/driver/include/rng.h
@@ -0,0 +1,30 @@
+/*
+ * rng.h
+ *
+ *  Created on: Aug 30, 2016
+ *      Author: tkl
+ */
+
+#ifndef SOURCE_FIRMWARE_KERNEL_DRIVER_INCLUDE_RNG_H_
+#define SOURCE_FIRMWARE_KERNEL_DRIVER_INCLUDE_RNG_H_
+
+typedef int (*rng_fp_open_t)(const void*);
+typedef int (*rng_fp_close_t)(const void*);
+typedef unsigned int (*rng_fp_read_t)(const void*);
+
+struct rng_fp {
+	const rng_fp_open_t		open;
+	const rng_fp_close_t	close;
+	const rng_fp_read_t		read;
+};
+
+struct rng {
+	const void *arch_dep_device;
+	const struct rng_fp *fp;
+};
+
+int rng_open(const struct rng *device);
+int rng_close(const struct rng *device);
+unsigned int rng_read(const struct rng *device);
+
+#endif /* SOURCE_FIRMWARE_KERNEL_DRIVER_INCLUDE_RNG_H_ */
diff --git a/source/firmware/kernel/driver/rng.c b/source/firmware/kernel/driver/rng.c
new file mode 100644
index 0000000..3822005
--- /dev/null
+++ b/source/firmware/kernel/driver/rng.c
@@ -0,0 +1,36 @@
+/*
+ * rng.c
+ *
+ *  Created on: Aug 30, 2016
+ *      Author: tkl
+ */
+
+#include <stddef.h>
+#include "rng.h"
+
+int rng_open(const struct rng *device)
+{
+	if(device == NULL)
+		return -1;
+
+	rng_fp_open_t open = device->fp->open;
+	return open(device->arch_dep_device);
+}
+
+int rng_close(const struct rng *device)
+{
+	if(device == NULL)
+		return -1;
+
+	rng_fp_close_t close = device->fp->close;
+	return close(device->arch_dep_device);
+}
+
+unsigned int rng_read(const struct rng *device)
+{
+	if(device == NULL)
+		return 0;
+
+	rng_fp_read_t read = device->fp->read;
+	return read(device->arch_dep_device);
+}
diff --git a/source/firmware/kernel/interface/driver.h b/source/firmware/kernel/interface/driver.h
index 6ce5b5d..8af40b4 100644
--- a/source/firmware/kernel/interface/driver.h
+++ b/source/firmware/kernel/interface/driver.h
@@ -17,6 +17,7 @@ enum driver_type {
 	DRIVER_TYPE_GPIO,
 	DRIVER_TYPE_I2C,
 	DRIVER_TYPE_PWM,
+	DRIVER_TYPE_RNG,
 	DRIVER_TYPE_RTC,
 	DRIVER_TYPE_SPI,
 	DRIVER_TYPE_UART
diff --git a/source/test/rng/main.c b/source/test/rng/main.c
new file mode 100644
index 0000000..07c5b7e
--- /dev/null
+++ b/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;
+}
+
diff --git a/source/test/rng/rng.mk b/source/test/rng/rng.mk
new file mode 100644
index 0000000..cc0fdcc
--- /dev/null
+++ b/source/test/rng/rng.mk
@@ -0,0 +1 @@
+SRC_DIR += source/test/rng
diff --git a/source/test/test.mk b/source/test/test.mk
index ba014f1..527eb6b 100644
--- a/source/test/test.mk
+++ b/source/test/test.mk
@@ -6,6 +6,10 @@ ifeq ($(TEST_APP), pwm)
 include source/test/pwm/pwm.mk
 endif
 
+ifeq ($(TEST_APP), rng)
+include source/test/rng/rng.mk
+endif
+
 ifeq ($(TEST_APP), shell)
 include source/test/shell/shell.mk
 endif