diff --git a/examples/stm32/f4/stm32f429i-discovery/usart/Makefile b/examples/stm32/f4/stm32f429i-discovery/usart/Makefile
new file mode 100644
index 0000000..5ef0177
--- /dev/null
+++ b/examples/stm32/f4/stm32f429i-discovery/usart/Makefile
@@ -0,0 +1,25 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+BINARY = usart
+
+LDSCRIPT = ../stm32f429i-discovery.ld
+
+include ../../Makefile.include
+
diff --git a/examples/stm32/f4/stm32f429i-discovery/usart/README b/examples/stm32/f4/stm32f429i-discovery/usart/README
new file mode 100644
index 0000000..6ed11a6
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+++ b/examples/stm32/f4/stm32f429i-discovery/usart/README
@@ -0,0 +1,19 @@
+------------------------------------------------------------------------------
+README
+------------------------------------------------------------------------------
+
+This example program sends repeating sequence of characters "0123456789" on 
+USART1 on the ST STM32F429IDISCOVERY eval board.
+
+The sending is done in a blocking way.
+
+Board connections:
+------------------
+
+  PA9	(USART1_TX)	TTL serial output (38400,8,N,1)
+
+Notes:
+------
+
+You can connect the UART to the stlink by closing the SB11 and SB15 solder
+jumpers.
diff --git a/examples/stm32/f4/stm32f429i-discovery/usart/usart.c b/examples/stm32/f4/stm32f429i-discovery/usart/usart.c
new file mode 100644
index 0000000..9e84236
--- /dev/null
+++ b/examples/stm32/f4/stm32f429i-discovery/usart/usart.c
@@ -0,0 +1,84 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ * Copyright (C) 2011 Stephen Caudle <scaudle@doceme.com>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/rcc.h>
+#include <libopencm3/stm32/gpio.h>
+#include <libopencm3/stm32/usart.h>
+
+static void clock_setup(void)
+{
+	/* Enable GPIOG clock for LED & USARTs. */
+	rcc_periph_clock_enable(RCC_GPIOG);
+	rcc_periph_clock_enable(RCC_GPIOA);
+
+	/* Enable clocks for USART2. */
+	rcc_periph_clock_enable(RCC_USART1);
+}
+
+static void usart_setup(void)
+{
+	/* Setup USART2 parameters. */
+	usart_set_baudrate(USART1, 38400);
+	usart_set_databits(USART1, 8);
+	usart_set_stopbits(USART1, USART_STOPBITS_1);
+	usart_set_mode(USART1, USART_MODE_TX);
+	usart_set_parity(USART1, USART_PARITY_NONE);
+	usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
+
+	/* Finally enable the USART. */
+	usart_enable(USART1);
+}
+
+static void gpio_setup(void)
+{
+	/* Setup GPIO pin GPIO13 on GPIO port G for LED. */
+	gpio_mode_setup(GPIOG, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO13);
+
+	/* Setup GPIO pins for USART1 transmit. */
+	gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9);
+
+	/* Setup USART1 TX pin as alternate function. */
+	gpio_set_af(GPIOA, GPIO_AF7, GPIO9);
+}
+
+int main(void)
+{
+	int i, j = 0, c = 0;
+
+	clock_setup();
+	gpio_setup();
+	usart_setup();
+
+	/* Blink the LED (PG13) on the board with every transmitted byte. */
+	while (1) {
+		gpio_toggle(GPIOG, GPIO13);	/* LED on/off */
+		usart_send_blocking(USART1, c + '0'); /* USART1: Send byte. */
+		c = (c == 9) ? 0 : c + 1;	/* Increment c. */
+		if ((j++ % 80) == 0) {		/* Newline after line full. */
+			usart_send_blocking(USART1, '\r');
+			usart_send_blocking(USART1, '\n');
+		}
+		for (i = 0; i < 3000000; i++) {	/* Wait a bit. */
+			__asm__("NOP");
+		}
+	}
+
+	return 0;
+}