diff --git a/boards/avsextrem/include/periph_conf.h b/boards/avsextrem/include/periph_conf.h
new file mode 100644
index 0000000000..99d116738d
--- /dev/null
+++ b/boards/avsextrem/include/periph_conf.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2014 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License v2.1. See the file LICENSE in the top level directory for more
+ * details.
+ */
+
+/**
+ * @ingroup     boards_avsextrem
+ * @{
+ *
+ * @file
+ * @brief       Peripheral configuration for the avsextrem
+ *
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ */
+
+#ifndef __PERIPH_CONF_H
+#define __PERIPH_CONF_H
+
+#include "lpc2387.h"
+
+/**
+ * @brief PWM device and pinout configuration
+ */
+#define PWM_NUMOF           (0)         /* disable PWM for now as no pins are specified */
+#define PWM_0_EN            (0)
+
+/* PWM_0 device configuration */
+#define PWM_0_CH0           (3)         /* TODO: adjust pins for avsextrem */
+#define PWM_0_CH0_MR        PWM1MR3
+#define PWM_0_CH1           (4)
+#define PWM_0_CH1_MR        PWM1MR4
+#define PWM_0_CH2           (5)
+#define PWM_0_CH2_MR        PWM1MR5
+/* PWM_0 pin configuration */
+#define PWM_0_PORT          PINSEL4
+#define PWM_0_CH0_PIN       (2)
+#define PWM_0_CH1_PIN       (3)
+#define PWM_0_CH2_PIN       (4)
+#define PWM_0_FUNC          (1)
+
+
+#endif /* __PERIPH_CONF_H */
+/** @} */
diff --git a/boards/msba2/include/periph_conf.h b/boards/msba2/include/periph_conf.h
new file mode 100644
index 0000000000..330d29c3bf
--- /dev/null
+++ b/boards/msba2/include/periph_conf.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2014 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License v2.1. See the file LICENSE in the top level directory for more
+ * details.
+ */
+
+/**
+ * @ingroup     boards_msba2
+ * @{
+ *
+ * @file
+ * @brief       MSB-A2 peripheral configuration
+ *
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ */
+
+#ifndef __PERIPH_CONF_H
+#define __PERIPH_CONF_H
+
+#include "lpc2387.h"
+
+/**
+ * @brief PWM device and pinout configuration
+ */
+#define PWM_NUMOF           (1)
+#define PWM_0_EN            (1)
+
+/* PWM_0 device configuration */
+#define PWM_0_CH0           (3)
+#define PWM_0_CH0_MR        PWM1MR3
+#define PWM_0_CH1           (4)
+#define PWM_0_CH1_MR        PWM1MR4
+#define PWM_0_CH2           (5)
+#define PWM_0_CH2_MR        PWM1MR5
+/* PWM_0 pin configuration */
+#define PWM_0_PORT          PINSEL4
+#define PWM_0_CH0_PIN       (2)
+#define PWM_0_CH1_PIN       (3)
+#define PWM_0_CH2_PIN       (4)
+#define PWM_0_FUNC          (1)
+
+
+#endif /* __PERIPH_CONF_H */
+/** @} */