diff --git a/boards/avsextrem/board_init.c b/boards/avsextrem/board_init.c
index bc0dfb86b3..1a68e32712 100644
--- a/boards/avsextrem/board_init.c
+++ b/boards/avsextrem/board_init.c
@@ -26,10 +26,6 @@
 /*---------------------------------------------------------------------------*/
 void board_init(void)
 {
-    /* UART0 */
-    PINSEL0 |= BIT4 + BIT6;   // RxD0 and TxD0
-    PINSEL0 &= ~(BIT5 + BIT7);
-
     //PTTU:
 
     /*Turn Board on*/
diff --git a/boards/avsextrem/include/periph_conf.h b/boards/avsextrem/include/periph_conf.h
index cacae833d5..388ff6a3d2 100644
--- a/boards/avsextrem/include/periph_conf.h
+++ b/boards/avsextrem/include/periph_conf.h
@@ -19,7 +19,7 @@
 #ifndef PERIPH_CONF_H
 #define PERIPH_CONF_H
 
-#include "lpc2387.h"
+#include "periph_cpu.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -53,8 +53,18 @@ extern "C" {
  * @name    UART configuration
  * @{
  */
-#define UART_NUMOF          (1U)
-#define UART_0_EN           (1)
+static const uart_conf_t uart_config[] = {
+    {
+        .dev = UART0,
+        .irq_prio_rx = 6,
+        .pinsel_rx   = 0,
+        .pinsel_tx   = 0,
+        .pinsel_msk_rx = BIT4,
+        .pinsel_msk_tx = BIT6,
+    }
+};
+
+#define UART_NUMOF          (1)
 /** @} */
 
 /**