diff --git a/env/ehrenberg/platform.h b/env/ehrenberg/platform.h
index cec65bd..fb0005c 100644
--- a/env/ehrenberg/platform.h
+++ b/env/ehrenberg/platform.h
@@ -18,14 +18,14 @@
 #define PERIPH(TYPE, ADDR) ((volatile TYPE*) (ADDR))
 
 #define APB_BASE 0xF0000000
-#define TIMER_BASE                 (APB_BASE+0x30000)
+#define TIMER_BASE                 (APB_BASE+0x20000)
 
-#define gpio_a    PERIPH(gpio_t,   APB_BASE+0x00000)
+#define gpio_a    PERIPH(gpio_t,   APB_BASE+0x0000)
 //#define gpio_b     PERIPH(gpio_t, APB_BASE+0x10000)
-#define uart      PERIPH(uart_t,   APB_BASE+0x10000)
+#define uart      PERIPH(uart_t,   APB_BASE+0x1000)
 #define prescaler PERIPH(uart_t,   TIMER_BASE+0x0)
-#define timer_a   PERIPH(uart_t,   TIMER_BASE+0x10)
-#define timer_b   PERIPH(uart_t,   TIMER_BASE+0x20)
+#define timer_a   PERIPH(uart_t,   TIMER_BASE+0x4)
+#define timer_b   PERIPH(uart_t,   TIMER_BASE+0x10)
 #define mtimer    PERIPH(mtimer_t, APB_BASE+0x30000)
 #define irq       PERIPH(irq_t,    APB_BASE+0x40000)
 #define qspi      PERIPH(qspi_t,   APB_BASE+0x50000)