diff --git a/arch/arm/src/armv7-m/nvic.h b/arch/arm/src/armv7-m/nvic.h
index b132b996631..43cd470fb41 100644
--- a/arch/arm/src/armv7-m/nvic.h
+++ b/arch/arm/src/armv7-m/nvic.h
@@ -1,8 +1,8 @@
 /************************************************************************************
  * arch/arm/src/armv7-m/nvic.h
  *
- *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *   Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -396,7 +396,7 @@
 #define NVIC_SYSTICK_RELOAD_SHIFT       0         /* Bits 23-0: Timer reload value */
 #define NVIC_SYSTICK_RELOAD_MASK        (0x00ffffff << NVIC_SYSTICK_RELOAD_SHIFT)
 
-/* SysTick current value registe (SYSTICK_CURRENT) */
+/* SysTick current value register (SYSTICK_CURRENT) */
 
 #define NVIC_SYSTICK_CURRENT_SHIFT      0         /* Bits 23-0: Timer current value */
 #define NVIC_SYSTICK_CURRENT_MASK       (0x00ffffff << NVIC_SYSTICK_RELOAD_SHIFT)
diff --git a/arch/arm/src/stm32/stm32_rtc.c b/arch/arm/src/stm32/stm32_rtc.c
index ba1a9fd674a..c9811171c9a 100644
--- a/arch/arm/src/stm32/stm32_rtc.c
+++ b/arch/arm/src/stm32/stm32_rtc.c
@@ -4,6 +4,11 @@
  *   Copyright (C) 2011 Uros Platise. All rights reserved.
  *   Author: Uros Platise <uros.platise@isotel.eu>
  *
+ * With extensions, modifications by:
+ *
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregroy Nutt <gnutt@nuttx.org>
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -337,7 +342,7 @@ static int stm32_rtc_interrupt(int irq, void *context)
 int up_rtcinitialize(void)
 {
   /* Set access to the peripheral, enable the backup domain (BKP) and the lower power
-   * extern 32,768Hz LSE oscillator.
+   * extern 32,768Hz (Low-Speed External, LSE) oscillator.
    */
 
   stm32_pwr_enablebkp();