cpu: instead of cpp-style, use C-style comments

cpu/arm7_common/include/iap.h

@@ -44,10 +44,10 @@ extern "C" {
 #define IAP_LOCATION    (0x7FFFFFF1)
 
 /* PLL */
-#define PLLCON_PLLE     (0x01)      ///< PLL Enable
+#define PLLCON_PLLE     (0x01)      /**< PLL Enable */
-#define PLLCON_PLLD     (0x00)      ///< PLL Disable
+#define PLLCON_PLLD     (0x00)      /**< PLL Disable */
-#define PLLCON_PLLC     (0x03)      ///< PLL Connect
+#define PLLCON_PLLC     (0x03)      /**< PLL Connect */
-#define PLLSTAT_PLOCK   (0x0400)    //</ PLL Lock Status
+#define PLLSTAT_PLOCK   (0x0400)    /**< PLL Lock Status */
 
 /*
  * @brief:  Converts 'addr' to sector number

cpu/atmega_common/periph/uart.c

@@ -97,7 +97,7 @@ static void _set_brr(uart_t uart, uint32_t baudrate)
 {
     uint16_t brr;
 #if defined(UART_STDIO_BAUDRATE)
-    // UBRR_VALUE and USE_2X are statically computed from <util/setbaud.h>
+    /* UBRR_VALUE and USE_2X are statically computed from <util/setbaud.h> */
     if (baudrate == UART_STDIO_BAUDRATE) {
         _update_brr(uart, UBRR_VALUE, USE_2X);
         return;

cpu/atmega_common/thread_arch.c

@@ -249,7 +249,7 @@ void thread_yield_higher(void) {
 }
 
 
-// Use this interrupt to perform all context switches
+/* Use this interrupt to perform all context switches */
 ISR(AVR_CONTEXT_SWAP_INTERRUPT_VECT, ISR_NAKED) {
     __context_save();
     sched_run();

cpu/cc430/include/cc430-rtc.h

@@ -32,11 +32,11 @@ extern "C" {
  * @see     ::rtc_set_alarm
  */
 typedef enum {
-    RTC_ALARM_DISABLED = 0x00,      ///< Alarm disables
+    RTC_ALARM_DISABLED = 0x00,      /**< Alarm disables */
-    RTC_ALARM_MIN      = 0x01,      ///< Alarm mask for Minutes
+    RTC_ALARM_MIN      = 0x01,      /**< Alarm mask for Minutes */
-    RTC_ALARM_HOUR     = 0x02,      ///< Alarm mask for Hours
+    RTC_ALARM_HOUR     = 0x02,      /**< Alarm mask for Hours */
-    RTC_ALARM_DOW      = 0x04,      ///< Alarm mask for Day of Week
+    RTC_ALARM_DOW      = 0x04,      /**< Alarm mask for Day of Week */
-    RTC_ALARM_DOM      = 0x08       ///< Alarm mask for Day of Month
+    RTC_ALARM_DOM      = 0x08       /**< Alarm mask for Day of Month */
 } rtc_alarm_mask_t;
 
 /**

cpu/lpc2387/cpu.c

@@ -51,9 +51,9 @@ void cpu_clock_scale(uint32_t source, uint32_t target, uint32_t *prescale)
 
     lpc2387_pclk_scale(source, target, &pclksel, prescale);
 
-    PCLKSEL0 = (PCLKSEL0 & ~(BIT2 | BIT3)) | (pclksel << 2);        // timer 0
+    PCLKSEL0 = (PCLKSEL0 & ~(BIT2 | BIT3)) | (pclksel << 2);    /* timer 0 */
-    PCLKSEL0 = (PCLKSEL0 & ~(BIT4 | BIT5)) | (pclksel << 4);        // timer 1
+    PCLKSEL0 = (PCLKSEL0 & ~(BIT4 | BIT5)) | (pclksel << 4);    /* timer 1 */
-    PCLKSEL1 = (PCLKSEL1 & ~(BIT12 | BIT13)) | (pclksel << 12); // timer 2
+    PCLKSEL1 = (PCLKSEL1 & ~(BIT12 | BIT13)) | (pclksel << 12); /* timer 2 */
 }
 
 /******************************************************************************

cpu/lpc2387/include/cpu.h

@@ -26,7 +26,7 @@
 extern "C" {
 #endif
 
-extern uintptr_t __stack_start;     ///< end of user stack memory space
+extern uintptr_t __stack_start;     /**< end of user stack memory space */
 
 /**
  * @brief Scale lpc2387 cpu speed

cpu/lpc2387/lpc23xx-iap.c

@@ -32,9 +32,12 @@
 /* pointer to reserved flash rom section for configuration data */
 __attribute((aligned(256))) char configmem[256] __attribute__((section(".configmem")));
 
-static unsigned int iap_command[5];         // contains parameters for IAP command
+/* contains parameters for IAP command */
-static unsigned int iap_result[2];          // contains results
+static unsigned int iap_command[5];
-typedef void (*IAP)(unsigned int[], unsigned int[]);    // typedefinition for IAP entry function
+/* contains results */
+static unsigned int iap_result[2];
+/* typedefinition for IAP entry function */
+typedef void (*IAP)(unsigned int[], unsigned int[]);
 IAP IAP_Entry;
 
 /* some function prototypes */
@@ -148,13 +151,13 @@ uint8_t flashrom_erase(uint8_t *addr)
 
 static uint32_t iap(uint32_t code, uint32_t p1, uint32_t p2, uint32_t p3, uint32_t p4)
 {
-    iap_command[0] = code;      // set command code
+    iap_command[0] = code;      /* set command code */
-    iap_command[1] = p1;        // set 1st param
+    iap_command[1] = p1;        /* set 1st param */
-    iap_command[2] = p2;        // set 2nd param
+    iap_command[2] = p2;        /* set 2nd param */
-    iap_command[3] = p3;        // set 3rd param
+    iap_command[3] = p3;        /* set 3rd param */
-    iap_command[4] = p4;        // set 4th param
+    iap_command[4] = p4;        /* set 4th param */
 
-    ((void (*)())0x7ffffff1)(iap_command, iap_result);      // IAP entry point
+    ((void (*)())0x7ffffff1)(iap_command, iap_result); /* IAP entry point */
     return *iap_result;
 }
 

cpu/msp430_common/cpu.c

@@ -71,9 +71,9 @@ NORETURN void cpu_switch_context_exit(void)
  * thread_stack_init behavior. */
 __attribute__((section (".fini9"))) void __main_epilogue(void) { __asm__("ret"); }
 
-//----------------------------------------------------------------------------
+/* ------------------------------------------------------------------------- */
-// Processor specific routine - here for MSP
+/*  Processor specific routine - here for MSP */
-//----------------------------------------------------------------------------
+/* ------------------------------------------------------------------------- */
 char *thread_stack_init(thread_task_func_t task_func, void *arg, void *stack_start, int stack_size)
 {
     unsigned short stk = (unsigned short)((uintptr_t) stack_start + stack_size);

cpu/native/include/native_internal.h

@@ -41,7 +41,7 @@
 #else
 #include <ucontext.h>
 #endif
-#endif // BSD/Linux
+#endif /* BSD/Linux */
 #include <netdb.h>
 #include <ifaddrs.h>
 #include <time.h>

cpu/native/periph/pm.c

@@ -31,7 +31,7 @@
 
 void pm_set_lowest(void)
 {
-    _native_in_syscall++; // no switching here
+    _native_in_syscall++; /* no switching here */
     real_pause();
     _native_in_syscall--;