diff --git a/header/fsw_misc.h b/header/fsw_misc.h
--- a/header/fsw_misc.h
+++ b/header/fsw_misc.h
@@ -10,6 +10,17 @@
 #include "fsw_spacewire.h"
 #include "lfr_cpu_usage_report.h"
 
+enum lfr_reset_cause_t{
+    UNKNOWN_CAUSE,
+    POWER_ON,
+    TC_RESET,
+    WATCHDOG,
+    ERROR_RESET,
+    UNEXP_RESET
+};
+
+#define LFR_RESET_CAUSE_UNKNOWN_CAUSE 0
+
 rtems_name name_hk_rate_monotonic;     // name of the HK rate monotonic
 rtems_id HK_id;         // id of the HK rate monotonic period
 
@@ -40,7 +51,7 @@ void get_cpu_load( unsigned char *resour
 void set_hk_lfr_sc_potential_flag( bool state );
 void set_hk_lfr_mag_fields_flag( bool state );
 void set_hk_lfr_calib_enable( bool state );
-
+void set_hk_lfr_reset_cause( enum lfr_reset_cause_t lfr_reset_cause );
 
 extern int sched_yield( void );
 extern void rtems_cpu_usage_reset();
diff --git a/src/fsw_misc.c b/src/fsw_misc.c
--- a/src/fsw_misc.c
+++ b/src/fsw_misc.c
@@ -189,6 +189,8 @@ rtems_task hous_task(rtems_task_argument
     status = rtems_rate_monotonic_cancel(HK_id);
     DEBUG_PRINTF1("startup HK, HK_id status = %d\n", period_status.state)
 
+    set_hk_lfr_reset_cause( POWER_ON );
+
     while(1){ // launch the rate monotonic task
         status = rtems_rate_monotonic_period( HK_id, HK_PERIOD );
         if ( status != RTEMS_SUCCESSFUL ) {
@@ -562,3 +564,8 @@ void set_hk_lfr_calib_enable( bool state
     }
 }
 
+void set_hk_lfr_reset_cause( enum lfr_reset_cause_t lfr_reset_cause )
+{
+    housekeeping_packet.lfr_status_word[1] = housekeeping_packet.lfr_status_word[1]
+            | (lfr_reset_cause & 0x07 );   // [0000 0111]
+}