diff --git a/trunk/accero.c b/trunk/accero.c
index e0d3d23..ac2910a 100644
--- a/trunk/accero.c
+++ b/trunk/accero.c
@@ -54,9 +54,8 @@ u16* hyst_pedometer;
 
 // ========================================================
 task_interval tsk_soft_int(  );
-static void pedo_increment();
-
-
+static void hosu_increment();
+u16 get_long_hour();
 
 
 
@@ -122,7 +121,7 @@ task_status_immed tsk_cbk_accero(  )
                 {
                     // 一歩増えました
                     DBG_LED_WIFI_2_on;
-                    pedo_increment();
+                    hosu_increment();
                 }
             }
             interval_hh = 0;
@@ -155,13 +154,14 @@ task_status_immed tsk_cbk_accero(  )
 　　累積をインクリメント
   　履歴を更新
  ========================================================*/
-static void pedo_increment()
+#define MAGIC_PEDO_NODATA 65535
+#define MAGIC_PEDO_MAX    65534
+
+u8 p_record;
+
+static void hosu_increment()
 {
-    static u8 last_hour;        // 履歴の最新は何時？
-    static u8 last_day;
-    static u8 last_month;
-    static u8 last_year;
-    static u8 p_record;
+    static u16 last_hour;        // 履歴の最新は何時？
 
     // 累積の更新 //
     // いろいろ失敗した...
@@ -178,30 +178,72 @@ static void pedo_increment()
     }
 
     // 毎時履歴の更新
-    DI();
-    RWAIT = 1;
-    while( !RWST ){;}
-
-    if(( last_hour != HOUR ) || ( last_day != DAY ) || ( last_month != MONTH ) || ( last_year != YEAR ))
     {
-        last_hour = HOUR;
-        last_day = DAY;
-        last_month = MONTH;
-        last_year = YEAR;
-        p_record += 1;
-        *(hyst_pedometer + p_record) = 0;
-    }
-    RWAIT = 0;
-    EI();
+        u16 temp_hour = get_long_hour();
+        if( temp_hour > last_hour )
+        {
+            for( ; last_hour != temp_hour; last_hour += 1 )
+            {
+                p_record += 1;
+                *(hyst_pedometer + p_record) = MAGIC_PEDO_NODATA;
+            }
+            *(hyst_pedometer + p_record) = 0;
+        }
 
-    *(hyst_pedometer + p_record) += 1;
-    if( *( hyst_pedometer + p_record ) == 65535 )  // 65535はマジックナンバーで
-    {
-        *hyst_pedometer = 65534;
+        *(hyst_pedometer + p_record) += 1;
+        if( *( hyst_pedometer + p_record ) == MAGIC_PEDO_MAX )
+        {
+            *hyst_pedometer = 65534;
+        }
     }
 }
 
 
+bit hosu_read_inited;
+bit record_read_msb_lsb;
+
+/* ========================================================
+  歩数計ヒストリ読み出しの後処理(初期化)
+  読み出しポインタのクリア
+======================================================== */
+void hosu_read_end(  )
+{
+    record_read_msb_lsb = 0;
+    hosu_read_inited = 0;
+}
+
+/* ========================================================
+  歩数計のヒストリを返す。
+  １回呼ぶ度に、ヒストリの下位、上位、一時間遡って下位上位...
+======================================================== */
+u8 hosu_read(  )
+{
+    u16 temp;
+    u8 rv;
+
+    static u8 p_record_buffer;
+
+    if( hosu_read_inited == 0 )
+    {
+        p_record_buffer = p_record;
+        hosu_read_inited = 1;
+    }
+
+    temp = *( hyst_pedometer + p_record_buffer );
+    if( record_read_msb_lsb == 0 )
+    {
+        rv = (u8)( ( temp & 0xFF00 ) >> 8 );
+    }
+    else
+    {
+        rv = (u8)( temp & 0x00FF );
+        p_record_buffer += 1;
+    }
+    record_read_msb_lsb += 1;
+
+    return( rv );
+}
+
 
 
 /*=========================================================
@@ -327,3 +369,51 @@ __interrupt void intp23_ACC_ready(  )
         }
     }
 }
+
+
+
+/* ========================================================
+  2000年１月１日０時からの現在時刻を返す
+
+  引数  無し
+  返値  u16 long_hour
+======================================================== */
+static const u16 DAYS_FROM_HNY[] = { 
+    0,
+    0, 31, 31+28, 59+31, 90+30,
+    120+31, 151+30, 181+31, 212+31, 243+30,
+    273+31, 304+30 };
+
+
+u16 get_long_hour()
+{
+    u16 long_hour;
+
+    DI();
+
+    RWAIT = 1;
+    while( !RWST ){;}
+
+    // まず日数の部分
+    long_hour = YEAR * 365;
+    long_hour += ( YEAR / 4 ) +1;      // 閏日の分。修正ユリウスでは2000年も閏年
+    long_hour += DAYS_FROM_HNY[ MONTH ];
+    if(( 2 <= MONTH ) && ( DAY < 29 ))
+    {
+        // 2/29より前
+        long_hour -= 1;
+    }
+    long_hour += DAY;
+
+    long_hour *= 24;
+    long_hour += HOUR;
+
+    RWAIT = 0;
+
+    EI();
+
+    return( long_hour );
+}
+
+
+
diff --git a/trunk/accero.h b/trunk/accero.h
index ae5eb77..7c53b9b 100644
--- a/trunk/accero.h
+++ b/trunk/accero.h
@@ -5,13 +5,18 @@
 #include "jhl_defs.h"
 
 
+
 ///////////////////////////////////////////////////////////
-extern u16* hyst_pedometer; 
+extern u16* hyst_pedometer;
+
 
 
 ///////////////////////////////////////////////////////////
 task_status_immed tsk_cbk_accero(  );
 task_status_immed acc_hosu_set(  );
 
+void hosu_read_end(  );
+u8 hosu_read(  );
+
 
 #endif
diff --git a/trunk/i2c_ctr.c b/trunk/i2c_ctr.c
index c9c0015..9b14cc3 100644
--- a/trunk/i2c_ctr.c
+++ b/trunk/i2c_ctr.c
@@ -4,6 +4,8 @@
 	'09 Apr
  ======================================================== */
 #include "incs.h"
+#include "accero.h"
+
 
 #ifdef _MCU_BSR_
 // #ifdef _MODEL_TS0_ || _MODEL_WM0_
@@ -83,8 +85,6 @@ __interrupt void int_iic_ctr(  )
         SPIE = 0;
         LREL = 1;
 
-        rtc_unlock(  );
-
         // レジスタリードで、割り込みピンをネゲート
         // まだ読まれてない割り込みがあれば、再度アサート
         if( irq_readed )
@@ -100,6 +100,9 @@ __interrupt void int_iic_ctr(  )
                 IRQ0_ast;
             }
         }
+
+        // 歩数計読み出し終了
+        hosu_read_end(  );
         return;
     }
 
@@ -108,7 +111,6 @@ __interrupt void int_iic_ctr(  )
         if( ( state == IIC_TX ) || ( state == IIC_RX ) )
         {
             state = IIC_IDLE;
-            rtc_unlock(  );
         }
     }
 
@@ -131,7 +133,7 @@ __interrupt void int_iic_ctr(  )
         break;
 
     case ( IIC_TX_OR_RX ):
-//    if( TRC ){           // 送信方向フラグ
+//    if( TRC ){           // 送信方向フラグ で区別するのは、割り込み遅延時に不具合が起こりえる
         if( STD )
         {                       // スタートコンディション検出フラグ
             // リードされる
@@ -168,7 +170,11 @@ __interrupt void int_iic_ctr(  )
             vreg_ctr_write( reg_adrs, trx_buf );
             WREL = 1;
         }
-        reg_adrs += 1;
+        if( reg_adrs != VREG_C_ACC_HOSU_HIST )
+        {
+            reg_adrs += 1;
+        }
+
         if( state == IIC_TX )
         {
             trx_buf = vreg_ctr_read( reg_adrs );
diff --git a/trunk/main.c b/trunk/main.c
index 7f40420..755224f 100644
--- a/trunk/main.c
+++ b/trunk/main.c
@@ -59,14 +59,14 @@ void main_loop( void )
     vreg_ctr_init(  );
     vreg_twl_init(  );
 
-    read_dipsw(  );
-    // 特定スイッチで何かするか？
+    read_dipsw(  );    // 特定スイッチで何かするか？
+
+    hyst_pedometer = (u16*)pool;
+
 
     renge_init(  );
     renge_task_interval_run_force = 1;
 
-    hyst_pedometer = (u16*)pool;
-
     EI(  );
 
     RTCIMK = 0;                 /* 割り込み(アラーム&インターバル)許可 */
diff --git a/trunk/self_flash.c b/trunk/self_flash.c
index fc200df..ab3fba9 100644
--- a/trunk/self_flash.c
+++ b/trunk/self_flash.c
@@ -190,7 +190,7 @@ err firm_update(  )
         if( comp == 0 )
         {
             FSL_InvertBootFlag(  );
-            FSL_SwapBootCluster(  );  // リセットせずに頭から
+            FSL_SwapBootCluster(  );  // リセットせずに頭から。FSL_Closeは不要
       //      FSL_ForceReset();  // リセット
       //      FSL_SwapActiveBootCluster();  // ←スワップされてしまうので、続けられず暴走！
             // 戻ってこない //
diff --git a/trunk/vreg_ctr.c b/trunk/vreg_ctr.c
index e9344b3..29faa17 100644
--- a/trunk/vreg_ctr.c
+++ b/trunk/vreg_ctr.c
@@ -267,7 +267,13 @@ u8 vreg_ctr_read( u8 adrs )
     {
         return( vreg_ctr[ VREG_C_MCU_STATUS ] | ( ( vreg_twl[ REG_TWL_INT_ADRS_MODE ] & 0x03 ) << 6 ) );
     }
-#if 0
+
+    if( adrs == VREG_C_ACC_HOSU_HIST )
+    {
+        return( hosu_read() );
+    }
+
+#if 1
     if( adrs >= VREG_C_ENDMARK_ )
     {
         return( 0xEE );