diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
index df90f31d8..3695fd40a 100644
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
@@ -1468,7 +1468,7 @@ THREAD_RETTYPE PhotoFast_FlowPreviewThread(void *arg)
 	while(g_bPreViewPullFlag) {
 
 		if(TRUE == flow_preview_get_stop_flag()){
-			DBG_ERR("Stop!!!!!!!!!!!!!!!!!\n");
+			DBG_WRN("detected stop signal, power off ...\n");
 			stop_flag = TRUE;
 			hd_ret = HD_ERR_ABORT;
 			goto exit;
@@ -1547,7 +1547,7 @@ THREAD_RETTYPE PhotoFast_FlowPreviewThread(void *arg)
 
 				++g_vprc_frm_cnt;
 
-				if(duration >= period){
+				if(duration >= (period - 17)){
 					break;
 				}
 				else{
@@ -1993,6 +1993,9 @@ void Set_AEMODE(UINT32 id)
 	AWBT_STATUS status = {0};
     ISPT_C_GAIN c_gain = {0};
 	HD_RESULT hd_ret;
+#if HUNTING_CAMERA_MCU == ENABLE
+     UIMenuStoreInfo *puiPara = sf_ui_para_get();
+#endif
 
 	memset(&ae_status, 0, sizeof(AET_STATUS_INFO));
 
@@ -2009,13 +2012,29 @@ void Set_AEMODE(UINT32 id)
 		//DBG_ERR(">> aet manual exp %d iso %d\r\n",ae_manual.manual.expotime,ae_manual.manual.iso_gain);
 		if (id == 1){
 				ae_manual.manual.mode = 1;
+				#if HUNTING_CAMERA_MCU == ENABLE
+				if (puiPara->NightMode == 0) {
+					ae_manual.manual.expotime = 125000;//ae_status.status_info.expotime[0];
+				    ae_manual.manual.iso_gain = ae_status.status_info.iso_gain[0]*ae_status.status_info.expotime[0]/125000;
+					}
+				else if (puiPara->NightMode == 1) {
+					ae_manual.manual.expotime = 66666;//ae_status.status_info.expotime[0];
+				    ae_manual.manual.iso_gain = ae_status.status_info.iso_gain[0]*ae_status.status_info.expotime[0]/66666;
+					}
+				else {
+					ae_manual.manual.expotime = ae_status.status_info.expotime[0];
+				    ae_manual.manual.iso_gain = ae_status.status_info.iso_gain[0];
+					}
+					
+                #else
 				ae_manual.manual.expotime = ae_status.status_info.expotime[0];
 				ae_manual.manual.iso_gain = ae_status.status_info.iso_gain[0];
-				ISPT_TOTAL_GAIN total;
+				#endif
+				/*ISPT_TOTAL_GAIN total;
 
 				total.id = 0;
 				 total.gain = 1600;
-				vendor_isp_set_common(ISPT_ITEM_TOTAL_GAIN, &total);
+				vendor_isp_set_common(ISPT_ITEM_TOTAL_GAIN, &total);*/
 				nvt_cmdsys_runcmd("ae dbg 0 0 0 ");
 		}
 		else {
@@ -2074,6 +2093,11 @@ BOOL PhotoFast_SetTriggerFrmCnt(UINT32 cnt)
 	return TRUE;
 }
 
+UINT32 PhotoFast_GetTriggerFrmCnt(VOID)
+{
+	return g_vcap_trigger_frm_count;
+}
+
 BOOL PhotoFast_SetTick(UINT32 cnt, VOS_TICK tick)
 {
 	if(cnt > VD_TICK_BUF_SIZE){