diff --git a/build/bin/ota.bin b/build/bin/ota.bin
index 834dccd..116e923 100644
Binary files a/build/bin/ota.bin and b/build/bin/ota.bin differ
diff --git a/build/bin/ram_2.bin b/build/bin/ram_2.bin
index 4ee3c93..e270a42 100644
Binary files a/build/bin/ram_2.bin and b/build/bin/ram_2.bin differ
diff --git a/build/bin/ram_2.ns.bin b/build/bin/ram_2.ns.bin
index f52ffac..6318ae3 100644
Binary files a/build/bin/ram_2.ns.bin and b/build/bin/ram_2.ns.bin differ
diff --git a/build/bin/ram_2.p.bin b/build/bin/ram_2.p.bin
index 78b2e7d..8f06d17 100644
Binary files a/build/bin/ram_2.p.bin and b/build/bin/ram_2.p.bin differ
diff --git a/build/bin/ram_all.bin b/build/bin/ram_all.bin
index 7140823..613fc48 100644
Binary files a/build/bin/ram_all.bin and b/build/bin/ram_all.bin differ
diff --git a/build/obj/build.nmap b/build/obj/build.nmap
index af17c5d..bacaca7 100644
--- a/build/obj/build.nmap
+++ b/build/obj/build.nmap
@@ -933,369 +933,369 @@
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 10016bd0 T vPortSVCHandler
 10016bf0 t pxCurrentTCBConst2
 10016bf4 T vPortEnterCritical
@@ -2667,65 +2667,65 @@
 1003c2f0 T ODM_TXPowerTrackingCallback_ThermalMeter
 1003c6fc T ODM_ResetIQKResult
 1003c744 T ODM_GetRightChnlPlaceforIQK
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 1003d2d8 d bitrate_table
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@@ -2786,9 +2786,9 @@
 10047e34 d crc_table
 10048034 d D
 100488b4 D mad_timer_zero
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 10049554 D ip_addr_any
@@ -2805,36 +2805,36 @@
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 1004a7d4 D wlancmds
 1004a9cc D rtw_cmd_callback
 1004ac58 d RTW_ChannelPlan2G
@@ -2936,7 +2936,7 @@
 1004dc2c d dhcp_server_state_machine
 1004dc2d d dhcp_recorded_xid
 1004dc34 d uxCriticalNesting
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+1004dc38 d seed.12497
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 1004dc44 d last_wakelock_state
diff --git a/project/src/driver/i2s_freertos.c b/project/src/driver/i2s_freertos.c
index 8fdefdc..1c7cf68 100644
--- a/project/src/driver/i2s_freertos.c
+++ b/project/src/driver/i2s_freertos.c
@@ -128,7 +128,9 @@ int i2sInit(int mask, int bufsize, int word_len) { // word_len = WL_16b or WL_24
 				HalPinCtrlRtl8195A(JTAG, 0, 0);
 				i2s_init(pi2s_obj, I2S0_SCLK_PIN, I2S0_WS_PIN, I2S0_SD_PIN);
 			    // Create a Semaphone
-				RtlInitSema(&I2sTxSema, 1);
+			    
+//				RtlInitSema(&I2sTxSema, 1); // 
+				I2sTxSema = xSemaphoreCreateCounting(MAX_SEMA_COUNT, 1); 
 			}
 			else i2s_init(pi2s_obj, I2S1_SCLK_PIN, I2S1_WS_PIN, I2S1_SD_PIN);
 			i2s_set_param(pi2s_obj, pi2s_obj->channel_num, pi2s_obj->sampling_rate, pi2s_obj->word_length);
diff --git a/project/src/user/atcmd_user.c b/project/src/user/atcmd_user.c
index 02a7a02..3f98bfa 100644
--- a/project/src/user/atcmd_user.c
+++ b/project/src/user/atcmd_user.c
@@ -5,6 +5,7 @@
 #include "FreeRTOS.h"
 #include "task.h"
 #include "semphr.h"
+#include "freertos_pmu.h"
 #include "at_cmd/log_service.h"
 #include "at_cmd/atcmd_wifi.h"
 #include <lwip_netconf.h>
@@ -327,17 +328,17 @@ LOCAL void fATSP(int argc, char *argv[])
 		switch (argv[1][0]) {
 		case 'a': // acquire
 		{
-			acquire_wakelock(atoi(argv[2]));
+			pmu_acquire_wakelock(atoi(argv[2]));
 			break;
 		}
 		case 'r': // release
 		{
-			release_wakelock(atoi(argv[2]));
+			pmu_release_wakelock(atoi(argv[2]));
 			break;
 		}
 		};
 	};
-	printf("WakeLock Status %d\n", get_wakelock_status());
+	printf("WakeLock Status %d\n", pmu_get_wakelock_status());
 }
 //------------------------------------------------------------------------------
 //------------------------------------------------------------------------------
diff --git a/project/src/user/wifi_console.c b/project/src/user/wifi_console.c
index b8af14d..d789733 100644
--- a/project/src/user/wifi_console.c
+++ b/project/src/user/wifi_console.c
@@ -7,6 +7,7 @@
 
 #include <autoconf.h>
 #include "FreeRTOS.h"
+#include "freertos_pmu.h"
 #include "diag.h"
 #include "wifi_api.h"
 #include "wifi_conf.h"
@@ -226,7 +227,7 @@ LOCAL void fATSF(int argc, char *argv[])
 
 LOCAL void fATWP(int argc, char *argv[]) {
 	if(argc > 1) {
-		release_wakelock(0xffff);
+		pmu_release_wakelock(0xffff);
 		wifi_set_power_mode(1, 1);
 		wifi_set_lps_dtim(atoi(argv[1]));
 	}
diff --git a/userset.mk b/userset.mk
index 17ed53a..aba51fe 100644
--- a/userset.mk
+++ b/userset.mk
@@ -1,6 +1,7 @@
 #=============================================
 # User defined
 #=============================================
+#SDK_PATH ?= ../RTL00_WEB/USDK/
 SDK_PATH ?= RTL00_SDKV35a/
 #GCC_PATH = d:/MCU/GNU_Tools_ARM_Embedded/5.2_2015q4/bin/# + or set in PATH
 #OPENOCD_PATH = d:/MCU/OpenOCD/bin/# + or set in PATH