diff --git a/VERSION b/VERSION
new file mode 100644
index 00000000..13f5961f
--- /dev/null
+++ b/VERSION
@@ -0,0 +1,2 @@
+lwip:   6ee4a9b3
+driver: 7bee5263
diff --git a/driver_lib/driver/hw_timer.c b/driver_lib/driver/hw_timer.c
index 95529715..37383f00 100644
--- a/driver_lib/driver/hw_timer.c
+++ b/driver_lib/driver/hw_timer.c
@@ -49,15 +49,36 @@ typedef enum {          // timer interrupt mode
 
 static void (* user_hw_timer_cb)(void) = NULL;
 
+bool frc1_auto_load = false;
+
 static void hw_timer_isr_cb(void *arg)
 {
+    if(frc1_auto_load == false ) {
+        RTC_REG_WRITE(FRC1_CTRL_ADDRESS,
+                      DIVDED_BY_16 | TM_EDGE_INT);
+    }
+
     if (user_hw_timer_cb != NULL) {
         (*(user_hw_timer_cb))();
     }
 }
 
-void hw_timer_arm(uint32 val)
+void hw_timer_disarm(void)
 {
+    RTC_REG_WRITE(FRC1_CTRL_ADDRESS,0);
+}
+
+void hw_timer_arm(uint32 val ,bool req)
+{
+    frc1_auto_load = req;
+    if (frc1_auto_load == true) {
+        RTC_REG_WRITE(FRC1_CTRL_ADDRESS,
+                      FRC1_AUTO_LOAD | DIVDED_BY_16 | FRC1_ENABLE_TIMER | TM_EDGE_INT);
+    } else {
+        RTC_REG_WRITE(FRC1_CTRL_ADDRESS,
+                      DIVDED_BY_16 | FRC1_ENABLE_TIMER | TM_EDGE_INT);
+    }
+
     RTC_REG_WRITE(FRC1_LOAD_ADDRESS, US_TO_RTC_TIMER_TICKS(val));
 }
 
@@ -66,8 +87,9 @@ void hw_timer_set_func(void (* user_hw_timer_cb_set)(void))
     user_hw_timer_cb = user_hw_timer_cb_set;
 }
 
-void hw_timer_init(uint8 req)
+void hw_timer_init(void)
 {
+#if 0
     if (req == 1) {
         RTC_REG_WRITE(FRC1_CTRL_ADDRESS,
                       FRC1_AUTO_LOAD | DIVDED_BY_16 | FRC1_ENABLE_TIMER | TM_EDGE_INT);
@@ -76,6 +98,7 @@ void hw_timer_init(uint8 req)
                       DIVDED_BY_16 | FRC1_ENABLE_TIMER | TM_EDGE_INT);
     }
 
+#endif
     _xt_isr_attach(ETS_FRC_TIMER1_INUM, hw_timer_isr_cb, NULL);
 
     TM1_EDGE_INT_ENABLE();
@@ -108,8 +131,8 @@ void hw_test_timer_cb(void)
 
 void user_init(void)
 {
-    hw_timer_init(1);
-    hw_timer_set_func(hw_test_timer_cb);
+    hw_timer_init();
+    hw_timer_set_func(hw_test_timer_cb,1);
     hw_timer_arm(100);
 }
 #endif
diff --git a/driver_lib/driver/spi_interface.c b/driver_lib/driver/spi_interface.c
index 0e8b81de..3cffe14b 100644
--- a/driver_lib/driver/spi_interface.c
+++ b/driver_lib/driver/spi_interface.c
@@ -22,6 +22,7 @@
 #include "spi_interface.h"
 #include "esp8266/eagle_soc.h"
 #include "esp8266/ets_sys.h"
+#include "esp8266/pin_mux_register.h"
 #include "esp_libc.h"
 //*****************************************************************************
 //
@@ -123,6 +124,10 @@ void ICACHE_FLASH_ATTR SPIInit(SpiNum spiNum, SpiAttr* pAttr)
         // SPI Speed
         if (1 < (pAttr->speed)) {
             CLEAR_PERI_REG_MASK(SPI_CLOCK(spiNum), SPI_CLK_EQU_SYSCLK);
+            if (spiNum == SpiNum_HSPI) {
+                CLEAR_PERI_REG_MASK(PERIPHS_IO_MUX_CONF_U, SPI1_CLK_EQU_SYS_CLK);
+            }
+
             WRITE_PERI_REG(SPI_CLOCK(spiNum),
                            ((pAttr->speed & SPI_CLKCNT_N) << SPI_CLKCNT_N_S) |
                            ((((pAttr->speed + 1) / 2 - 1) & SPI_CLKCNT_H) << SPI_CLKCNT_H_S) |
@@ -169,6 +174,8 @@ void ICACHE_FLASH_ATTR SPIInit(SpiNum spiNum, SpiAttr* pAttr)
 
     //clear Daul or Quad lines transmission mode
     CLEAR_PERI_REG_MASK(SPI_CTRL(spiNum), SPI_QIO_MODE | SPI_DIO_MODE | SPI_DOUT_MODE | SPI_QOUT_MODE);
+    SET_PERI_REG_MASK(SPI_CTRL(spiNum), SPI_FASTRD_MODE);
+
 }
 
 /**
@@ -258,6 +265,7 @@ int ICACHE_FLASH_ATTR SPIMasterSendData(SpiNum spiNum, SpiData* pInData)
         SET_PERI_REG_BITS(SPI_USER1(spiNum), SPI_USR_MOSI_BITLEN, ((pInData->dataLen << 3) - 1), SPI_USR_MOSI_BITLEN_S);
     } else {
         CLEAR_PERI_REG_MASK(SPI_USER(spiNum), SPI_USR_MOSI);
+        CLEAR_PERI_REG_MASK(SPI_USER(spiNum), SPI_USR_MISO);
         SET_PERI_REG_BITS(SPI_USER1(spiNum), SPI_USR_MOSI_BITLEN,
                           0, SPI_USR_MOSI_BITLEN_S);
     }
@@ -329,9 +337,15 @@ int ICACHE_FLASH_ATTR SPIMasterRecvData(SpiNum spiNum, SpiData* pOutData)
         SET_PERI_REG_BITS(SPI_USER1(spiNum), SPI_USR_MISO_BITLEN,
                           0, SPI_USR_MISO_BITLEN_S);
     }
+
+    //CLEAR FIFO DATA
+    int fifo_idx = 0;
+    do {
+        WRITE_PERI_REG(SPI_W0(spiNum) + (fifo_idx << 2), 0);
+    } while (++fifo_idx < (pOutData->dataLen / 4));
+
     // Start send data
     SET_PERI_REG_MASK(SPI_CMD(spiNum), SPI_USR);
-
     while (READ_PERI_REG(SPI_CMD(spiNum))&SPI_USR);
     // Read data out
     do {
diff --git a/driver_lib/driver/uart.c b/driver_lib/driver/uart.c
index 393845fc..125f3762 100644
--- a/driver_lib/driver/uart.c
+++ b/driver_lib/driver/uart.c
@@ -329,7 +329,7 @@ UART_IntrConfig(UART_Port uart_no,  UART_IntrConfTypeDef *pUARTIntrConf)
 
     uint32 reg_val = 0;
     UART_ClearIntrStatus(uart_no, UART_INTR_MASK);
-    reg_val = READ_PERI_REG(UART_CONF1(uart_no)) & ~((UART_RX_FLOW_THRHD << UART_RX_FLOW_THRHD_S) | UART_RX_FLOW_EN) ;
+    reg_val = READ_PERI_REG(UART_CONF1(uart_no)) & ((UART_RX_FLOW_THRHD << UART_RX_FLOW_THRHD_S) | UART_RX_FLOW_EN) ;
 
     reg_val |= ((pUARTIntrConf->UART_IntrEnMask & UART_RXFIFO_TOUT_INT_ENA) ?
                 ((((pUARTIntrConf->UART_RX_TimeOutIntrThresh)&UART_RX_TOUT_THRHD) << UART_RX_TOUT_THRHD_S) | UART_RX_TOUT_EN) : 0);
diff --git a/driver_lib/include/gpio.h b/driver_lib/include/gpio.h
index 4927a325..f093fada 100644
--- a/driver_lib/include/gpio.h
+++ b/driver_lib/include/gpio.h
@@ -28,7 +28,7 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
-
+#include "esp8266/gpio_register.h"
 #define GPIO_Pin_0              (BIT(0))  /* Pin 0 selected */
 #define GPIO_Pin_1              (BIT(1))  /* Pin 1 selected */
 #define GPIO_Pin_2              (BIT(2))  /* Pin 2 selected */
@@ -190,7 +190,7 @@ typedef struct {
   *  
   * @return  the level of GPIO input 
   */
-#define GPIO_INPUT_GET(gpio_no)     ((gpio_input_get()>>gpio_no)&BIT0)
+#define GPIO_INPUT_GET(gpio_no)     ((gpio_input_get()>>gpio_no)&BIT(0))
 
 /**  
   * @brief   Enable GPIO16 output.
diff --git a/driver_lib/include/hw_timer.h b/driver_lib/include/hw_timer.h
index 3cbb5407..50b8fe19 100644
--- a/driver_lib/include/hw_timer.h
+++ b/driver_lib/include/hw_timer.h
@@ -44,11 +44,11 @@ extern "C" {
 /**
   * @brief   Initialize the hardware ISR timer.
   *
-  * @param   uint8 req : 0, not autoload; 1, autoload mode.
+  * @param   null
   *
   * @return  null
   */
-void hw_timer_init(uint8 req);
+void hw_timer_init(void);
 
 /**
   * @brief   Set a trigger timer delay to enable this timer.
@@ -57,9 +57,20 @@ void hw_timer_init(uint8 req);
   *    - In autoload mode, range : 50 ~ 0x7fffff
   *    - In non-autoload mode, range : 10 ~ 0x7fffff
   *
+  * @param   uint8 req : 0, not autoload; 1, autoload mode.
+  * 
   * @return  null
   */
-void hw_timer_arm(uint32 val);
+void hw_timer_arm(uint32 val, bool req);
+
+/**
+  * @brief   disable this timer.
+  *
+  * @param   null
+  * 
+  * @return  null
+  */
+void hw_timer_disarm(void);
 
 /**
   * @brief   Set timer callback function.
diff --git a/driver_lib/make_lib.sh b/driver_lib/make_lib.sh
index ec83c618..6e3e75f3 100755
--- a/driver_lib/make_lib.sh
+++ b/driver_lib/make_lib.sh
@@ -1,11 +1,23 @@
-#!/bin/bash -x
+#!/bin/bash
+set -e
 
-echo "make_lib.sh version 20160307"
+export SDK_PATH=$(dirname $(pwd))
+
+echo "make_lib.sh version 20150924"
 echo ""
 
+if [ $SDK_PATH ]; then
+    echo "SDK_PATH:"
+    echo "$SDK_PATH"
+    echo ""
+else
+    echo "ERROR: Please export SDK_PATH in make_lib.sh firstly, exit!!!"
+    exit
+fi
+
 cd $1
 make clean
-make COMPILE=gcc
-cp .output/eagle/debug/lib/lib$1.a ../../lib/lib$1.a
-xtensa-lx106-elf-strip --strip-unneeded ../../lib/lib$1.a
+make
+cp .output/eagle/debug/lib/lib$1.a $SDK_PATH/lib/lib$1.a
+xtensa-lx106-elf-strip --strip-unneeded $SDK_PATH/lib/lib$1.a
 cd ..
diff --git a/include/espressif/esp8266/pin_mux_register.h b/include/espressif/esp8266/pin_mux_register.h
index 33a2e769..3ee05560 100644
--- a/include/espressif/esp8266/pin_mux_register.h
+++ b/include/espressif/esp8266/pin_mux_register.h
@@ -24,7 +24,7 @@
 
 #ifndef _PIN_MUX_H_
 #define _PIN_MUX_H_
-
+#include "eagle_soc.h"
 #define PERIPHS_IO_MUX                  0x60000800
 
 #define PERIPHS_IO_MUX_FUNC             0x13
diff --git a/include/lwip/lwip/dhcp.h b/include/lwip/lwip/dhcp.h
index 32b5028f..92a5f185 100644
--- a/include/lwip/lwip/dhcp.h
+++ b/include/lwip/lwip/dhcp.h
@@ -16,7 +16,7 @@ extern "C" {
 #endif
 
 /** period (in seconds) of the application calling dhcp_coarse_tmr() */
-#define DHCP_COARSE_TIMER_SECS 60 
+#define DHCP_COARSE_TIMER_SECS 1
 /** period (in milliseconds) of the application calling dhcp_coarse_tmr() */
 #define DHCP_COARSE_TIMER_MSECS (DHCP_COARSE_TIMER_SECS * 1000UL)
 /** period (in milliseconds) of the application calling dhcp_fine_tmr() */
@@ -46,9 +46,9 @@ struct dhcp
   struct pbuf *p_out; /* pbuf of outcoming msg */
   struct dhcp_msg *msg_out; /* outgoing msg */
   u16_t options_out_len; /* outgoing msg options length */
-  u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */
-  u16_t t1_timeout;  /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
-  u16_t t2_timeout;  /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
+  u32_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */
+  u32_t t1_timeout;  /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
+  u32_t t2_timeout;  /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
   ip_addr_t server_ip_addr; /* dhcp server address that offered this lease */
   ip_addr_t offered_ip_addr;
   ip_addr_t offered_sn_mask;
diff --git a/include/lwip/lwip/dhcpserver.h b/include/lwip/lwip/dhcpserver.h
index 1e45a09b..e07b5417 100644
--- a/include/lwip/lwip/dhcpserver.h
+++ b/include/lwip/lwip/dhcpserver.h
@@ -48,6 +48,7 @@ typedef struct _list_node{
 }list_node;
 
 extern u32_t dhcps_lease_time;
+#define DHCPS_COARSE_TIMER_SECS  1
 #define DHCPS_LEASE_TIMER  dhcps_lease_time  //0x05A0
 #define DHCPS_MAX_LEASE 0x64
 #define BOOTP_BROADCAST 0x8000
diff --git a/include/lwip/lwipopts.h b/include/lwip/lwipopts.h
index e133488c..9df03236 100644
--- a/include/lwip/lwipopts.h
+++ b/include/lwip/lwipopts.h
@@ -163,6 +163,19 @@
  */
 #define IP_REASS_MAX_PBUFS              10
 
+/**
+ * ETHARP_TRUST_IP_MAC==1: Incoming IP packets cause the ARP table to be
+ * updated with the source MAC and IP addresses supplied in the packet.
+ * You may want to disable this if you do not trust LAN peers to have the
+ * correct addresses, or as a limited approach to attempt to handle
+ * spoofing. If disabled, lwIP will need to make a new ARP request if
+ * the peer is not already in the ARP table, adding a little latency.
+ * The peer *is* in the ARP table if it requested our address before.
+ * Also notice that this slows down input processing of every IP packet!
+ */
+#define ETHARP_TRUST_IP_MAC             1
+
+
 /*
    ----------------------------------
    ---------- ICMP options ----------
diff --git a/lib/libdriver.a b/lib/libdriver.a
index e0b184c4..b4e08e8a 100644
Binary files a/lib/libdriver.a and b/lib/libdriver.a differ
diff --git a/lib/liblwip.a b/lib/liblwip.a
index db26bb85..917ac40d 100644
Binary files a/lib/liblwip.a and b/lib/liblwip.a differ
diff --git a/lib/libmain.a b/lib/libmain.a
index 24eb8967..c1188f4c 100644
Binary files a/lib/libmain.a and b/lib/libmain.a differ
diff --git a/lib/libnet80211.a b/lib/libnet80211.a
index 509633cd..fc38faf6 100644
Binary files a/lib/libnet80211.a and b/lib/libnet80211.a differ
diff --git a/lib/libpp.a b/lib/libpp.a
index 65d427a5..aff5377f 100644
Binary files a/lib/libpp.a and b/lib/libpp.a differ
diff --git a/third_party/lwip/core/dhcp.c b/third_party/lwip/core/dhcp.c
index 9199121a..77d6e93c 100644
--- a/third_party/lwip/core/dhcp.c
+++ b/third_party/lwip/core/dhcp.c
@@ -1058,12 +1058,9 @@ dhcp_bind(struct netif *netif)
     /* set renewal period timer */
     LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_bind(): t1 renewal timer %"U32_F" secs\n", dhcp->offered_t1_renew));
     timeout = (dhcp->offered_t1_renew + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS;
-    if(timeout > 0xffff) {
-      timeout = 0xffff;
-    }
     dhcp->t1_timeout = (u16_t)timeout;
     if (dhcp->t1_timeout == 0) {
-      dhcp->t1_timeout = 1;
+      dhcp->t1_timeout = 60;
     }
     LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_bind(): set request timeout %"U32_F" msecs\n", dhcp->offered_t1_renew*1000));
   }
@@ -1071,12 +1068,9 @@ dhcp_bind(struct netif *netif)
   if (dhcp->offered_t2_rebind != 0xffffffffUL) {
     LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_bind(): t2 rebind timer %"U32_F" secs\n", dhcp->offered_t2_rebind));
     timeout = (dhcp->offered_t2_rebind + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS;
-    if(timeout > 0xffff) {
-      timeout = 0xffff;
-    }
     dhcp->t2_timeout = (u16_t)timeout;
     if (dhcp->t2_timeout == 0) {
-      dhcp->t2_timeout = 1;
+      dhcp->t2_timeout = (dhcp->t1_timeout>>2)*7;
     }
     LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_bind(): set request timeout %"U32_F" msecs\n", dhcp->offered_t2_rebind*1000));
   }
diff --git a/third_party/lwip/core/dhcpserver.c b/third_party/lwip/core/dhcpserver.c
index 685da6f0..31ea2d06 100644
--- a/third_party/lwip/core/dhcpserver.c
+++ b/third_party/lwip/core/dhcpserver.c
@@ -576,6 +576,7 @@ static u8_t parse_options(u8_t *optptr, s16_t len)
 ///////////////////////////////////////////////////////////////////////////////////
 static s16_t parse_msg(struct dhcps_msg *m, u16_t len)
 {
+	u32_t lease_timer = (dhcps_lease_time * 60)/DHCPS_COARSE_TIMER_SECS;
 		if(memcmp((char *)m->options,
               &magic_cookie,
               sizeof(magic_cookie)) == 0){
@@ -632,7 +633,7 @@ static s16_t parse_msg(struct dhcps_msg *m, u16_t len)
 								    renew = true;
 								}
 								client_address.addr = pdhcps_pool->ip.addr;
-								pdhcps_pool->lease_timer = DHCPS_LEASE_TIMER;
+								pdhcps_pool->lease_timer = lease_timer;
 								pnode = pback_node;
 								goto POOL_CHECK;
 							} else if (pdhcps_pool->ip.addr == client_address_plus.addr){
@@ -669,7 +670,7 @@ static s16_t parse_msg(struct dhcps_msg *m, u16_t len)
 						pdhcps_pool = (struct dhcps_pool *)os_zalloc(sizeof(struct dhcps_pool));
 						pdhcps_pool->ip.addr = client_address.addr;
 						memcpy(pdhcps_pool->mac, m->chaddr, sizeof(pdhcps_pool->mac));
-						pdhcps_pool->lease_timer = DHCPS_LEASE_TIMER;
+						pdhcps_pool->lease_timer = lease_timer;
 						pnode = (list_node *)os_zalloc(sizeof(list_node ));
 						pnode->pnode = pdhcps_pool;
 						    pnode->pnext = NULL;