Merge pull request #473 from Links2004/esp8266

SDK patches

tools/sdk/changelog.txt

@@ -1,3 +1,32 @@
+esp_iot_sdk_1.1.2_15_06_25_p2 Release Note 
+-------------------------------------------
+
+Here is a patch based on SDK_v1.1.2 solved problem of abnormal current during modem-sleep. 
+Please replace the lib in \esp_iot_sdk_v1.1.2\lib
+
+Sorry for the inconvenience.
+
+esp_iot_sdk_v1.1.2_15_06_24_p1.1 Release Note 
+-------------------------------------------
+
+Here is a patch for AT firmware based on SDK_v1.1.2 resolved issue that AT user parameter area was located in wrong address，it may cause WiFi configuration goes wrong.
+
+Please update to this new AT bin files and call "AT+RESTORE" to factory reset. If you call “AT+CIPUPDATE” to upgrade，please also call "AT+RESTORE" to factory reset once.
+
+“AT_bin_v0.25_1024+KB_flash_can_upgrade.zip”
+- normal AT bin，runs with boot.bin，can FOTA upgrade，need to use 1024KB flash
+
+“AT_bin_v0.25_for_512KB_flash_cannot_upgrade.zip”
+- for old version module which flash size is 512KB
+eagle.flash.bin downloads to flash 0x00000
+eagle.irom0text.bin downloads to flash 0x40000
+can not FOTA upgrade，please don‘t call “AT+CIPUPDATE”
+
+"SDK_v1.1.2_AT_patch_01.zip"
+- libs for users who need to compile their own AT firmware，replace libs in \esp_iot_sdk_v1.1.2\lib
+
+So sorry for the inconvenience.
+
 esp_iot_sdk_v1.1.2_15_06_16_p1 Release Note 
 -------------------------------------------
 Here is a patch based on SDK_v1.1.2 resolved issue that "wifi_station_scan" cause loss of wireless connectivity.

tools/sdk/version

@@ -1 +1 @@
-1.1.2_15_06_16_p1
+1.1.2_15_06_25_p2