diff --git a/component/xc6xx_drivers/Drivers/CMSIS/Device/xc6xxx.h b/component/xc6xx_drivers/Drivers/CMSIS/Device/xc6xxx.h
index 6e78491..00dd243 100644
--- a/component/xc6xx_drivers/Drivers/CMSIS/Device/xc6xxx.h
+++ b/component/xc6xx_drivers/Drivers/CMSIS/Device/xc6xxx.h
@@ -247,8 +247,8 @@ do { \
         (__HANDLE__)->Lock = HAL_UNLOCKED;                                     \
     } while (0U)
 
-#if ((__ARMCC_VERSION % 1000) != 960)
-    #error "Compiler build number mismatch. Required: build 960."
+#if ((__ARMCC_VERSION % 1000) != 750)
+    #error "Compiler build number mismatch. Required: build 750."
 #endif
 
 /* Macro to get variable aligned on 4-bytes, for __ICCARM__ the directive
diff --git a/make_release_bin.bat b/make_release_bin.bat
new file mode 100644
index 0000000..35a3822
--- /dev/null
+++ b/make_release_bin.bat
@@ -0,0 +1,5 @@
+@echo off
+setlocal
+cd /d "%~dp0"
+powershell -ExecutionPolicy Bypass -File "%~dp0tools\make_release_bin.ps1" %*
+exit /b %errorlevel%
diff --git a/project/example/ble/ble_peripheral/app/src/app_task.c b/project/example/ble/ble_peripheral/app/src/app_task.c
index ac90d9d..7e148a9 100644
--- a/project/example/ble/ble_peripheral/app/src/app_task.c
+++ b/project/example/ble/ble_peripheral/app/src/app_task.c
@@ -538,6 +538,7 @@ static uint8_t gapc_callback(ke_msg_id_t const msgid, void const *param,
         if (p_param->role == GAPM_ROLE_SLAVE) {
             app_env.slave_conidx    = conidx;
             app_env.slave_connected = true;
+            ble_state_on_connect();
         }
         // Check if the received connection index is valid
         if (conidx != GAP_INVALID_CONIDX) {
@@ -563,6 +564,7 @@ static uint8_t gapc_callback(ke_msg_id_t const msgid, void const *param,
         if (conidx == app_env.slave_conidx) {
             app_env.slave_conidx    = INVALID_DATA;
             app_env.slave_connected = false;
+            ble_state_on_disconnect();
             app_start_advertising();
         }
         custom_svc_tx_char_notify = DISABLE;
diff --git a/project/example/ble/ble_peripheral/app/src/rf433.c b/project/example/ble/ble_peripheral/app/src/rf433.c
index 0546062..3dd87f7 100644
--- a/project/example/ble/ble_peripheral/app/src/rf433.c
+++ b/project/example/ble/ble_peripheral/app/src/rf433.c
@@ -8,6 +8,7 @@
 #include "timeslice.h"
 #include "dbg.h"
 #include "rf433_decoder.h"
+#include "usr_server.h"
 ////用bit表示通道
 //#define CH_GPIO2  0x01
 //#define CH_GPIO5  0x10
@@ -215,11 +216,13 @@ void _433_fun(void)
 			 if(match_ch & MATCH_CH2){
             xc_gpio_toggle_pin(GPIO_2);	
             flash_ch2_state=xc_gpio_read_pin(GPIO_2);
+            ble_state_mark_dirty(BLE_STATE_DIRTY_OUTPUT | BLE_STATE_DIRTY_RF433);
         }
        
         if(match_ch & MATCH_CH1){
             xc_gpio_toggle_pin(GPIO_5);	
             flash_ch1_state=xc_gpio_read_pin(GPIO_5);
+            ble_state_mark_dirty(BLE_STATE_DIRTY_OUTPUT | BLE_STATE_DIRTY_RF433);
         }
        
        
@@ -231,11 +234,13 @@ void _433_fun(void)
 					{
 						xc_gpio_write_pin(GPIO_2,GPIO_PIN_RESET);
 						flash_ch2_state=xc_gpio_read_pin(GPIO_2);
+            ble_state_mark_dirty(BLE_STATE_DIRTY_OUTPUT | BLE_STATE_DIRTY_RF433);
 					}
 					 if(match_ch & MATCH_CH1)
 					{
 							xc_gpio_write_pin(GPIO_5,GPIO_PIN_RESET);	
 							flash_ch1_state=xc_gpio_read_pin(GPIO_5);
+            ble_state_mark_dirty(BLE_STATE_DIRTY_OUTPUT | BLE_STATE_DIRTY_RF433);
 					}
 					
 				
@@ -246,12 +251,14 @@ void _433_fun(void)
 					{
 						xc_gpio_write_pin(GPIO_2,GPIO_PIN_SET);
 						flash_ch2_state=xc_gpio_read_pin(GPIO_2);
+            ble_state_mark_dirty(BLE_STATE_DIRTY_OUTPUT | BLE_STATE_DIRTY_RF433);
 					}
 					
 					if(match_ch & MATCH_CH1)
 					{
 							xc_gpio_write_pin(GPIO_5,GPIO_PIN_SET);	
 							flash_ch1_state=xc_gpio_read_pin(GPIO_5);
+            ble_state_mark_dirty(BLE_STATE_DIRTY_OUTPUT | BLE_STATE_DIRTY_RF433);
 					}
 					
 				
diff --git a/project/example/ble/ble_peripheral/app/src/timeslice.c b/project/example/ble/ble_peripheral/app/src/timeslice.c
index c62c728..3407b55 100644
--- a/project/example/ble/ble_peripheral/app/src/timeslice.c
+++ b/project/example/ble/ble_peripheral/app/src/timeslice.c
@@ -6,6 +6,7 @@
 #include "ota_flash_interface.h"
 #include "ota_protocol.h"
 #include "rf433_decoder.h"
+#include "usr_server.h"
 TASK_COMPONENTS TaskComps[] = 
 {
 	{0, 50, 50, ble_message_process},			  //蓝牙处理任务 
@@ -17,6 +18,7 @@ TASK_COMPONENTS TaskComps[] =
 	{0, 10, 10,trigger_check_process},							
 	{0, 300, 300, app_op_flash},				//用户数据持久化 fmc_spi_read9	         
 	{0, 300, 300, xc_ota_schedule},					//保存flash数据任务				
+	{0, 1, 2, ble_state_sync_poll},
 };
 
 
diff --git a/project/example/ble/ble_peripheral/app/src/uart_1.c b/project/example/ble/ble_peripheral/app/src/uart_1.c
index 93ff42d..70b7dee 100644
--- a/project/example/ble/ble_peripheral/app/src/uart_1.c
+++ b/project/example/ble/ble_peripheral/app/src/uart_1.c
@@ -1,6 +1,7 @@
 #include "uart_1.h"
 #include "xc_drv_gpio.h"
 #include "rf433.h"
+#include "usr_server.h"
 //#include "dbg.h"
 ble_data_msg user_ble_data_msg; 
 ble_data_msg *p_ble_data_msg = NULL;
@@ -96,6 +97,7 @@ void ble_message_process(void)
 			
 			
 			scan_uart(temp);
+			ble_state_mark_dirty(BLE_STATE_DIRTY_LIGHT | BLE_STATE_DIRTY_OUTPUT);
 
 			p_ble_data_msg = NULL;
 
diff --git a/project/example/ble/ble_peripheral/app/src/usr_server.c b/project/example/ble/ble_peripheral/app/src/usr_server.c
index 28b2c24..8105ad6 100644
--- a/project/example/ble/ble_peripheral/app/src/usr_server.c
+++ b/project/example/ble/ble_peripheral/app/src/usr_server.c
@@ -13,8 +13,12 @@
  */
 #include "usr_server.h"
 #include "uart_1.h"
+#include "xc_drv_gpio.h"
 #if (BLE_APP_PRESENT)
 
+extern uint8_t adress_ch1_index;
+extern uint8_t adress_ch2_index;
+
 uint8_t srv_user_lid                                = GATT_INVALID_USER_LID;
 uint16_t custom_svc_start_hdl                       = GATT_INVALID_HDL;
 uint8_t custom_svc_tx_char_notify                   = DISABLE;
@@ -67,6 +71,122 @@ uint16_t srv_get_hdl_from_att_idx(uint8_t idx)
     return custom_svc_start_hdl + idx;
 }
 
+static uint8_t ble_state_dirty = 0;
+static uint8_t ble_state_connect_delay = 0;
+static uint8_t ble_state_last_valid = 0;
+static uint8_t ble_state_last_output = 0;
+static uint8_t ble_state_last_ch1_count = 0;
+static uint8_t ble_state_last_ch2_count = 0;
+
+static uint8_t ble_state_output_mask(void)
+{
+    uint8_t mask = 0;
+
+    if (xc_gpio_read_pin(GPIO_5)) {
+        mask |= 0x01;
+    }
+    if (xc_gpio_read_pin(GPIO_2)) {
+        mask |= 0x02;
+    }
+    return mask;
+}
+
+void ble_state_mark_dirty(uint8_t dirty)
+{
+    ble_state_dirty |= dirty;
+}
+
+static uint8_t ble_state_fill_packet(uint8_t *data)
+{
+    data[0] = 0xA5;
+    data[1] = 0x5A;
+    data[2] = ble_state_dirty;
+    data[3] = ble_state_output_mask();
+    data[4] = 0;
+    data[5] = 0;
+    data[6] = 0;
+    data[7] = FIRMWARE_VERSION_MAJOR;
+    data[8] = FIRMWARE_VERSION_MINOR;
+    data[9] = FIRMWARE_VERSION_PATCH;
+    data[10] = adress_ch1_index;
+    data[11] = adress_ch2_index;
+    data[12] = 0;
+    data[13] = 0;
+    return 14;
+}
+
+static void ble_state_detect_changes(void)
+{
+    uint8_t output = ble_state_output_mask();
+    uint8_t ch1_count = adress_ch1_index;
+    uint8_t ch2_count = adress_ch2_index;
+
+    if (!ble_state_last_valid) {
+        ble_state_last_output = output;
+        ble_state_last_ch1_count = ch1_count;
+        ble_state_last_ch2_count = ch2_count;
+        ble_state_last_valid = 1;
+        return;
+    }
+
+    if (ble_state_last_output != output) {
+        ble_state_last_output = output;
+        ble_state_mark_dirty(BLE_STATE_DIRTY_OUTPUT);
+    }
+
+    if ((ble_state_last_ch1_count != ch1_count) ||
+        (ble_state_last_ch2_count != ch2_count)) {
+        ble_state_last_ch1_count = ch1_count;
+        ble_state_last_ch2_count = ch2_count;
+        ble_state_mark_dirty(BLE_STATE_DIRTY_RF433);
+    }
+}
+
+void ble_state_sync_poll(void)
+{
+    uint8_t data[14];
+    uint8_t len;
+    struct app_env_tag *app_env = get_app_env();
+
+    if (!app_env->slave_connected) {
+        ble_state_connect_delay = 0;
+        ble_state_last_valid = 0;
+        return;
+    }
+
+    if (ble_state_connect_delay > 0) {
+        ble_state_connect_delay--;
+        if (ble_state_connect_delay == 0) {
+            ble_state_mark_dirty(BLE_STATE_DIRTY_FULL);
+        }
+    }
+
+    ble_state_detect_changes();
+
+    if (ble_state_dirty == 0) {
+        return;
+    }
+
+    len = ble_state_fill_packet(data);
+    if (slave_send_data(data, len, CUSTOM_SVC_TX_CHAR_VAL) != INVALID_DATA) {
+        ble_state_dirty = 0;
+    }
+}
+
+void ble_state_on_connect(void)
+{
+    custom_svc_tx_char_notify = ENABLE;
+    ble_state_connect_delay = 20;
+    ble_state_mark_dirty(BLE_STATE_DIRTY_FULL);
+}
+
+void ble_state_on_disconnect(void)
+{
+    custom_svc_tx_char_notify = DISABLE;
+    ble_state_connect_delay = 0;
+    ble_state_last_valid = 0;
+}
+
 // This function is called when GATT server user has initiated event send to
 // peer device or if an error occurs.
 __STATIC void custom_svc_cb_event_sent(uint8_t conidx, uint8_t user_lid,
@@ -126,8 +246,7 @@ __STATIC void custom_svc_cb_att_val_set(uint8_t conidx, uint8_t user_lid,
         } else {
             LOGI("notify ENABLE\r\n");
             custom_svc_tx_char_notify = ENABLE;
-            uint8_t data[]            = {0x12, 0x13, 0x14};
-            slave_send_data(data, sizeof(data), CUSTOM_SVC_TX_CHAR_VAL);
+            ble_state_mark_dirty(BLE_STATE_DIRTY_FULL);
         }
     }
 }
diff --git a/project/example/ble/ble_peripheral/app/src/usr_server.h b/project/example/ble/ble_peripheral/app/src/usr_server.h
index 19567ec..353e955 100644
--- a/project/example/ble/ble_peripheral/app/src/usr_server.h
+++ b/project/example/ble/ble_peripheral/app/src/usr_server.h
@@ -35,6 +35,20 @@ enum cust_svc
     CUSTOM_SVC_TX_CHAR_VAL,
     CUSTOM_SVC_TX_CHAR_CFG,
 };
+
+#define FIRMWARE_VERSION_MAJOR          1
+#define FIRMWARE_VERSION_MINOR          3
+#define FIRMWARE_VERSION_PATCH          0
+
+#define BLE_STATE_DIRTY_FULL            0x01
+#define BLE_STATE_DIRTY_OUTPUT          0x02
+#define BLE_STATE_DIRTY_RF433           0x04
+#define BLE_STATE_DIRTY_LIGHT           0x08
+
 uint8_t custom_svc_add(void);
 uint8_t slave_send_data(uint8_t *data, uint8_t len, uint8_t att_idx);
+void ble_state_mark_dirty(uint8_t dirty);
+void ble_state_sync_poll(void);
+void ble_state_on_connect(void);
+void ble_state_on_disconnect(void);
 #endif // _USR_SERVER_H_
diff --git a/project/example/ble/ble_peripheral/mdk/app.bin b/project/example/ble/ble_peripheral/mdk/app.bin
index b3912ff..354e6ae 100644
Binary files a/project/example/ble/ble_peripheral/mdk/app.bin and b/project/example/ble/ble_peripheral/mdk/app.bin differ
diff --git a/project/example/ble/ble_peripheral/mdk/ble_peripheral.bin b/project/example/ble/ble_peripheral/mdk/ble_peripheral.bin
index 1499bfb..14ca2d3 100644
Binary files a/project/example/ble/ble_peripheral/mdk/ble_peripheral.bin and b/project/example/ble/ble_peripheral/mdk/ble_peripheral.bin differ
diff --git a/project/example/ble/ble_peripheral/mdk/ble_peripheral.uvprojx b/project/example/ble/ble_peripheral/mdk/ble_peripheral.uvprojx
index 7fd1e25..42076a6 100644
--- a/project/example/ble/ble_peripheral/mdk/ble_peripheral.uvprojx
+++ b/project/example/ble/ble_peripheral/mdk/ble_peripheral.uvprojx
@@ -10,7 +10,7 @@
       <TargetName>ble-sdk-xip</TargetName>
       <ToolsetNumber>0x4</ToolsetNumber>
       <ToolsetName>ARM-ADS</ToolsetName>
-      <pCCUsed>5060960::V5.06 update 7 (build 960)::.\ARMCC</pCCUsed>
+      <pCCUsed>5060750::V5.06 update 6 (build 750)::.\ARMCC</pCCUsed>
       <uAC6>0</uAC6>
       <TargetOption>
         <TargetCommonOption>
diff --git a/project/example/ble/ble_peripheral/mdk/output_bin/ble_peripheral.bin b/project/example/ble/ble_peripheral/mdk/output_bin/ble_peripheral.bin
index 1499bfb..14ca2d3 100644
Binary files a/project/example/ble/ble_peripheral/mdk/output_bin/ble_peripheral.bin and b/project/example/ble/ble_peripheral/mdk/output_bin/ble_peripheral.bin differ
diff --git a/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_aes.bin b/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_aes.bin
index 555f857..d4b98c2 100644
Binary files a/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_aes.bin and b/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_aes.bin differ
diff --git a/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_double.bin b/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_double.bin
index 54c62e0..90e9de7 100644
Binary files a/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_double.bin and b/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_double.bin differ
diff --git a/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_single.bin b/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_single.bin
index 6daf898..487bdf2 100644
Binary files a/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_single.bin and b/project/example/ble/ble_peripheral/mdk/output_bin/ota_data_single.bin differ
diff --git a/project/example/ble/ble_peripheral/mdk/output_tool/Double_ota/ge_ota.bat b/project/example/ble/ble_peripheral/mdk/output_tool/Double_ota/ge_ota.bat
index c9b9fbc..63637b7 100644
--- a/project/example/ble/ble_peripheral/mdk/output_tool/Double_ota/ge_ota.bat
+++ b/project/example/ble/ble_peripheral/mdk/output_tool/Double_ota/ge_ota.bat
@@ -68,5 +68,7 @@ set Ota_use_bin=.\output_bin\ota_data_double.bin
 
 copy %Download_bin%  .\
 
+call "%~dp0..\..\..\..\..\..\..\make_release_bin.bat"
+if errorlevel 1 exit /b 1
 
 
diff --git a/project_info.ini b/project_info.ini
new file mode 100644
index 0000000..8461e30
--- /dev/null
+++ b/project_info.ini
@@ -0,0 +1,7 @@
+PRODUCT=HPW422
+VERSION=V1.3
+CHIP=XC6517
+
+# Used only for checksum generation by tools/offline_burn/Xinc_mac_tool.exe.
+OFFLINE_MAC=40-ab-00-cd-01-01
+OFFLINE_COUNT=1000000
diff --git a/release/online/HPW422_V1.3_XC6517_7E2FEEA0.bin b/release/online/HPW422_V1.3_XC6517_7E2FEEA0.bin
new file mode 100644
index 0000000..14ca2d3
Binary files /dev/null and b/release/online/HPW422_V1.3_XC6517_7E2FEEA0.bin differ
diff --git a/release/ota/HPW422_V1.3_XC6517_7E2FEEA0_OTA.bin b/release/ota/HPW422_V1.3_XC6517_7E2FEEA0_OTA.bin
new file mode 100644
index 0000000..d4b98c2
Binary files /dev/null and b/release/ota/HPW422_V1.3_XC6517_7E2FEEA0_OTA.bin differ
diff --git a/tools/make_release_bin.ps1 b/tools/make_release_bin.ps1
new file mode 100644
index 0000000..8e47f85
--- /dev/null
+++ b/tools/make_release_bin.ps1
@@ -0,0 +1,148 @@
+param(
+    [string]$ConfigPath,
+    [string]$Mac,
+    [string]$Count,
+    [string]$OnlineBinPath,
+    [string]$OtaBinPath,
+    [switch]$NoOta
+)
+
+Set-StrictMode -Version 2.0
+$ErrorActionPreference = "Stop"
+
+$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$repoRoot = Split-Path -Parent $scriptDir
+
+if ([string]::IsNullOrWhiteSpace($ConfigPath)) {
+    $ConfigPath = Join-Path $repoRoot "project_info.ini"
+}
+
+function Read-ProjectInfo {
+    param([string]$Path)
+
+    if (-not (Test-Path -LiteralPath $Path)) {
+        throw "Config file not found: $Path"
+    }
+
+    $result = @{}
+    foreach ($line in Get-Content -LiteralPath $Path) {
+        $trimmed = $line.Trim()
+        if ($trimmed.Length -eq 0 -or $trimmed.StartsWith("#") -or $trimmed.StartsWith(";")) {
+            continue
+        }
+
+        $parts = $trimmed.Split("=", 2)
+        if ($parts.Count -ne 2) {
+            continue
+        }
+
+        $key = $parts[0].Trim()
+        $value = $parts[1].Trim()
+        if ($key.Length -gt 0) {
+            $result[$key] = $value
+        }
+    }
+
+    return $result
+}
+
+function Require-Value {
+    param(
+        [hashtable]$Info,
+        [string]$Key
+    )
+
+    if (-not $Info.ContainsKey($Key) -or [string]::IsNullOrWhiteSpace([string]$Info[$Key])) {
+        throw "Missing required config value: $Key"
+    }
+
+    return [string]$Info[$Key]
+}
+
+$info = Read-ProjectInfo -Path $ConfigPath
+$product = Require-Value -Info $info -Key "PRODUCT"
+$version = Require-Value -Info $info -Key "VERSION"
+$chip = Require-Value -Info $info -Key "CHIP"
+
+if ([string]::IsNullOrWhiteSpace($Mac)) {
+    if ($info.ContainsKey("OFFLINE_MAC")) {
+        $Mac = [string]$info["OFFLINE_MAC"]
+    } else {
+        $Mac = "40-ab-00-cd-01-01"
+    }
+}
+
+if ([string]::IsNullOrWhiteSpace($Count)) {
+    if ($info.ContainsKey("OFFLINE_COUNT")) {
+        $Count = [string]$info["OFFLINE_COUNT"]
+    } else {
+        $Count = "1000000"
+    }
+}
+
+if ([string]::IsNullOrWhiteSpace($OnlineBinPath)) {
+    $OnlineBinPath = Join-Path $repoRoot "project\example\ble\ble_peripheral\mdk\ble_peripheral.bin"
+}
+
+if ([string]::IsNullOrWhiteSpace($OtaBinPath)) {
+    $OtaBinPath = Join-Path $repoRoot "project\example\ble\ble_peripheral\mdk\output_bin\ota_data_aes.bin"
+}
+
+$offlineDir = Join-Path $repoRoot "tools\offline_burn"
+$offlineTool = Join-Path $offlineDir "Xinc_mac_tool.exe"
+$offlineInput = Join-Path $offlineDir "download.bin"
+$releaseDir = Join-Path $repoRoot "release"
+$onlineReleaseDir = Join-Path $releaseDir "online"
+$otaReleaseDir = Join-Path $releaseDir "ota"
+
+if (-not (Test-Path -LiteralPath $OnlineBinPath)) {
+    throw "Online BIN not found: $OnlineBinPath"
+}
+
+if (-not (Test-Path -LiteralPath $offlineTool)) {
+    throw "Offline checksum tool not found: $offlineTool"
+}
+
+Copy-Item -LiteralPath $OnlineBinPath -Destination $offlineInput -Force
+
+Push-Location $offlineDir
+try {
+    & $offlineTool $Mac $Count
+    if ($LASTEXITCODE -ne 0) {
+        throw "Xinc_mac_tool.exe failed with exit code $LASTEXITCODE"
+    }
+} finally {
+    Pop-Location
+}
+
+$namePattern = "^" + [regex]::Escape($Mac) + "_([0-9A-Fa-f]{8})_" + [regex]::Escape($Count) + "\.bin$"
+$generated = Get-ChildItem -LiteralPath $offlineDir -File -Filter "$Mac`_*.bin" |
+    Where-Object { $_.Name -match $namePattern } |
+    Sort-Object LastWriteTimeUtc -Descending |
+    Select-Object -First 1
+
+if ($null -eq $generated) {
+    throw "Checksum output was not found in $offlineDir"
+}
+
+$checksum = ([regex]::Match($generated.Name, $namePattern)).Groups[1].Value.ToUpperInvariant()
+
+New-Item -ItemType Directory -Force -Path $onlineReleaseDir | Out-Null
+$onlineName = "{0}_{1}_{2}_{3}.bin" -f $product, $version, $chip, $checksum
+$onlineReleasePath = Join-Path $onlineReleaseDir $onlineName
+Copy-Item -LiteralPath $OnlineBinPath -Destination $onlineReleasePath -Force
+
+Write-Host "Checksum source: $($generated.FullName)"
+Write-Host "Online BIN: $onlineReleasePath"
+
+if (-not $NoOta) {
+    if (Test-Path -LiteralPath $OtaBinPath) {
+        New-Item -ItemType Directory -Force -Path $otaReleaseDir | Out-Null
+        $otaName = "{0}_{1}_{2}_{3}_OTA.bin" -f $product, $version, $chip, $checksum
+        $otaReleasePath = Join-Path $otaReleaseDir $otaName
+        Copy-Item -LiteralPath $OtaBinPath -Destination $otaReleasePath -Force
+        Write-Host "OTA BIN: $otaReleasePath"
+    } else {
+        Write-Warning "OTA BIN not found, skipped: $OtaBinPath"
+    }
+}
diff --git a/tools/offline_burn/Mcu_download.bin b/tools/offline_burn/Mcu_download.bin
new file mode 100644
index 0000000..4a56475
Binary files /dev/null and b/tools/offline_burn/Mcu_download.bin differ
diff --git a/tools/offline_burn/README.md b/tools/offline_burn/README.md
new file mode 100644
index 0000000..1691e05
--- /dev/null
+++ b/tools/offline_burn/README.md
@@ -0,0 +1,14 @@
+# Offline checksum tool
+
+This folder keeps the original XC6517 offline burn helper used only to calculate
+the checksum segment for release file names.
+
+Normal release flow:
+
+1. Build the Keil project and generate `mdk\ble_peripheral.bin`.
+2. Run `tools\make_release_bin.ps1` from the repository root.
+3. The script copies `ble_peripheral.bin` to `download.bin`, runs
+   `Xinc_mac_tool.exe`, extracts the checksum from the generated offline file
+   name, then copies the real online burn file to `release\online`.
+
+Do not use the generated offline BIN as the online burn file.
diff --git a/tools/offline_burn/Readme.txt b/tools/offline_burn/Readme.txt
new file mode 100644
index 0000000..aa84fc8
--- /dev/null
+++ b/tools/offline_burn/Readme.txt
@@ -0,0 +1,2 @@
+如果要烧录与烧录器最开始同一MAC的程序，需要先烧录erase.bin
+MCU烧录Mcu_download.bin文件
diff --git a/tools/offline_burn/STM32F0308_Discovery.hex b/tools/offline_burn/STM32F0308_Discovery.hex
new file mode 100644
index 0000000..20be53a
--- /dev/null
+++ b/tools/offline_burn/STM32F0308_Discovery.hex
@@ -0,0 +1,163 @@
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diff --git a/tools/offline_burn/Xinc_mac_tool.exe b/tools/offline_burn/Xinc_mac_tool.exe
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diff --git a/tools/offline_burn/Z_ReadMe.png b/tools/offline_burn/Z_ReadMe.png
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diff --git a/tools/offline_burn/Z_Xinc_tool.bat b/tools/offline_burn/Z_Xinc_tool.bat
new file mode 100644
index 0000000..1478b84
--- /dev/null
+++ b/tools/offline_burn/Z_Xinc_tool.bat
@@ -0,0 +1,2 @@
+Xinc_mac_tool.exe 40-ab-00-cd-01-01   1000000
+REM pause
\ No newline at end of file
diff --git a/tools/offline_burn/erase.bin b/tools/offline_burn/erase.bin
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diff --git a/tools/offline_burn/offline.bin b/tools/offline_burn/offline.bin
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diff --git a/tools/offline_burn/ramboot.bin b/tools/offline_burn/ramboot.bin
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