diff --git a/entry/src/main/ets/common/service/usbService.ts b/entry/src/main/ets/common/service/usbService.ts
index 10a2f615..2d44dc05 100644
--- a/entry/src/main/ets/common/service/usbService.ts
+++ b/entry/src/main/ets/common/service/usbService.ts
@@ -1,15 +1,9 @@
 // 导入USB接口api包。
 import usb from '@ohos.usbManager';
+const LOGTAG = 'USBSERVICES'
 
-function stringToUint8Array(str){
-  var arr = [];
-  for (var i = 0, j = str.length; i < j; ++i) {
-    arr.push(str.charCodeAt(i));
-  }
-  var tmpUint8Array = new Uint8Array(arr);
-  return tmpUint8Array
-}
 
+//字符串转字节
 function stringToArr(str){
   var arr = [];
   for (var i = 0, j = str.length; i < j; ++i) {
@@ -18,61 +12,81 @@ function stringToArr(str){
   return arr
 }
 
+//plc数据转成无锡科研所usb字节数据
+function plcStrToWXCodeArr(wuXiDataStr){
+  const arr = stringToArr(wuXiDataStr);
+  //数据包总长度 有效长度
+  let packetSize = 65,maxDataSize = 63;
+  let packetArr = []
+  const loop =  Math.ceil(arr.length / maxDataSize)
+  for(let i = 0; i< loop; i++){
+    const thisPacket = arr.slice(i * maxDataSize,(i + 1) * maxDataSize)
+    const oSize = maxDataSize - thisPacket.length;
+    //补齐0x00
+    if(oSize > 0){
+      let oSizeArr = []
+      for(let j  = 0;j < oSize;j++){oSizeArr.push(0)}
+      // packetArr.push([0,thisPacket.length].concat(thisPacket).concat(oSizeArr));
+    }else{
+      packetArr.push([thisPacket.length].concat(thisPacket));
+    }
+  }
+  return packetArr
+}
+
 const initUsbServicesFn = () => {
   // 获取设备列表。
   let deviceList : Array<usb.USBDevice> = usb.getDevices();
 
   deviceList.forEach(async (device:usb.USBDevice) => {
     const {vendorId,productId} = device;
-    console.log('surenjun',JSON.stringify(device));
+    console.log(LOGTAG,JSON.stringify(device));
 
     //无锡所检测设备接入
     if(vendorId === 6790 && productId === 58409){
     // if(vendorId === 2385 && productId === 5734){
       // 申请操作指定的device的操作权限。
       try {
-
+        let bool = usb.hasRight(device.name);
+        console.info(LOGTAG,'bool =>' + bool)
         const isExit = await usb.requestRight(device.name);
-        console.info('surenjun',isExit)
+        console.info(LOGTAG,'isExit =>' + isExit)
         if(isExit){
           let devicepipe : usb.USBDevicePipe = usb.connectDevice(device);
           let interfaces = device.configs[0].interfaces[0];
           let ret = usb.claimInterface(devicepipe, interfaces,true);
-          console.info('surenjun',ret);
+          console.info(LOGTAG,'ret =>' + ret);
+
           if(ret === 0 ){
-            let outEndpoint : usb.USBEndpoint = interfaces.endpoints[0];
-            const outputData = new Uint8Array(65); // 要发送的数据包
-            setInterval(()=>{
+            let outEndpoint : usb.USBEndpoint = interfaces.endpoints[1];
+            let inEndpoint : usb.USBEndpoint = interfaces.endpoints[0];
+            setInterval(async ()=>{
               const wuXiDataStr = '$KSXT,20240320134841021,118.27269490,32.20290610,46.5220,190.31,0.13,0,5,0.00,3,3,25,20,0,0,0,0,0,0,E046,0081,1308,0xFFFFFFFF*';
-              // const wuXiDataStr = '$KSXT,19700101091317.10,117.13159937,31.80907367,24.973,269.4,0.91,,11.232,,4,,,,,,,,,,0005,0001,816,0xFFFFFFF'
-              const arr = stringToArr(wuXiDataStr);
-              const firstArr = [0x00,63].concat(arr.slice(0,63));
-              const secondArr = [0x00,62].concat(arr.slice(64,127)).concat([0x00]);
-              // $KSXT,19700101091317.10,117.13159937,31.80907367,24.973,269.4,0.91,,11.232,,4,,,,,,,,,,00017,0010,816,0xFFFFFFF
-              // $KSXT,20190719020615.80,117.12960038,31.80900947,23.8370,89.50,1.96,89.90,33.623,0.00,3,3,33,32,-1192.153,-2413.781,-30.162,,,,1.10,1.0,*BB
-              if(wuXiDataStr){
-                // 发送数据，在device信息中选取对应数据发送的endpoint来做数据传输。（endpoint.direction == 0）
-                console.info('surenjun',firstArr.join(','))
-                let buffer =  new Uint8Array(128);
-                usb.bulkTransfer(devicepipe, outEndpoint, buffer).then((dataLength : number) => {
-                  if (dataLength >= 0) {
-                    console.info("surenjun usb writeData result write length : " + dataLength);
-                  } else {
-                    console.info("surenjun writeData failed");
+              const codeArr = plcStrToWXCodeArr(wuXiDataStr);
+              // console.info(LOGTAG,firstArr)
+              // console.info(LOGTAG,secondArr)
+
+              for(let i = 0; i < codeArr.length;i++){
+                  try {
+                    console.info(LOGTAG,codeArr[i])
+                    const f = await usb.bulkTransfer(devicepipe, outEndpoint, new Uint8Array(codeArr[i]))
+                    console.info(LOGTAG,f)
+                  } catch (e) {
+                    console.info(LOGTAG,JSON.stringify(e))
                   }
-                }).catch((error) => {
-                  console.info(" surenjunusb writeData error : " + JSON.stringify(error));
-                });
               }
-            },200)
+            },2000)
+            
           }else{
-            console.info('surenjun','usb claimInterface failed')
+            console.info(LOGTAG,'usb claimInterface failed')
           }
 
-        };
+        }else{
+          console.info(LOGTAG,'isExit =>' +'false')
+        }
 
       } catch (e) {
-
+        console.info(LOGTAG,'e=>' + JSON.stringify(e))
       }
 
     }
@@ -80,4 +94,5 @@ const initUsbServicesFn = () => {
 
 }
 
+
 export default initUsbServicesFn