重新构建的批检仪主板程序

interface/codec_ym.cpp

@@ -1,18 +1,10 @@
 
 #include "codec.h"
+#include "base/crc.h"
+#include "interface/codec_ym.h"
 
-class CodecYm : public Codec
-{
-  Q_OBJECT
-public:
-  CodecYm() : Codec()
-  {
-    is_big_data = false;
-    num_to_read = 0;
-  }
-  ~CodecYm() {}
   // 重载接收字节函数
-  bool recvByte(int byte)
+  bool CodecYm::recvByte(int byte)
   {
     bool ack = false;
     if (fullFrame == true)
@@ -74,26 +66,38 @@ public:
     return fullFrame;
   }
   // 重载解码函数
-  QByteArray decode(int &srcAddr, int &dstAddr, int &cmd, QByteArray data)
+  myarray CodecYm::decode(int &srcAddr, int &dstAddr, int &cmd, myarray data)
   {
     Q_UNUSED(srcAddr);
     Q_UNUSED(dstAddr);
-    QByteArray r;
+    myarray r;
+    if(packCheck(data)==true){
+        cmd=this->cmd;
+        if (is_big_data == false)
+          r = data.mid(7, len - 3);
+        else
+          r = data.mid(11, len - 7);
+    }
+    return r;
+  }
+  bool CodecYm::packCheck(myarray data)
+  {
+    bool ack=false;
     if (data.size() < 9)
     {
       // 主机一帧数据至少9字节
       qWarning("recv data len too less");
-      return r;
+      return ack;
     }
 
     if ((uint8_t(data[0]) != 0x59u) || (uint8_t(data[1]) != 0x6du))
     {
       // 帧头不对
       qWarning("frame head not 0x59 0x6d");
-      return r;
+      return ack;
     }
 
-    int len = (data[2] | (data[3] << 8));
+    len = (data[2] | (data[3] << 8));
     if (len == 65535)
     {
       // 重新设置数据长度
@@ -108,10 +112,10 @@ public:
     {
       // 如果长度不相等则产生了数据丢失
       qWarning("recv data have lossed");
-      return r;
+      return ack;
     }
     uint8_t chk_a = 0, chk_b = 0;
-    // crc::crc16((uint8_t *)data.data(),2,len+4,&chk_a,&chk_b);
+    crc::crc16((uint8_t *)data.data(),2,len+4,&chk_a,&chk_b);
     if (chk_a != uint8_t(data[data.size() - 2]) || chk_b != uint8_t(data[data.size() - 1]))
     {
       // crc校验不对
@@ -122,15 +126,58 @@ public:
     cmd_no = data[5] | (data[6] << 8);
     cmd = data[4];
     // 数据负载
-    if (is_big_data == false)
-      r = data.mid(7, len - 3);
-    else
-      r = data.mid(11, len - 7);
-    return r;
+    return true;
+  }
+  myarray CodecYm::encode(int srcAddr, int dstAddr, int cmd, myarray data)
+  {
+      Q_UNUSED(srcAddr);
+      Q_UNUSED(dstAddr);
+      myarray t;
+      uint32_t len=data.size()+3;
+
+      t.append(0x59u);
+      t.append(0x6du);
+      t.append(0x43u);
+      if(len<65535)
+      {
+          t.append((len)&0xff);
+          t.append((len)>>8);
+          t.append(cmd);
+          t.append(cmd_no&0xff);
+          t.append(cmd_no>>8);
+      }else{
+          len+=4;
+          t.append(0xff);
+          t.append(0xff);
+          t.append(cmd);
+          t.append(cmd_no&0xff);
+          t.append(cmd_no>>8);
+          t.append(len&0xff);
+          t.append((len>>8)&0xff);
+          t.append((len>>16)&0xff);
+          t.append((len>>24)&0xff);
+      }
+      t.append(data);
+      uint8_t chk_a,chk_b;
+      crc::crc16((uint8_t *)t.data(),3,len+5,&chk_a,&chk_b);
+      t.append(chk_a);
+      t.append(chk_b);
+      return t;
   }
 
-private:
-  bool is_big_data;
-  int num_to_read;
-  int cmd_no;
-};
+
+
+
+Codec *codec_ym_get()
+{
+    static Codec *codec_=nullptr;
+    if(codec_==nullptr){
+        codec_=new CodecYm();
+    }
+    return codec_;
+}
+
+
+codec_export(codec_ym,codec_ym_get);
+
+