diff --git a/.vscode/settings.json b/.vscode/settings.json
index 0938b59..654244f 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -21,6 +21,12 @@
     "stddef.h": "c",
     "coroutine": "c",
     "filo.h": "c",
-    "filo_type.h": "c"
+    "filo_type.h": "c",
+    "array": "c",
+    "string": "c",
+    "string_view": "c",
+    "ranges": "c",
+    "compare": "c",
+    "cstdint": "c"
   }
 }
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index f163673..e66d1c6 100644
--- a/src/main.c
+++ b/src/main.c
@@ -45,7 +45,7 @@ int main(void) {
       break;
 
       case OS_wait:
-        TOOL_msleep(50);
+        TOOL_msleep(5);
         printf("\n\n");
       break;
 
@@ -60,7 +60,7 @@ int main(void) {
     bigLoopOsState++;
 
     // Для контроля
-    TOOL_msleep(100);
+    TOOL_msleep(10);
   }
 
   return 0;
diff --git a/src/tools.c b/src/tools.c
index e3d8d17..6b83f82 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -32,7 +32,7 @@ uint16_t CRC16_compute(uint8_t *data, size_t length) {
       }
     }
   }
-
+  
   return crc;
 }
 
diff --git a/src/worker/worker.c b/src/worker/worker.c
index 051948b..69ceab3 100644
--- a/src/worker/worker.c
+++ b/src/worker/worker.c
@@ -85,6 +85,7 @@ int WORK_sendPackage(workerHost_s *worker)  {
       FIFO_put(worker->fifoWrite, worker->byteBuffer[worker->byteBufferHead]); 
       if (worker->byteBufferHead < worker->byteBufferLength) {
         worker->byteBufferHead++;
+        return 1;
       } else if (worker->byteBufferHead == worker->byteBufferLength) {
         // Передан весь буфер через фифо
         WORK_formattedPrintArray("sent bytes:", 
@@ -92,12 +93,12 @@ int WORK_sendPackage(workerHost_s *worker)  {
         return 0;
       } else {
         worker->byteBufferHead = 0;
-        return -2;
+        return -3;
       }      
     } else {
-      return 1;
+      return -2;
     }
-    return -1;
+    return 2;
   }
   return -1;
 }
@@ -122,6 +123,7 @@ int WORK_receivePackage(workerHost_s *worker) {
       FIFO_get(worker->fifoRead, &worker->byteBuffer[worker->byteBufferHead]); 
       if (worker->byteBufferHead < WORK_BYTE_BUFFER_SIZE) {
         worker->byteBufferHead++;
+        return 1;
       } else {
         worker->byteBufferHead = 0;
         return -2;
@@ -134,104 +136,119 @@ int WORK_receivePackage(workerHost_s *worker) {
           worker->byteBuffer, worker->byteBufferLength);
         return 0;
       }
-      return 1;
+      return 2;
     }
   }
   return -1;
 }
 
 
+int WORK_doGroupPackageBytes(hdlcPacket_s *packet, uint8_t *first, uint8_t *last, size_t bufLen) {
+  if (last > first) {
+    bufLen = last - first;
+    // Так как может быть меньше в теории
+    if (bufLen <= HDLC_PACKET_LENGTH - 2) {
+      // Считываем адрес
+      if (bufLen > 2) {  
+        packet->address = ((uint16_t)*(first+1) << 8) | *(first);
+        first += 2;
+      }
+
+      // Считываем управляющее поле
+      if (bufLen > 4) { 
+        packet->control = ((uint16_t)*(first+1) << 8) | *(first);
+        first += 2;
+      }
+
+      // Считываем контрольную сумму
+      if (bufLen > 6) { 
+        printf("CRCRCR:%d,%d\n", *last, *(last-1));
+        packet->fcs = ((uint16_t)*(last) << 8) | *(last-1);
+        last -= 2;
+      }
+
+      // Считываем информационный пакет
+      if ((bufLen > 8) && (last > first)) { 
+        int j = 0;
+        // От переполнения
+        size_t infoLen = last - first + 1;
+        if (infoLen > HDLC_INFO_LENGTH) {
+          return -1;
+        }
+        // Заполнение данными
+        for (uint8_t* i = first; i <= last; i++) {
+          packet->info[j] = *i;
+          j++;
+        }
+        // Чистка хвоста
+        for (; j < HDLC_INFO_LENGTH; j++) {
+          packet->info[j] = 0;
+        }
+      }
+      
+      return 0;
+
+    } // bufLen <= HDLC_PACKET_LENGTH - 2
+  } // (last > first)
+  return -1;
+}
+
+
 int WORK_parsePackage(workerHost_s *worker) {
   printf("WORKX: .. Parsing package\n");
 
   // Поиск пакета в массиве 
   uint8_t *first = NULL, *last = NULL;
-  size_t bufPtrI = 0, bufLen = 0;
   uint8_t tmpArr[WORK_BYTE_BUFFER_SIZE] = {0};
+  size_t bufPtrI = 0, tmpArrI = 0, bufLen = 0;
   // Выносим из принятого массива только нагрузку в буфер
   for (bufPtrI = 0; bufPtrI < WORK_BYTE_BUFFER_SIZE; bufPtrI++) {
+    // Заполняем временный буфер если нашли начало
+    if (first) {
+      tmpArr[tmpArrI] = worker->byteBuffer[bufPtrI];
+      tmpArrI++;
+    }
+
+    // Найден escape-флаг и следующие значение - флаг
+    if (worker->byteBuffer[bufPtrI] == HDLC_PACKET_ESCAPE) {
+      if (worker->byteBuffer[bufPtrI+1] == HDLC_PACKET_FLAG) {
+        tmpArr[tmpArrI-1] = HDLC_PACKET_FLAG;
+        bufPtrI++;
+      }
+    } else 
     // Найден флаг
     if (worker->byteBuffer[bufPtrI] == HDLC_PACKET_FLAG) {
       if (!first) {
-        first = &worker->byteBuffer[bufPtrI];
-        first++; // Скипаем байт флага
+        first = &tmpArr[0];
       } else if (!last) {
-        last = &worker->byteBuffer[bufPtrI];
-        last--;
+        tmpArrI--;
+        last = &tmpArr[tmpArrI-1];
         break;
       }
     }
 
-    // Найден escape-флаг
-    if (worker->byteBuffer[bufPtrI] == HDLC_PACKET_ESCAPE) {
-      if (worker->byteBuffer[bufPtrI+1] == HDLC_PACKET_FLAG) {
-        bufPtrI++;
-      }
-    }    
   }
   
-  WORK_formattedPrintArray("received bytes:", first, bufPtrI);
+  WORK_formattedPrintArray("received bytes:", first, tmpArrI);
 
-  // Разбор пакета в структуру
+  // Разбор пакета в структуру, если найдены флаги
   if (first && last) {
-    if (last > first) {
-      bufLen = last - first;
-      // Так как может быть меньше в теории
-      if (bufLen <= HDLC_PACKET_LENGTH-2) {
-        if (bufLen > 2) {  // Считываем адрес
-          uint16_t a = ((uint16_t)*first << 8) | *(first+1);
-          worker->packet->address = ((uint16_t)*(first+1) << 8) | *(first);
-          first += 2;
-        }
-        if (bufLen > 4) { // Считываем управляющее поле
-          worker->packet->control = ((uint16_t)*(first+1) << 8) | *(first);
-          first += 2;
-        }
-        if (bufLen > 6) { // Считываем контрольную сумму
-          worker->packet->fcs = ((uint16_t)*(last) << 8) | *(last-1);
-          last -= 2;
-        }
-        if ((bufLen > 8) && (last > first)) { // Считываем информационный пакет
-          int j = 0;
-          // От переполнения
-          size_t infoLen = last - first;
-          if (infoLen > HDLC_INFO_LENGTH) {
-            return -1;
-          }
-
-          // Заполнение данными
-          for (uint8_t* i = first; i < last; i++) {
-            worker->packet->info[j] = *i;
-            j++;
-          }
-
-          // Чистка хвоста
-          for (; j < HDLC_INFO_LENGTH; j++) {
-            worker->packet->info[j] = 0;
-          }
-        }
-      }
-    } // (last > first)
-  } // (first && last)
-  else {
-    // неправильный пакет
-    return -1;
-  }
-
-  WORK_formattedPrintArray("parsed bytes:", worker->byteBuffer, bufPtrI);
-
-
-  // Проверка контрольной суммы разобранного пакета
-  uint16_t crc = worker->packet->fcs;
-  worker->packet->fcs = 0;
-  if (CRC16_compute((uint8_t*) &worker->packet, sizeof(workerHost_s)) == crc) {
-    printf("WORKX: .. CRC OK");
-    return 0;
+    bufLen = last - first + 1;
+    int ret = WORK_doGroupPackageBytes(worker->packet, first, last, bufLen);
+    if (ret == 0) {
+      // memset(worker->byteBuffer, 0, WORK_BYTE_BUFFER_SIZE);
+      // memcpy(worker->byteBuffer, tmpArr, tmpArrI);
+      
+      // WORK_formattedPrintArray("parsed bytes:", worker->byteBuffer, bufLen);
+      WORK_formattedPrintArray("parsed bytes:", tmpArr, bufLen);
+      WORK_printBlocks(worker, 3);
+    } 
+    return ret;
   } else {
-    printf("WORKX: .. WRONG CRC");
+    // неправильный пакет
+    printf("WORKX: .. WRONG PACKET\n");
     return -1;
   }
-
   return -1;
 }
 
@@ -239,7 +256,6 @@ int WORK_parsePackage(workerHost_s *worker) {
 int WORK_checkPackage(workerHost_s *worker) {
   printf("WORKX: .. Checking package\n");
   int res = 0;
-  return 0;
   res = HDLC_isControlFieldValid(worker->packet->control);
   // Проверка поля управления
   if (res != 0) {
@@ -247,10 +263,20 @@ int WORK_checkPackage(workerHost_s *worker) {
   }
   printf("WORKX: .. Package is info ...\n");
 
-  // Проверка контрольной суммы
+  // Проверка контрольной суммы разобранного пакета
+  uint16_t crc = worker->packet->fcs;
+  worker->packet->fcs = 0;
+  uint16_t crcc = CRC16_compute((uint8_t*) worker->packet, sizeof(hdlcPacket_s));
+  if (crcc == crc) {
+    printf("WORKX: .. CRC OK\n");
+    printf("WORKX: .. Package checked\n");
+    return 0;
+  } else {
+    printf("WORKX: .. WRONG CRC\n");
+    return -1;
+  }
 
-  printf("WORKX: .. Package checked\n");
-  return 0;
+  return -1;
 }
 
 
@@ -264,8 +290,10 @@ int WORK_execute(int (*callback)(workerHost_s*), workerHost_s *worker) {
 
   int res = callback(worker);
 
-  if (res != 0) {
-    printf("WORKX: .. Error\n");
+  if (res > 0) {
+    printf("WORKX: .. Progerss (%d)\n", res);
+  } else if (res < 0) {
+    printf("WORKX: .. Error (%d)\n", res);  
   }
   
   return res;
diff --git a/src/worker/worker.h b/src/worker/worker.h
index f9d40ba..12725a7 100644
--- a/src/worker/worker.h
+++ b/src/worker/worker.h
@@ -13,7 +13,7 @@
 #include "fifo.h"
 
 // Структура устройства
-typedef struct {
+typedef struct __attribute__((packed)){
   hdlcPacket_s *packet;
   fifo_s *fifoRead;
   fifo_s *fifoWrite;
diff --git a/src/worker/worker_master.c b/src/worker/worker_master.c
index 6975158..48923a1 100644
--- a/src/worker/worker_master.c
+++ b/src/worker/worker_master.c
@@ -50,7 +50,7 @@ int WORK_master (void) {
       hdlcMaster.packet->control = 0b0100110011110000;
       WORK_fillBuffer8b(hdlcMaster.packet->info, HDLC_INFO_LENGTH);
       hdlcMaster.packet->fcs = 0;
-      uint16_t crc = CRC16_compute((uint8_t*) hdlcMaster.packet, sizeof(workerHost_s));
+      uint16_t crc = CRC16_compute((uint8_t*) hdlcMaster.packet, sizeof(hdlcPacket_s));
       hdlcMaster.packet->fcs = crc;
       hdlcMaster.byteBufferHead = 0;
       
@@ -64,6 +64,7 @@ int WORK_master (void) {
     case WSMASTER_sendingPackage:
       res = WORK_execute(WORK_sendPackage, &hdlcMaster);   
       if (res == 0) {
+        hdlcMaster.byteBufferHead = 0;
         masterState = WSMASTER_waitingPackage;
       }      
     break;
@@ -107,9 +108,10 @@ int WORK_master (void) {
     case WSMASTER_last:
       printf("WMAST: Job done. Starting from the beginning\n");
       masterState = WSMASTER_preparingPackage;
+      return 0;
     break;
   }  
 
-  return 0;
+  return res;
 }
 
diff --git a/src/worker/worker_slave.c b/src/worker/worker_slave.c
index 0c3aef6..1cb7092 100644
--- a/src/worker/worker_slave.c
+++ b/src/worker/worker_slave.c
@@ -46,25 +46,31 @@ int WORK_slave(void) {
       res = WORK_execute(WORK_receivePackage, &hdlcSlave);   
     break;
   
-    case WSSLAVE_checkingPackage:
-      res = WORK_execute(WORK_checkPackage, &hdlcSlave);   
-    break;
-  
     case WSSLAVE_parsingPackage:
       res = WORK_execute(WORK_parsePackage, &hdlcSlave);  
     break;
+  
+    case WSSLAVE_checkingPackage:
+      res = WORK_execute(WORK_checkPackage, &hdlcSlave);   
+    break;
 
     case WSSLAVE_preparingPackage:
       hdlcSlave.packet->address = hdlcSlaveAddress;
       uint8_t tmp = hdlcSlave.packet->info[0];
       hdlcSlave.packet->info[0] = hdlcSlave.packet->info[1];
       hdlcSlave.packet->info[1] = tmp;
+      hdlcSlave.packet->fcs = 0;
+      uint16_t crc = CRC16_compute((uint8_t*) hdlcSlave.packet, sizeof(hdlcPacket_s));
+      hdlcSlave.packet->fcs = crc;
+      hdlcSlave.byteBufferHead = 0;
+      
       res = WORK_execute(WORK_preparePackage, &hdlcSlave);   
     break;
   
     case WSSLAVE_sendingPackage:
       res = WORK_execute(WORK_sendPackage, &hdlcSlave);   
       if (res == 0) {
+        hdlcSlave.byteBufferHead = 0;
         slaveState = WSSLAVE_last;
         __attribute__((fallthrough));
       } else {
@@ -74,6 +80,7 @@ int WORK_slave(void) {
     case WSSLAVE_last:
       printf("WSLAV: Job done. Starting from the beginning\n");
       slaveState = WSSLAVE_waitClient;
+      return 0;
     break;
 
   } // switch (slaveState)
@@ -81,6 +88,5 @@ int WORK_slave(void) {
   if (res == 0) {
     slaveState++;
   }
-
-  return 0;
+  return res;
 }
\ No newline at end of file
diff --git a/src/worker/worker_tools.c b/src/worker/worker_tools.c
index bebd24d..07198b9 100644
--- a/src/worker/worker_tools.c
+++ b/src/worker/worker_tools.c
@@ -109,5 +109,10 @@ int WORK_fillBuffer8b(uint8_t *buffer, size_t size) {
     buffer[i] = i;
   }
   buffer[size/2] = HDLC_PACKET_FLAG;
+  buffer[size/3] = HDLC_PACKET_FLAG;
+  buffer[size/4] = HDLC_PACKET_FLAG;
+  buffer[size/5] = HDLC_PACKET_FLAG;
+  buffer[10] = HDLC_PACKET_FLAG;
+  buffer[12] = HDLC_PACKET_FLAG;
   return 0;
 }
\ No newline at end of file
diff --git a/src/worker/worker_type.h b/src/worker/worker_type.h
index cf2f964..40c6ef3 100644
--- a/src/worker/worker_type.h
+++ b/src/worker/worker_type.h
@@ -31,8 +31,8 @@ typedef enum {
   WSSLAVE_waitClient,
   WSSLAVE_waitingPackage,
   WSSLAVE_receivingPackage,
-  WSSLAVE_checkingPackage,
   WSSLAVE_parsingPackage,
+  WSSLAVE_checkingPackage,
   WSSLAVE_preparingPackage,
   WSSLAVE_sendingPackage,
   WSSLAVE_last