fixing board_descr

Signed-off-by: Andrey Parfenov <a1994ndrey@gmail.com>

src/board_controller/brainflow_boards.cpp

@@ -71,7 +71,10 @@ BrainFlowBoards::BrainFlowBoards()
             {"50", json::object()},
             {"51", json::object()},
             {"52", json::object()},
-            {"53", json::object()}
+            {"53", json::object()},
+            {"54", json::object()},
+            {"55", json::object()},
+            {"56", json::object()}
         }
     }};
 
@@ -1082,6 +1085,16 @@ BrainFlowBoards::BrainFlowBoards()
         {"battery_channel", 2},
         {"other_channels", {3}}
     };
+    brainflow_boards_json["boards"]["56"]["default"] = {
+        {"name", "PIEEG"},
+        {"sampling_rate", 250},
+        {"package_num_channel", 0},
+        {"timestamp_channel", 9},
+        {"marker_channel", 10},
+        {"num_rows", 11},
+        {"eeg_channels", {1, 2, 3, 4, 5, 6, 7, 8}},  
+        {"eeg_names", "Fp1,Fp2,C3,C4,P7,P8,O1,O2"}
+    };
 }
 
 BrainFlowBoards boards_struct;

src/board_controller/pieeg/pieeg_board.cpp

@@ -218,7 +218,7 @@ void PIEEGBoard::read_thread ()
 
     double eeg_scale = 4.5 / float ((pow (2, 23) - 1)) / 8 * 1000000.;
     double timestamp = 0;
-    int counter = 0;
+    unsigned int counter = 0;
     int timeout_ms = 1000;
     uint32_t data_test = 0x7FFFFF;
     uint32_t data_check = 0xFFFFFF;
@@ -269,7 +269,7 @@ void PIEEGBoard::read_thread ()
                 package[eeg_channels[i]] = 0.27 * voltage;
             }
             package[board_descr["default"]["timestamp_channel"].get<int> ()] = timestamp;
-            package[board_descr["default"]["package_num_channel"].get<int> ()] = counter++;
+            package[board_descr["default"]["package_num_channel"].get<int> ()] = (double)counter++;
             push_package (package);
         }
     }