Q1 can parser

.gitignore

@@ -0,0 +1,2 @@
+.vscode/
+build/

CMakeLists.txt

@@ -12,3 +12,5 @@ foreach(IDX RANGE 1 3 1)
 	target_link_libraries(Question-${IDX}-out pthread)
 	add_test(question-${IDX} Question-${IDX}-out)
 endforeach()
+
+configure_file(Q1/candump.log ${CMAKE_BINARY_DIR}/candump.log COPYONLY)

Q1/Question-1.cc

@@ -20,3 +20,43 @@
 // Resources:
 // https://www.csselectronics.com/pages/can-bus-simple-intro-tutorial
 // https://www.csselectronics.com/pages/can-dbc-file-database-intro
+
+int main() {
+    // Setup files
+    std::ifstream logFile("candump.log");
+    std::ofstream outFile("output.txt");
+
+    if (!logFile.is_open()) { std::cerr << "Cannot open candump.log\n"; return 1; }
+    if (!outFile.is_open()) { std::cerr << "Cannot open wheelspeed_rr.txt\n"; return 1; }
+
+    // Values from SensorBus.dbc
+    const std::string TARGET_ID = "705";
+    const double FACTOR = 0.1;
+
+    // Parse lines from candump.log
+    std::string line;
+    while (std::getline(logFile, line)) {
+        // Select ECU_WheelSpeed data only
+        const size_t hashPos = line.find('#');
+        if (line.substr(hashPos - 3, 3) != TARGET_ID) continue;
+
+        // Extract timestamp
+        std::string ts = line.substr(0, line.find(')') + 1);
+
+        // Extract wheelspeed value
+        uint64_t raw_data = std::stoull(line.substr(hashPos + 1), nullptr, 16);
+        uint8_t rr_lsb = (raw_data >> 24) & 0xFF;
+        uint8_t rr_msb = (raw_data >> 16) & 0xFF;
+        int16_t signed_value = (static_cast<int16_t>(rr_msb) << 8) | rr_lsb;
+        double wheelSpeedRR = signed_value * FACTOR;
+
+        // Store values
+        outFile << ts << ": " << wheelSpeedRR << "\n";
+    }
+
+    // Close files
+    logFile.close();
+    outFile.close();
+    std::cout << "Values written to output.txt\n";
+    return 0;
+}