nissan BCM

firmware/controllers/lua/examples/nissan-350z-bcm.txt

@@ -38,8 +38,14 @@ function arrayToString(arr)
 	return str
 end
 
+function getTwoBytesLSB(data, offset, factor)
+	return (data[offset + 2] * 256 + data[offset + 1]) * factor
+end
+
 function onRpmData(bus, id, dlc, data)
 --    print('onRpmData ' ..arrayToString(data))
+    rpm = getTwoBytesLSB(data, 3, 3.15)
+    print ('RPM ' .. rpm)
 end
 
 function onSpeedData(bus, id, dlc, data)

unit_tests/tests/lua/test_lua_nissan.cpp

@@ -13,3 +13,15 @@ TEST(LuaNissan, wheelSpeed) {
 
         EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(script).value_or(0), 32.54);
 }
+
+TEST(LuaNissan, rpm) {
+#define realRpmPacket "\ndata = { 0x63, 0x00, 0x00, 0x1B, 0x01, 0xCC, 0x00, 0x70}\n "
+	const char* script = 	TWO_BYTES_LSB	realRpmPacket	R"(
+    	function testFunc()
+    		engineTorque = getTwoBytesLSB(data, 3, 3.15)
+    		return engineTorque
+    	end
+    	)";
+
+        EXPECT_NEAR_M3(testLuaReturnsNumberOrNil(script).value_or(0), 891.45);
+}