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The xplane_io (X-Plane I/O) program is used to establish network communications, via UDP, with the X-Plane flight simulator running on a computer. The code consists of class libraries that abstract the lower-level UDP packet encoding and decoding details, according to the UDP protocol specifications in X-Plane version 9. Any X-Plane DATA packets can be sent and received, and any X-Plane DataRefs can be set by sending DREF packets to X-Plane.
Dependencies: EthernetNetIf mbed ConfigFile
Diff: main.cpp
- Revision:
- 0:a5d13af495af
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Dec 21 22:29:59 2011 +0000 @@ -0,0 +1,74 @@ +#include "mbed.h" +#include "EthernetNetIf.h" +#include "Ranger.h" +#include "XPlaneIO.h" + +Serial pc(USBTX, USBRX); + +int main() { + + pc.baud(57600); + + Ethernet ethernet; + + XPlaneIO xpio; + if (! xpio.setup("XPlaneIO.cfg", ðernet)) { + printf("Config/setup failed \n"); + return -1; + } + + // Check if user wants to perform interactive XPlaneIO diagnostics. + xpio.diagnostics(pc); + + AnalogOut throttleActual(p18); + xpio.addDATAToReceive(26); // "throttle actual" in msg 26, data[0] + + AnalogIn hatSwitch(p16); + XPlaneUdpDREF pilotHeadHeading("sim/graphics/view/pilots_head_psi", xpio.reverseByteOrder()); + Ranger<float> hatSwitchInputRanger(4, 0.59, 0.68, 0.78, 0.92); + float hatSwitchDegreesByRange[5] = {0, -90, 180, 90, 0}; + + Timer timerThrottle; + timerThrottle.start(); + + Timer timerHatSwitch; + timerHatSwitch.start(); + + Timer timerDebugPrint; + if (xpio.debug()) { + timerDebugPrint.start(); + } + + xpio.startSendingUdp(); + + while (1) { + Net::poll(); + + if (timerThrottle.read_ms() > 500) { + timerThrottle.reset(); + + throttleActual.write(xpio.getReceiveDATAValue(26, 0)); // throttle actual + } + + if (timerHatSwitch.read_ms() > 250) { + timerHatSwitch.reset(); + + int newRange = hatSwitchInputRanger.range(hatSwitch.read()); + if (hatSwitchInputRanger.rangeChanged()) { + pilotHeadHeading.drefFloat(hatSwitchDegreesByRange[newRange]); + xpio.sendDREF(pilotHeadHeading); + } + } + + if (xpio.debug()) { + if (timerDebugPrint.read() > 2) { + timerDebugPrint.reset(); + + printf("Receive "); + printXPlaneUdpDATAMap(stdout, xpio.recvDATAMap()); + printf("Send "); + printXPlaneUdpDATAMap(stdout, xpio.sendDATAMap()); + } + } + } +}