MATLAB EMBEDDED IDE LINK 4 - FOR USE WITH ECLIPSE Manuale Utente

Usable Simulink Embedded Coder Target for LinuxMichal Sojka, Pavel PíšaCzech Technical University in PragueFaculty of Electrical EngineeringDepartment

Code generation in SimulinkIExample:Sine WaveProduct3ConstantPi n 1ErrFlagAnalog InputPi n 1 ErrFlagAnalog Outputdouble in1, out1;in1 = adc_read(1);ou

Can Simulink generate code that runs on Linux?Yes, but. . .M. Sojka, P. Píša Usable Simulink Embedded Coder Target for Linux RTLWS16 6 / 22

Can Simulink generate code that runs on Linux?Yes, but. . .M. Sojka, P. Píša Usable Simulink Embedded Coder Target for Linux RTLWS16 6 / 22

Problems of Simulink code generation targets for LinuxIVery good support for popular embedded boards(Raspberry Pi, BeagleBone, . . . )ICan only be ins

Problems of Simulink code generation targets for LinuxIVery good support for popular embedded boards(Raspberry Pi, BeagleBone, . . . )ICan only be ins

Problems of Simulink code generation targets for LinuxIVery good support for popular embedded boards(Raspberry Pi, BeagleBone, . . . )ICan only be ins

Problems of Simulink code generation targets for LinuxIVery good support for popular embedded boards(Raspberry Pi, BeagleBone, . . . )ICan only be ins

Problems of Simulink code generation targets for LinuxIVery good support for popular embedded boards(Raspberry Pi, BeagleBone, . . . )ICan only be ins

POSIX timers under preempt_rt LinuxIPOSIX timers use signals to notify user space about theirexpirationISignal delivery path uses sleeping locks under

Is there better code generationtarget?YesERT_LINUXM. Sojka, P. Píša Usable Simulink Embedded Coder Target for Linux RTLWS16 9 / 22

MotivationINot everybody is a programmerIControl engineers can designcontrol algorithms but cannotprogram them in CIThey use tools like Simulink to si

ERT_LINUX code generation targetIGoal: Minimalist target which reuses as much Simulink codeas possible (not that easy)INo Eclipse needed,IUses clock_n

ERT_LINUX I/O supportIMF624: PCI data acquisition cardIDigital IO, Analog IO, PWM outICounters (can be used for PWM input!)IIncremental encoder inputI

ERT_LINUX I/O supportIMF624: PCI data acquisition cardIDigital IO, Analog IO, PWM outICounters (can be used for PWM input!)IIncremental encoder inputI

ERT_LINUX I/O supportIMF624: PCI data acquisition cardIDigital IO, Analog IO, PWM outICounters (can be used for PWM input!)IIncremental encoder inputI

Applications/demosM. Sojka, P. Píša Usable Simulink Embedded Coder Target for Linux RTLWS16 12 / 22

PMSM motor simulationHardware-in-the-loop (HIL) simulationInfineon TriBoard running a motor control algorithmPCMotor & fault simulationMF624 I/O c

Robot with parallel kinematic structureI4 DC motors, 4 incremental encoders, other I/OsIPresented at Embedded world 2014ISampling period 1 ms but comp

Motor control on Raspberry PiIFinal task for students of our real-time course:ICreate software motor controller on an embedded PowerPCboard with VxWor

M. Sojka, P. Píša Usable Simulink Embedded Coder Target for Linux RTLWS16 16 / 22

HardwarePWMGPIOsRaspberry Pi – P1CHBCHAIRCHI DRVLO DRVINHI DRVLO DRVINDCMOTORMotor Power SupplyDIRIAs simple as possibleIFour NOR gates (SN74HCT02)IH-

MotivationINot everybody is a programmerIControl engineers can designcontrol algorithms but cannotprogram them in CIThey use tools like Simulink to si

Incremental encoder (IRC) processingIThe most demanding partIIRC signal: 0 – 20 kHzIEvery edge generates an interrupt (up to 80 k interrupts/sec)IKern

Incremental encoder (IRC) processingIThe most demanding partIIRC signal: 0 – 20 kHzIEvery edge generates an interrupt (up to 80 k interrupts/sec)IKern

IRC processing detailsGPIOsRaspberry PiCHBCHAIRCHard IRQIRQ threadedhandlerIPosition calculation works better if derived from the order ofIRQs than fr

Demo: Raspberry Pi motor controllersfIRCInputIRC0int320IRC-displayConvertIRC int32 to RealdoubleIRC-scope-0.01ManualPWMdoublesfPWMwDirOutputPWMwDirMan

Demo: Raspberry Pi & CANM. Sojka, P. Píša Usable Simulink Embedded Coder Target for Linux RTLWS16 21 / 22

ConclusionIERT_LINUX target worksIUsed in several applicationsIDoes not suffer from serious problems as original MathWorkscode generation targets.ILimi

ConclusionIERT_LINUX target worksIUsed in several applicationsIDoes not suffer from serious problems as original MathWorkscode generation targets.ILimi

MotivationINot everybody is a programmerIControl engineers can designcontrol algorithms but cannotprogram them in CIThey use tools like Simulink to si

MotivationINot everybody is a programmerIControl engineers can designcontrol algorithms but cannotprogram them in CIThey use tools like Simulink to si

MotivationINot everybody is a programmerIControl engineers can designcontrol algorithms but cannotprogram them in CIThey use tools like Simulink to si

What is Simulink?IWidely used tool for design and simulation of dynamic systemsICommercial, non-free program – a part of MatlabIDeveloped by MathWorks

Why people use it?M. Sojka, P. Píša Usable Simulink Embedded Coder Target for Linux RTLWS16 4 / 22

Code generation in SimulinkIExample:Sine WaveProduct3ConstantPi n 1ErrFlagAnalog InputPi n 1 ErrFlagAnalog Outputdouble in1, out1;in1 = adc_read(1);ou