Ultraschall Test Geschwindigkeitsregelung
Fork of BertlLib by
Bertl14.cpp
- Committer:
- hollegha2
- Date:
- 2014-04-25
- Revision:
- 0:e0131e671ea0
- Child:
- 1:cb66be3bb78f
- Child:
- 6:78243412d2b3
File content as of revision 0:e0131e671ea0:
#include "mbed.h" #include "Bertl14.h" Motor::Motor(PinName pwm, PinName fwd, PinName rev) : _pwm(pwm), _fwd(fwd), _rev(rev) { _pwm.period(0.001); _pwm=0; _fwd=0; _rev=0; } void Motor::SetPow(float aPow) { if( aPow>=0.0 ) { _fwd=1; _rev=0; _pwm = aPow; } else { _fwd=0; _rev=1; _pwm = -aPow; } } BertlDrive::BertlDrive(PinName pwm, PinName fwd, PinName rev, PinName encoder) : Motor(pwm,fwd,rev) , _enc(encoder) { encCnt = 0; } void BertlDrive::Init() { _enc.rise(this, &BertlDrive::EncoderISR); _enc.fall(this, &BertlDrive::EncoderISR); } void BertlDrive::EncoderISR() { encCnt++; } PortEx::PortEx() : _i2c(p28,p27), _p6Event(p6) { btns=btnEvent=0; useISR = 1; } void PortEx::Init() { char cmd[4]; _i2c.frequency(100000); wait(0.01); // Port0 Config Port0 Out Port1 In cmd[0]=0x06; cmd[1]=0x00; cmd[2]=0xFF; _i2c.write(DEV, cmd, 3, false); SetLedPort(0); _p6Event.fall(this, &PortEx::p6ISR); } void PortEx::p6ISR() { if( !useISR ) return; int16_t prev = btns; ReadButtons(); if( !btns ) btns = prev; else btnEvent = 1; } void PortEx::SetLedPort(uint8_t aBitPattern) { char cmd[4]; cmd[0]=2; cmd[1]=~aBitPattern; _i2c.write(DEV, cmd, 2, false); } void PortEx::SetLeds(uint8_t aBitPattern) { _currLeds |= aBitPattern; SetLedPort(_currLeds); } void PortEx::ToggleLeds(uint8_t aBitPattern) { _currLeds ^= aBitPattern; SetLedPort(_currLeds); } void PortEx::ClearLeds() { _currLeds=0; SetLedPort(0); } void PortEx::ReadButtons() { char cmd[4]; cmd[0]=1; _i2c.write(DEV, cmd, 1, true); _i2c.read(DEV|1, cmd, 1, false); btns = cmd[0]; } void PortEx::WaitUntilButtonPressed() { int prev = useISR; useISR = 0; btns = 0; while(1) { ReadButtons(); if( btns ) break; wait(0.01); } btns=btnEvent=0; useISR = prev; } UsDistSens::UsDistSens(PinName pinTrigger, PinName pinEcho) : trigger(pinTrigger),echo(pinEcho) { echo.rise(this, &UsDistSens::RisingISR); echo.fall(this, &UsDistSens::FallingISR); } void UsDistSens::StartMeas() { trigger=1; wait_us(12); trigger=0; stw.start(); } void UsDistSens::RisingISR() { stw.reset(); } void UsDistSens::FallingISR() { dist=stw.read_us(); distCM = (float)dist*(343.2E-4/2.0); }