Pwm.h

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/*
 * Pwm.h
 *
 *  Created on: Mar 19, 2019
 *      Author: jcormier
 *
 * Documentation: http://wanda/svn/camera/soc_camera/trunk/hw/fpga/ip/pwm/PWM Design.docx
 */
 
#ifndef PWM_H_
#define PWM_H_
 
#include <chrono>
#include <string>
#include <libfpga/fpgaregister.h>
 
#include "UioIrq.h"
 
class tcPwm {
public:
        tcPwm(uint32_t anAddress, double anRefClkMhz, std::string acUioName = std::string());
        virtual ~tcPwm();
 
        bool initialized();
 
        void setRefClkMhz(double anRefClkMhz) { mnRefClkMhz = anRefClkMhz; }
 
        uint32_t readVersion();
 
        bool readCoreEnable();
        void enableCore(bool abEnable);
 
        bool readInvertPulse();
        void setInvertPulse(bool abPulseLow);
 
        void setPeriodTime(std::chrono::microseconds anPeriod);
        void setPeriodFreq(uint32_t anFreqHz);
        void setPeriodClks(uint64_t anPeriodClks);
 
        void setDutyTime(std::chrono::microseconds anDuty);
        void setDutyPercent(double anDutyPercent);
        void setDutyClks(uint32_t anDutyClks);
 
        void dumpRegisters();
 
        void enableInterrupts(bool abDeAssert, bool abEnable);
        bool interruptPending(void);
        void clearInterruptStatus(void);
        int waitForInterrupt(std::chrono::microseconds anTimeout);
 
private:
        uint16_t readClockDivider();
        void setClockDivider(uint16_t anClkDivider);
 
        uint32_t readPulseActiveTime();
        void setPulseActiveTime(uint32_t anPulseTime);
 
        uint32_t readPulsePeriod();
        void setPulsePeriod(uint32_t anPulsePeriod);
 
        tcFPGARegister<uint32_t> mhRegister;
        double mnRefClkMhz;
 
        tcUioIrq mcUioIrq;      
};
 
#endif /* PWM_H_ */