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87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
4 weeks ago
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/*
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* MeasureTimePeriod.cpp
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*
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* Author: Aleksey Gerasimenko
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* gerasimenko.aleksey.n@gmail.com
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*/
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#include "DSP28335/MeasureTimePeriod.h"
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namespace DSP28335
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{
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//Constructor
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MeasureTimePeriod::MeasureTimePeriod(CPUTIMER_VARS& CPUTimer):
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m_CPUTimer(CPUTimer),
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m_timer_result((Uint32)0),
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m_timer_result_previous((Uint32)0),
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m_magic_number((Uint32)0),
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_execute(&DSP28335::MeasureTimePeriod::_execute_start)
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//
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{}//end Constructor
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// #pragma CODE_SECTION("ramfuncs");
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void MeasureTimePeriod::execute(void)
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{
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(this->*_execute)();
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//
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}//end
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//
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// #pragma CODE_SECTION("ramfuncs");
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void MeasureTimePeriod::reset(void)
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{
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m_CPUTimer.RegsAddr->TCR.bit.TSS = 1; // Stop CPU Timer
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m_CPUTimer.RegsAddr->PRD.all = 0xFFFFFFFF;
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m_CPUTimer.RegsAddr->TCR.bit.TRB = 1; // Reload CPU Timer
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//
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_execute = &DSP28335::MeasureTimePeriod::_execute_start;
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//
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}//end
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//
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// #pragma CODE_SECTION("ramfuncs");
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void MeasureTimePeriod::inc_counter()
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{
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m_CPUTimer.InterruptCount++;
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//
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}//
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//
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// #pragma CODE_SECTION("ramfuncs");
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void MeasureTimePeriod::reset_counter()
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{
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m_CPUTimer.InterruptCount = (Uint32)0;
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//
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}//
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//
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void MeasureTimePeriod::set_magic(const Uint32 magic)
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{
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m_magic_number = (Uint32)magic;
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//
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}//end
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//
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// #pragma CODE_SECTION("ramfuncs");
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void MeasureTimePeriod::_execute_start(void)
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{
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_execute = &DSP28335::MeasureTimePeriod::_execute_scan;
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//
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m_CPUTimer.RegsAddr->TCR.bit.TSS = 1; // Stop CPU Timer
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m_CPUTimer.RegsAddr->TCR.bit.TRB = 1; // Reload CPU Timer
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m_CPUTimer.RegsAddr->TCR.bit.TSS = 0; // Start CPU Timer
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//
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}//end
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//
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// #pragma CODE_SECTION("ramfuncs");
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void MeasureTimePeriod::_execute_scan(void)
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{
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m_CPUTimer.RegsAddr->TCR.bit.TSS = 1; // Stop CPU Timer
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//
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m_timer_result_previous = m_timer_result;
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m_timer_result = m_CPUTimer.RegsAddr->PRD.all - m_CPUTimer.RegsAddr->TIM.all - m_magic_number;
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//
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m_CPUTimer.RegsAddr->TCR.bit.TRB = 1; // Reload CPU Timer
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m_CPUTimer.RegsAddr->TCR.bit.TSS = 0; // Start CPU Timer
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//
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}//end
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//
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} /* namespace DSP28335 */
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