93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
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#include "SmartError.h"
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CSmartError::CSmartError()
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{
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reset();
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}
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void
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CSmartError::reset()
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{
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m_prevRunState = 0;
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m_Error = 0;
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m_bInhibit = false;
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}
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// we use inhibit when we manually command the heater off during preheat
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// otherwise we'll register an ignition fail event
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void
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CSmartError::inhibit()
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{
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m_bInhibit = true;
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m_Error = 0;
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}
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// accept a fresh heater frame
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// inpsect the advertised run state, tracking when and how it transitions out
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// of preheat especially.
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// abnormal transitions are registered and becoem our smart m_Error
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// In addition, the hetaer frame has the ErrState updated to track the
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// smart error, providing no heater error exists!
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void
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CSmartError::monitor(CProtocol& heaterFrame)
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{
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if(heaterFrame.verifyCRC()) {
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// only accept valid heater frames!
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monitor(heaterFrame.getRunState());
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unsigned char HtrErr = heaterFrame.getErrState();
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if((HtrErr & 0xfe) == 0) {
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// heater is Idle or Normal running state (E-0X + 1 in protocol!!)
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unsigned char smartErr = getError();
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if(smartErr) {
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heaterFrame.setErrState(smartErr); // 10 = ign fail, 11 = retry
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heaterFrame.setCRC(); // changed the message, fix the CRC!
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}
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}
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}
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}
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// test the new run state value, comparing to previous
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// detect abnormal transitions
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void
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CSmartError::monitor(unsigned char newRunState)
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{
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// check if moving away from heater Idle state (S0)
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// especially useful if an OEM controller exists
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if((m_prevRunState == 0) && newRunState) {
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// reset the smart error
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m_Error = 0;
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m_bInhibit = false;
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}
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if(!m_bInhibit) {
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if(m_prevRunState == 2) { // preheat state (S2)
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if(newRunState == 4) {
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// transitioned from preheat to ignited
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// - all good!
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m_Error = 0;
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}
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else if(newRunState > 5) {
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// transitioned from preheat to post glow
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// - second ignition attempt failed, heater is shutting down
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m_Error = 11;
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}
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else if(newRunState == 3) {
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// transitioned from preheat to retry
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// - first ignition attempt failed, heater will retry
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m_Error = 12;
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}
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}
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}
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m_prevRunState = newRunState;
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}
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// return our smart error, if it exists, as the registered code
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unsigned char
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CSmartError::getError()
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{
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if(m_Error) {
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return m_Error;
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}
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return 0;
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}
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