/*------------------------------------------------------------------------------
*
* FUNCTION DESCRIPTION:
* This function contains the loop which consists of three procedures,
* tx setup, tx loop and tx shutdown in the application.
* During waiting for repeat transmission, check button state.
* Once any new push button is detected, then transmit the new packet
* instead of the current packet.
*
*------------------------------------------------------------------------------
*/
void vRepeatTxLoop (void)
{
vFCast_Tune( fDesiredFreq );
if (rOdsSetup.bModulationType == bModFSK_c)
{
vFCast_FskAdj( bFskDev );
}
// Wait until there is a temperature sample available
while ( 0 == bDmdTs_GetSamplesTaken() )
{
//wait
}
// Tune the PA with the temperature as an argument
vPa_Tune( iDmdTs_GetLatestTemp());
vPacketAssemble();
//Convert whole frame before transmission
vConvertPacket(rOdsSetup.bModulationType);
vStl_PreLoop();
do
{
// get current timestamp
lTimestamp = lSys_GetMasterTime();
//if part is burned to user or run mode
if ((PROT0_CTRL & M_NVM_BLOWN) > 1)
{
//turn LED on
GPIO_LED = 1;
}
while ( (lSys_GetMasterTime() - lTimestamp) < lLEDOnTime )
{
//wait for LED ON time to expire
}
GPIO_LED = 0; //turn LED off
//Transmit packet
vStl_SingleTxLoop(pbFrameHead,bFrameSize);
// Wait repeat interval.
while ( (lSys_GetMasterTime() - lTimestamp) < wRepeatInterval_c );
}while(--bRepeatCount);
vStl_PostLoop();
// Clear time value for next button push detecting.
vSys_SetMasterTime(0);
return;
}
void main (void)
{
/*------------------------------------------------------------------------------
* SETUP PHASE
*------------------------------------------------------------------------------
*/
//Set DMD interrupt to high priority,
// any other interrupts have to stay low priority
PDMD=1;
// Disable the Matrix and Roff modes on GPIO[3:1]
PORT_CTRL &= ~(M_PORT_MATRIX | M_PORT_ROFF | M_PORT_STROBE);
PORT_CTRL |= M_PORT_STROBE;
PORT_CTRL &= (~M_PORT_STROBE);
// Turn LED control off
GPIO_LED = 0;
vSys_Setup( 10 );
vSys_SetMasterTime(0);
// Setup the bandgap
vSys_BandGapLdo( 1 );
if ((PROT0_CTRL & M_NVM_BLOWN) > 1) //if part is burned to user or run mode.
{
// Check the first power up bit meaning keyfob is powered on by battery insertion
if ( 0 != (SYSGEN & M_POWER_1ST_TIME) )
{
vSys_FirstPowerUp(); // Function will shutdown.
}
}
// Set LED intensity. Valid values are 0 (off), 1, 2 and 3
vSys_LedIntensity( 3 );
lLEDOnTime=20;
//Get part ID (4byte factory burned unique serial number)
lPartID = lSys_GetProdId();
// Initialize isr call counter
bIsr_DebounceCount = 0;
// BSR parameters initialization
rBsrSetup.bButtonMask = bButtonMask_c;
#ifdef CRYSTAL
rBsrSetup.bButtonMask &= 0xFE;// clear bit0; GPIO0 will be used by crystal
#endif
rBsrSetup.pbPtsReserveHead = abBsrPtsPlaceHolder;
rBsrSetup.bPtsSize = 3;
rBsrSetup.bPushQualThresh = 3;
// Setup the BSR
vBsr_Setup( &rBsrSetup );
// Setup the RTC to tick every 5ms and clear it. Keep it disabled.
RTC_CTRL = (0x07 << B_RTC_DIV) | M_RTC_CLR;
// Enable the RTC
RTC_CTRL |= M_RTC_ENA;
// Enable the RTC interrupt and global interrupt enable
ERTC = 1;
EA = 1;
fDesiredFreqOOK = f_433_RkeFreqOOK_c;
fDesiredFreqFSK = f_433_RkeFreqFSK_c;
bFskDev = b_433_RkeFskDev_c;
// Setup the PA.
rPaSetup.bLevel = b_433_PaLevel_c;
rPaSetup.wNominalCap = b_433_PaNominalCap_c;
rPaSetup.bMaxDrv = b_433_PaMaxDrv_c;
rPaSetup.fAlpha = 0.0;
rPaSetup.fBeta = 0.0;
vPa_Setup( &rPaSetup );
#ifdef OOK
rOdsSetup.bModulationType = bModOOK_c;
// Setup the STL encoding for Manchester. No user encoding function therefore the pointer is NULL.
vStl_EncodeSetup( bEncodeManchester_c, NULL );
fDesiredFreq = fDesiredFreqOOK;
bPreamble = bPreambleManch_c;
#else //FSK
rOdsSetup.bModulationType = bModFSK_c;
// Setup the STL encoding for none. No user encoding function therefore the pointer is NULL.
vStl_EncodeSetup( bEnc_NoneNrz_c, NULL );
fDesiredFreq = fDesiredFreqFSK;
bPreamble = bPreambleNrz_c;
#endif
// Setup the ODS
// Set group width to 7, which means 8 bits/encoded byte to be transmitted.
// The value must match the output width of the data encoding function
// set by vStl_EncodeSetup()!
rOdsSetup.bGroupWidth = 7;
rOdsSetup.bClkDiv = 5;
rOdsSetup.bEdgeRate = 0;
// Configure the warm up intervals
rOdsSetup.bLcWarmInt = 0;
rOdsSetup.bDivWarmInt = 5;
rOdsSetup.bPaWarmInt = 4;
// 24MHz / (bClkDiv+1) / 9.6kbps = 417
rOdsSetup.wBitRate = 417;
vOds_Setup( &rOdsSetup );
// Setup frequency casting .. needed to be called once per boot
vFCast_Setup();
#ifdef CRYSTAL
//XO Setup
rXoSetup.fXoFreq = 10000000.0; // Frequency of the external crystal [Hz]
rXoSetup.bLowCap = 1; // Capacitance setup of crystal 0 = above 14pf, 1 = below 14pf
vFCast_XoSetup( &rXoSetup );
#endif
// Measure the battery voltage in mV, only once per boot to save power
// Make loaded measurement .. bBatteryWait_c * 17ms wait after loading
iBatteryMv = iMVdd_Measure( bBatteryWait_c );
if (iBatteryMv < iLowBatMv_c)
{
bBatStatus = 0;
}
else
{
bBatStatus = 1;
}
// Setup the DMD temperature sensor for temperature mode
vDmdTs_RunForTemp( 3 ); // Skip first 3 samples
// Wait until there is a valid DMD temp sensor sample
while ( 0 == bDmdTs_GetSamplesTaken() )
{
//wait
}
/*------------------------------------------------------------------------------
* TRANSMISSION LOOP PHASE
*------------------------------------------------------------------------------
*/
// Application loop, including push button state analyzation and transmission.
while(1)
{
// Buttons analyzation
vButtonCheck();
if (bButtonState)
{
// Packet transmit repeat counter
bRepeatCount = bRepeatCount_c;
// Transmit.
vRepeatTxLoop();
//Sync counter increment
}
else if( (lSys_GetMasterTime() >> 5) > bMaxWaitForPush_c )
{
if ((PROT0_CTRL & M_NVM_BLOWN) > 1) //if part is burned to user or run mode.
{
//Disable all interrupts
EA = 0;
#ifdef CRYSTAL
// Disable XO
bXO_CTRL = 0 ;
// Wait 20us for XO to stop
vSys_16BitDecLoop( 20 );
#endif
// Shutdown
vSys_Shutdown();
}
}
}
}
/*------------------------------------------------------------------------------
*
* FUNCTION DESCRIPTION:
* This function tunes the si4010 for transmission and transmits frames.
* It consists of two fundamental phases, setup and the transmission loop.
*
* Setup Phase:
* The Setup Phase calls all setup function for the need API modules.
* These functions are to be called once per boot of the chip.
* vSys_Setup
* vPa_Setup
* vOds_Setup
* vStl_EncodeSetup
* vFCast_Setup
*
* Transmission Loop Phase:
* The Transmission Loop Phase is a loop which transmits the proper frame
* once a button is pushed. Frequency casting, FSK adjustment
* and PA tuning are all performed between each transmission.
*
*------------------------------------------------------------------------------
*/
void main(void)
{
/*------------------------------------------------------------------------------
* SETUP PHASE
*------------------------------------------------------------------------------
*/
//Set DMD interrupt to high priority,
// any other interrupts have to stay low priority
PDMD=1;
// Parameters Initialization.
vAppInitial();
// Call the system setup. This just for initialization.
// Argument of 1 just configures the SYS module such that the
// bandgap can be turned off if needed.
vSys_Setup( 1 );
// Setup the bandgap for working with the temperature sensor here
vSys_BandGapLdo( 1 );
// Setup the BSR
vBsr_Setup( &rBsrSetup );
// Setup the RTC to tick every 5ms and clear it. Keep it disabled.
RTC_CTRL = (0x07 << B_RTC_DIV) | M_RTC_CLR;
// Enable the RTC
RTC_CTRL |= M_RTC_ENA;
// Enable the RTC interrupt and global interrupt enable
ERTC = 1;
EA = 1;
// Setup the PA
vPa_Setup( &rPaSetup );
// ODS setup
vOds_Setup( &rOdsSetup );
// Setup the STL encoding to NoneNrz code. we
// leave the pointer at NULL.
// vStl_EncodeSetup( bEnc_Manchester_c, NULL );
vStl_EncodeSetup( bEnc_NoneNrz_c, NULL );
// Setup frequency casting .. needed to be called once per boot
vFCast_Setup();
/*------------------------------------------------------------------------------
* TRANSMISSION LOOP PHASE
*------------------------------------------------------------------------------
*/
// Application loop, including push button state analyzation and transmission.
while(1)
{
// Buttons analyzation and update task flag.
vButtonCheck();
if (bAp_ButtonState)
{
// Set frame size and frame header pointer
vPacketAssemble();
if (lPayLoad)
{
// Start to transmit
vRtl_RepeatTxLoop();
}
}
else if( (lSys_GetMasterTime() >> 5) > bMaxWaitForPush_c )
{
// Shutdown if timeout, currently after about 1.6s,
// For debugging with IDE, comment it out since it does not support boot.
vSys_Shutdown();
}
}
}
/*------------------------------------------------------------------------------
*
* FUNCTION DESCRIPTION:
* This function contains the loop which consists of three procedures,
* tx setup, tx loop and tx shutdown in the application.
* During waiting for repeat transmission, check button state.
* Once any new push button is detected, then transmit the new packet
* instead of the current packet.
*
*------------------------------------------------------------------------------
*/
void vRtl_RepeatTxLoop(void)
{
// Repeat packet 8 times for each button packet transmission.
bRepeatCount = bRepeatCount_c;
do
{
// Setup the bandgap
vSys_BandGapLdo( 1 );
// Save current timestamp for repeat transmission interval checking later.
lTimestamp = lSys_GetMasterTime();
// Run at 433.92 MHz (frequency).Input is in [Hz].
// The function also calculates necessary data to be used by the single Tx loop
// main function, vStl_SingleTxLoop(), for fine frequency correction during TX
vFCast_Tune( fOperatingFrequency );
// bFskDeviation comes from the calculation spreadsheet.
// vFCast_FskAdj( bFskDeviation );
// Now wait until there is a temperature value
while ( 0 == bDmdTs_GetSamplesTaken() ){}
// Tune the PA with the current temperature as an argument
vPa_Tune( iDmdTs_GetLatestTemp());
// Sets up the temperature sensor and demodulator,
// enable ODS before entering the single tx loop.
vStl_PreLoop();
// Then assign the first address of the frame buffer to
// the packet pointer used for transmission.
pbRke_FrameHead = abButtonFrame;
// call the single tx loop function
vStl_SingleTxLoop(pbRke_FrameHead,
bFrameSize_c);
// Disable the temperature sensor and ODS
vStl_PostLoop();
// Disable Bandgap and LDO
vSys_BandGapLdo(0);
//turn LED on
GPIO_LED = 1;
// Wait repeat interval.
while ( (lSys_GetMasterTime() - lTimestamp) < wRepeatInterval );
//turn LED off
GPIO_LED = 0;
}while(--bRepeatCount);
// After repeat transmission, clear all tasks flag.
bAp_ButtonState = 0;
// Clear time value for next button push detecting.
vSys_SetMasterTime(0);
return;
}
