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host/Source/App/CyclesSync.c
- Committer:
- Kovalev_D
- Date:
- 2016-02-03
- Revision:
- 23:12e6183f04d4
File content as of revision 23:12e6183f04d4:
/**--------------File Info--------------------------------------------------------------------------------- ** File name: CycleSync.c ** Last modified Date: 2011-09-06 ** Last Version: V1.00 ** Descriptions: ** **-------------------------------------------------------------------------------------------------------- ** Created by: Electrooptica Inc. ** Created date: 2011-09-06 ** Version: V1.00 ** Descriptions: There is the routines for device synchronization ** **-------------------------------------------------------------------------------------------------------- *********************************************************************************************************/ #include "CyclesSync.h" #include "CntrlGLD.h" #include "SIP.h" #include "el_lin.h" #include "inputOutput.h" uint32_t Sys_Clock; //e. counter of system ticks //r. ñ÷åò÷èê âðåìåííîé ñåòêè ñèñòåìû uint32_t Seconds = 0; //e. seconds from power on //r. ÷èñëî ñåêóíä îò ìîìåíòà âêëþ÷åíèÿ ïèòàíèÿ int32_t time_1_Sec = DEVICE_SAMPLE_RATE_uks; //e. pseudosecond timer //r. ïñåâäîñåêóíäíûé òàéìåð uint32_t trm_cycl; uint32_t count; int32_t PrevPeriod = 0; uint32_t num; volatile uint32_t Latch_Rdy = 0; int32_t LatchPhase = INT32_MAX; uint32_t Ext_Latch_ResetEnable = 1; volatile uint32_t data_Rdy = 0; uint32_t Delay_UART_Enbl = DELAY_UART_ENBL; //uint32_t Delay_UART_Disbl = DELAY_UART_ENBL; uint32_t main_cycle_latch = 0; uint32_t Out_main_cycle_latch; //e. counter of main cycles between external latch pulse appearence uint32_t T_latch, Out_T_latch, temp_T_latch; /****************************************************************************** ** Function name: Latch_Event ** ** Descriptions: Routine for latch appearing ** ** parameters: None ** Returned value: None ** ******************************************************************************/ void Latch_Event() { static unsigned PreLatch = 0; // static int cc = 0; if (LatchPhase < INT32_MAX) //Åñëè LatchPhase(ôëàã çàùåëêè) < ìåíüøå ìàêñèìàëüíîãî 32-õ áèòíîãî èíòà (ïðè èíèöèàëèçàöèè int32_t LatchPhase = INT32_MAX;) òî: { Latch_Rdy = 1; //e. óñòàíîâèòü ôëàã äëÿ îáðàáîòêè íèæå if (RgConB) //Åñëè RgConB (äîïîëíèòåëüíûé ðåãèñòð óïðàâëåíèÿ, óñòàíîâëåí â åäåíèöó ïðè èíèöèàëèçàöèè â ìýéíå) óòàíîâëåí â åäåíèöó òî: { if (PreLatch) //e. åñëè ìû îòêëàäûâàåì çàùåëêó PreLatch = 0; else if ((LatchPhase < LPC_PWM1->TC) && (num == Sys_Clock)) //e. latch have appeared in current cycle { Latch_Rdy = 0; //e. bring it to the next cycle PreLatch = 1; } } } else Latch_Rdy = 0; //e. latch is absent //---------------------------temp------------------------------- /* Latch_Rdy = 0; //e. latch is absent if (cc++ == 19) { cc = 0; Latch_Rdy = 1; LatchPhase = 2500; } */ //----------------------temp-------------------------------- } /****************************************************************************** ** Function name: QEI_IRQHandler ** ** Descriptions: Latch counters by reference meander ** ** parameters: None ** Returned value: None ** ******************************************************************************/ __irq void QEI_IRQHandler (void) { static uint32_t halfQEIPeriod = 0; Cnt_curr = LPC_QEI->POS; //e. read accumulated value of counter if (LPC_QEI->INTSTAT & 0x0008) { data_Rdy = 0x0004; //e. data for Cnt_Pls or Cnt_Mns calculation are ready if (++halfQEIPeriod & 0x0001) //e. period elapsed, we can calculate Cnt_Dif { data_Rdy = 0x000C; } } LPC_QEI->CLR = 0x1fff; //e. reset interrupt request //r. ñáðîñèòü çàïðîñ ïðåðûâàíèÿ } /****************************************************************************** ** Function name: SetIntLatch ** ** Descriptions: Set timer for accumulation period ** ** parameters: Period of accumulation ** Returned value: None ** ******************************************************************************/ void SetIntLatch(uint32_t cycle) { LPC_TIM3->TCR = 0x2; //switch off and reset timer3 if (cycle != 0) { LPC_TIM3->MR0 = (cycle<<2); //load new value LPC_TIM3->TCR = 1; //switch on timer3 } } /****************************************************************************** ** Function name: SwitchRefMeandInt ** ** Descriptions: Enable/disable interrupt from reference meander ** ** parameters: switcher ** Returned value: None ** ******************************************************************************/ void SwitchRefMeandInt(uint32_t s) { LPC_QEI->CLR = 0x1fff; //e. reset all interrupts //r. ñáðîñèòü âñå ïðåðûâàíèÿ if (s) LPC_QEI->IEC = 0x1fff; //e. disable direction changing interrupt //r. çàïðåòèòü ïðåðûâàíèå ïðè èçìåíåíèè íàïðàâëåíèÿ else LPC_QEI->IES = 0x0008; //e. enable direction changing interrupt //r. ðàçðåøèòü ïðåðûâàíèå ïðè èçìåíåíèè íàïðàâëåíèÿ } /****************************************************************************** ** Function name: ExtLatch_IRQHandler ** ** Descriptions: Routine for external latch appearence processing ** ** parameters: None ** Returned value: None ** ******************************************************************************/ __irq void EINT3_IRQHandler (void) { //LPC_GPIO2->FIOSET = 0x00000020; //e. turn on the LED LatchPhase = LPC_PWM1->TC; //e. read moment of latch LPC_TIM0->TCR = 1; //e. start Mltdrop delay timer LPC_GPIOINT->IO0IntClr |= 0x0000800;//e. clean interrupt request //LPC_GPIO2->FIOCLR = 0x00000020; //e. turn off the LED } /****************************************************************************** ** Function name: IntLatch_IRQHandler ** ** Descriptions: Routine for Internal latch appearence processing ** ** parameters: None ** Returned value: None ** ******************************************************************************/ __irq void IntLatch_IRQHandler (void) { //LPC_GPIO2->FIOSET |= 0x00000080; // turn on the LED LatchPhase =(int)LPC_PWM1->TC; //e. read moment of latch LPC_TIM3->IR = 0x0001; //e. clear interrupt flag num = Sys_Clock; // count++; //LPC_GPIO2->FIOCLR |= 0x00000080; // turn off the LED } /****************************************************************************** ** Function name: SwitchMode ** ** Descriptions: Switch mode of device functionality ** ** parameters: None ** Returned value: None ** ******************************************************************************/ int SwitchMode() { //-----------------------disable latch sources --------------------- SetIntLatch(0); //e. disable internal latch LPC_TIM3->IR = 0x0001; //e. clear internal latch interrupt request LPC_GPIOINT->IO0IntEnR &= ~0x0000800; //e. disable external latch LPC_GPIOINT->IO0IntClr |= 0x0000800; //e. clean external latch interrupt request LPC_TIM0->TCR = 2; //e. stop and reset the multidrop delay timer LPC_TIM0->IR = 0x03F; //e. clear internal latch interrupt request //----------------------wait while UART and DMA are active------------- if ( LPC_GPDMACH1->CConfig & DMA_BUSY) //e. if DMA channel is busy, wait //r. åñëè êàíàë ïåðåäà÷è çàíÿò, æäàòü return 0; LPC_GPDMACH1->CConfig &= ~DMAChannelEn; //e. disable DMA for UART transmition LPC_GPDMACH2->CConfig &= ~DMAChannelEn; if (!(LPC_UART1->LSR & TRANS_SHIFT_BUF_EMPTY)) //e. transmit buffer is not empty //r. ïåðåäàþùèé áóôåð íå ïóñò return 0; LPC_UART1->FCR |= 0x4; //e. reset TX FIFO LPC_TIM0->IR = 0x3F; //e. clear all interrupt flags //---------------------configure a new exchanging parameters------------ if (Device_Mode > 3) //e. external latch mode enabled { LPC_TIM0->MR0 = 10; LPC_TIM0->MR1 = 50; //e. /10 = delay before enable signal (us) // LPC_UART1->FCR &= ~0x08; //e. TX FIFO is not source for DMA request // LPC_SC->DMAREQSEL = 0xC; //e. external latch delay timer is source for DMA request // LPC_GPIOINT->IO0IntEnR |= 0x0000800; //e. enable rising edge interrupt } else //e. internal latch mode enabled { LPC_TIM0->MR0 = 10; LPC_TIM0->MR1 = 5000; //e. /10 = delay before enable signal (us) // LPC_SC->DMAREQSEL = 0x3; //e. FIFO generate DMA request // LPC_SC->EXTINT = 0x8; //e. clean interrupt request } UART_SwitchSpeed(SRgR & 0x0030); if (Device_Mode == DM_INT_LATCH_DELTA_PS) SetIntLatch(50000); return 1; } /****************************************************************************** ** Function name: ServiceTime ** ** Descriptions: Routine for pseudoseconds counting ** ** parameters: None ** Returned value: None ** ******************************************************************************/ void ServiceTime(void)// ïñåâäîñåêóíäíûé ñ÷åò÷èê. { time_1_Sec -= PrevPeriod; if (time_1_Sec < (PrevPeriod>>1)) //1 sec elapsed with accurate 0.5 of main period { time_1_Sec = DEVICE_SAMPLE_RATE_uks; Seconds++; } if (Seconds == 3) { Seconds++;close_all_loops();} Sys_Clock++; //e. increment of the system clock register //r. èíêðåìåíò ðåãèñòðà âðåìåííîé ñåòêè ñèñòåìû PrevPeriod = LPC_PWM1->MR0; } // ServiceTime /****************************************************************************** ** Function name: WDTFeed ** ** Descriptions: Feed watchdog timer to prevent it from timeout ** ** parameters: None ** Returned value: None ** ******************************************************************************/ void WDTFeed( void ) { LPC_WDT->FEED = 0xAA; /* Feeding sequence */ LPC_WDT->FEED = 0x55; return; } /****************************************************************************** ** Function name: CounterIquiryCycle_Init ** ** Descriptions: CounterIquiryCycle_Init setup demanded GPIOs for PWM1, ** reset counter, all latches are enabled, interrupt ** on PWMMR0, install PWM interrupt to the VIC table. ** ** parameters: ** Returned value: ** ******************************************************************************/ void CounterIquiryCycle_Init(uint32_t cycle) { //PWM1 enabled after reset by default LPC_SC->PCLKSEL0 &= ~(3<<12); LPC_SC->PCLKSEL0 |= (1<<12); //PWM1 is synchronized by CCLK (100 MHz)(CCLK) PCLKSEL0 - Peripheral Clock Selection registers. LPC_PWM1->TCR = TCR_RESET; /* Counter Reset */ //#define TCR_RESET 0x00000002 èíêðåìåíòèðîâàòü ñ÷åò÷èê ïðè ñïàäåíèè èìïóëüñà ÏÂÌ. LPC_PWM1->MCR = PWMMR0I |PWMMR0R; //generate interrupt and reset timer counter ( PWMMR0I - ïðåðûâàíèå ãåíåðèðóåòñÿ êîãäà PWMMR0 ñîâïîäàåò ñî çíà÷åíèåì PWMTC. ) // ( PWMMR0R - ñáðàñûâàåò PWMTC ïðè ñîâïîäåíèè PWMTC è PWMMR0. ) LPC_PWM1->CCR = 0x1; //ðàçðåøèòü ïðåðûâàíèå òîëüêî ïðè ñîâïàäåíèè PWMTC ñ PWMMR0 (åùå ÷òî òî ñâÿçàíî ñ çàãðóçêîé ÒÑ) PrevPeriod = 10000; LPC_PWM1->MR0 = PrevPeriod; /* set PWM cycle */// çàäàíèå ïåðèîäà ñáðîñà ñ÷åò÷èêà. LPC_PWM1->PCR = PWMENA1; //e. single edge control mode, PWM1 out enabled only âêëþ÷åíèå âûõîäà ØÈÌ 1. LPC_PWM1->LER = LER0_EN ; //e. enable updating of register LPC_PWM1->TCR = TCR_CNT_EN | TCR_PWM_EN; /* counter enable, PWM enable */ //âêëþ÷åíèå ñ÷åò÷èêà è ØÈÌ NVIC_DisableIRQ(PWM1_IRQn);//çàïðåòèòü ïðåðûâàíèå. return ; } __irq void TIMER0_IRQHandler() { int val = LPC_TIM0->IR; LPC_TIM0->IR |= 3; if (val & 1) //MAT 1.0 interrupt { LPC_GPIO2->FIOSET |= 1<<6; // turn on the LED LPC_TIM0->IR |= 1; return; } if (val & 2) //MAT 1.1 interrupt { LPC_GPIO2->FIOCLR |= 1<<6; // turn on the LED LPC_TIM0->IR |= 2; return; } if (val & 4) //MAT 0.2 interrupt { // LPC_GPIO0->FIOSET2 |= 0xFF; //set P0.23 // LPC_GPIO2->FIOSET |= 0x00000040; // turn on the LED // LPC_TIM0->IR |= 4; return; } return; } /****************************************************************************** ** Function name: ExtLatch_Init ** ** Descriptions: Initialization of external latch ** ** parameters: None ** Returned value: None ** ******************************************************************************/ void ExtLatch_Init() { LPC_PINCON->PINSEL4 &= ~0xC000000; //e. èñïîëüçîâàòü P2.13 êàê GPIO. LPC_PINCON->PINSEL0 &= ~0x0C00000; //e. èñïîëüçîâàòü P0.11 êàê GPIO. LPC_GPIO0->FIODIR &= ~0x0000800; //e. èñïîëüçîâàòü P0.11 âõëîä. LPC_GPIOINT->IO0IntEnR &= ~0x0000800; //e. îòêëþ÷èòü âíóòðåííþþ çàùåëêó. LPC_GPIOINT->IO0IntClr |= 0x0000800; //e. ñáðîñèòü çàïðîñû íà ïðåðûâàíèÿ NVIC_EnableIRQ(EINT3_IRQn); // ðàçðåøèòü ïðåðûâàíèÿ. //+++++++ initialization of timer for multidrop delay generation+++++++++++++++++++++++ //e. TIMER0 enabled by default LPC_SC->PCLKSEL0 &= ~(3<<2); //e. ñáðîñèòü ÷àñòîòó òàéìåðà 0 LPC_SC->PCLKSEL0 |= (3<<2); //e. óñòàíîâèòü ÷àñòîòó òàéìåðà 0 íà CLK/8. LPC_TIM0->PR = 0; //e. óñòàíîâèòü äåëèòåëü ÷àñòîòû â 0. LPC_TIM0->IR = 0x3F; //e. î÷èñòèòü ôëàãè ïðåðûâàíèé. LPC_TIM0->MCR = 1 |(1<<3)|MR1_RESET |MR1_STOP; //e. ñáðîñèòü è îñòàíîâèòü òàéìåð ïîñëå ñîâïàäåíèÿ MR1 è TC. LPC_TIM0->CCR = 0; //e. ñîäåðæèìîå òàéìåðà çàãðóæàåòñÿ ïðè ïîÿâëåíèè ïåðåäíåãî ôðîíòà çàùåëêè. LPC_TIM0->CTCR = 0; //e. timer0 â ðåæèìå òàéìåðà. LPC_TIM0->MR0 = /*Device_blk.Address**/10; //e. delay before UART transmitter loading LPC_TIM0->MR1 = /*Device_blk.Address**/5000; //e. delay before UART transmitter start //e. set first empty) event of timer NVIC_DisableIRQ(TIMER0_IRQn); } /****************************************************************************** ** Function name: IntLatch_Init ** ** Descriptions: Initialization of iternal latch cycle generation ** ** parameters: None ** Returned value: None ** ******************************************************************************/ void IntLatch_Init() { LPC_SC->PCONP |= (1<<23); //âêëþ÷èò TIME3(òàéìåð) //e. by default timer3 mode is not counter (T3CTCR[1,0]=0) LPC_SC->PCLKSEL1 &= SYNC_CLCK4; // ÷àñòîòà âõîäíîãî ñèãíàëà ðàâíà CLCK/4 LPC_SC->PCLKSEL1 |= (1<<14); // timer 3 input frequency equal to CLCK/4 // LPC_PINCON->PINSEL1 |= (3<<16); //e. CAP 3.1 is connected to P0.24 //e. by default CAP3.0 is connected to timer3 LPC_TIM3->PR = 0; //e. óñòàíîâèòü ïðåääåëèòåëü òàéìåðà3 íà 0. LPC_TIM3->IR = 0x0001; //e. î÷èñòèòü ôëàãè ïðåðûâàíèé. LPC_TIM3->MCR = MR0_RESET |MR0_INT_EN |MR0_NO_STOP; // óñòàíîâêà ôëàãîâ ïðåðûâàíèé êîòîðûå âûïîëíÿþòñÿ ïðè ñîâïàäåíèè òàéìåðà è ÌÑR. LPC_TIM3->CCR = 0x0001; //ñîäåðæèìîå ñ÷åò÷èêà çàãðóæàåòñÿ ïî ïðèõîäó ïåðåäíåãî ôðîíòà çàùåëêè. NVIC_EnableIRQ(TIMER3_IRQn); //ðàçðåøèòü ïðåðûâàíèÿ. } /***************************************************************************** ** Function name: WDTInit ** ** Descriptions: Initialize watchdog timer, install the ** watchdog timer interrupt handler ** ** parameters: None ** Returned value: true or false, return false if the VIC table ** is full and WDT interrupt handler can be ** installed. ** *****************************************************************************/ uint32_t WDTInit( void ) { NVIC_DisableIRQ(WDT_IRQn); LPC_WDT->TC = WDT_FEED_VALUE; // once WDEN is set, the WDT will start after feeding LPC_WDT->MOD = WDEN; LPC_WDT->FEED = 0xAA; // Feeding sequence LPC_WDT->FEED = 0x55; return 1; } /****************************************************************************** ** End Of File ******************************************************************************/