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Diff: CyclesSync.c
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/CyclesSync.c Sat Jan 30 13:00:39 2016 +0000 @@ -0,0 +1,425 @@ + +/**--------------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. ������� ��������� ����� ������� +uint32_t Seconds = 0; //e. seconds from power on //r. ����� ������ �� ������� ��������� ������� +int32_t time_1_Sec = DEVICE_SAMPLE_RATE_uks; //e. pseudosecond timer //r. ��������������� ������ +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) //���� LatchPhase(���� �������) < ������ ������������� 32-� ������� ���� (��� ������������� int32_t LatchPhase = INT32_MAX;) ��: + { + Latch_Rdy = 1; //e. ���������� ���� ��� ��������� ���� + if (RgConB) //���� RgConB (�������������� ������� ����������, ���������� � ������� ��� ������������� � �����) ��������� � ������� ��: + { + if (PreLatch) //e. ���� �� ����������� ������� + 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. �������� ������ ���������� + } +/****************************************************************************** +** 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. �������� ��� ���������� + if (s) + LPC_QEI->IEC = 0x1fff; //e. disable direction changing interrupt //r. ��������� ���������� ��� ��������� ����������� + else + LPC_QEI->IES = 0x0008; //e. enable direction changing interrupt //r. ��������� ���������� ��� ��������� ����������� +} +/****************************************************************************** +** 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. ���� ����� �������� �����, ����� + 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. ���������� ����� �� ���� + 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)// ��������������� �������. +{ + 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. ��������� �������� ��������� ����� ������� + 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 ���������������� ������� ��� �������� �������� ���. + LPC_PWM1->MCR = PWMMR0I |PWMMR0R; //generate interrupt and reset timer counter ( PWMMR0I - ���������� ������������ ����� PWMMR0 ��������� �� ��������� PWMTC. ) + // ( PWMMR0R - ���������� PWMTC ��� ���������� PWMTC � PWMMR0. ) + + LPC_PWM1->CCR = 0x1; //��������� ���������� ������ ��� ���������� PWMTC � PWMMR0 (��� ��� �� ������� � ��������� ��) + + + PrevPeriod = 10000; + LPC_PWM1->MR0 = PrevPeriod; /* set PWM cycle */// ������� ������� ������ ��������. + LPC_PWM1->PCR = PWMENA1; //e. single edge control mode, PWM1 out enabled only ��������� ������ ��� 1. + LPC_PWM1->LER = LER0_EN ; //e. enable updating of register + LPC_PWM1->TCR = TCR_CNT_EN | TCR_PWM_EN; /* counter enable, PWM enable */ //��������� �������� � ��� + + NVIC_DisableIRQ(PWM1_IRQn);//��������� ����������. + + + 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. ������������ P2.13 ��� GPIO. + LPC_PINCON->PINSEL0 &= ~0x0C00000; //e. ������������ P0.11 ��� GPIO. + LPC_GPIO0->FIODIR &= ~0x0000800; //e. ������������ P0.11 �����. + LPC_GPIOINT->IO0IntEnR &= ~0x0000800; //e. ��������� ���������� �������. + LPC_GPIOINT->IO0IntClr |= 0x0000800; //e. �������� ������� �� ���������� + + NVIC_EnableIRQ(EINT3_IRQn); // ��������� ����������. + +//+++++++ initialization of timer for multidrop delay generation+++++++++++++++++++++++ + //e. TIMER0 enabled by default + LPC_SC->PCLKSEL0 &= ~(3<<2); //e. �������� ������� ������� 0 + LPC_SC->PCLKSEL0 |= (3<<2); //e. ���������� ������� ������� 0 �� CLK/8. + LPC_TIM0->PR = 0; //e. ���������� �������� ������� � 0. + LPC_TIM0->IR = 0x3F; //e. �������� ����� ����������. + LPC_TIM0->MCR = 1 |(1<<3)|MR1_RESET |MR1_STOP; //e. �������� � ���������� ������ ����� ���������� MR1 � TC. + LPC_TIM0->CCR = 0; //e. ���������� ������� ����������� ��� ��������� ��������� ������ �������. + LPC_TIM0->CTCR = 0; //e. timer0 � ������ �������. + + 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); //������� TIME3(������) + //e. by default timer3 mode is not counter (T3CTCR[1,0]=0) + + LPC_SC->PCLKSEL1 &= SYNC_CLCK4; // ������� �������� ������� ����� 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. ���������� ������������ �������3 �� 0. + LPC_TIM3->IR = 0x0001; //e. �������� ����� ����������. + LPC_TIM3->MCR = MR0_RESET |MR0_INT_EN |MR0_NO_STOP; // ��������� ������ ���������� ������� ����������� ��� ���������� ������� � ��R. + LPC_TIM3->CCR = 0x0001; //���������� �������� ����������� �� ������� ��������� ������ �������. + + NVIC_EnableIRQ(TIMER3_IRQn); //��������� ����������. +} +/***************************************************************************** +** 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 +******************************************************************************/ +