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Diff: CyclesSync.c
- Revision:
- 21:bc8c1cec3da6
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- 0:8ad47e2b6f00
- Child:
- 112:4a96133a1311
diff -r 18e3fd7b92d0 -r bc8c1cec3da6 CyclesSync.c --- a/CyclesSync.c Tue Feb 02 17:14:25 2016 +0000 +++ b/CyclesSync.c Wed Feb 03 07:19:30 2016 +0000 @@ -1,9 +1,8 @@ - /**--------------File Info--------------------------------------------------------------------------------- ** File name: CycleSync.c ** Last modified Date: 2011-09-06 ** Last Version: V1.00 -** Descriptions: +** Descriptions: ** **-------------------------------------------------------------------------------------------------------- ** Created by: Electrooptica Inc. @@ -11,7 +10,7 @@ ** Version: V1.00 ** Descriptions: There is the routines for device synchronization ** -**-------------------------------------------------------------------------------------------------------- +**-------------------------------------------------------------------------------------------------------- *********************************************************************************************************/ #include "CyclesSync.h" #include "CntrlGLD.h" @@ -19,23 +18,23 @@ #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 Sys_Clock; //e. counter of system ticks //r. счетчик временной сетки системы +uint32_t Seconds = 0; //e. seconds from power on //r. число секунд от момента включения питания +int32_t time_1_Sec = DEVICE_SAMPLE_RATE_uks; //e. pseudosecond timer //r. псевдосекундный таймер uint32_t trm_cycl; uint32_t count; - int32_t PrevPeriod = 0; +int32_t PrevPeriod = 0; uint32_t num; volatile uint32_t Latch_Rdy = 0; - int32_t LatchPhase = INT32_MAX; +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 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; @@ -46,38 +45,34 @@ ** ** parameters: None ** Returned value: None -** +** ******************************************************************************/ void Latch_Event() { - static unsigned PreLatch = 0; + 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-------------------------------- + if (LatchPhase < INT32_MAX) { //Если LatchPhase(флаг защелки) < меньше максимального 32-х битного инта (при инициализации int32_t LatchPhase = INT32_MAX;) то: + Latch_Rdy = 1; //e. установить флаг для обработки ниже + if (RgConB) { //Если RgConB (дополнительный регистр управления, установлен в еденицу при инициализации в мэйне) утановлен в еденицу то: + if (PreLatch) //e. если мы откладываем защелку + 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-------------------------------- } /****************************************************************************** @@ -87,24 +82,22 @@ ** ** parameters: None ** Returned value: None -** +** ******************************************************************************/ - __irq void QEI_IRQHandler (void) - { - static uint32_t halfQEIPeriod = 0; +__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 + 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. �������� ������ ���������� - } + if (++halfQEIPeriod & 0x0001) { //e. period elapsed, we can calculate Cnt_Dif + data_Rdy = 0x000C; + } + } + LPC_QEI->CLR = 0x1fff; //e. reset interrupt request //r. сбросить запрос прерывания +} /****************************************************************************** ** Function name: SetIntLatch ** @@ -112,16 +105,15 @@ ** ** 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 - } + 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 @@ -130,15 +122,15 @@ ** ** 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. ��������� ���������� ��� ��������� ����������� + LPC_QEI->CLR = 0x1fff; //e. reset all interrupts //r. сбросить все прерывания + if (s) + LPC_QEI->IEC = 0x1fff; //e. disable direction changing interrupt //r. запретить прерывание при изменении направления + else + LPC_QEI->IES = 0x0008; //e. enable direction changing interrupt //r. разрешить прерывание при изменении направления } /****************************************************************************** ** Function name: ExtLatch_IRQHandler @@ -147,113 +139,112 @@ ** ** 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 - } - /****************************************************************************** +__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 - } +__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 +//-----------------------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_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; + 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. если канал передачи занят, ждать + 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 + if (!(LPC_UART1->LSR & TRANS_SHIFT_BUF_EMPTY)) //e. transmit buffer is not empty //r. передающий буфер не пуст + return 0; + LPC_UART1->FCR |= 0x4; //e. reset TX FIFO - LPC_TIM0->IR = 0x3F; //e. clear all interrupt flags + 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 + 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) + } 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); + } + + UART_SwitchSpeed(SRgR & 0x0030); - if (Device_Mode == DM_INT_LATCH_DELTA_PS) - SetIntLatch(50000); - return 1; + 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)// ��������������� �������. +void ServiceTime(void)// псевдосекундный счетчик. { - time_1_Sec -= PrevPeriod; + 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; + 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. инкремент регистра временной сетки системы + PrevPeriod = LPC_PWM1->MR0; } // ServiceTime /****************************************************************************** @@ -263,13 +254,13 @@ ** ** parameters: None ** Returned value: None -** +** ******************************************************************************/ void WDTFeed( void ) { - LPC_WDT->FEED = 0xAA; /* Feeding sequence */ - LPC_WDT->FEED = 0x55; - return; + LPC_WDT->FEED = 0xAA; /* Feeding sequence */ + LPC_WDT->FEED = 0x55; + return; } /****************************************************************************** @@ -279,95 +270,92 @@ ** reset counter, all latches are enabled, interrupt ** on PWMMR0, install PWM interrupt to the VIC table. ** -** parameters: -** Returned value: -** +** 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 (��� ��� �� ������� � ��������� ��) - +{ + //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. - 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 */ //��������� �������� � ��� + LPC_PWM1->TCR = TCR_RESET; /* Counter Reset */ //#define TCR_RESET 0x00000002 инкрементировать счетчик при спадении импульса ПВМ. + LPC_PWM1->MCR = PWMMR0I |PWMMR0R; //generate interrupt and reset timer counter ( PWMMR0I - прерывание генерируется когда PWMMR0 совподает со значением PWMTC. ) + // ( PWMMR0R - сбрасывает PWMTC при совподении PWMTC и PWMMR0. ) - NVIC_DisableIRQ(PWM1_IRQn);//��������� ����������. + LPC_PWM1->CCR = 0x1; //разрешить прерывание только при совпадении PWMTC с PWMMR0 (еще что то связано с загрузкой ТС) - return ; + PrevPeriod = 10000; + LPC_PWM1->MR0 = PrevPeriod; /* set PWM cycle */// задание периода сброса счетчика. + LPC_PWM1->PCR = PWMENA1; //e. single edge control mode, PWM1 out enabled only включение выхода ШИМ 1. + LPC_PWM1->LER = LER0_EN ; //e. enable updating of register + LPC_PWM1->TCR = TCR_CNT_EN | TCR_PWM_EN; /* counter enable, PWM enable */ //включение счетчика и ШИМ + + NVIC_DisableIRQ(PWM1_IRQn);//запретить прерывание. + + + return ; } __irq void TIMER0_IRQHandler() { - int val = LPC_TIM0->IR; - LPC_TIM0->IR |= 3; + 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 - { + 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; +// LPC_GPIO2->FIOSET |= 0x00000040; // turn on the LED +// LPC_TIM0->IR |= 4; + return; + } + return; } /****************************************************************************** ** Function name: ExtLatch_Init ** -** Descriptions: Initialization of external latch +** Descriptions: Initialization of external latch ** ** parameters: None ** Returned value: None -** +** ******************************************************************************/ -void ExtLatch_Init() +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. �������� ������� �� ���������� + LPC_PINCON->PINSEL4 &= ~0xC000000; //e. использовать P2.13 как GPIO. + LPC_PINCON->PINSEL0 &= ~0x0C00000; //e. использовать P0.11 как GPIO. + LPC_GPIO0->FIODIR &= ~0x0000800; //e. использовать P0.11 вхлод. + LPC_GPIOINT->IO0IntEnR &= ~0x0000800; //e. отключить внутреннюю защелку. + LPC_GPIOINT->IO0IntClr |= 0x0000800; //e. сбросить запросы на прерывания - NVIC_EnableIRQ(EINT3_IRQn); // ��������� ����������. + NVIC_EnableIRQ(EINT3_IRQn); // разрешить прерывания. //+++++++ 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); + //e. TIMER0 enabled by default + LPC_SC->PCLKSEL0 &= ~(3<<2); //e. сбросить частоту таймера 0 + LPC_SC->PCLKSEL0 |= (3<<2); //e. установить частоту таймера 0 на CLK/8. + LPC_TIM0->PR = 0; //e. установить делитель частоты в 0. + LPC_TIM0->IR = 0x3F; //e. очистить флаги прерываний. + LPC_TIM0->MCR = 1 |(1<<3)|MR1_RESET |MR1_STOP; //e. сбросить и остановить таймер после совпадения MR1 и TC. + LPC_TIM0->CCR = 0; //e. содержимое таймера загружается при появлении переднего фронта защелки. + LPC_TIM0->CTCR = 0; //e. timer0 в режиме таймера. + + 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 @@ -376,24 +364,24 @@ ** ** parameters: None ** Returned value: None -** +** ******************************************************************************/ -void IntLatch_Init() +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_SC->PCONP |= (1<<23); //включит TIME3(таймер) + //e. by default timer3 mode is not counter (T3CTCR[1,0]=0) + + LPC_SC->PCLKSEL1 &= SYNC_CLCK4; // частота входного сигнала равна 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); //��������� ����������. + //e. by default CAP3.0 is connected to timer3 + LPC_TIM3->PR = 0; //e. установить предделитель таймера3 на 0. + LPC_TIM3->IR = 0x0001; //e. очистить флаги прерываний. + LPC_TIM3->MCR = MR0_RESET |MR0_INT_EN |MR0_NO_STOP; // установка флагов прерываний которые выполняются при совпадении таймера и МСR. + LPC_TIM3->CCR = 0x0001; //содержимое счетчика загружается по приходу переднего фронта защелки. + + NVIC_EnableIRQ(TIMER3_IRQn); //разрешить прерывания. } /***************************************************************************** ** Function name: WDTInit @@ -405,21 +393,20 @@ ** 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); + 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->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; + LPC_WDT->FEED = 0xAA; // Feeding sequence + LPC_WDT->FEED = 0x55; + + return 1; } /****************************************************************************** ** End Of File ******************************************************************************/ -