• Set timer period for channel 0 as 1 second;
• Enable channel0 interrupt;
• Starts the timer counting afer all configuration;
• In the channel interrupt rountine, clear the channel flag every 1 second.
The following pseudo-code matches the described setup above:
CLOCK_EnableClock(LPIT0);
LPIT0_MCR |= LPIT_MCR_SW_RST_MASK;
LPIT0_MCR &= ~LPIT_MCR_SW_RST_MASK;
LPIT0_MCR |= (LPIT_MCR_DBG_EN(1) | LPIT_MCR_DOZE_EN(1) | LPIT_MCR_M_CEN_MASK);
LPIT0_TCTRL0 |= LPIT_TCTRL_MODE(0);
LPIT0_TVAL0 = ONE_SECOND_VALUE;
LPIT0_MIER |= LPIT_MIER_TIE0_MASK;
NVIC_EnableIRQ(LPIT0_IRQ);
LPIT0_SETTEN |= LPIT_SETTEN_SET_T_EN_0_MASK;
42.6.2 LPIT/ADC Trigger
The LPIT could be used as an alternate ADC hardware trigger source, whose
implementation is via TRGMUX. Each LPIT channel supports one pre-trigger and one
trigger. The LPIT channels are implemented based on independent counters. When used
as ADC trigger source, the channel outputs are ORed together to generate the ADC
hardware trigger. The following diagram shows an example of using LPIT triggering
ADC0.
Usage Guide
Kinetis KE1xF Sub-Family Reference Manual, Rev. 4, 06/2019
1140
NXP Semiconductors
Содержание KE1xF Series
Страница 2: ...Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 2 NXP Semiconductors...
Страница 60: ...SysTick Clock Configuration Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 60 NXP Semiconductors...
Страница 114: ...Initialization application information Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 114 NXP Semiconductors...
Страница 138: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 138 NXP Semiconductors...
Страница 320: ...Private Peripheral Bus PPB memory map Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 320 NXP Semiconductors...
Страница 342: ...Functional Description Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 342 NXP Semiconductors...
Страница 360: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 360 NXP Semiconductors...
Страница 490: ...Interrupts Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 490 NXP Semiconductors...
Страница 550: ...Memory map and register definition Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 550 NXP Semiconductors...
Страница 562: ...Boot Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 562 NXP Semiconductors...
Страница 662: ...Power supply supervisor Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 662 NXP Semiconductors...
Страница 694: ...On chip resource access control mechanism Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 694 NXP Semiconductors...
Страница 706: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 706 NXP Semiconductors...
Страница 724: ...Application Information Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 724 NXP Semiconductors...
Страница 736: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 736 NXP Semiconductors...
Страница 750: ...Debug and Security Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 750 NXP Semiconductors...
Страница 798: ...Functional description Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 798 NXP Semiconductors...
Страница 808: ...Functional description Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 808 NXP Semiconductors...
Страница 866: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 866 NXP Semiconductors...
Страница 1164: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 1164 NXP Semiconductors...
Страница 1178: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 1178 NXP Semiconductors...
Страница 1380: ...Usage Guide Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 1380 NXP Semiconductors...
Страница 1472: ...Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 1472 NXP Semiconductors...
Страница 1482: ...Kinetis KE1xF Sub Family Reference Manual Rev 4 06 2019 1482 NXP Semiconductors...