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- #include "fsl_lptmr.h"
- #ifndef FSL_COMPONENT_ID
- #define FSL_COMPONENT_ID "platform.drivers.lptmr"
- #endif
- #if defined(LPTMR_CLOCKS)
- static uint32_t LPTMR_GetInstance(LPTMR_Type *base);
- #endif
- #if defined(LPTMR_CLOCKS)
- static LPTMR_Type *const s_lptmrBases[] = LPTMR_BASE_PTRS;
- #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
- static const clock_ip_name_t s_lptmrClocks[] = LPTMR_CLOCKS;
- #if defined(LPTMR_PERIPH_CLOCKS)
- static const clock_ip_name_t s_lptmrPeriphClocks[] = LPTMR_PERIPH_CLOCKS;
- #endif
- #endif
- #endif
- #if defined(LPTMR_CLOCKS)
- static uint32_t LPTMR_GetInstance(LPTMR_Type *base)
- {
- uint32_t instance;
-
- for (instance = 0; instance < ARRAY_SIZE(s_lptmrBases); instance++)
- {
- if (s_lptmrBases[instance] == base)
- {
- break;
- }
- }
- assert(instance < ARRAY_SIZE(s_lptmrBases));
- return instance;
- }
- #endif
- void LPTMR_Init(LPTMR_Type *base, const lptmr_config_t *config)
- {
- assert(config);
- #if defined(LPTMR_CLOCKS)
- #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
-
- uint32_t instance = LPTMR_GetInstance(base);
-
- CLOCK_EnableClock(s_lptmrClocks[instance]);
- #if defined(LPTMR_PERIPH_CLOCKS)
- CLOCK_EnableClock(s_lptmrPeriphClocks[instance]);
- #endif
- #endif
- #endif
-
- base->CSR = (LPTMR_CSR_TMS(config->timerMode) | LPTMR_CSR_TFC(config->enableFreeRunning) |
- LPTMR_CSR_TPP(config->pinPolarity) | LPTMR_CSR_TPS(config->pinSelect));
-
- base->PSR = (LPTMR_PSR_PRESCALE(config->value) | LPTMR_PSR_PBYP(config->bypassPrescaler) |
- LPTMR_PSR_PCS(config->prescalerClockSource));
- }
- void LPTMR_Deinit(LPTMR_Type *base)
- {
-
- base->CSR &= ~LPTMR_CSR_TEN_MASK;
- #if defined(LPTMR_CLOCKS)
- #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
- uint32_t instance = LPTMR_GetInstance(base);
-
- CLOCK_DisableClock(s_lptmrClocks[instance]);
- #if defined(LPTMR_PERIPH_CLOCKS)
- CLOCK_DisableClock(s_lptmrPeriphClocks[instance]);
- #endif
- #endif
- #endif
- }
- void LPTMR_GetDefaultConfig(lptmr_config_t *config)
- {
- assert(config);
-
- config->timerMode = kLPTMR_TimerModeTimeCounter;
-
- config->pinSelect = kLPTMR_PinSelectInput_0;
-
- config->pinPolarity = kLPTMR_PinPolarityActiveHigh;
-
- config->enableFreeRunning = false;
-
- config->bypassPrescaler = true;
-
- config->prescalerClockSource = kLPTMR_PrescalerClock_1;
-
- config->value = kLPTMR_Prescale_Glitch_0;
- }
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