circuitpython/ports/teensy/hal_ftm.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdint.h>
#include <mk20dx128.h>
#include "teensy_hal.h"
void HAL_FTM_Base_Init(FTM_HandleTypeDef *hftm) {
/* Check the parameters */
FTM_TypeDef *FTMx = hftm->Instance;
assert_param(IS_FTM_INSTANCE(FTMx));
assert_param(IS_FTM_PRESCALERSHIFT(hftm->Init.PrescalerShift));
assert_param(IS_FTM_COUNTERMODE(hftm->Init.CounterMode));
assert_param(IS_FTM_PERIOD(hftm->Init.Period));
hftm->State = HAL_FTM_STATE_BUSY;
FTMx->MODE = FTM_MODE_WPDIS;
FTMx->SC = 0;
FTMx->MOD = hftm->Init.Period;
uint32_t sc = FTM_SC_PS(hftm->Init.PrescalerShift);
if (hftm->Init.CounterMode == FTM_COUNTERMODE_CENTER) {
sc |= FTM_SC_CPWMS;
}
FTMx->SC = sc;
hftm->State = HAL_FTM_STATE_READY;
}
void HAL_FTM_Base_Start(FTM_HandleTypeDef *hftm) {
FTM_TypeDef *FTMx = hftm->Instance;
assert_param(IS_FTM_INSTANCE(FTMx));
hftm->State = HAL_FTM_STATE_BUSY;
FTMx->CNT = 0;
FTMx->SC &= ~FTM_SC_CLKS(3);
FTMx->SC |= FTM_SC_CLKS(1);
hftm->State = HAL_FTM_STATE_READY;
}
void HAL_FTM_Base_Start_IT(FTM_HandleTypeDef *hftm) {
FTM_TypeDef *FTMx = hftm->Instance;
assert_param(IS_FTM_INSTANCE(FTMx));
hftm->State = HAL_FTM_STATE_BUSY;
FTMx->CNT = 0;
FTMx->SC |= FTM_SC_CLKS(1) | FTM_SC_TOIE;
hftm->State = HAL_FTM_STATE_READY;
}
void HAL_FTM_Base_DeInit(FTM_HandleTypeDef *hftm) {
assert_param(IS_FTM_INSTANCE(hftm->Instance));
hftm->State = HAL_FTM_STATE_BUSY;
__HAL_FTM_DISABLE_TOF_IT(hftm);
hftm->State = HAL_FTM_STATE_RESET;
}
void HAL_FTM_OC_Init(FTM_HandleTypeDef *hftm) {
HAL_FTM_Base_Init(hftm);
}
void HAL_FTM_OC_ConfigChannel(FTM_HandleTypeDef *hftm, FTM_OC_InitTypeDef *sConfig, uint32_t channel) {
FTM_TypeDef *FTMx = hftm->Instance;
assert_param(IS_FTM_INSTANCE(FTMx));
assert_param(IS_FTM_CHANNEL(channel));
assert_param(IS_FTM_OC_MODE(sConfig->OCMode));
assert_param(IS_FTM_OC_PULSE(sConfig->Pulse));
assert_param(IS_FTM_OC_POLARITY(sConfig->OCPolarity));
hftm->State = HAL_FTM_STATE_BUSY;
FTMx->channel[channel].CSC = sConfig->OCMode;
FTMx->channel[channel].CV = sConfig->Pulse;
if (sConfig->OCPolarity & 1) {
FTMx->POL |= (1 << channel);
} else {
FTMx->POL &= ~(1 << channel);
}
hftm->State = HAL_FTM_STATE_READY;
}
void HAL_FTM_OC_Start(FTM_HandleTypeDef *hftm, uint32_t channel) {
// Nothing else to do
}
void HAL_FTM_OC_Start_IT(FTM_HandleTypeDef *hftm, uint32_t channel) {
FTM_TypeDef *FTMx = hftm->Instance;
assert_param(IS_FTM_INSTANCE(FTMx));
FTMx->channel[channel].CSC |= FTM_CSC_CHIE;
}
void HAL_FTM_OC_DeInit(FTM_HandleTypeDef *hftm) {
HAL_FTM_Base_DeInit(hftm);
}
void HAL_FTM_PWM_Init(FTM_HandleTypeDef *hftm) {
HAL_FTM_Base_Init(hftm);
}
void HAL_FTM_PWM_ConfigChannel(FTM_HandleTypeDef *hftm, FTM_OC_InitTypeDef *sConfig, uint32_t channel) {
FTM_TypeDef *FTMx = hftm->Instance;
assert_param(IS_FTM_INSTANCE(FTMx));
assert_param(IS_FTM_CHANNEL(channel));
assert_param(IS_FTM_PWM_MODE(sConfig->OCMode));
assert_param(IS_FTM_OC_PULSE(sConfig->Pulse));
assert_param(IS_FTM_OC_POLARITY(sConfig->OCPolarity));
hftm->State = HAL_FTM_STATE_BUSY;
FTMx->channel[channel].CSC = sConfig->OCMode;
FTMx->channel[channel].CV = sConfig->Pulse;
if (sConfig->OCPolarity & 1) {
FTMx->POL |= (1 << channel);
} else {
FTMx->POL &= ~(1 << channel);
}
hftm->State = HAL_FTM_STATE_READY;
}
void HAL_FTM_PWM_Start(FTM_HandleTypeDef *hftm, uint32_t channel) {
// Nothing else to do
}
void HAL_FTM_PWM_Start_IT(FTM_HandleTypeDef *hftm, uint32_t channel) {
FTM_TypeDef *FTMx = hftm->Instance;
assert_param(IS_FTM_INSTANCE(FTMx));
FTMx->channel[channel].CSC |= FTM_CSC_CHIE;
}
void HAL_FTM_PWM_DeInit(FTM_HandleTypeDef *hftm) {
HAL_FTM_Base_DeInit(hftm);
}
void HAL_FTM_IC_Init(FTM_HandleTypeDef *hftm) {
HAL_FTM_Base_Init(hftm);
}
void HAL_FTM_IC_ConfigChannel(FTM_HandleTypeDef *hftm, FTM_IC_InitTypeDef *sConfig, uint32_t channel) {
FTM_TypeDef *FTMx = hftm->Instance;
assert_param(IS_FTM_INSTANCE(FTMx));
assert_param(IS_FTM_CHANNEL(channel));
assert_param(IS_FTM_IC_POLARITY(sConfig->ICPolarity));
hftm->State = HAL_FTM_STATE_BUSY;
FTMx->channel[channel].CSC = sConfig->ICPolarity;
hftm->State = HAL_FTM_STATE_READY;
}
void HAL_FTM_IC_Start(FTM_HandleTypeDef *hftm, uint32_t channel) {
// FTM_TypeDef *FTMx = hftm->Instance;
// assert_param(IS_FTM_INSTANCE(FTMx));
// Nothing else to do
}
void HAL_FTM_IC_Start_IT(FTM_HandleTypeDef *hftm, uint32_t channel) {
FTM_TypeDef *FTMx = hftm->Instance;
assert_param(IS_FTM_INSTANCE(FTMx));
FTMx->channel[channel].CSC |= FTM_CSC_CHIE;
}
void HAL_FTM_IC_DeInit(FTM_HandleTypeDef *hftm) {
HAL_FTM_Base_DeInit(hftm);
}