/**
* \brief Initializes config with predefined default values.
*
* This function will initialize a given TCC configuration structure to
* a set of known default values. This function should be called on
* any new instance of the configuration structures before being
* modified by the user application.
*
* The default configuration is as follows:
* \li Don't run in standby
* \li The base timer/counter configurations:
* \li GCLK generator 0 (GCLK main) clock source
* \li No prescaler
* \li GCLK reload action
* \li Count upward
* \li Don't perform one-shot operations
* \li Counter starts on 0
* \li Period/top value set to maximum of counting
* \li The match/capture configurations:
* \li All Capture compare channel value set to 0
* \li No capture enabled (all channels use compare function)
* \li Normal frequency wave generation
* \li Waveform generation polarity set to 0
* \li Don't perform ramp on waveform
* \li The waveform extension configurations:
* \li No inversion of waveform output
* \li No channel output enabled
* \li No PWM pin output enabled
* \li Pin and Mux configuration not set
*
* \param[out] config Pointer to a TCC module configuration structure to set
* \param[in] hw Pointer to the TCC hardware module
*
*/
void tcc_get_config_defaults(
struct tcc_config *const config,
Tcc *const hw)
{
/* TCC instance index */
uint8_t module_index = _tcc_get_inst_index(hw);
/* Base counter defaults */
config->counter.count = 0;
config->counter.period = _tcc_maxs[module_index];
config->counter.clock_source = GCLK_GENERATOR_0;
config->counter.clock_prescaler = TCC_CLOCK_PRESCALER_DIV1;
config->counter.reload_action = TCC_RELOAD_ACTION_GCLK;
config->counter.direction = TCC_COUNT_DIRECTION_UP;
config->counter.oneshot = false;
/* Match/Capture defaults */
# define _TCC_CHANNEL_MATCH_VALUE_INIT(n, value) \
config->compare.match[n] = value;
MREPEAT(TCC_NUM_CHANNELS,
_TCC_CHANNEL_MATCH_VALUE_INIT, 0)
# undef _TCC_CHANNEL_MATCH_VALUE_INIT
# define _TCC_CHANNEL_WAVE_POLARITY_INIT(n, value) \
config->compare.wave_polarity[n] = value;
MREPEAT(TCC_NUM_CHANNELS,
_TCC_CHANNEL_WAVE_POLARITY_INIT, TCC_WAVE_POLARITY_0)
# undef _TCC_CHANNEL_WAVE_POLARITY_INIT
config->compare.wave_generation = TCC_WAVE_GENERATION_NORMAL_FREQ;
config->compare.wave_ramp = TCC_RAMP_RAMP1;
# define _TCC_CHANNEL_FUNCTION_INIT(n, value) \
config->compare.channel_function[n] = value;
MREPEAT(TCC_NUM_CHANNELS,
_TCC_CHANNEL_FUNCTION_INIT, TCC_CHANNEL_FUNCTION_COMPARE)
# undef _TCC_CHANNEL_FUNCTION_INIT
# define _TCC_OUT_INVERT_INIT(n, value) \
config->wave_ext.invert[n] = value;
MREPEAT(TCC_NUM_WAVE_OUTPUTS,
_TCC_OUT_INVERT_INIT, false)
# undef _TCC_OUT_INVERT_INIT
#define _TCC_CHANNEL_OUT_PIN_INIT(n, dummy) \
config->pins.enable_wave_out_pin[n] = false;\
config->pins.wave_out_pin[TCC_WAVE_OUTPUT_##n] = 0; \
config->pins.wave_out_pin_mux[TCC_WAVE_OUTPUT_##n] = 0;
MREPEAT(TCC_NUM_WAVE_OUTPUTS,
_TCC_CHANNEL_OUT_PIN_INIT, 0)
#undef _TCC_CHANNEL_OUT_PIN_INIT
config->run_in_standby = false;
}
/**
* \internal Get the interrupt vector for the given device instance
*
* \param[in] The TCC module instance number
*
* \return Interrupt vector for of the given TCC module instance.
*/
static enum system_interrupt_vector _tcc_interrupt_get_interrupt_vector(
uint32_t inst_num)
{
static uint8_t tcc_interrupt_vectors[TCC_INST_NUM] = {
MREPEAT(TCC_INST_NUM, _TCC_INTERRUPT_VECT_NUM, 0)
};
return (enum system_interrupt_vector)tcc_interrupt_vectors[inst_num];
}
/**
* \brief Initializes config with predefined default values.
*
* This function will initialize a given TCC configuration structure to
* a set of known default values. This function should be called on
* any new instance of the configuration structures before being
* modified by the user application.
*
* The default configuration is as follows:
* \li Don't run in standby
* \li When setting top,compare or pattern by API, do double buffering write
* \li The base timer/counter configurations:
* - GCLK generator 0 clock source
* - No prescaler
* - GCLK reload action
* - Count upward
* - Don't perform one-shot operations
* - Counter starts on 0
* - Period/top value set to maximum
* \li The match/capture configurations:
* - All Capture compare channel value set to 0
* - No capture enabled (all channels use compare function)
* - Normal frequency wave generation
* - Waveform generation polarity set to 0
* - Don't perform ramp on waveform
* \li The waveform extension configurations:
* - No recoverable fault is enabled, fault actions are disabled, filter
* is set to 0
* - No non-recoverable fault state output is enabled and filter is 0
* - No inversion of waveform output
* \li No channel output enabled
* \li No PWM pin output enabled
* \li Pin and MUX configuration not set
*
* \param[out] config Pointer to a TCC module configuration structure to set
* \param[in] hw Pointer to the TCC hardware module
*
*/
void tcc_get_config_defaults(
struct tcc_config *const config,
Tcc *const hw)
{
/* TCC instance index */
uint8_t module_index = _tcc_get_inst_index(hw);
/* Base counter defaults */
config->counter.count = 0;
config->counter.period = _tcc_maxs[module_index];
config->counter.clock_source = GCLK_GENERATOR_0;
config->counter.clock_prescaler = TCC_CLOCK_PRESCALER_DIV1;
config->counter.reload_action = TCC_RELOAD_ACTION_GCLK;
config->counter.direction = TCC_COUNT_DIRECTION_UP;
config->counter.oneshot = false;
/* Match/Capture defaults */
# define _TCC_CHANNEL_MATCH_VALUE_INIT(n, value) \
config->compare.match[n] = value;
MREPEAT(TCC_NUM_CHANNELS,
_TCC_CHANNEL_MATCH_VALUE_INIT, 0)
# undef _TCC_CHANNEL_MATCH_VALUE_INIT
/* Wave polarity defaults */
# define _TCC_CHANNEL_WAVE_POLARITY_INIT(n, value) \
config->compare.wave_polarity[n] = value;
MREPEAT(TCC_NUM_CHANNELS,
_TCC_CHANNEL_WAVE_POLARITY_INIT, TCC_WAVE_POLARITY_0)
# undef _TCC_CHANNEL_WAVE_POLARITY_INIT
config->compare.wave_generation = TCC_WAVE_GENERATION_NORMAL_FREQ;
config->compare.wave_ramp = TCC_RAMP_RAMP1;
# define _TCC_CHANNEL_FUNCTION_INIT(n, value) \
config->compare.channel_function[n] = value;
MREPEAT(TCC_NUM_CHANNELS,
_TCC_CHANNEL_FUNCTION_INIT, TCC_CHANNEL_FUNCTION_COMPARE)
# undef _TCC_CHANNEL_FUNCTION_INIT
/* Recoverable fault defaults */
# define _TCC_FAULT_FUNCTION_INIT(n, dummy) \
config->wave_ext.recoverable_fault[n].filter_value = 0; \
config->wave_ext.recoverable_fault[n].blanking_cycles = 0; \
config->wave_ext.recoverable_fault[n].restart = false; \
config->wave_ext.recoverable_fault[n].keep = false; \
config->wave_ext.recoverable_fault[n].qualification = false; \
config->wave_ext.recoverable_fault[n].source = TCC_FAULT_SOURCE_DISABLE; \
config->wave_ext.recoverable_fault[n].blanking = TCC_FAULT_BLANKING_DISABLE; \
config->wave_ext.recoverable_fault[n].halt_action = TCC_FAULT_HALT_ACTION_DISABLE; \
config->wave_ext.recoverable_fault[n].capture_action = TCC_FAULT_CAPTURE_DISABLE; \
config->wave_ext.recoverable_fault[n].capture_channel = TCC_FAULT_CAPTURE_CHANNEL_0;
MREPEAT(TCC_NUM_FAULTS, _TCC_FAULT_FUNCTION_INIT, 0)
# undef _TCC_FAULT_FUNCTION_INIT
/* Non-recoverable fault defaults */
# define _TCC_NRF_FUNCTION_INIT(n, dummy) \
config->wave_ext.non_recoverable_fault[n].filter_value = 0; \
config->wave_ext.non_recoverable_fault[n].output = TCC_FAULT_STATE_OUTPUT_OFF;
MREPEAT(TCC_NUM_WAVE_OUTPUTS, _TCC_NRF_FUNCTION_INIT, 0)
# undef _TCC_NRF_FUNCTION_INIT
/* Output inversion defaults */
# define _TCC_OUT_INVERT_INIT(n, value) \
config->wave_ext.invert[n] = value;
MREPEAT(TCC_NUM_WAVE_OUTPUTS, _TCC_OUT_INVERT_INIT, false)
# undef _TCC_OUT_INVERT_INIT
# define _TCC_CHANNEL_OUT_PIN_INIT(n, dummy) \
config->pins.enable_wave_out_pin[n] = false;\
config->pins.wave_out_pin[TCC_WAVE_OUTPUT_##n] = 0; \
config->pins.wave_out_pin_mux[TCC_WAVE_OUTPUT_##n] = 0;
MREPEAT(TCC_NUM_WAVE_OUTPUTS, _TCC_CHANNEL_OUT_PIN_INIT, 0)
# undef _TCC_CHANNEL_OUT_PIN_INIT
config->double_buffering_enabled = true;
config->run_in_standby = false;
}
void *_tcc_instances[TCC_INST_NUM];
void _tcc_interrupt_handler(uint8_t module_index);
const uint32_t _tcc_intflag[TCC_CALLBACK_N] = {
TCC_INTFLAG_OVF,
TCC_INTFLAG_TRG,
TCC_INTFLAG_CNT,
TCC_INTFLAG_ERR,
TCC_INTFLAG_FAULTA,
TCC_INTFLAG_FAULTB,
TCC_INTFLAG_FAULT0,
TCC_INTFLAG_FAULT1,
#define _TCC_INTFLAG_MC(n,dummy) TCC_INTFLAG_MC##n,
/* TCC_INTFLAG_MC0 ~ ... */
MREPEAT(TCC_NUM_CHANNELS, _TCC_INTFLAG_MC, 0)
#undef _TCC_INTFLAG_MC
};
# define _TCC_INTERRUPT_VECT_NUM(n, unused) \
SYSTEM_INTERRUPT_MODULE_TCC##n,
/**
* \internal Get the interrupt vector for the given device instance
*
* \param[in] The TCC module instance number
*
* \return Interrupt vector for of the given TCC module instance.
*/
static enum system_interrupt_vector _tcc_interrupt_get_interrupt_vector(
uint32_t inst_num)
{
