mirror of
https://github.com/jam422470459/EPD-nRF52-hema213.git
synced 2025-12-19 14:53:19 +08:00
move components to SDK dir
This commit is contained in:
Shuanglei Tao
@@ -0,0 +1,250 @@
|
||||
/**
|
||||
* Copyright (c) 2015 - 2017, Nordic Semiconductor ASA
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without modification,
|
||||
* are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form, except as embedded into a Nordic
|
||||
* Semiconductor ASA integrated circuit in a product or a software update for
|
||||
* such product, must reproduce the above copyright notice, this list of
|
||||
* conditions and the following disclaimer in the documentation and/or other
|
||||
* materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from this
|
||||
* software without specific prior written permission.
|
||||
*
|
||||
* 4. This software, with or without modification, must only be used with a
|
||||
* Nordic Semiconductor ASA integrated circuit.
|
||||
*
|
||||
* 5. Any software provided in binary form under this license must not be reverse
|
||||
* engineered, decompiled, modified and/or disassembled.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
|
||||
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
|
||||
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
|
||||
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
#include "sdk_common.h"
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#if NRF_MODULE_ENABLED(LOW_POWER_PWM)
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#include <string.h>
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#include "low_power_pwm.h"
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#include "nrf_gpio.h"
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||||
#include "app_timer.h"
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#include "nrf_assert.h"
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||||
|
||||
/**
|
||||
* @brief Function for turning on LEDs.
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*
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||||
* Sets the pin high state according to active_high parameter.
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||||
*
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* @param[in] p_pwm_instance Pointer to instance of low-power PWM.
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*/
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__STATIC_INLINE void led_on(low_power_pwm_t * p_pwm_instance)
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{
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if (p_pwm_instance->active_high)
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{
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nrf_gpio_port_out_set(p_pwm_instance->p_port, p_pwm_instance->bit_mask_toggle);
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}
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else
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{
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nrf_gpio_port_out_clear(p_pwm_instance->p_port, p_pwm_instance->bit_mask_toggle);
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}
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p_pwm_instance->led_is_on = true;
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}
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/**
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* @brief Function for turning off LEDs.
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*
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* Sets the pin low state according to active_high parameter.
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*
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* @param[in] p_pwm_instance Pointer to instance of low-power PWM.
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*/
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__STATIC_INLINE void led_off(low_power_pwm_t * p_pwm_instance)
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{
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if (p_pwm_instance->active_high)
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{
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nrf_gpio_port_out_clear(p_pwm_instance->p_port, p_pwm_instance->bit_mask_toggle);
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}
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else
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{
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nrf_gpio_port_out_set(p_pwm_instance->p_port, p_pwm_instance->bit_mask_toggle);
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}
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p_pwm_instance->led_is_on = false;
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}
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/**
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* @brief Timer event handler for PWM.
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*
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* @param[in] p_context General purpose pointer. Will be passed to the time-out handler
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* when the timer expires.
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*
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||||
*/
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||||
static void pwm_timeout_handler(void * p_context)
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{
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ret_code_t err_code;
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uint8_t duty_cycle;
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low_power_pwm_t * p_pwm_instance = (low_power_pwm_t *)p_context;
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p_pwm_instance->pwm_state = NRF_DRV_STATE_INITIALIZED;
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if (p_pwm_instance->evt_type == LOW_POWER_PWM_EVENT_PERIOD)
|
||||
{
|
||||
if (p_pwm_instance->handler)
|
||||
{
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||||
p_pwm_instance->handler(p_pwm_instance);
|
||||
}
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||||
|
||||
duty_cycle = p_pwm_instance->duty_cycle;
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||||
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if (duty_cycle == p_pwm_instance->period) // Process duty cycle 100%
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||||
{
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||||
led_on(p_pwm_instance);
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p_pwm_instance->timeout_ticks = p_pwm_instance->period + APP_TIMER_MIN_TIMEOUT_TICKS;
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||||
}
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else if (duty_cycle == 0) // Process duty cycle 0%
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||||
{
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led_off(p_pwm_instance);
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p_pwm_instance->timeout_ticks = p_pwm_instance->period + APP_TIMER_MIN_TIMEOUT_TICKS;
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}
|
||||
else // Process any other duty cycle than 0 or 100%
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{
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led_on(p_pwm_instance);
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p_pwm_instance->timeout_ticks = ((duty_cycle * p_pwm_instance->period)>>8) +
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APP_TIMER_MIN_TIMEOUT_TICKS;
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// setting next state
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p_pwm_instance->evt_type = LOW_POWER_PWM_EVENT_DUTY_CYCLE;
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}
|
||||
}
|
||||
else
|
||||
{
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led_off(p_pwm_instance);
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p_pwm_instance->evt_type = LOW_POWER_PWM_EVENT_PERIOD;
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p_pwm_instance->timeout_ticks = (((p_pwm_instance->period - p_pwm_instance->duty_cycle) * p_pwm_instance->period)>>8) +
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APP_TIMER_MIN_TIMEOUT_TICKS;
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}
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||||
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if (p_pwm_instance->pwm_state == NRF_DRV_STATE_INITIALIZED)
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{
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p_pwm_instance->pwm_state = NRF_DRV_STATE_POWERED_ON;
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err_code = app_timer_start(*p_pwm_instance->p_timer_id, p_pwm_instance->timeout_ticks, p_pwm_instance);
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APP_ERROR_CHECK(err_code);
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||||
}
|
||||
}
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||||
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||||
|
||||
ret_code_t low_power_pwm_init(low_power_pwm_t * p_pwm_instance, low_power_pwm_config_t const * p_pwm_config, app_timer_timeout_handler_t handler)
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{
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||||
ASSERT(p_pwm_instance->pwm_state == NRF_DRV_STATE_UNINITIALIZED);
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ASSERT(p_pwm_config->bit_mask != 0);
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ASSERT(p_pwm_config->p_port != NULL);
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||||
ASSERT(p_pwm_config->period != 0);
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||||
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||||
ret_code_t err_code;
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||||
uint32_t bit_mask;
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uint32_t pin_number = 0;
|
||||
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p_pwm_instance->handler = handler;
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bit_mask = p_pwm_config->bit_mask;
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p_pwm_instance->active_high = p_pwm_config->active_high;
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p_pwm_instance->bit_mask = p_pwm_config->bit_mask;
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p_pwm_instance->bit_mask_toggle = p_pwm_config->bit_mask;
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||||
p_pwm_instance->p_port = p_pwm_config->p_port;
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p_pwm_instance->period = p_pwm_config->period;
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||||
p_pwm_instance->p_timer_id = p_pwm_config->p_timer_id;
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||||
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||||
err_code = app_timer_create(p_pwm_instance->p_timer_id, APP_TIMER_MODE_SINGLE_SHOT, pwm_timeout_handler);
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||||
|
||||
if (err_code != NRF_SUCCESS)
|
||||
{
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||||
return err_code;
|
||||
}
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||||
|
||||
while (bit_mask)
|
||||
{
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||||
if (bit_mask & 0x1UL)
|
||||
{
|
||||
nrf_gpio_cfg_output(pin_number);
|
||||
}
|
||||
|
||||
pin_number++;
|
||||
bit_mask >>= 1UL;
|
||||
}
|
||||
|
||||
led_off(p_pwm_instance);
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p_pwm_instance->pwm_state = NRF_DRV_STATE_INITIALIZED;
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||||
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||||
return NRF_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
ret_code_t low_power_pwm_start(low_power_pwm_t * p_pwm_instance,
|
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uint32_t leds_pin_bit_mask)
|
||||
{
|
||||
ASSERT(p_pwm_instance->pwm_state != NRF_DRV_STATE_UNINITIALIZED);
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ASSERT(((p_pwm_instance->bit_mask) & leds_pin_bit_mask) != 0x00);
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|
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p_pwm_instance->pwm_state = NRF_DRV_STATE_POWERED_ON;
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p_pwm_instance->bit_mask_toggle = leds_pin_bit_mask;
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led_off(p_pwm_instance);
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p_pwm_instance->bit_mask |= leds_pin_bit_mask;
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p_pwm_instance->evt_type = LOW_POWER_PWM_EVENT_PERIOD;
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pwm_timeout_handler(p_pwm_instance);
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return NRF_SUCCESS;
|
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}
|
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|
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ret_code_t low_power_pwm_stop(low_power_pwm_t * p_pwm_instance)
|
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{
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ASSERT(p_pwm_instance->pwm_state == NRF_DRV_STATE_POWERED_ON);
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ret_code_t err_code;
|
||||
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err_code = app_timer_stop(*p_pwm_instance->p_timer_id);
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led_off(p_pwm_instance);
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|
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if (err_code != NRF_SUCCESS)
|
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{
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return err_code;
|
||||
}
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||||
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p_pwm_instance->pwm_state = NRF_DRV_STATE_INITIALIZED;
|
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|
||||
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return NRF_SUCCESS;
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}
|
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|
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ret_code_t low_power_pwm_duty_set(low_power_pwm_t * p_pwm_instance, uint8_t duty_cycle)
|
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{
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if ( p_pwm_instance->period < duty_cycle)
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{
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return NRF_ERROR_INVALID_PARAM;
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}
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p_pwm_instance->duty_cycle = duty_cycle;
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return NRF_SUCCESS;
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}
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#endif //NRF_MODULE_ENABLED(LOW_POWER_PWM)
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@@ -0,0 +1,212 @@
|
||||
/**
|
||||
* Copyright (c) 2015 - 2017, Nordic Semiconductor ASA
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without modification,
|
||||
* are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form, except as embedded into a Nordic
|
||||
* Semiconductor ASA integrated circuit in a product or a software update for
|
||||
* such product, must reproduce the above copyright notice, this list of
|
||||
* conditions and the following disclaimer in the documentation and/or other
|
||||
* materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from this
|
||||
* software without specific prior written permission.
|
||||
*
|
||||
* 4. This software, with or without modification, must only be used with a
|
||||
* Nordic Semiconductor ASA integrated circuit.
|
||||
*
|
||||
* 5. Any software provided in binary form under this license must not be reverse
|
||||
* engineered, decompiled, modified and/or disassembled.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
|
||||
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
|
||||
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
|
||||
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/** @file
|
||||
*
|
||||
* @defgroup low_power_pwm Low-power PWM
|
||||
* @{
|
||||
* @ingroup app_common
|
||||
*
|
||||
* @brief Module for generating a low-power pulse-width modulated output signal.
|
||||
*
|
||||
* This module provides a low-power PWM implementation using app_timers and GPIO.
|
||||
*
|
||||
* Each low-power PWM instance utilizes one app_timer. This means it runs on RTC
|
||||
* and does not require HFCLK to be running. There can be any number of output
|
||||
* channels per instance.
|
||||
*/
|
||||
|
||||
#ifndef LOW_POWER_PWM_H__
|
||||
#define LOW_POWER_PWM_H__
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include "app_timer.h"
|
||||
#include "nrf_drv_common.h"
|
||||
#include "sdk_errors.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Event types.
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
LOW_POWER_PWM_EVENT_PERIOD = 0,
|
||||
LOW_POWER_PWM_EVENT_DUTY_CYCLE
|
||||
}low_power_pwm_evt_type_t;
|
||||
|
||||
/**@brief Application time-out handler type. */
|
||||
typedef void (*low_power_pwm_timeout_user)(void * p_context, low_power_pwm_evt_type_t evt_type);
|
||||
|
||||
/**
|
||||
* @brief Structure holding the initialization parameters.
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
bool active_high; /**< Activate negative polarity. */
|
||||
uint8_t period; /**< Width of the low_power_pwm period. */
|
||||
NRF_GPIO_Type * p_port; /**< Port used to work on selected mask. */
|
||||
uint32_t bit_mask; /**< Pins to be initialized. */
|
||||
app_timer_id_t const * p_timer_id; /**< Pointer to the timer ID of low_power_pwm. */
|
||||
} low_power_pwm_config_t;
|
||||
|
||||
|
||||
/**
|
||||
* @name Default settings
|
||||
* @{
|
||||
*
|
||||
* @brief Default parameters for the @ref low_power_pwm_config_t structure.
|
||||
*
|
||||
*/
|
||||
#define LOW_POWER_PWM_CONFIG_ACTIVE_HIGH false
|
||||
#define LOW_POWER_PWM_CONFIG_PERIOD UINT8_MAX
|
||||
#define LOW_POWER_PWM_CONFIG_PORT NRF_GPIO
|
||||
#define LOW_POWER_PWM_CONFIG_BIT_MASK(mask) (mask)
|
||||
/** @} */
|
||||
|
||||
/**
|
||||
* @brief Low-power PWM default configuration.
|
||||
*/
|
||||
#define LOW_POWER_PWM_DEFAULT_CONFIG(mask) \
|
||||
{ \
|
||||
.active_high = LOW_POWER_PWM_CONFIG_ACTIVE_HIGH , \
|
||||
.period = LOW_POWER_PWM_CONFIG_PERIOD , \
|
||||
.p_port = LOW_POWER_PWM_CONFIG_PORT, \
|
||||
.bit_mask = LOW_POWER_PWM_CONFIG_BIT_MASK(mask) \
|
||||
}
|
||||
/**
|
||||
* @cond (NODOX)
|
||||
* @defgroup low_power_pwm_internal Auxiliary internal types declarations
|
||||
* @brief Module for internal usage inside the library only.
|
||||
* @details These definitions are available to the user, but they should not
|
||||
* be accessed directly. Use @ref low_power_pwm_duty_set instead.
|
||||
* @{
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief Structure holding parameters of a given low-power PWM instance.
|
||||
*/
|
||||
struct low_power_pwm_s
|
||||
{
|
||||
bool active_high; /**< Activate negative polarity. */
|
||||
bool led_is_on; /**< Indicates the current state of the LED. */
|
||||
uint8_t period; /**< Width of the low_power_pwm period. */
|
||||
uint8_t duty_cycle; /**< Width of high pulse. */
|
||||
nrf_drv_state_t pwm_state; /**< Indicates the current state of the PWM instance. */
|
||||
uint32_t bit_mask; /**< Pins to be initialized. */
|
||||
uint32_t bit_mask_toggle; /**< Pins to be toggled. */
|
||||
uint32_t timeout_ticks; /**< Value to start the next app_timer. */
|
||||
low_power_pwm_evt_type_t evt_type; /**< Slope that triggered time-out. */
|
||||
app_timer_timeout_handler_t handler; /**< User handler to be called in the time-out handler. */
|
||||
app_timer_id_t const * p_timer_id; /**< Pointer to the timer ID of low_power_pwm. */
|
||||
NRF_GPIO_Type * p_port; /**< Port used with pin bit mask. */
|
||||
};
|
||||
|
||||
/** @}
|
||||
* @endcond
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief Internal structure holding parameters of a low-power PWM instance.
|
||||
*/
|
||||
typedef struct low_power_pwm_s low_power_pwm_t;
|
||||
|
||||
|
||||
/**
|
||||
* @brief Function for initializing a low-power PWM instance.
|
||||
*
|
||||
* @param[in] p_pwm_instance Pointer to the instance to be started.
|
||||
* @param[in] p_pwm_config Pointer to the configuration structure.
|
||||
* @param[in] handler User function to be called in case of time-out.
|
||||
*
|
||||
* @return Values returned by @ref app_timer_create.
|
||||
*/
|
||||
ret_code_t low_power_pwm_init(low_power_pwm_t * p_pwm_instance,
|
||||
low_power_pwm_config_t const * p_pwm_config,
|
||||
app_timer_timeout_handler_t handler);
|
||||
|
||||
|
||||
/**
|
||||
* @brief Function for starting a low-power PWM instance.
|
||||
*
|
||||
* @param[in] p_pwm_instance Pointer to the instance to be started.
|
||||
* @param[in] leds_pin_bit_mask Bit mask of pins to be started.
|
||||
*
|
||||
* @return Values returned by @ref app_timer_start.
|
||||
*/
|
||||
ret_code_t low_power_pwm_start(low_power_pwm_t * p_pwm_instance,
|
||||
uint32_t leds_pin_bit_mask);
|
||||
|
||||
|
||||
/**
|
||||
* @brief Function for stopping a low-power PWM instance.
|
||||
*
|
||||
* @param[in] p_pwm_instance Pointer to the instance to be stopped.
|
||||
*
|
||||
* @return Values returned by @ref app_timer_stop.
|
||||
*/
|
||||
ret_code_t low_power_pwm_stop(low_power_pwm_t * p_pwm_instance);
|
||||
|
||||
|
||||
/**
|
||||
* @brief Function for setting a new high pulse width for a given instance.
|
||||
*
|
||||
* This function can be called from the timer handler.
|
||||
*
|
||||
* @param[in] p_pwm_instance Pointer to the instance to be changed.
|
||||
* @param[in] duty_cycle New high pulse width. 0 means that the LED is always off. 255 means that it is always on.
|
||||
*
|
||||
* @retval NRF_SUCCESS If the function completed successfully.
|
||||
* @retval NRF_ERROR_INVALID_PARAM If the function returned an error because of invalid parameters.
|
||||
*/
|
||||
ret_code_t low_power_pwm_duty_set(low_power_pwm_t * p_pwm_instance, uint8_t duty_cycle);
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif // LOW_POWER_PWM_H__
|
||||
|
||||
/** @} */
|
||||
Reference in New Issue
Block a user