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adding hardwaret timer and fixing PWM pins errors (openwch#71)
* add yield(default weak) * 1.add hardware timer 2.fix PWM pins error
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/* | ||
Copyright (c) 2017 Daniel Fekete | ||
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. | ||
Copyright (c) 2019 STMicroelectronics | ||
Modified to support Arduino_Core_STM32 | ||
Modified by TempersLee to support Adruino_Core_CH32 | ||
*/ | ||
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/* Define to prevent recursive inclusion -------------------------------------*/ | ||
#ifndef HARDWARETIMER_H_ | ||
#define HARDWARETIMER_H_ | ||
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/* Includes ------------------------------------------------------------------*/ | ||
#include "timer.h" | ||
#include "ch32yyxx_tim.h" | ||
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#if defined(TIM_MODULE_ENABLED) && !defined(TIM_MODULE_ONLY) | ||
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#define TIMER_CHANNELS 4 // channel5 and channel 6 are not considered here has they don't have gpio output and they don't have interrupt | ||
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#define TIM_CHANNEL_CH1 TIM_CC1E /*!< Timer input/output channel 1 */ | ||
#define TIM_CHANNEL_CH1N TIM_CC1NE /*!< Timer complementary output channel 1 */ | ||
#define TIM_CHANNEL_CH2 TIM_CC2E /*!< Timer input/output channel 2 */ | ||
#define TIM_CHANNEL_CH2N TIM_CC2NE /*!< Timer complementary output channel 2 */ | ||
#define TIM_CHANNEL_CH3 TIM_CC3E /*!< Timer input/output channel 3 */ | ||
#define TIM_CHANNEL_CH3N TIM_CC3NE /*!< Timer complementary output channel 3 */ | ||
#define TIM_CHANNEL_CH4 TIM_CC4E /*!< Timer input/output channel 4 */ | ||
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typedef enum { | ||
TIMER_DISABLED, // == TIM_OCMODE_TIMING no output, useful for only-interrupt | ||
// Output Compare | ||
TIMER_OUTPUT_COMPARE, // == Obsolete, use TIMER_DISABLED instead. Kept for compatibility reason | ||
TIMER_OUTPUT_COMPARE_ACTIVE, // == TIM_OCMODE_ACTIVE pin is set high when counter == channel compare | ||
TIMER_OUTPUT_COMPARE_INACTIVE, // == TIM_OCMODE_INACTIVE pin is set low when counter == channel compare | ||
TIMER_OUTPUT_COMPARE_TOGGLE, // == TIM_OCMODE_TOGGLE pin toggles when counter == channel compare | ||
TIMER_OUTPUT_COMPARE_PWM1, // == TIM_OCMODE_PWM1 pin high when counter < channel compare, low otherwise | ||
TIMER_OUTPUT_COMPARE_PWM2, // == TIM_OCMODE_PWM2 pin low when counter < channel compare, high otherwise | ||
TIMER_OUTPUT_COMPARE_FORCED_ACTIVE, // == TIM_OCMODE_FORCED_ACTIVE pin always high | ||
TIMER_OUTPUT_COMPARE_FORCED_INACTIVE, // == TIM_OCMODE_FORCED_INACTIVE pin always low | ||
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//Input capture | ||
TIMER_INPUT_CAPTURE_RISING, // == TIM_INPUTCHANNELPOLARITY_RISING | ||
TIMER_INPUT_CAPTURE_FALLING, // == TIM_INPUTCHANNELPOLARITY_FALLING | ||
TIMER_INPUT_CAPTURE_BOTHEDGE, // == TIM_INPUTCHANNELPOLARITY_BOTHEDGE | ||
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// Used 2 channels for a single pin. One channel in TIM_INPUTCHANNELPOLARITY_RISING another channel in TIM_INPUTCHANNELPOLARITY_FALLING. | ||
// Channels must be used by pair: CH1 with CH2, or CH3 with CH4 | ||
// This mode is very useful for Frequency and Dutycycle measurement | ||
TIMER_INPUT_FREQ_DUTY_MEASUREMENT, | ||
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TIMER_NOT_USED = 0xFFFF // This must be the last item of this enum | ||
} TimerModes_t; | ||
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typedef enum { | ||
TICK_FORMAT, // default | ||
MICROSEC_FORMAT, | ||
HERTZ_FORMAT, | ||
} TimerFormat_t; | ||
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typedef enum { | ||
RESOLUTION_1B_COMPARE_FORMAT = 1, // used for Dutycycle: [0 .. 1] | ||
RESOLUTION_2B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 3] | ||
RESOLUTION_3B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 7] | ||
RESOLUTION_4B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 15] | ||
RESOLUTION_5B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 31] | ||
RESOLUTION_6B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 63] | ||
RESOLUTION_7B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 127] | ||
RESOLUTION_8B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 255] | ||
RESOLUTION_9B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 511] | ||
RESOLUTION_10B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 1023] | ||
RESOLUTION_11B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 2047] | ||
RESOLUTION_12B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 4095] | ||
RESOLUTION_13B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 8191] | ||
RESOLUTION_14B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 16383] | ||
RESOLUTION_15B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 32767] | ||
RESOLUTION_16B_COMPARE_FORMAT, // used for Dutycycle: [0 .. 65535] | ||
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TICK_COMPARE_FORMAT = 0x80, // default | ||
MICROSEC_COMPARE_FORMAT, | ||
HERTZ_COMPARE_FORMAT, | ||
PERCENT_COMPARE_FORMAT, // used for Dutycycle | ||
} TimerCompareFormat_t; | ||
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#ifdef __cplusplus | ||
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#include <functional> | ||
using callback_function_t = std::function<void(void)>; | ||
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/* Class --------------------------------------------------------*/ | ||
class HardwareTimer { | ||
public: | ||
HardwareTimer(); | ||
HardwareTimer(TIM_TypeDef *instance); | ||
~HardwareTimer(); // destructor | ||
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void setup(TIM_TypeDef *instance); // Setup, only needed if no instance was passed to the constructor | ||
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void pause(void); // Pause counter and all output channels | ||
void pauseChannel(uint32_t channel); // Timer is still running but channel (output and interrupt) is disabled | ||
void resume(void); // Resume counter and all output channels | ||
void resumeChannel(uint32_t channel); // Resume only one channel | ||
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void setPrescaleFactor(uint32_t prescaler); // set prescaler register (which is factor value - 1) | ||
uint32_t getPrescaleFactor(); | ||
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void setOverflow(uint32_t val, TimerFormat_t format = TICK_FORMAT); // set AutoReload register depending on format provided | ||
uint32_t getOverflow(TimerFormat_t format = TICK_FORMAT); // return overflow depending on format provided | ||
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void setPWM(uint32_t channel, PinName pin, uint32_t frequency, uint32_t dutycycle, callback_function_t PeriodCallback = nullptr, callback_function_t CompareCallback = nullptr); // Set all in one command freq in HZ, Duty in percentage. Including both interrupt. | ||
void setPWM(uint32_t channel, uint32_t pin, uint32_t frequency, uint32_t dutycycle, callback_function_t PeriodCallback = nullptr, callback_function_t CompareCallback = nullptr); | ||
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void setCount(uint32_t val, TimerFormat_t format = TICK_FORMAT); // set timer counter to value 'val' depending on format provided | ||
uint32_t getCount(TimerFormat_t format = TICK_FORMAT); // return current counter value of timer depending on format provided | ||
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void setMode(uint32_t channel, TimerModes_t mode, PinName pin = NC); // Configure timer channel with specified mode on specified pin if available | ||
void setMode(uint32_t channel, TimerModes_t mode, uint32_t pin); | ||
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TimerModes_t getMode(uint32_t channel); // Retrieve configured mode | ||
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void setPreloadEnable(bool value); // Configure overflow preload enable setting | ||
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uint32_t getCaptureCompare(uint32_t channel, TimerCompareFormat_t format = TICK_COMPARE_FORMAT); // return Capture/Compare register value of specified channel depending on format provided | ||
void setCaptureCompare(uint32_t channel, uint32_t compare, TimerCompareFormat_t format = TICK_COMPARE_FORMAT); // set Compare register value of specified channel depending on format provided | ||
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void setInterruptPriority(uint32_t preemptPriority, uint32_t subPriority); // set interrupt priority | ||
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//Add interrupt to period update | ||
void attachInterrupt(callback_function_t callback); // Attach interrupt callback which will be called upon update event (timer rollover) | ||
void detachInterrupt(); // remove interrupt callback which was attached to update event | ||
bool hasInterrupt(); //returns true if a timer rollover interrupt has already been set | ||
//Add interrupt to capture/compare channel | ||
void attachInterrupt(uint32_t channel, callback_function_t callback); // Attach interrupt callback which will be called upon compare match event of specified channel | ||
void detachInterrupt(uint32_t channel); // remove interrupt callback which was attached to compare match event of specified channel | ||
bool hasInterrupt(uint32_t channel); //returns true if an interrupt has already been set on the channel compare match | ||
void timerHandleDeinit(); // Timer deinitialization | ||
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// Refresh() is useful while timer is running after some registers update | ||
void refresh(void); // Generate update event to force all registers (Autoreload, prescaler, compare) to be taken into account | ||
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uint32_t getTimerClkFreq(); // return timer clock frequency in Hz. | ||
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static void captureCompareCallback(TIM_HandleTypeDef *htim); // Generic Capture and Compare callback which will call user callback | ||
static void updateCallback(TIM_HandleTypeDef *htim); // Generic Update (rollover) callback which will call user callback | ||
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void updateRegistersIfNotRunning(TIM_TypeDef *TIMx); // Take into account registers update immediately if timer is not running, | ||
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bool isRunning(); // return true if HardwareTimer is running | ||
bool isRunningChannel(uint32_t channel); // return true if channel is running | ||
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// The following function(s) are available for more advanced timer options | ||
TIM_HandleTypeDef *getHandle(); // return the handle address for HAL related configuration | ||
int getChannel(uint32_t channel); | ||
int getLLChannel(uint32_t channel); | ||
int getIT(uint32_t channel); | ||
int getAssociatedChannel(uint32_t channel); | ||
#if defined(TIM_CC1NE) | ||
bool isComplementaryChannel[TIMER_CHANNELS]; | ||
#endif | ||
void TIM_OC_ConfigChannel_Static(TIM_TypeDef *htim, TIM_OCInitTypeDef *sConfig, uint32_t Channel); | ||
void TIM_IC_ConfigChannel_Static(TIM_TypeDef *htim, TIM_ICInitTypeDef *sConfig, uint32_t Channel); | ||
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private: | ||
TimerModes_t _ChannelMode[TIMER_CHANNELS]; | ||
timerObj_t _timerObj; | ||
callback_function_t callbacks[1 + TIMER_CHANNELS]; //Callbacks: 0 for update, 1-4 for channels. (channel5/channel6, if any, doesn't have interrupt) | ||
}; | ||
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extern timerObj_t *HardwareTimer_Handle[TIMER_NUM]; | ||
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extern timer_index_t get_timer_index(TIM_TypeDef *htim); | ||
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#endif /* __cplusplus */ | ||
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#endif // TIM_MODULE_ENABLED && TIM_MODULE_ONLY | ||
#endif // HARDWARETIMER_H_ |
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