![](/media/cache/profiles/c19a46c712c75b70a137f619a0916436.jpg.50x50_q85.png)
Skeleton program for Federico's 4YP project.
Dependencies: WebSocketClient WiflyInterface mbed messages
Fork of IoT_Ex by
Diff: headers/pwm.h
- Revision:
- 10:e8b66718a103
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/headers/pwm.h Tue Nov 29 15:02:01 2016 +0000 @@ -0,0 +1,96 @@ +// ************ +// * iQ_PWM.h * +// ************ +// +// Created: 2015/03/19 +// By: Damien Frost +// +// Description: +// This file provides all of the functions used to configure the +// high speed PWM module of the STM32F401RE microcontroller. + +#ifndef PWWM_H +#define PWWM_H + +#define SETUDIS TIM1->CR1 |= TIM_CR1_UDIS +#define CLEARUDIS TIM1->CR1 &= ~TIM_CR1_UDIS +#define PWMHIGHPRIORITY 0 +#define PWMLOWPRIORITY 1 + +#define PS_RESET 0 +#define PS_SHIFT 1 + +#define PWMST_SETUPCONV 0 +#define PWMST_STARTCONV 1 +#define PWMST_RUNSCSKDC 2 +#define PWMST_CALCNEWPH 3 +#define PWMST_SETNEWPH 4 +#define PWMST_SHIFT 5 +#define PWMST_SAMPLECHTROUGH 6 +#define PWMST_WAITSAMPLETROUGH 7 +#define PWMST_WAIT 8 +#define PWMST_SAMPLECHHILL 9 +#define PWMST_WAITSAMPLEHILL 10 +#define PWMST_SKIPONECYCLE 11 +#define PWMST_MAXST 12 + +#define PWMSTEP_US (10.0f/839.0f) +#define TS (PWMPER_US/1000000) +#define PWMARRMAX (65535) + + + +// Global variables: +extern float CurrentPhaseShift; +extern unsigned int OneCycleSkipExitState; +extern void (*const pwmsm_StateFunction [PWMST_MAXST]) (void); + +// Function prototypes: + +// Configures the PWM for use, using an initial duty cycle of 'duty' +void ConfigurePWM(float duty_us, float period_us); + +// PWM ISR, used fo rdebugging purposes: +void TIM1_CC_IRQHandler(void); + +// Configures the Dead time of the PWM, using an initial dead time of 'dt': +void ConfigureDeadTime(float dt_ns); + +// Set duty by specifying the duty cycle in us: +float SetDuty_us(float duty_us); + +// Set a new duty cycle by specifying it as a number between 0 and 1: +float SetDuty(float duty); + +// This function checks to make sure the duty cycle is within the min and max constraints, it is called by the SetDuty functions. +float CheckMinMaxDuty(float duty); + +// Turn on the the PWM signal: +void TurnOnPWM(bool trueForOn); + +// Apply a phase shift: +int PhaseShift(unsigned int cmd, float phase); + +// Set a new PWM Period: +void SetPWMPeriodAndDuty(int pwmper); +void SetPWMPeriodAndDuty_us(float period); + +// Set the time at which the PWM isr fires: +void SetISRTime(unsigned int isrtime); + +// PWM State Machine functions: +void pwmsm_SetupConv(void); // PWMST_SETUPCONV 0 +void pwmsm_StartConv(void); // PWMST_STARTCONV 1 +void pwmsm_RunScskdc(void); // PWMST_RUNSCSKDC 2 +void pwmsm_CalcNewPh(void); // PWMST_CALCNEWPH 3 +void pwmsm_SetNewPh(void); // PWMST_SETNEWPH 4 +void pwmsm_Shift(void); // PWMST_SHIFT 5 +void pwmsm_SampleChTrough(void); // PWMST_SAMPLECHTROUGH 6 +void pwmsm_WaitSampleTrough(void); // PWMST_WAITSAMPLETROUGH 7 +void pwmsm_Wait(void); // PWMST_WAIT 8 +void pwmsm_SampleChHill(void); // PWMST_SAMPLECHHILL 9 +void pwmsm_WaitSampleHill(void); // PWMST_WAITSAMPLEHILL 10 +void pwmsm_SkipOneCycle(void); // PWMST_SKIPONECYCLE 11 +void SetupOneCycleSkip(unsigned int nextState); + +#endif /* PWWM_H */