GEX port to STM32F072. This is currently the main port.
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gex-f072/GexUnits/pwmdim/_pwmdim_internal.h

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//
// Created by MightyPork on 2018/02/03.
//
#ifndef GEX_F072_PWMDIM_INTERNAL_H
#define GEX_F072_PWMDIM_INTERNAL_H
#ifndef PWMDIM_INTERNAL
#error bad include!
#endif
#include "unit_base.h"
/** Private data structure */
struct priv {
// settings
struct {
uint32_t freq;
uint8_t ch1_choice;
uint8_t ch2_choice;
uint8_t ch3_choice;
uint8_t ch4_choice;
} cfg;
// internal state
uint32_t freq;
uint16_t duty1;
uint16_t duty2;
uint16_t duty3;
uint16_t duty4;
TIM_TypeDef *TIMx;
};
/** Allocate data structure and set defaults */
error_t UPWMDIM_preInit(Unit *unit);
/** Load from a binary buffer stored in Flash */
void UPWMDIM_loadBinary(Unit *unit, PayloadParser *pp);
/** Write to a binary buffer for storing in Flash */
void UPWMDIM_writeBinary(Unit *unit, PayloadBuilder *pb);
// ------------------------------------------------------------------------
/** Parse a key-value pair from the INI file */
error_t UPWMDIM_loadIni(Unit *unit, const char *key, const char *value);
/** Generate INI file section for the unit */
void UPWMDIM_writeIni(Unit *unit, IniWriter *iw);
// ------------------------------------------------------------------------
/** Finalize unit set-up */
error_t UPWMDIM_init(Unit *unit);
/** Tear down the unit */
void UPWMDIM_deInit(Unit *unit);
error_t UPWMDIM_SetFreq(Unit *unit, uint32_t freq);
error_t UPWMDIM_SetDuty(Unit *unit, uint8_t ch, uint16_t duty1000);
#endif //GEX_F072_PWMDIM_INTERNAL_H