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

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//
// Created by MightyPork on 2018/02/03.
//
#ifndef GEX_F072_NPX_INTERNAL_H
#define GEX_F072_NPX_INTERNAL_H
#ifndef NPX_INTERNAL
#error bad include!
#endif
#include "unit_base.h"
/** Private data structure */
struct priv {
struct {
Resource pin;
uint16_t pixels;
} cfg;
uint32_t ll_pin;
GPIO_TypeDef *port;
};
// ------------------------------------------------------------------------
/** Allocate data structure and set defaults */
error_t Npx_preInit(Unit *unit);
/** Load from a binary buffer stored in Flash */
void Npx_loadBinary(Unit *unit, PayloadParser *pp);
/** Write to a binary buffer for storing in Flash */
void Npx_writeBinary(Unit *unit, PayloadBuilder *pb);
// ------------------------------------------------------------------------
/** Parse a key-value pair from the INI file */
error_t Npx_loadIni(Unit *unit, const char *key, const char *value);
/** Generate INI file section for the unit */
void Npx_writeIni(Unit *unit, IniWriter *iw);
// ------------------------------------------------------------------------
/** Finalize unit set-up */
error_t Npx_init(Unit *unit);
/** Tear down the unit */
void Npx_deInit(Unit *unit);
#endif //GEX_F072_NPX_INTERNAL_H