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- #ifndef _MAIN_H_
- #define _MAIN_H_
- // Calculate the byte offset of a field in a structure of type type.
- #define FIELD_OFFSET(type, field) ((uint32_t)(uint32_t*)&(((type *)0)->field))
- // Calculate the size of a field in a structure of type type
- #define FIELD_SIZE(type, field) (sizeof(((type *)0)->field))
- // Calculate the size from field1 to field2 (inclusive)
- #define FIELD_SIZE_THROUGH(type, field1, field2) \
- (FIELD_OFFSET(type, field2) + FIELD_SIZE(type, field2) - FIELD_OFFSET(type, field1))
- #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
- #define NUM_DIGITS 4
- #define I2C_MAX_BUFFER 20
- void I2C_Write(int DeviceAddress, char RegAddress, char *Data, int Length);
- void I2C_Read(int DeviceAddress, char RegAddress, char *Data, int Length);
- #endif
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