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Provide some missing Arduino macros #16497

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Jan 8, 2020
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Provide some missing Arduino macros #16497

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18 changes: 18 additions & 0 deletions Marlin/src/feature/dac/dac_mcp4728.h
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,24 @@

#include <Wire.h>

/**
* The following three macros are only used in this piece of code related to mcp4728.
* They are defined in the standard Arduino framework but could be undefined in 32 bits Arduino frameworks.
* (For instance not defined in Arduino lpc176x framework)
* So we have to define them if needed.
*/
#ifndef word
#define word(h, l) ((uint8_t) ((h << 8) | l))
#endif

#ifndef lowByte
#define lowByte(w) ((uint8_t) ((w) & 0xff))
#endif

#ifndef highByte
#define highByte(w) ((uint8_t) ((w) >> 8))
#endif

#define defaultVDD DAC_STEPPER_MAX //was 5000 but differs with internal Vref
#define BASE_ADDR 0x60
#define RESET 0b00000110
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