diff options
Diffstat (limited to 'src/Duet/MCP4461/MCP4461.h')
| -rw-r--r-- | src/Duet/MCP4461/MCP4461.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/Duet/MCP4461/MCP4461.h b/src/Duet/MCP4461/MCP4461.h new file mode 100644 index 00000000..6b3e85cf --- /dev/null +++ b/src/Duet/MCP4461/MCP4461.h @@ -0,0 +1,52 @@ +#ifndef MCP4461_H +#define MCP4461_H + +#include <inttypes.h> + +#define DEFAULT_ADDRESS 0x2C //With A0 and A1 grounded +#define DEFAULT_WIPER_VALUE 0x80 //Default to the wipers in midrange + +// meory addresses (all shifted 4 bits left) +//For all the Wipers 0x100 = Full scale, 0x80 = mid scale, 0x0 = Zero scale +#define MCP4461_VW0 0x00 +#define MCP4461_VW1 0x10 +#define MCP4461_NVW0 0x20 +#define MCP4461_NVW1 0x30 +//TCON0: D8: Reserved D7:R1HW D6: R1A D5:R1W D4:R1B D3:R0HW D2:R0A D1:R0W D0: R0B +#define MCP4461_TCON0 0x40 +//STATUS: D8:D7: Reserved D6: WL3 D5:WL2 D4:EEWA D3:WL1 D2:WL0 D1:Reserved D0: WP +#define MCP4461_STATUS 0x50 +#define MCP4461_VW2 0x60 +#define MCP4461_VW3 0x70 +#define MCP4461_NVW2 0x80 +#define MCP4461_NVW3 0x90 +//TCON0: D8: Reserved D7:R3HW D6: R3A D5:R3W D4:R3B D3:R2HW D2:R2A D1:R2W D0: R2B +#define MCP4461_TCON1 0xA0 + +//control commands +#define MCP4461_WRITE 0x0 +#define MCP4461_INCREMENT 0x4 //01 left shift by 2 +#define MCP4461_DECREMENT 0x8 //10 left shift by 2 +#define MCP4461_READ 0xC //11 left shift by 2 + +class MCP4461{ +public: + MCP4461(); + void begin(); + void setMCP4461Address(uint8_t); + void setVolatileWiper(uint8_t, uint16_t); + void setNonVolatileWiper(uint8_t, uint16_t); + void setVolatileWipers(uint16_t); + void setNonVolatileWipers(uint16_t); + void toggleWiper(uint8_t); //NOT YET IMPLEMENTED + uint16_t getVolatileWiper(uint8_t); + uint16_t getNonVolatileWiper(uint8_t); + uint16_t getStatus(); + +private: + uint8_t _mcp4461_address; + uint8_t _wiper; + uint8_t _value; +}; + +#endif //MCP4461_H |