mcp__regs_8h_source.html

#ifndef MCP_REGS_H

#define MCP_REGS_H

#include <stdint.h>


/*=============================== MCP23017 ================================*/


#define MCP_IODIRA   0x00

#define MCP_IODIRB   0x01

#define MCP_IPOLA    0x02

#define MCP_IPOLB    0x03

#define MCP_GPINTENA 0x04

#define MCP_GPINTENB 0x05

#define MCP_DEFVALA  0x06

#define MCP_DEFVALB  0x07

#define MCP_INTCONA  0x08

#define MCP_INTCONB  0x09

#define MCP_IOCONA   0x0A

#define MCP_IOCONB   0x0B

#define MCP_GPPUA    0x0C

#define MCP_GPPUB    0x0D

#define MCP_INTFA    0x0E

#define MCP_INTFB    0x0F

#define MCP_INTCAPA  0x10

#define MCP_INTCAPB  0x11

#define MCP_GPIOA    0x12

#define MCP_GPIOB    0x13

#define MCP_OLATA    0x14

#define MCP_OLATB    0x15


// Input/Output Control (IOCON) control macros

#define IOCON_BANK   0x80

#define IOCON_MIRROR 0x40

#define IOCON_SEQOP  0x20

#define IOCON_DISSLW 0x10

#define IOCON_HAEN   0x08

#define IOCON_ODR    0x04

#define IOCON_INTPOL 0x02


#define MCP_POR_IODIR 0xFF

#define MCP_POR_OTHER 0x00


/*=============================== MCP4728 ================================*/


#define DAC_CMD_FAST        0x00

#define DAC_CMD_MULTIWRITE  0x40

#define DAC_CMD_SEQWRITE    0x50

#define DAC_CMD_SINGLEWRITE 0x58

#define DAC_CMD_ADDRBITS    0x60

#define DAC_CMD_WRITE_VREF  0x80

#define DAC_CMD_WRITE_PD    0xA0

#define DAC_CMD_WRITE_GAIN  0xC0


#define DAC_FAST_HI(v12) ((uint8_t)(((v12) >> 8) & 0x0F))

#define DAC_FAST_LO(v12) ((uint8_t)((v12) & 0xFF))


#define DAC_VREF_VDD        0

#define DAC_VREF_INTERNAL   1 // 2.048V

#define DAC_GAIN_X1         0

#define DAC_GAIN_X2         1 // 4.096V


#define DAC_PD_NORMAL       0

#define DAC_PD_1K           1 // 1kR to gnd

#define DAC_PD_100K         2

#define DAC_PD_500K         3


#define DAC_GC_ADDR         0x00

#define DAC_GC_RESET        0x06

#define DAC_GC_WAKEUP       0x09

#define DAC_GC_SWUPDATE     0x08

#define DAC_GC_READ_ADDR    0x0C


#define MCP23017_BASE   0x20

#define MCP4728_BASE    0x60


#endif