mcp47xx.h File Reference
#include <stdbool.h>#include <stdint.h>#include "kernel_defines.h"#include "periph/dac.h"#include "periph/gpio.h"#include "periph/i2c.h"
Include dependency graph for mcp47xx.h: This graph shows which files directly or indirectly include this file:Go to the source code of this file.
Data Structures | |
| struct | mcp47xx_params_t |
| MCP47xx device configuration parameters. More... | |
| struct | mcp47xx_t |
| MCP47xx device data structure type. More... | |
| struct | mcp47xx_saul_dac_params_t |
| MCP47xx configuration structure for mapping DAC channels to SAUL. More... | |
Enumerations | |
| enum | mcp47xx_error_codes_t { MCP47XX_OK , MCP47XX_ERROR_I2C , MCP47XX_ERROR_NOT_AVAIL } |
| MCP47xx driver error codes. More... | |
| enum | mcp47xx_variant_t { MCP4706 , MCP4716 , MCP4725 , MCP4726 , MCP4728 } |
| Supported MCP47xx variants. More... | |
| enum | mcp47xx_gain_t { MCP47XX_GAIN_1X = 0 , MCP47XX_GAIN_2X = 1 } |
| MCP47xx gain configuration type. More... | |
| enum | mcp47xx_vref_t { MCP47XX_VREF_VDD = 0 , MCP47XX_VREF_INT = 1 , MCP47XX_VREF_PIN = 2 , MCP47XX_VREF_BUF = 3 } |
| MCP47xx V_REF configuration type. More... | |
| enum | mcp47xx_pd_mode_t { MCP47XX_NORMAL = 0 , MCP47XX_PD_SMALL = 1 , MCP47XX_PD_MEDIUM = 2 , MCP47XX_PD_LARGE = 3 } |
| MCP47xx Power-down mode selection type. More... | |
Functions | |
| int | mcp47xx_init (mcp47xx_t *dev, const mcp47xx_params_t *params) |
| Initialize the MCP47xx DAC. More... | |
| int | mcp47xx_dac_init (mcp47xx_t *dev, uint8_t chn) |
| Initialize a MCP47xx DAC channel. More... | |
| void | mcp47xx_dac_set (mcp47xx_t *dev, uint8_t chn, uint16_t value) |
| Write a value to a MCP47xx DAC channel. More... | |
| void | mcp47xx_dac_get (mcp47xx_t *dev, uint8_t chn, uint16_t *value) |
| Get the current value of a MCP47xx DAC channel. More... | |
| void | mcp47xx_dac_poweron (mcp47xx_t *dev, uint8_t chn) |
| Enables the MCP47xx DAC device. More... | |
| void | mcp47xx_dac_poweroff (mcp47xx_t *dev, uint8_t chn) |
| Disables the MCP47xx DAC device. More... | |
| uint8_t | mcp47xx_dac_channels (mcp47xx_t *dev) |
| Returns the number of channels of MCP47xx DAC device. More... | |
MCP47xx I2C slave addresses | |
MCP47xx I2C slave addresses are defined as an offset to a base address, which depends on the expander used. The address offset is in the range of 0 to 7. | |
| #define | MCP47XX_BASE_ADDR (0x60) |
| MCP47xx I2C slave base address. More... | |
MCP47xx Channel number | |
| #define | MCP4706_CHN_NUM (1) |
| MCP4706 has 1 channel. | |
| #define | MCP4716_CHN_NUM (1) |
| MCP4716 has 1 channel. | |
| #define | MCP4725_CHN_NUM (1) |
| MCP4725 has 1 channel. | |
| #define | MCP4726_CHN_NUM (1) |
| MCP4726 has 1 channel. | |
| #define | MCP4728_CHN_NUM (4) |
| MCP4728 has 4 channels. | |
| #define | MCP47XX_CHN_NUM_MAX (4) |
| maximum number of channels | |
