#include <avr32/io.h>#include <stdint.h>#include "compiler.h"#include "status_codes.h"#include "conf_twim.h"Data Structures | |
| struct | twim_options_t |
| Input parameters when initializing the twim module mode. More... | |
| struct | twim_package_t |
| Information concerning the data transmission. More... | |
| struct | twim_transfer_t |
| Information concerning the data transmission. More... | |
Macros | |
| #define | AVR32_TWIM_IER_NAK_MASK |
| Interrupt Enable Register Mask for No Acknowledgements. More... | |
| #define | AVR32_TWIM_IER_STD_MASK |
| Frequently used Interrupt Enable Register Mask. More... | |
| #define | AVR32_TWIM_SCR_NAK_MASK |
| Status Clear Register Mask for No Acknowledgements. More... | |
| #define | AVR32_TWIM_SR_NAK_MASK |
| Status Register Mask for No Acknowledgements. More... | |
| #define | AVR32_TWIM_SR_STD_MASK |
| Frequently used Status Clear Register Mask. More... | |
| #define | TWI_FAST_MODE_SPEED (400000 /* kbit/s */) |
| TWI Fast Mode. More... | |
| #define | TWI_STD_MODE_SPEED (100000 /* kbit/s */) |
TWI Driver Compatibility | |
Codes for UC3 devices using TWI modules can easily be ported to UC3 devices with TWIM module | |
| #define | avr32_twi_t avr32_twim_t |
| #define | twi_options_t twim_options_t |
| #define | twi_package_t twim_package_t |
| #define | twi_master_init twim_master_init |
| #define | twi_probe twim_probe |
Functions | |
| static status_code_t | twi_master_read (volatile avr32_twi_t *twim, const twi_package_t *package) |
| Compatibility with TWI Module driver for read operation. More... | |
| static status_code_t | twi_master_write (volatile avr32_twi_t *twim, const twi_package_t *package) |
| Compatibility with TWI Module drivers for write operation. More... | |
| status_code_t | twim_chained_transfer (volatile avr32_twim_t *twim, volatile twim_transfer_t *first, volatile twim_transfer_t *second, bool tenbit) |
| Perform Chained transfers to a TWI compatible slave device. More... | |
| void | twim_disable_interrupt (volatile avr32_twim_t *twim) |
| Disable the TWI interrupts and clear its status register. More... | |
| static void | twim_master_disable (volatile avr32_twim_t *twim) |
| Disable Master Mode of the TWI. More... | |
| static void | twim_master_enable (volatile avr32_twim_t *twim) |
| Enable Master Mode of the TWI. More... | |
| status_code_t | twim_master_init (volatile avr32_twim_t *twim, const twim_options_t *opt) |
| Initialize the twi master module. More... | |
| status_code_t | twim_probe (volatile avr32_twim_t *twim, uint32_t chip_addr) |
| Test if a chip answers for a given twi address. More... | |
| status_code_t | twim_read (volatile avr32_twim_t *twim, uint8_t *buffer, uint32_t nbytes, uint32_t saddr, bool tenbit) |
| Read multiple bytes from a TWI compatible slave device. More... | |
| status_code_t | twim_read_packet (volatile avr32_twim_t *twim, const twim_package_t *package) |
| Read multiple bytes from a TWI compatible slave device. More... | |
| status_code_t | twim_set_speed (volatile avr32_twim_t *twim, uint32_t speed, uint32_t pba_hz) |
| Set the twim bus speed in conjunction with the clock frequency. More... | |
| uint8_t | twim_status (void) |
| Information about the current status of the TWI Bus. More... | |
| status_code_t | twim_write (volatile avr32_twim_t *twim, const uint8_t *buffer, uint32_t nbytes, uint32_t saddr, bool tenbit) |
| Write multiple bytes to a TWI compatible slave device. More... | |
| status_code_t | twim_write_packet (volatile avr32_twim_t *twim, const twim_package_t *package) |
| Write multiple bytes to a TWI compatible slave device. More... | |
| enum | twim_transfer_status { TWI_SUCCESS = 0, TWI_INVALID_ARGUMENT = -1, TWI_ARBITRATION_LOST = -2, TWI_NO_CHIP_FOUND = -3, TWI_RECEIVE_NACK = -4, TWI_SEND_NACK = -5, TWI_INVALID_CLOCK_DIV = -6 } |
| Status Codes for TWI Transfer. More... | |
| typedef enum twim_transfer_status | twim_transfer_status_t |
1.8.5