CryptoAuthLib
Atmel CryptoAuthentication Library
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ATCA Hardware abstraction layer for I2C bit banging. More...
#include <asf.h>
#include <string.h>
#include <stdio.h>
#include "atca_hal.h"
#include "hal_i2c_bitbang.h"
Functions | |
ATCA_STATUS | hal_i2c_init (void *hal, ATCAIfaceCfg *cfg) |
hal_i2c_init manages requests to initialize a physical interface. It manages use counts so when an interface has released the physical layer, it will disable the interface for some other use. You can have multiple ATCAIFace instances using the same bus, and you can have multiple ATCAIFace instances on multiple i2c buses, so hal_i2c_init manages these things and ATCAIFace is abstracted from the physical details. More... | |
ATCA_STATUS | hal_i2c_post_init (ATCAIface iface) |
HAL implementation of I2C post init. More... | |
ATCA_STATUS | hal_i2c_send (ATCAIface iface, uint8_t *txdata, int txlength) |
Send byte(s) via I2C. More... | |
ATCA_STATUS | hal_i2c_receive (ATCAIface iface, uint8_t *rxdata, uint16_t *rxlength) |
Receive byte(s) via I2C. More... | |
ATCA_STATUS | hal_i2c_wake (ATCAIface iface) |
Send Wake flag via I2C. More... | |
ATCA_STATUS | hal_i2c_idle (ATCAIface iface) |
Send Idle flag via I2C. More... | |
ATCA_STATUS | hal_i2c_sleep (ATCAIface iface) |
Send Sleep flag via I2C. More... | |
ATCA_STATUS | hal_i2c_release (void *hal_data) |
Manages reference count on given bus and releases resource if no more reference(s) exist. More... | |
Variables | |
ATCAI2CMaster_t * | i2c_hal_data [MAX_I2C_BUSES] |
Logical to physical bus mapping structure. More... | |
int | i2c_bus_ref_ct = 0 |
total in-use count across buses More... | |
ATCA Hardware abstraction layer for I2C bit banging.
Copyright (c) 2015 Atmel Corporation. All rights reserved.