CryptoAuthLib
Microchip CryptoAuthentication Library
hal_at90usb1287_i2c_asf.c File Reference

ATCA Hardware abstraction layer for AT90USB1287 I2C over ASF drivers. More...

#include <asf.h>
#include <string.h>
#include <stdio.h>
#include "atca_hal.h"
#include "hal_at90usb1287_i2c_asf.h"
#include "atca_device.h"
#include "atca_execution.h"

Functions

ATCA_STATUS hal_i2c_discover_buses (int i2c_buses[], int max_buses)
 discover i2c buses available for this hardware this maintains a list of logical to physical bus mappings freeing the application of the prior knowledge More...
 
ATCA_STATUS hal_i2c_discover_devices (int bus_num, ATCAIfaceCfg cfg[], int *found)
 discover any CryptoAuth devices on a given logical bus number More...
 
ATCA_STATUS hal_i2c_init (void *hal, ATCAIfaceCfg *cfg)
 initialize an I2C interface using given config 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)
 HAL implementation of I2C send over ASF. More...
 
ATCA_STATUS hal_i2c_receive (ATCAIface iface, uint8_t *rxdata, uint16_t *rxlength)
 HAL implementation of I2C receive function for ASF I2C. More...
 
void change_i2c_speed (ATCAIface iface, uint32_t speed)
 method to change the bus speed of I2C More...
 
ATCA_STATUS hal_i2c_wake (ATCAIface iface)
 wake up CryptoAuth device using I2C bus More...
 
ATCA_STATUS hal_i2c_idle (ATCAIface iface)
 idle CryptoAuth device using I2C bus More...
 
ATCA_STATUS hal_i2c_sleep (ATCAIface iface)
 sleep CryptoAuth device using I2C bus More...
 
ATCA_STATUS hal_i2c_release (void *hal_data)
 manages reference count on given bus and releases resource if no more refences exist More...
 

Detailed Description

ATCA Hardware abstraction layer for AT90USB1287 I2C over ASF drivers.

Prerequisite: Add I2C Master Polled/Interrupt support to application in Atmel Studio this HAL implementation assumes you've included the ASF I2C libraries in your project, otherwise, the HAL layer will not compile because the ASF I2C drivers are a dependency