#include?“inc/hw_memmap.h“
#include?

//#include?“inc/hw_types.h“
#include?“atsha204_encry.h“	
#include?“inc/hw_ints.h“
#include?“driverlib/interrupt.h“
#include?“utils/uartstdio.h“
#include?“appli_i2c.h“
#include?“imitate_i2c.h“

#define?ATSHA204_ADDRESS	0x64	//atsha204?device?address?（1-7bits）

/*word?address?use?to?different?function*/
#define?RESET_ADDRESS	0x00
#define?SLEEP_ADDRESS	0x01
#define	IDLE_ADDRESS	0x02
#define?COMMAND_ADDRESS?0x03


#define?ATSHA204_READ_COMMAND		0x02
#define?ATSHA204_WRITE_COMMAND		0x12
#define?ATSHA204_LOCK_COMMAND		0x17
#define?ATSHA204_NONCE_COMMAND		0x16
#define?ATSHA204_MAC_COMMAND		0x08
#define?ATSHA204_CHECKMAC_COMMAND	0x28


#define?MAC_CHALLENGE_SIZE		32
#define?NONCE_CHALLENGE_SIZE	32

#define?DATA_LEN_35BYTES_SIZE	35
#define?DATA_LEN_32BYTES_SIZE	32
#define?DATA_LEN_7BYTES_SIZE	7
#define?DATA_LEN_4BYTES_SIZE	4

typedef?enum?
{
	CONFIG_ZONE_BIT=0//config?zone
	OTP_ZONE_BIT	//?otp?zone
	DATA_ZONE_BIT	//data?zone
}DIFF_ZONE;

/*read?how?many?bytes?at?one?timejust?two?choice?one?is?4?bytes?another?is?32?bytes*/
#define?READ_COMMAND_4_BYTES		（0x00<<7）	//read?comman?lengh?is?4?bytes
#define?READ_COMMAND_32_BYTES		（0x01<<7）	//read?comman?lengh?is?32?bytes



#define?SHA204_RSP_SIZE_MIN		4


static?void?atsha204_receive_response（UINT8?countUINT8?*data）;
static?void?atsha204_read_command（UINT8?modeDIFF_ZONE?zoneUINT8?wordaddrUINT8?*data）;

static?void?atsha204_write_command（UINT8?modeDIFF_ZONE?zoneUINT8?wordaddrUINT8?lenghUINT8?*txbuffUINT8?*rxbuff）;



/*******************************************************************
*Name:	delay_ms（）
*
*Input?parameter:	num?as?delay?time?1?as?delay?1ms
*
*Return?value:?none
*
*Description:	delay?times?1?as?1ms.?not??precise
********************************************************************/
static?void?delay_ms（int?num）
{
	int?i;
	while（num>0）
		{
			for（i=0;i<4600;i++）
			{
				;
			}
			num--;
		}
}

/*******************************************************************
*Name:	SerialI2C0IntHandler（）
*
*Input?parameter:	none
*
*Return?value:?none
*
*Description:	the?function?pointer?give?to?vector?table?in?startup.s?file
********************************************************************/
void?atsha204_reset_address_count（void）
{
	unsigned?char?data[32]={0};
	unsigned?char?count=0;	
	data[count++]?=?RESET_ADDRESS;	
	i2c_write_bytes（ATSHA204_ADDRESSRESET_ADDRESSdatacount）;
}
/*******************************************************************
*Name:	atsha204_wakeup（）
*
*Input?parameter:	none
*
*Return?value:?none
*
*Description:	the?function?pointer?give?to?vector?table?in?startup.s?file
********************************************************************/
void?atsha204_wakeup（void）
{
	BYTE?data[4]={0};
	i2c_write_bytes（0x000x00data1）;	//pull?down?the?data?pin?for?60us?at?least
	delay_ms（3）;
	atsha204_receive_response（4data）;
	i

?屬性????????????大小?????日期????時間???名稱
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?????文件??????21788??2014-04-22?21:06??atsha204\atsha204_authenticate_key.c

?????文件????????191??2014-04-22?21:06??atsha204\atsha204_authenticate_key.h

?????目錄??????????0??2014-04-22?21:36??atsha204

-----------?---------??----------?-----??----

????????????????21979????????????????????3