sha204_comm.h File Reference

#include <compiler.h>
#include "sha204_physical.h"

Data Structures
struct	sha204_send_and_receive_parameters
	This structure contains the parameters for the sha204c_send_and_receive function. More...

Macros
#define	SHA204_BUFFER_POS_DATA   (1)
	buffer index of first data byte in data response More...
#define	SHA204_BUFFER_POS_STATUS   (1)
	buffer index of status byte in status response More...
#define	SHA204_CMD_SIZE_MAX   ((uint8_t) 84)
	maximum size of command packet (CheckMac) More...
#define	SHA204_CMD_SIZE_MIN   ((uint8_t) 7)
	minimum number of bytes in command (from count byte to second CRC byte) More...
#define	SHA204_COMMAND_EXEC_MAX   (69)
	< compiler dependent definitions More...
#define	SHA204_CRC_SIZE   ((uint8_t) 2)
	number of CRC bytes More...
#define	SHA204_STATUS_BYTE_COMM   ((uint8_t) 0xFF)
	communication error More...
#define	SHA204_STATUS_BYTE_EXEC   ((uint8_t) 0x0F)
	command execution error More...
#define	SHA204_STATUS_BYTE_PARSE   ((uint8_t) 0x03)
	command parse error More...
#define	SHA204_STATUS_BYTE_WAKEUP   ((uint8_t) 0x11)
	status byte after wake-up More...

Functions
void	sha204c_calculate_crc (uint8_t length, uint8_t *data, uint8_t *crc)
	This function calculates CRC. More...
uint8_t	sha204c_send_and_receive (struct sha204_send_and_receive_parameters *args)
	This function runs a communication sequence: Append CRC to tx buffer, send command, delay, and verify response after receiving it. More...
uint8_t	sha204c_wakeup (uint8_t *response)
	This function wakes up a SHA204 device and receives a response. More...

#define SHA204_BUFFER_POS_DATA   (1)

buffer index of first data byte in data response

Referenced by test_all_devices().

#define SHA204_BUFFER_POS_STATUS   (1)

buffer index of status byte in status response

Referenced by sha204c_send_and_receive(), and sha204c_wakeup().

#define SHA204_CMD_SIZE_MAX   ((uint8_t) 84)

maximum size of command packet (CheckMac)

#define SHA204_CMD_SIZE_MIN   ((uint8_t) 7)

minimum number of bytes in command (from count byte to second CRC byte)

Referenced by sha204m_check_parameters(), and sha204m_execute().

#define SHA204_COMMAND_EXEC_MAX   (69)

< compiler dependent definitions

< declarations that are common to all interface implementations maximum command delay

Referenced by sha204c_wakeup(), and sha204m_execute().

#define SHA204_CRC_SIZE   ((uint8_t) 2)

number of CRC bytes

Referenced by sha204c_check_crc(), sha204c_send_and_receive(), sha204c_wakeup(), sha204m_execute(), and sha204m_write().

#define SHA204_STATUS_BYTE_COMM   ((uint8_t) 0xFF)

communication error

Referenced by sha204c_send_and_receive().

#define SHA204_STATUS_BYTE_EXEC   ((uint8_t) 0x0F)

command execution error

Referenced by sha204c_send_and_receive().

#define SHA204_STATUS_BYTE_PARSE   ((uint8_t) 0x03)

command parse error

Referenced by sha204c_send_and_receive().

#define SHA204_STATUS_BYTE_WAKEUP   ((uint8_t) 0x11)

status byte after wake-up

Referenced by sha204c_wakeup().