Commell MPX-2515 Manual do Utilizador descarregar pdf (Página 7)

Commell MPX-2515 User’s Guide Rev 0100

Taiwan Commate Computer Inc.

4 COMMAND The command category code.

5 ERROR 0X00

6 DATA_0 or

COMMAND_0

Byte 0 of the data field or command_0 byte.

7 DATA_1 or

COMMAND_1

Byte 1 of the data filed or command_1 byte.

8 DATA_2 or

COMMAND_2

Byte 2 of the data field or command_2 byte.

9 DATA_3 or

COMMAND_3

Byte 3 of the data field or command_3 byte.

10 to N DATA The DATA field; up to 53 bytes.

N+1 CHECKSUM 2's complement checksum of all fields except

this checksum field.

Table 2 CCANP Request Packet Format

The following table defines the format of CCAP Response Packet.

OFFSET NAME DESCRIPTION

0 HEADER_MSB 0X66

1 HEADER_LSB 0XBB

2 VERSION 0X01

3 SIZEOF_DATA The number of bytes residing in the DATA field.

4 COMMAND The corresponding command category code.

5 ERROR The error code.

6 to N DATA The DATA field; up to 57 bytes.

N+1 CHECKSUM 2's complement checksum of all fields except

this checksum field.

Table 3 CCANP Response Packet Format

1.4 Defined Constants

This section defines constants used in MPX-2515 programming. Please be noted

that all these constants are defined in C programming language style.

/* COMMAND: Service code */

#define CCP_CAN_SYSTEM_SERVICE 0X20

#define CCP_CAN_RX_MASKS_FILTERS 0X22

#define CCP_CAN_TX 0X23

#define CCP_CAN_BIT_MODIFY 0X25

#define CCP_CAN_READ_FMB 0X26

/* DATA_0: sub-command code */

#define CAN_GET_INFO 0X01

#define CAN_GET_TICKCOUNT 0X02

1 2 3 4 5 6 7 8 9 10 11 12 ... 37 38

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