COMMELL MPX-2515 - Manual (Page 29)

Commell MPX-2515 User’s Guide Rev 0100
Taiwan Commate Computer Inc. 29
DATA_10 Reserved
DATA_11 TXB0DLC
DATA_12 TXB0D0
DATA_13 TXB0D1
DATA_14 TXB0D2
DATA_15 TXB0D3
DATA_16 TXB0D4
DATA_17 TXB0D5
DATA_18 TXB0D6
DATA_19 TXB0D7
DATA_20 checksum
1.8.4 MCP_LOAD_TXB1SIDH
The MCP_LOAD_TXB1SIDH command loads the bytes in the Request Packet to
the associated MCP2515 registers in order to complete the corresponding message
transmission on the CAN bus.
#define CCP_CAN_TX_SERVICE 0X23 /* command category code */
#define MCP_LOAD_TXB1SIDH 0X42 /* sub-command code */
#define EP2 2 /* Endpoint 2 */
#define EP3 3 /* Endpoint 3 */
OFFSET BULK OUT (EP2) BULK IN (EP1)
SIZEOF_DATA 0X14 0X05
COMMAND 0X23 0X23
ERROR 0X00 Error code
DATA_0 0X42 Number of bytes return
(0X04)
DATA_1 Overwrite flag EFLG before transmitting
DATA_2 Reserved TXB1CTRL before
transmitting
DATA_3 0X40 EFLG after transmitted
DATA_4 Value to load to TXB1CTRL TXB1CTRL after
transmitted
DATA_5 0X41 checksum
DATA_6 0X0D
DATA_7 TXB1SIDH
DATA_8 TXB1SIDL
DATA_9 TXB1EID8
DATA_10 TXB1EID0
DATA_11 TXB1DLC
DATA_12 TXB1D0
DATA_13 TXB1D1
DATA_14 TXB1D2