BECKHOFF ET9300 - Manual (Page 30)

28 Application Note ET9300
Prototype: UINT16 (* pAPPL_EEPROM_Write)(UINT32 wordaddr)
Parameter Wordaddr start word address within the EEPROM memory
Return 0 if the operation was successful.
greater 0 an error has occurred
Description This is an optional function and only required if EEPROM_EMULATION is
enabled and no EEPROM content is created (CREATE_EEPROM_CONTENT
== 0)
This function shall copy data from the ESC EEPROM data register
(0x508:0x50F/0x50B) to the EEPROM memory.
The EEPROM data starting at the specified word address and the length
specified with "EEPROM_WRITE_SIZE".
Prototype: UINT16 (* pAPPL_EEPROM_Reload)(void)
Parameter Void
Return 0 if the operation was successful.
greater 0 an error has occurred
Description This is an optional function and only required if EEPROM_EMULATION is
enabled and no EEPROM content is created (CREATE_EEPROM_CONTENT
== 0). In case that this function is implemented the function
“HW_EepromReload()” is not used.
This function shall copy the EEPROM reload information to the ESC EEPROM
data register (0x508:0x50F/0x50B).
Read the ESC data sheet for the reload information (e.g. Beckhoff IPCore ESC
Datasheet section II, clause 3.45.1)
6.3.2 EtherCAT State Machine
Each ESM function returns a 16Bit Value which reflects the result of the state transition.
Return value:
0 Indicates a successful transition. Define : ALSTATUSCODE_NOERRO
0xFF Indicates a pending state transition (the application need to complete the transition by
calling ECAT_StateChange). Define : NOERROR_INWORK
Other Indicates the reason for the failed transition. See [2] for a list of valid return codes.
Prototype: UINT16 APPL_StartMailboxHandler(void)
Parameter Void
Return See generic ESM return code description
Description This function is called during the state transition from INIT to PREOP or INIT to
BOOT.