GE EPM 9650/9800 manual GE Communicator EXT Flash Code Hex Line

EPM DSP FLASH Sequence & Status / FLASH Command (65415): This Register is similar to Register 65409, except that it effects the DSP Microcontroller Normal FLASH. Valid commands are:

0x00001 = Erase the Code Blocks (Normal FLASH, Blocks 4-7) 0x00002 = Calculate the Code Checksum (Normal FLASH, Blocks 4-7) 0x00100 = Reset to Normal Operation

0x00101 = Reset to FLASH Operation

Reads of this Register by the Locked Port when in FLASH Operation initializes a 30-second Timeout. This Timeout is reset by a read by the Locked Port of this Register (65415) or that of the Communication Microcontroller FLASH Sequence & Status Register (65410). If this Timeout runs out, the Communication Microcontroller will reset.

EPM DSP FLASH Code Checksum - Range 65535/0 (65416): When read, this Register returns the Code LRC16 as calculated after the last Code Checksum Action.

When written by the Locked Port, the value written is programmed into the Normal FLASH at Addresses 0x1FFFE - 0x1FFFF as the Code Checksum.

Port to Port Communications (65417-65421):These Registers are readable and writable from any port. They are meant to convey commands from a Master Device connected on one port to a Master Device connected on a different port. (Example: A PC wishes to upgrade the FLASH on a Display.) Each Register is meant to be monitored by a different port, as follows:

65417	Commands to Port A, I/O
65418	Commands to Port B
65419	Commands to Port C
65420	Commands to Port D, 232/485
65421	Commands to the Diagnostic Port - currently not used

Commands are sent in the form of codes written to these Registers. The following are Valid Commands to be recognized appropriately by Master Devices (like Displays):

0x00000	No Command
0x00100	Reset to Normal Mode
0x00101	Reset to FLASH Mode
0x00102	Reset to FLASH Mode, Default Settings

GE Communicator EXT FLASH Code Hex Line (65425-65434)

These 10 Registers are used as an interface for the 20 useful bytes from a line of a HEX file. The

20 bytes holding binary data are:

Length:	1 byte
Offset:	2 bytes
Type:	1 byte
Content:	16 bytes

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