Elnec BeeHive304, Руководство пользователя

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PG4UW software
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Selecting option "Allow address history logging" activates saving of recently confirmed values.
These are saved for each device separately, count is limited to last 15 items.
Note: Address history values are common for all buffer data manipulation dialogs.
Default address range is set according to buffer range of selected device.
Selecting option "Maintain last inserted values" causes that for the next time you open this
dialog, previously confirmed values will be reloaded as default.
Buffer / Swap block
This command swaps a high- and low- order of byte pairs, foursomes or nibbles inside bytes
depending on swap mode selected by user. Swap operation is performed on buffer block
specified by Start and End addresses. This block must start on even address and must have
an even number of bytes. If the conditions do not fulfill, the program modifies addresses itself
(start address is moved on lower even address and/or end address is moved on higher odd
address).
Following swap modes are available, user can select from:
1. Swap 2-bytes inside 16-bit words swap of byte pairs inside 16-bit words.
2. Swap 4-bytes inside 32-bit words swap of byte foursomes inside 32-bit words.
3. Swap nibbles inside bytes
swap of high- and low- nibbles inside each byte.
4. Mirror bits inside bytes mirror bits inside each byte
Examples of swap operation in buffer:
Swap bytes operation from Start address 0 to End address N modifies data in buffer by
following tables:
Address
Original
Data
Swap 2-bytes
inside 16-bit
words
Swap 4-bytes
inside 32-bit
words
Swap
nibbles
inside bytes
Mirror bits
inside
bytes
0000h b0 b1 b3 b0n b0m
0001h b1 b0 b2 b1n b1m
0002h b2 b3 b1 b2n b2m
0003h b3 b2 b0 b3n b3m
0004h b4 b5 b7 b4n b4m
0005h b5 b4 b6 b5n b5m
0006h b6 b7 b5 b6n b6m
0007h b7 b6 b4 b7n b7m
b0, b1, b2 ... means original buffer byte values from addresses 0, 1, 2...
b0n, b1n, b2n... means nibble-swapped original bytes b0, b1, b2... by following rules:
Original Byte bits bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
Nibble-swapped Byte Bits bit 3 bit 2 bit 1 bit 0 bit 7 bit 6 bit 5 bit 4
Original Byte bits bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
Mirrored Byte Bits bit 0 bit 1 bit 2 bit 3 bit 4 bit 5 bit 6 bit 7