Futaba RS302CD - Manual (Page 17)

17
Memory Map
● Invariable ROM area
Table 4.4 Invariable ROM area
Area
Adress No.
DEC HEX
Initial
value
Name Property
00 00H 10H(20H) Model Number L R
01 01H 30H Model Number H R
02 02H 01H Firmware Version R
Invariable
ROM
03 03H 00H Reserved -
( ) For RS302CD
●No.0 / No.1 Model Number(2Bytes, Hex Number, Read Only)
This field represents the model No. (servo model). For the RS301CR, it is:
Model Number L = 10H
Model Number H = 30H
For RS302CD, they are as follows.
Model Number L = 20H
Model Number H = 30H
●No.2 Firmware Version(1Byte, Hex Number, Read Only)
This field represents the servo firmware version. Its value varies depending on the
version at production (0x01 in the example below).
Firmware Version = 01H
※ Storing two-byte data to memory map
Two-byte data is stored to the memory map in two individual 8-bit bytes of H (High byte)
and L (Low byte).
Ex.) Issue a 29.2 degrees operation command to servo ID=23.
The command angle is saved to the Target Position item. The commanded value is 29.2
degrees, but since this is 0x0124 in hexadecimal notation, the data actually stored is:
Target Position(L) = 24H
Target Position(H) = 01H