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7000 Bus Converter User Manual (version 1.2,Feb/2003, 7PH-006-10) --------------- 83
7.4 Checksum Enable/Disable
Wire connection: Refer to Sec. 2.7
Test program: Refer to “NAP7000S User Manual” for TEST.EXE
The steps to enable/disable checksum status are given as following.
1. Wire connection, power on and run test.exe
2. Press 2
3. Press $012[Enter] Receive=! 01080600
4. Press 2
5. Press %0101080640[Enter] Receive=? 01
6. Connect the INIT*_pin (pin 6) to the GND_pin (pin_10)
7. Press 2
8. Press %0101080640[Enter] Receive=! 01
9. Press 2
10. Press $012[Enter] Receive=! 01080640
11. Power off, disconnect the INIT*_pin and the GND_pin
12. Power on and run test.exe, then press 0
13. Press 1[Enter](1/2/3/4 for COM 1/2/3/4)
14. Press 9600[Enter]
15. Press 1[Enter]
16. Press 2
17. Press $012[Enter]
Receive=!01080640B1
NOTE:
(1) To enable the checksum, the INIT*-pin must be connected to the GND-pin
(2) The checksum status will be saved into the EEPROM immediately.
(3) The module will change its checksum state only during the first power-on time
(4) The TEST.EXE will send out the extra checksum byte if checksum is enabled.
(5) The 7000 will echo the extra checksum byte. The extra checksum byte is “B1” in
this example.