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7000 Bus Converter User Manual (version 1.2,Feb/2003, 7PH-006-10) --------------- 82
7.3 Changing Baud Rate
Wire connection: Refer to Sec. 2.7
Test program: Refer to “NAP7000S User Manual” for TEST.EXE
Wire connection: Refer to Sec. 2.7
Test program: Refer to “NAP7000S User Manual” for TEST.EXE
The steps to change the baud rate of communication are given as follows.
1. Wire connection, power on and run test.exe
2. Press 2
3. Press $012[Enter]
1. Wire connection, power on and run test.exe
2. Press 2
3. Press $012[Enter]
Receive=! 01080600
4. Press 2
5. Press %0101080A00[Enter]
5. Press %0101080A00[Enter]
Receive=? 01
6. Connect INIT*_pin (pin 6) to GND_pin (pin_10)
7. Press 2
8. Press %0101080A00[Enter]
7. Press 2
8. Press %0101080A00[Enter]
Receive=! 01
9. Press 2
10. Press $012[Enter]
10. Press $012[Enter]
Receive=! 01080A00
11. Power off, disconnect INIT*_pin and
GND_pin, power on and run test.exe
12. Press 0
13. Press 1[Enter](1/2/3/4 for COM 1/2/3/4)
14. Press 115200[Enter]
15. Press 0[Enter]
16. Press 2
17. Press $012[Enter]
13. Press 1[Enter](1/2/3/4 for COM 1/2/3/4)
14. Press 115200[Enter]
15. Press 0[Enter]
16. Press 2
17. Press $012[Enter]
Receive=! 01080A00
•
Step 3: read the module status, baud rate=9600
•
Step 5: change baud rate with the INIT*_pin floating and the function will fail
failure. If the user want to change the baud rate of the 7000 module, the
INIT*_pin must be connected to the GND_Pin. If the INIT*_pin is left floating
(unconnected), the 7000 module will echo ?AA to the user.
INIT*_pin must be connected to the GND_Pin. If the INIT*_pin is left floating
(unconnected), the 7000 module will echo ?AA to the user.
•
Step 8: change baud rate to 115200 with the INIT*_pin connected to the
GND_Pin. After this command, the baud rate will remain at 9600. The baud
rate of the 7000 series will be changed only during the power-on interval.
rate of the 7000 series will be changed only during the power-on interval.
•
Step 10: read the module status, baud rate= 115200(this value, is stored in
the EEPROM only). The baud rate is changed in step 8 but the baud rate of
this module is still at 9600 BPS. When the module has powered-off-and-
powered-on, the baud rate will be changed to 115200.
this module is still at 9600 BPS. When the module has powered-off-and-
powered-on, the baud rate will be changed to 115200.
•
Step 11: power off, then power on. The module will change its baud rate
based on the EEPROM value only when the module has first powered-on
•
Step 13-16: change TEST.EXE to baud rate 115200
•
Step 17: use baud rate 115200 to read back the module status and find that
the module is now communicating at baud rate 115200.
the module is now communicating at baud rate 115200.
NOTE:
(1) To change the baud rate, the
INIT*-pin must be connected to
GND-pin
(2) The baud rate will be saved into
EEPROM immediately.
(3)
The module will change its baud
rate only during the first power-
on time.