Changing Baud Rate Wire connection Refer to Sec

7.3Changing Baud Rate

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]	Receive=! 01080600
4.	Press 2
5.	Press %0101080A00[Enter]	Receive=? 01

6.Connect INIT*_pin (pin 6) to GND_pin (pin_10)

7.Press 2

8.	Press %0101080A00[Enter] Receive=! 01		NOTE:
9.	Press 2
			(1) To change the baud rate, the
10.	Press $012[Enter]	Receive=! 01080A00
			INIT*-pin must be connected to
11.	Power off, disconnect INIT*_pin and
	GND_pin, power on and run test.exe		GND-pin
12.	Press 0		(2) The baud rate will be saved into
13.	Press 1[Enter](1/2/3/4 for COM 1/2/3/4)		EEPROM immediately.
14.	Press 115200[Enter]
			(3)The module will change its baud
15.	Press 0[Enter]
			rate only during the first power-
16.	Press 2
17.	Press $012[Enter]	Receive=! 01080A00	on time.

•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.

•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.

•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.

•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.

7000 Bus Converter User Manual (version 1.2,Feb/2003, 7PH-006-10) ---------------