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| 型号： | 71M6543F-DB-CT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/91页 |
| 文件大小： | 0K |
| 描述： | DEMO BOARD 71M6543F-DB-CT |
| 标准包装： | 1 |
| 系列： | * |
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71M6543 Demo Board User’s Manual
1.7.1 POWER SUPPLY SETUP
There are several choices for the meter power supply:
o
o
Internal (using the AC line voltage). The internal power supply is only suitable when the voltage ex-
ceeds 100V RMS. To enable the internal supply, a jumper needs to be installed across JP6 on the top
of the board.
External 5.0 VDC connector (JP20) on the Demo Board.
1.7.2 CABLES FOR SERIAL COMMUNICATION
It is recommended to use the USB connection to communicate with the Demo Code. The optional Debug
Board is not normally shipped with the Demo Kit and requires a serial port (DB9) on the PC along with a sepa-
rate power supply.
1.7.2.1 USB Connection
A standard USB cable can be used to connect the Demo Board to a PC running HyperTerminal or a similar se-
rial interface program. A suitable driver, e.g. the FTDI CDM Driver Package, must be installed on the PC to en-
able the USB port to be mapped as a virtual COM port. The driver can be found on the FTDI web site
See Table 3-1 for correct placement of jumper JP5 depending on whether the USB connection or the serial
connection via the optional Debug Board is used.
1.7.2.2 Serial Connection (Optional)
For connection of the DB9 serial port of the Debug Board to a PC serial port (COM port), either a straight or a
so-called “null-modem” cable may be used. JP1 and JP2 are plugged in for the straight cable, and JP3/JP4 are
Cable Configura-
tion
Mode
JP1
Jumpers on Debug Board
JP2 JP3
JP4
Straight Cable
Null-Modem Cable
Default
Alternative
Installed
--
Installed
--
--
Installed
--
Installed
Table 1-1: Jumper Settings on Debug Board
JP1 through JP4 can also be used to alter the connection when the PC is not configured as a DCE device. Ta-
ble 1-2 shows the connections necessary for the straight DB9 cable and the pin definitions.
PC Pin
2
3
5
Function
TX
RX
Signal Ground
Demo Board Pin
2
3
5
Table 1-2: Straight Cable Connections
Table 1-3 shows the connections necessary for the null-modem DB9 cable and the pin definitions.
PC Pin
2
3
5
Function
TX
RX
Signal Ground
Demo Board Pin
3
2
5
Table 1-3: Null-modem Cable Connections
See Table 3-1 for correct placement of jumper JP5 on the Demo Board depending on whether the USB connec-
tion or the serial connection via the Debug Board is used.
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