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参数资料
| 型号： | PT7A6526 |
| 英文描述： | 50V Fast Recovery Diode in a DO-203AB (DO-5) package |
| 中文描述： | 单通道协议控制器？ |用户手册PT7A6525（6）在中断演示模式？（PDF格式系统） |
| 文件页数： | 4/41页 |
| 文件大小： | 1640K |
| 代理商： | PT7A6526 |
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12
PT Pericom Technology Inc.
The Demo Board of PT7A6525
in DMA Mode
The Hardware Configuration of the
Demo Board
Component on the demo board
Shown in Figure 1, there are some jumpers, connector
and button which are configured by user.
To connect the circuit correctly, there are 4 pins in
jumper set X5 should be connected. The pin “RxDA”
and the pin “TxDA” is connected to each other by
jumper, and so does the pin “RxDB” and the pin
“TxDB”.
The button K1 is for reset. Pressing this button will
reset all the chips on the demo board. After power-on,
a reset is needed before the demo program can run nor-
mally.
X4 is a RS232 9-pin female connector to PC. The pin
definition is shown in “Function Description - RS232
Serial Interface”. This connector is connected to the
COM1 or COM2 port of PC. After the demo program
starts to run, it will check the port which the demo
board is connected to.
There is a power port on the board. One pin of the port
is for VCC and another for GND. VCC is a +5V power.
The range of VCC is 4.5V to 5.5V. A supply voltage
beyond this range may cause damage on the demo
board. The pin definition is shown in Figure 1.
Connect the Hardware
Before the demo program on PC is run, the demo board
should be connected to power source.
The X4 should be connected to the COM1 or COM2
port of PC by RS232 cable with correct pin-connec-
tions. The baud rate of COM1 is 9600 bps which is set
by the Demo Program. The serial port is of no parity
check, eight data bit, and one stop bit.
After the power-on of the demo board, press button K1
to generate the reset signal.
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