Compex WPJ558 HW, Руководство пользователя

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WPJ558 Hardware Manual
5
Serial Port Header
The Serial Port (J23) Header signaling is shown in the following table.
Pin Signal
1 VCC – 3.3V
2 UART 0 Transmit Data
3 UART 0 Receive Data
4 GND
Note:
Our Serial port Implementation requires an external
high-impedance serial port not usually available
with the serial ports of the notebooks/computers.
You will need a Serial Converter available in the
market. For our customers’ convenience, it is
bundled together with the board Development Kit.
Serial Console Settings
The serial console settings used together with the serial port is given below.
This serial port uses TTL signals, and therefore you have to use serial converter using MAX-211 IC (or
other IC in the market that convert TTL signals to RS232 signals) in order to use it with the PC.
Baud Rate 115200
Data 8 Bit
Parity None
Stop 1 Bit
Flow Control None
Precaution when using Serial Converter
Please attach the serial converter first on the board serial header, before attaching the power supply.
This is to ensure that there is no surge of power to the serial converter, and prevent any damage the
chipset on the serial converter.
Serial Converter Pin Layouts
Cables on the serial converters are provided. You can use the 6 Pin (Fixed) to 4 Pin (Fixed) provided. The
pin layouts of the serial converters for use with the board are as follows: