Lilliput PC-701, Руководство пользователя

Страница: 12 / 22

12
2. How to Read or Set Value of Gpio Port
Read : Read the value directly from the device node's folder, function is as
follows, please refer to the attached demo for detail usage.
Public String gpioReadStateOne: ( String state)
Data read: 0----  The gpio input is high level
1----

The gpio input is low level
Set : Write directly in the value under the device node's folder, function is as
follows, please refer to the attached demo for detail usage (Input pin
can't be set).
Public boolean gpioSetStateOne: ( String name, int state)
Value set: 0----

Set the gpio output as high level
1----  Set the gpio output as low level
3. Note
The setting of GPIO port should match with the hardware, be sure not to change
the input/output status of GPIO nodes freely. The standard GPIO of device is 4
inputs and 6 outputs, namely, Gpio57, Gpio82, Gpio87 and Gpio92 are input
pins, Gpio93, Gpio191, Gpio9, Gpio171, Gpio174 and Gpio175 are output pins.
4. Memory Card Instructions

The memory card and the card slot on the device are precision electronic
components. Please align to the position accurately when inserting the memory
card into the card slot to avoid of damage. Please slightly push the upper edge of
the card to loosen it when removing the memory card, then pull it out.

It is normal when the memory card getting hot after long time working.

The data stored on the memory card may be damaged if the card is not used
correctly, even the power is cut off or the card is pulled out when reading data.

Please store the memory card in packing box or bag if not used for a long time.

Do NOT insert the memory card by force to avoid of damage.