Advantech MIO-2262 User Manual page 54

III. Programmable GPIO
Pin Number
- Get the numbers of input pins and output pins respectively. Each number may
vary with the direction of current pins, but the sum remains the same.
MASK
- Choose the mask of interest by selecting or clearing its check box, then clicking
"Get Mask".
Direction Change / RW Access
- Choose either "Single Pin" or "Multiple Pin".
- The possible values that the "Single Pin" text box can be set to ranges from 0 to
the total number of GPIO pins minus 1.
Single Pin Operation – "IO Write" / "Set Direction"
- Give a value of "1‟ (output status high / input direction) or "0‟ (output status low /
output direction) to set the pin then click the "IO Write" or "Set Direction" button.
Single Pin Operation – "IO Read"
- Click "IO Read" to get the pin input status.
Multiple Pin Operation – "IO Write" / "Set Direction"
If there are 8 GPIO pins:
- To write the status of GPIO output pins 0, 1, 6 and 7, give the "Multiple Pin" text
box the value 11000011. Bit 0 stand for GPIO 0, bit 1 stand for GPIO 1, and so
on.
To set pin 0 as high, pin 1 as low, pin 6 as high and pin 7 as low, give the "Value"
text box the value 01XXXX01, where X stands for a don't care pin.
Please simply assign a 0 for don't care pins, e.g. 10000001.
- To set the direction of GPIO pins 0, 1, 6 and 7, give the "Multiple Pin" text box
the value 11000011. Again bit 0 stands for GPIO 0, bit 1 stands for GPIO 1, and
so on. To set pin 0 as an input, pin 1 as an output, pin 6 as an input and pin 7 as
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