AKD4186-A Datasheet, PDF (11/19 Pages) Asahi Kasei Microsystems – Evaluation board Rev.1 for AK4186

[AKD4186-A]
1. Initial Setting
[Reset]:
The AK4186 is reset.
[CAD0]:
Please make it fit to the setting of CAD0 pin.
[Port Address]: The setting of Parallel Port. (Normally, this setting is not needed.)
2. Single Mode Measurement
AK4186 measures the position of 4-wire or 5-wire touch screen and the voltage of analog input.
[PANEL]:
Select the touch screen interface. (PANEL bit)
[1st Measurement]: Select last Measurement Channel for the 1st Measurement.
[2nd Measurement]: Select last Measurement Channel for the 2nd Measurement.
[Continuous]:
Set A/D conversion times and continuously outputs ADC data.
[Repeat]:
Set measurement times of repeat.
[Single Mode Start]: Start the single measurement.
3. Sequence Mode Measurement
AK4186 measures the position of 4-wire or 5-wire touch screen and the voltage of analog input.
[PANEL]: Select the touch screen interface. (PANEL bit)
[SCAN Mode]: Select the sequence mode.
[ADC Count]: Set the A/D conversion count. (COUNT bit)
[Interval Time]: Set the sampling interval time. (INTERVAL 2-0 bits)
[Repeat]:
Set the measurement times of repeat.
[Sequence Mode Start]: Start the sequence measurement.
4. Show the Measurement Result (AD OUT Section)
[MEAN]:
The average value of measurement result is shown.
[MAX]:
The maximum value of measurement result is shown.
[MIN]:
The minimum value of measurement result is shown.
[SIGMA]: The standard deviation of measurement result is shown.
5. Show the Measurement Result of Pen Pressure (For 4-wire Touch Screen)
In case of selecting the SCAN Mode to “X→Y→Z1→Z2” at the sequence measurement mode, the measurement
results of pen pressure are shown.
6. Register Setup
[Add 00H]: Setup Command.
[Add 01H]: Status of sequence mode.
[Write]:
Write the register data after setting the register bits.
[Read]:
Read the register data.
*Please refer to the AK4186 datasheet about register command functions.
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