Terasic VEEK-MT2, Руководство пользователя

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VEEK-MT2 User Manual
21
www.terasic.com
July 4, 2016
The purpose of signals for this IP is described in
Table 3-8. The IP requires a 50 MHz signal as a reference clock to the iCLK pin and system reset signal
to the iRSTN. INT_n, The signals of I2C_SCLK, and I2C_SDAT pins should be connected to the
MTL_TOUCH_INT_n, MTL_TOUCH_I2C_SCL, and MTL_TOUCH_I2C_SDA signals in the 2x20
GPIO header, respectively.
When touch activity occurs, the control application should check whether the value of
oREG_GESTURE matches a pre-defined gesture ID defined in Table 3 4 and the relative X/Y
coordinates can be derived from oREG_X and oREG_Y. Figure 3 1 shows the signaltap II waveform of
the IP. When the oREADY rises, it indicates touch activity, and the associated information can be
collected from the oREG_X1~ oREG_X5, oREG_Y1~ oREG_Y5, oREG_TOUCH_COUNT, and
oREG_GESTURE pins.
Figure 3-9 Signaltap II Waveform for Multi-Touch IP