User's Manual
Table Of Contents
- 1 Document information
- 2 Hardware design block diagram
- 3 Power Consumption
- 4 Hardware capabilities
- 5 Connector datasheet
- 6 PCB production information
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4.6.3 Touch Circuits
The J4 is a touchscreen signal connector that communicates with the RK3288 via I2C.
Figure
19 The touch connector circuit
4.6.4 EDP interface
The board is equipped with an EDP interface that communicates with the RK3288 with three
differential signals, each connected to the CN1 interface after connecting to the common-mode
inductor in series.
Figure 20 EDP output circuit
Figure 21 EDP interface circuit