MeiG_SLM550_Hardware Design Manual
MeiG Smart Technology Co., Ltd
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Important note: When designing the camera function, you need to pay attention to the position of the
connector. There will be a small person in the specification of the camera to indicate the imaging
direction. You need to ensure that the villain is standing on the long side of the LCD, otherwise the
camera will be flipped. The software cannot be adjusted at 90°. As shown in the two figures below.
Figure 27 Camera imaging diagram
4.7 Capacitive Touch Interface
The module provides a set of I2C interfaces that can be used to connect capacitive touches while
providing the required power and interrupt pins. The default interface pins for capacitive touch software
are defined as follows:
Table 10 Capacitive Touch Interface Definitions
Name
Pin
Input/Output
Description
GPIO6_TP_I2C3_SDA
48
I/O
The capacitive touch I2C
interface needs to be pulled up
toVREG_L5_1P8
GPIO7_TP_I2C3_SCL
47
I/O
GPIO80_TP_INT_N
30
I
TP Interrupt
GPIO71_TP_RESET_N
31
O
TP Reset
VREG_L6_1P8
125
O
1.8V Power supply to TP I/O
VREG_L17_2P8
156
O
2.8V Power supply to TP VDD
SIM
卡座
SIM
卡座
