Buttons and LEDs
Copyright © 2020 Shenzhen Goodix Technology Co., Ltd. 10
7
Buttons and LEDs
The GR5515 SK Board integrates 6 buttons and 3 LEDs, with corresponding GR551x pins as follows:
Table 7-1 Corresponding pins to buttons/LEDs
Button/LED
GPIO Pin
Description
Note
Button1
GPIO14
S3 (LEFT)
-
Button2
GPIO15
S4 (RIGHT)
-
Button3
GPIO12
S1 (UP)
-
Button4
GPIO13
S2 (DOWN)
-
Button5
AON_GPIO1
S8 (OK)
AON_GPIO1. It can be configured to wake the system
up from sleep mode in application, just like the PCS
project in SDK.
Button6
CHIP_EN
S7 (RESET)
It is used for chip reset.
LED1
MSIO4
D104 (PWM controllable)
LED1 can be driven by different PWM modes.
LED2
GPIO4
D106 (user-defined)
-
LED3
D102 (J-Link status indicator)
It is connected to interface MCU to indicate J-Link
status. When it is powered on, it flashes; if J-Link
driver on the PC is ready, it remains on.
