GPIO Dip Switch Settings

You need to perform certain dip switch settings before connection peripherals to the JH-7110 DevKit.

The following table shows the required GPIO dip switch settings.

Table 1. GPIO dip Switch Settings
GPIO Group GPIO Dip Switch for Function Remarks
Dip Switch Function
1 GPIO33 S2pin1: ON* MIPI_EDP_BL
2 GPIO39 S2pin2: ON PA_EN_H
GPIO41 S3pin2: ON LT8911EXB_RST
GPIO52 S3pin1: ON BT_EN_H
GPIO44 S4pin1: ON I2S_DSDIN
GPIO38 S4pin2: ON I2S_SCLK
GPIO45 S5pin2: ON UART_TXD_232
GPIO46 S5pin1: ON UART_RXD_232
GPIO53 S6pin2: ON BT_UART_TXD
GPIO54 S6pin1: ON BT_UART_RXD
GPIO55 S7pin2: ON BT_UART_RTS
GPIO56 S7pin1: ON BT_UART_CTS
GPIO61 S8pin2: ON I2S_ASDOUT
GPIO63 S8pin1: ON I2S_LRCK
EXT P0_5 S10pin2: ON SDIO1_SEL_H 1*
P0_7 S10pin1: ON MIPI_SEL_H
S9pin2: ON BT_DIS_N 2*
S9pin1: ON WL_DIS_N 3*
Note:
  • *: ON means connected, otherwise means disconnected.
  • 1*: It means you have selected the SD card mode. Otherwise, it means you have selected the WiFi mode.
  • 2*: WIFI switch for M.2 KEY E module, ON by default.
  • 3*: Bluetooth switch for M.2 KEY E module, ON by default.