Several pins in the upper left corner are J601 and J801, respectively.
J601:
First row of two pins: jumper caps can be used to shorten the function:
- Connection: Automatically starts when the power supply is switched on
- Disconnect: Need to press the top middle of the small button 3-4 seconds to start
Second row of two pins:
- Connection: You can burn the first stage of the boot loader to EMMC, you must first connect the USB OTG to the PC.
- Disconnect: Start loading bootloader program from eMMC
The third row of two pins:
- Connection: Gpio3_1 in drop-down state
- Disconnect: Gpio3_1 in pull-up state
HIKEY96 Board recommends using the output is [email protected] power.
J801 is the UART0 pin, can use the DuPont line to connect the USB to the serial port to see the bootloader stage printing information.
S601 is a small button:
- If the automatic start of the pin is disconnected, then long press the key is to turn off the power
- Press and release to turn off the power
- Reset if the key is pressed for more than 4 seconds
The upper row of sockets is a low-speed expansion connection:
The white row below is high speed:
Le Meridien hikey 96Board