beaglebone 损坏！

1.NOTE: Pressing the RESET button on the board will NOT result in a change of the boot mode. You MUST remove power and reapply power to change the boot mode. The boot pins are sampled during power on reset from the PMIC to the processor.

The reset button on the board is a warm reset only and will not force a boot mode change.

2.NOTE: Refer to the TPS65217C documentation before connecting anything to these pins.

3.NOTE: Do not connect 5V logic level signals to these pins or the board will be damaged.

4.NOTE: DO NOT APPLY VOLTAGE TO ANY I/O PIN WHEN POWER IS NOT SUPPLIED TO THE BOARD. IT WILL DAMAGE THE PROCESSOR AND VOID THE WARRANTY.

NO PINS ARE TO BE DRIVEN UNTIL AFTER THE SYS_RESET LINE GOES HIGH.

5.There are several precautions that need to me taken when working with the expansion

headers to prevent damage to the board.

1) Do not apply any voltages to any I/O pins when the board is not powered on.

2) Do not drive any external signals into the I/O pins until after the VDD_3V3B rail is up.

3) Do not apply any voltages that are generated from external sources.

4) If voltages are generated from the VDD_5V signal, those supplies must not become

active until after the VDD_3V3B rail is up.

5) If you are applying signals from other boards into the expansion headers, make sure

you power the board up after you power up the BeagleBone Black or make the

connections after power is applied on both boards.

Powering the processor via its I/O pins can cause damage to the processor.