我按照Note改后,按下开关,发现PWRON和PMIC_ON_REQ全部变成1.5v。而且在不上电的状态下,PMIC_ON_REQ已经存在3.0v,当我按下开关后,PWRON和PMIC_ON_REQ全部变成1.5v,再上电就变成自动开机。还有,当我开机后,直接切断电源,PWRON和PMIC_ON_REQ仍然是1.5v,下次上电就是直接开机。
Note:
To turn off board "AUTO ON" feature, depopulate
R30 and R31, and populate U509. This feature has not
yet been tested. See the Freescale HW User
Guide for the Smart
Device board for
details (to be
published 2Q13).