LPC802 使用SDK 无法唤醒

[vector123456]

各位好，我使用LPC802，SDK使用SDK_2.5.0_LPCXpresso802，

DEMO使用\boards\lpcxpresso802\demo_apps\power_mode_switch_lpc  进入Power down模式时，使用WKT 能正常唤醒，但是代码中开了BOD 如下：

POWER_EnterPowerDown(DEMO_ACTIVE_IN_DEEPSLEEP);

#define DEMO_ACTIVE_IN_DEEPSLEEP (kPDSLEEPCFG_DeepSleepBODActive | kPDSLEEPCFG_DeepSleepLPOscActive)

如果不开BOD  即：POWER_EnterPowerDown(kPDSLEEPCFG_DeepSleepLPOscActive);  。那么就无法唤醒了！

请问是不是SDK中存在问题？

[jeremyzhou]

Hi vector guo,

非常感谢使用NXP产品，很高兴为你提供技术支持！

好的，我待会测试复现一下现象。

Have a great day,

TIC

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[jeremyzhou · Accepted solution]

Hi vector guo,

测试了复现了问题，解决方式是如果你不想设置BOD_PD，你需要将PDAWAKECFG中的BOD_PD也要设置成Powered down（代码如下所示），不然会直接复位的。

    /* remain active during power down mode */
    SYSCON->PDSLEEPCFG &= ~activePart;
    SYSCON->BODCTRL &= ~(1<<4);                          // Disable BOD reset before de-powering BOD
    SYSCON->PDRUNCFG |= 1<<3;


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Have a great day,
TIC

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[vector123456]

您的答案是正确的，同时也已经有线下FAE帮助我们解决问题。感谢！