Deep sleep mode in LPC55S16

[Balaji_KG]

I need basic configuration to wake the controller from deep sleep mode on LPC 55S16. Any guidance?

[xiangjun_rong · Accepted solution]

Hi,

First of all, you have to select or design the waking-up source, which can wake-up the LPC55S16 from deep-sleep mode.

Pls refer to the section 14.4.5.3 Param2: wakeup_interrupts in UM11295.pdf

For example, if you select the WAKEUP_GPIO_INT0_0, you have to design a hardware button on the PCB.

If you select WAKEUP_CTIMER0, you do not require to do anything on the PCB.

From software,the deep-sleep waking-up follows up the interrupt process, for example, you use WAKEUP_GPIO_INT0_0, you have to configure the PINT0  and select the pin, so that the pressing the pin can trigger an interrupt.

Pls refer to the an13166.pdf and corresponding firmware.

https://www.nxp.com.cn/docs/en/application-note/AN13166.pdf

Hope it can help you

BR

XiangJun Rong