LPC55S69 : Power configuration register 0 , PDRUNCFG0

EugeneHiihtaja — Wed, 04 Mar 2020 07:19:13 GMT

Hi !

Do I understand right and setting in this register is not vanish during PowerDown mode ?

__IO uint32_t PDRUNCFG0; /**< Controls the power to various analog blocks [Reset by: PoR, Pin Reset, Brown Out
Detectors Reset, Deep Power Down Reset, Software Reset], offset: 0xB8 */

But in UM, table 292 not all bits are documented or documented with different meaning :

For example in adc temp example :

/* Disable LDOGPADC power down */
POWER_DisablePD(kPDRUNCFG_PD_LDOGPADC); // kPDRUNCFG_PD_LDOGPADC = (1UL << 19),

/* Disable Temperature sensor power down. */
POWER_DisablePD(kPDRUNCFG_PD_TEMPSENS); // kPDRUNCFG_PD_TEMPSENS = (1UL << 14),

bit 14 is not documented

// It may be should wakeup adc controller but it is not used ?

kPDRUNCFG_PD_GPADC = (1UL << 15),

For my undestanding, all of those bits e.g. 19,14,15 need to be set to 1 one time and after that I can use TempSensor

like in example lpadc_temperature_measurement and reinit ADC every time after PowerDown mode

but PDRUNCFG0 settings need to be done once ?

Is this so ?

Regards,

Eugene

Re: LPC55S69 : Power configuration register 0 , PDRUNCFG0

xiangjun_rong — Fri, 06 Mar 2020 08:05:00 GMT

Hi, Eugene,

The bits 19,14,15 are NOT documented in the UM11126.pdf, I will notify AE team of the issue so that they can be written in next version.

Thank you for poi bting the issue.

XiangJun Rong

LPC MicrocontrollersのトピックLPC55S69 : Power configuration register 0 , PDRUNCFG0

LPC55S69 : Power configuration register 0 , PDRUNCFG0

Re: LPC55S69 : Power configuration register 0 , PDRUNCFG0