LPC1788 RTC's General purpose registers

lihai — Thu, 23 Aug 2018 03:09:12 GMT

Dear All,

I have a question about LPC1788 RTC's General purpose registers 0-4, I write 1 to General purpose registers 0 , then power off(without battery powered) , General purpose registers 0 value changed to 0 after power on.

the user manual said : These registers can be used to store import information when the main power supply is off . It seems that General purpose registers can not store information without main power supply & battery power supply?

Re: LPC1788 RTC's General purpose registers

soledad — Thu, 23 Aug 2018 13:27:13 GMT

Hi,

The RTC block includes 20 bytes of battery-powered backup registers, allowing system status to be stored when the rest of the chip is powered off. Battery power can be supplied from a standard 3 V Lithium button cell.

I hope this clarifies.

Have a great day,
Sol

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LPC MicrocontrollersのトピックRe: LPC1788 RTC's General purpose registers

LPC1788 RTC's General purpose registers

Re: LPC1788 RTC's General purpose registers