LPC Microcontrollers中的主题 Re: lpc1853 RTC

lpc1853 RTC

lpcware — Wed, 15 Jun 2016 18:20:55 GMT

Content originally posted in LPCWare by dodge55 on Tue Feb 10 14:33:50 MST 2015
Are there any examples on the RTC setup? I can't seem to get the RTC branch clock started and so my RTC never starts. I'm 100% sure some of my clock or RTC registers aren't setup properly. But, I can't find any code examples that use the RTC, Keil or otherwise.

Sutton

Re: lpc1853 RTC

lpcware — Wed, 15 Jun 2016 18:20:56 GMT

Content originally posted in LPCWare by R2D2 on Tue Feb 10 14:50:18 MST 2015
LPCOpen :quest:

http://www.lpcware.com/content/nxpfile/lpcopen-software-development-platform-lpc18xx-packages-0

Re: lpc1853 RTC

lpcware — Wed, 15 Jun 2016 18:20:57 GMT

Content originally posted in LPCWare by dodge55 on Wed Feb 11 15:06:55 MST 2015
I've looked there. I haven't found any RTC code.

Re: lpc1853 RTC

lpcware — Wed, 15 Jun 2016 18:20:58 GMT

Content originally posted in LPCWare by R2D2 on Wed Feb 11 15:30:42 MST 2015

Quote: dodge55
I've looked there. I haven't found any RTC code.

:quest:

void Chip_RTC_ResetClockTickCounter(LPC_RTC_T *pRTC);
void Chip_RTC_Enable(LPC_RTC_T *pRTC, FunctionalState NewState);
void Chip_RTC_CntIncrIntConfig(LPC_RTC_T *pRTC, uint32_t cntrMask, FunctionalState NewState);
void Chip_RTC_AlarmIntConfig(LPC_RTC_T *pRTC, uint32_t alarmMask, FunctionalState NewState);
STATIC INLINE void Chip_RTC_SetTime(LPC_RTC_T *pRTC, RTC_TIMEINDEX_T Timetype, uint32_t TimeValue);
STATIC INLINE uint32_t Chip_RTC_GetTime(LPC_RTC_T *pRTC, RTC_TIMEINDEX_T Timetype);
void Chip_RTC_SetFullTime(LPC_RTC_T *pRTC, RTC_TIME_T *pFullTime);
void Chip_RTC_GetFullTime(LPC_RTC_T *pRTC, RTC_TIME_T *pFullTime);
STATIC INLINE void Chip_RTC_SetAlarmTime(LPC_RTC_T *pRTC, RTC_TIMEINDEX_T Timetype, uint32_t ALValue);
STATIC INLINE uint32_t Chip_RTC_GetAlarmTime(LPC_RTC_T *pRTC, RTC_TIMEINDEX_T Timetype);
void Chip_RTC_SetFullAlarmTime(LPC_RTC_T *pRTC, RTC_TIME_T *pFullTime);
void Chip_RTC_GetFullAlarmTime(LPC_RTC_T *pRTC, RTC_TIME_T *pFullTime);
STATIC INLINE void Chip_REGFILE_Write(LPC_REGFILE_T *pRegFile, uint8_t index, uint32_t value);
STATIC INLINE uint32_t Chip_REGFILE_Read(LPC_REGFILE_T *pRegFile, uint8_t index);
void Chip_RTC_CalibCounterCmd(LPC_RTC_T *pRTC, FunctionalState NewState);
STATIC INLINE void Chip_RTC_CalibConfig(LPC_RTC_T *pRTC, uint32_t CalibValue, uint8_t CalibDir);
STATIC INLINE void Chip_RTC_ClearIntPending(LPC_RTC_T *pRTC, uint32_t IntType);
STATIC INLINE IntStatus Chip_RTC_GetIntPending(LPC_RTC_T *pRTC, uint32_t IntType);
STATIC INLINE void Chip_RTC_EV_Config(LPC_RTC_T *pRTC, RTC_EV_CHANNEL_T ch, uint32_t flag);
STATIC INLINE void Chip_RTC_EV_SetMode(LPC_RTC_T *pRTC, RTC_EV_MODE_T mode);
STATIC INLINE uint8_t Chip_RTC_EV_GetStatus(LPC_RTC_T *pRTC);
STATIC INLINE void Chip_RTC_EV_ClearStatus(LPC_RTC_T *pRTC, uint32_t flag);
STATIC INLINE FlagStatus Chip_RTC_EV_GetChannelStatus(LPC_RTC_T *pRTC, RTC_EV_CHANNEL_T ch);
STATIC INLINE void Chip_RTC_EV_ClearChannelStatus(LPC_RTC_T *pRTC, RTC_EV_CHANNEL_T ch);
STATIC INLINE uint8_t Chip_RTC_EV_GetCounter(LPC_RTC_T *pRTC, RTC_EV_CHANNEL_T ch);
void Chip_RTC_EV_GetFirstTimeStamp(LPC_RTC_T *pRTC, RTC_EV_CHANNEL_T ch, RTC_EV_TIMESTAMP_T *pTimeStamp);
void Chip_RTC_EV_GetLastTimeStamp(LPC_RTC_T *pRTC, RTC_EV_CHANNEL_T ch, RTC_EV_TIMESTAMP_T *pTimeStamp);
void Chip_RTC_Init(LPC_RTC_T *pRTC);
void Chip_RTC_DeInit(LPC_RTC_T *pRTC);

Re: lpc1853 RTC

lpcware — Wed, 15 Jun 2016 18:20:58 GMT

Content originally posted in LPCWare by jeff3103747 on Mon Mar 30 23:10:17 MST 2015
It still isn't clear how to setup RTC. The manual doesn't help either.

For example, my RTC is backed up using battery, so after MCU reset, what should I do? What should be the sequence? Do I still call Chip_RTC_Init? If I do, does this disrupt RTC time?

Thanks! :-)

Re: lpc1853 RTC

lpcware — Wed, 15 Jun 2016 18:20:59 GMT

Content originally posted in LPCWare by embd02161991 on Tue Mar 31 23:17:11 MST 2015
Hi,

There is a RTC example in LPCOpen software package.It is under the 'periph' folder.
That can be a starting point.
RTC needs to be initialized only once and does not require to be initialized again.

You can find the package here : http://www.lpcware.com/content/nxpfile/lpcopen-software-development-platform-lpc18xx-packages-0

Thanks,
NXP Technical Support