LPC Microcontrollers中的主题 LPC4350 RTC Driver in LPC43xx CMSIS Driver Library https://community.nxp.com/t5/LPC-Microcontrollers/LPC4350-RTC-Driver-in-LPC43xx-CMSIS-Driver-Library/m-p/554829#M14834 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by gregd on Fri Sep 21 11:46:50 MST 2012</STRONG><BR /><SPAN>When you call the RTC_GetFullTime function in lpc43xx.c, does this automatically handle cases where the second is changing during the call - Could part of the values be from one second and the rest from another?&nbsp; The user manual doesn't really specify if the values are latched when reading multiple registers.&nbsp; </SPAN><BR /><BR /><SPAN>What about the RTC_SetFullTime function?&nbsp; Is it guaranteed to set the time correctly?</SPAN><BR /><BR /><SPAN>It would be nice if there was a function that sets the time and waits for the new time to go into effect.&nbsp; It takes almost 2 seconds before the new time is readable.&nbsp; If you read the RTC too early, you will get the old time from the clock.&nbsp; This can cause lots of issues if your code is using the RTC for time based calculations.</SPAN><BR /><BR /><SPAN>I don't guess there is any way to apply the new time immediately is there?</SPAN><BR /><BR /><SPAN>Thanks</SPAN><BR /><SPAN>Greg Dunn</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:37:33 GMT lpcware 2016-06-15T18:37:33Z LPC4350 RTC Driver in LPC43xx CMSIS Driver Library https://community.nxp.com/t5/LPC-Microcontrollers/LPC4350-RTC-Driver-in-LPC43xx-CMSIS-Driver-Library/m-p/554829#M14834 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by gregd on Fri Sep 21 11:46:50 MST 2012</STRONG><BR /><SPAN>When you call the RTC_GetFullTime function in lpc43xx.c, does this automatically handle cases where the second is changing during the call - Could part of the values be from one second and the rest from another?&nbsp; The user manual doesn't really specify if the values are latched when reading multiple registers.&nbsp; </SPAN><BR /><BR /><SPAN>What about the RTC_SetFullTime function?&nbsp; Is it guaranteed to set the time correctly?</SPAN><BR /><BR /><SPAN>It would be nice if there was a function that sets the time and waits for the new time to go into effect.&nbsp; It takes almost 2 seconds before the new time is readable.&nbsp; If you read the RTC too early, you will get the old time from the clock.&nbsp; This can cause lots of issues if your code is using the RTC for time based calculations.</SPAN><BR /><BR /><SPAN>I don't guess there is any way to apply the new time immediately is there?</SPAN><BR /><BR /><SPAN>Thanks</SPAN><BR /><SPAN>Greg Dunn</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:37:33 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC4350-RTC-Driver-in-LPC43xx-CMSIS-Driver-Library/m-p/554829#M14834 lpcware 2016-06-15T18:37:33Z