need clear output for RTC using nRF52832

[Ask123]

i have test with RTC using nrf_calender.c.

It will prints output data on terminal window.

But, I didn't recognize the actual data.

Output data is mentioned below,

C2C1C1CeCeClCa:C C/CC CbCa6C1C6C1CiCaCa
C2C1C1CeCeClCa:C C/CC CbCa6C1C6C1CiCaCa
C2C1C1CeCeClCa:C C/CC CbCa6C1C6C1CiCaCa
C2C1C1CeCeClCa:C C/CC CbCa6C1C6C1CiCaCa
C2C1C1CeCeClCa:C C/CC CbCa6C1C6C1CiCaCa
C2C1C1CeCeClCa:C C/CC CbCa6C1C6C1CiCaCa
C2C1C1CeCeClCa:C C/CC CbCa6C1C6C1CiCaCa
C2C1C1CeCeClCa:C C/CC CbCa6C1C6C1CiCaCa
C2C1C1CeCeClCa:C C/CC CbCa6C1C6C1CiCaCa

Thanks for advance.

[tesc]

Hi,

Is that all the data you get in the terminal?

Please check that flow control and baudrate are set appropriately. If you use the nrf5-calendar-example then the baudrate is 115200 and flow control is enabled. If those settings are correct in the terminal, then you can check that you have configured the correct pins for UART for the board that you are using.

Regards,
Terje

[Ask123]

Sorry. now the uart is working good. Time delay is the issue.

but the RTC clock not working properly. kindly give the solution as soon as possible.

In the while loop, i just print the current time printf("Calibrated time:\t%s\r\n", nrf_cal_get_time_string(true));

But it prints only as follows. 

Calibrated tim1Calibrated time1Calibrated timeCalibrated time1Calibrated time1Calibrated timeCalibrated time Calibrated timeCalibrated time1Calibrated time:Calibrated timeCalibrated time6Calibrated time1Calibrated tim:Calibrated time Calibrated timeCalibrated time2Calibrated time0Calibrated timeCalibrated time1Calibrated time
Calibrated timCalibrated time1Calibrated timeCalibrated time/Calibrated time:Calibrated timeCalibrated time9Calibrated timeCalibrated time1Calibrated time:Calibrated timeCalibrated time6Calibrated time1Calibrated tim:Calibrated time-Calibrated timeCalibrated time2Calibrated time0Calibrated timeCalibrated time1Calibrated time
Calibrated tim1Calibrated time1Calibrated timeCalibrated time1Calibrated time1Calibrated timeCalibrated time Calibrated timeCalibrated time1Calibrated time:Calibrated timeCalibrated time6Calibrated time1Calibrated tim:Calibrated 

[tesc]

Hi,

How tight is the loop? In the nrf5-calendar-example time printing is controlled over UART, and so there will be a natural delay between each time the value is printed. It may be an issue with the lifetime of the strings to print, or that the memory used for the time string within the loop or within nrf_cal_get_time_string gets changed for some reason?

Regards,
Terje

[Ask123]

Hi,

I give the the NRFX_DELAY_US(1000); before  and after printing.

Now, it will prints the correct date and time. Thanks for your support.

12/16/19 - 09:59:05

12/16/19 - 09:59:05

Currently i use external clock for RTC0. How to use internal RTC2 with BLE?

Also, now i'm directly program using segger studio. So, it have Softdevice configuration.

How to use separate Softdevice + Hex + DFU using nRFgo studio. 

[tesc]

HI,

Please keep to the topic, and create new threads for new questions that are not directly related to the original question. This makes it easier to find answers for people with the same question later. You are also likely to get answers more quickly, as other users see the topic of the new thread and may decide to answer it before we do.

I consider both the RTC / BLE question and the DFU question to deserve their own thread. But before you ask, please do a search here on DevZone for answers, as I am sure you will find information on both. Especially now that we are getting close to holiday season with limited staffing from our side, an extra round of searches may save you a lot of time in the end.

Regards,
Terje