Compiler/CC2540: is there inbuilt RTC module in cc2540....? or in cc2541...?

Prashant Shirur

Part Number: CC2540
Other Parts Discussed in Thread: CC2541,

Tool/software: TI C/C++ Compiler

hello, i want to interface rtc with cc2540 so is there any rtc module in cc2540 or cc2541 , or else in which controller has inbuilt rtc module please let me anyone knew it.... thank you

over 6 years ago

0 YiKai Chen over 6 years ago

Guru 735685 points

There is no RTC module in CC254x.

0 Prashant Shirur over 6 years ago in reply to YiKai Chen

Prodigy 240 points

then what i do bro...? my cc2540 is not supported with external i2c and i didn't understand why they given "OSAL_Clock.h" file in simplebleperipheral. and whatever got links, lt could not open, so please somebody give me the suggestion.... if you worked on this or do you have source code am very happy and thankful to you....

0 YiKai Chen over 6 years ago in reply to Prashant Shirur

Guru 735685 points

You can use CC2540 timer to do RTC but it is not accurate so you can sync time with BLE host.

0 Christin Lee over 6 years ago in reply to Prashant Shirur

TI__Guru 56215 points

Hi,

There is RTC in CC26xx but not in CC25xx.
CC254x supports I2C, so I am not sure what you said it's not supported.

How accurate the clock has to be? What are you trying to do?

0 Christin Lee over 6 years ago in reply to Prashant Shirur

TI__Guru 56215 points

Can you provide the information I asked in the above post so we can assist you?

0 Christin Lee over 6 years ago in reply to Christin Lee

TI__Guru 56215 points

Close thread due to inactivity.

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Compiler/CC2540: is there inbuilt RTC module in cc2540....? or in cc2541...?