CCS/MSP430FR5969: Clock Configuration Using Driverlib for MSP430FR5969 and MSP430F5529

Yogesh Chaudhary

Part Number: MSP430FR5969
Other Parts Discussed in Thread: MSP430F5529

Tool/software: Code Composer Studio

Hello,

I am new with MSP430F5529 and FR5969so, I want to configure my clocks and i watched many tutorials of f5529 it's too complicated because of its orthogonal property.

I have some questions please help me i need to configure my clock for LOW power device a sensor which upload data to server once in a day so most of the time MCU remains in sleep mode( LP4 mode).

My peripheral:

GSM module (UART)
Some GPIO for controlling Hardware
A ultrasonic AFE Chip (UART)
MCU RTC Alarm for wakeup once in 24 hours or Everyday.

which clock is best for this application and how to configure RTC Alarm in FR 5969.

over 6 years ago

0 Gary Gao over 6 years ago

TI__Mastermind 37585 points

I suggest the XT1 for the clock source, due to the internal REFO have a 15uA current. For the configure of RTC.For the configuration you can refer to the demo in the resource explorer.

0 Yogesh Chaudhary over 6 years ago in reply to Gary Gao

Intellectual 400 points

Hello gary, Thanks For you reply,
We need to interface UART GSM module so internal REFO is good for UART communication. I mean SMCLK configuration or XT2 for SMCLK and MCLK?
Thanks,

0 Gary Gao over 6 years ago in reply to Yogesh Chaudhary

TI__Mastermind 37585 points

Hi Yogesh
Have you found the clock configuration demo code? I suggest you can use the XT1 for the clock source. The UART you can use the SMCLK for the UART module. That will have lower power consumption

0 Yogesh Chaudhary over 6 years ago in reply to Gary Gao

Intellectual 400 points

Thanks Gary for your reply and i also configure my clock same as you suggest.

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CCS/MSP430FR5969: Clock Configuration Using Driverlib for MSP430FR5969 and MSP430F5529