• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 80 subscribers
  • Views 315 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

MSP430FR6972: MSP430FR6972

luigi Quaglia
Expert 1155 points
Part Number: MSP430FR6972


Tool/software:

HI 

I have a simple question, this is only to clarify 

I see that the MSp430FR6972 have maximum frequency 16Mhz, but on the data sheet There are many sections 

where is reported until 24Mhz, can work also with 24Mhz crystal oscillator ?  

About the Fram Write proctection did you have some application Note ? I would like to protect all Fram and 

would like to using the INFOD and INFOC like eeprom 

other, What are the differences with MSP430FR69721 I have try to understand but nof find it 

Best Regards 

Luigi 

  • 0
    Guru 100405 points

    1) You can use a 24MHz crystal for HFXT [Ref datasheet (SLASE23E) Table 5-5] but the CPU is limited to 16MHz [datasheet Sec 5.3], so you would have to apply a clock divider [Sec 5.3 note (9)] to bring it into spec. The available clock dividers in CSCTL3:DIVM [Ref User Guide (SLAU367P) Table 3-7] are all integers, so the best you could do with a 24MHz crystal is 24/2=12MHz.

    2) The FRAM "How-To and Best Practices" App Report (SLAA628B) chapter 12 seems to cover memory protection pretty well. Except in very unusual cases, the CCS MPU Editor ("Build Settings->General->MPU [Tab]") is the easiest way.

    3) As far as I know, the only difference between the FR6972 and FR69721 is that the former's BSL uses UART and the latter I2C [Ref datasheet Tables 3-1/3-2].

    [Edit: Minor clarification]

  • +1 in reply to Bruce McKenney
    Expert 1155 points

    Hi Bruce 

    Thank you for your support 

    3) As far as I know, the only difference between the FR6972 and FR69721 is that the former's BSL uses UART and the latter I2C [Ref datasheet Tables 3-1/3-

    I had seen this one but I thought there were other differences too.

    Regards 

    Luigi 

  • +1 in reply to luigi Quaglia
    TI__Mastermind 19947 points

    Hi, 

    luigi Quaglia said:
    3) As far as I know, the only difference between the FR6972 and FR69721 is that the former's BSL uses UART and the latter I2C [Ref datasheet Tables 3-1/3-

    I only found the difference, BSL interface.

    Regare,

    Helic

**Attention** This is a public forum