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asherman
Visitor II
July 23, 2003
Question

ST7Lite - Internal RC with RS232

  • July 23, 2003
  • 5 replies
  • 1085 views
Posted on July 23, 2003 at 12:43

ST7Lite - Internal RC with RS232

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    5 replies

    A
    ashermanAuthor
    Visitor II
    May 19, 2003
    Posted on May 19, 2003 at 07:53

    Hello All ,

    I want to use the ST7Lite05 with the Internal RC oscillator and to work with the SCI (RS232) communication .

    Do you think that there will be a problem with the communication in several computers because of the accuracy or not ?

    Shermantec
    I
    itsmejatinus
    Visitor II
    May 19, 2003
    Posted on May 19, 2003 at 11:54

    Internal RC has an accuracy of 1% as specified into the datsheet.

    S
    sisto
    Visitor II
    July 22, 2003
    Posted on July 22, 2003 at 13:31

    With RC clock You will have bit sample problems during a receiver session, with higher baud rates. I have used this solution with satisfaction for baud rates lower than 2000 bps.

    S
    simonharrison9
    Visitor II
    July 23, 2003
    Posted on July 23, 2003 at 08:55

    Hi,

    I'm running at 9600 with no problem.

    The only risk is when the supply changes,as this will change the clock freq.

    Simon

    Anglia
    I
    itsmejatinus
    Visitor II
    July 23, 2003
    Posted on July 23, 2003 at 12:43

    I have tested it from 2.4kbps to 19.2kbps without any problem with internal RC clock.

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