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MIBSPI baudrate TMS570LC4357

sanchezbjc_fi-iee
Intellectual 560 points
Other Parts Discussed in Thread: HALCOGEN

Dear all,


I'm trying to change de baudrate in the HALCoGEN 4.05.02, but I can't configurate a baudrate that the final result will be 4MHz, Could you help me about this problem o exists a documentation with a equation to establish the correct values? I write differents values in the box of baudrate but I only obtain 3.3MHZ or 5MHz

 

Thank you

Juan Carlos

  • 0
    TI__Guru 68920 points
    Juan Carlos,

    You have VCLK1 frequency set to 10MHz which is lower than normal for this part. (normally 100Mhz).

    If you have 10Mhz and /2 this gives 5MHz. If you /3 this gives 3.33MHz.

    If you want 4MHz you need to increase VCLK1 to something that is an integer mulitple of 4MHz.

    The divider only supports integer divider values.