• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 31 subscribers
  • Views 280 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.

RM57L843: SCI baud rate setting

Annie Liu
Genius 10295 points
Part Number: RM57L843


Hi Team,

VCLK is set to 70MHz. 4 SCIs are used, 3 of which are set to 115200 baud rate (actually 115131). 1 of them is set to 384000 (actually 397727). 

The bit error rate of 384000 is too high. But if customer changes VCLK, the other 3 115200 will be affected. Customer would like to ask if there is another way to set a separate clock for a certain SCI? for baud rate configuration

Thanks,

Annie

  • 0
    TI__Guru 73501 points

    Hi Annie,

    We can not apply different VCLK's for different instances of SCI. All instances of SCI will operate only on VLCK1 only.
    But there is an another way to do this, i.e. implementing UART on N2HET. There is a way to implement UART on N2HET, u can try that for 384000 baud rate UART. If we did this then all SCI UART instances will operate on VCLK1 and the SCI UART implemented on N2HET will be operate on VCLK2

    Here is an application note to implement UART on N2HET

    Template: Application Report Template (Word)

    Here is an example code on RM46

    N2HET_EMU_UART.zip

    --

    Thanks & Regards,

    Jagadish.