CCS/tms320f28379d: system clock with TBPRD

kudithi nageswararao

Part Number: TMS320F28379D
Other Parts Discussed in Thread: LAUNCHXL-F28379D

Tool/software: Code Composer Studio

i am using TMS320F28379D-Launchpad(LAUNCHXL-F28379D) when i worked for PWM genareting i couldn't understand the setting of sysclk/pllsysclk and EPWMCLk with TBPRD.

please give clear explanation for this to set TBPRD for my requirement.

my requirement is 20KHz PWM.

thank you

K.N.Rao

over 8 years ago

0 Vasudha Bhadoria over 8 years ago

TI__Genius 10845 points

Hi Nageshwara,

I think this has been covered in the below post:
e2e.ti.com/.../621257

Thanks
Vasudha

0 kudithi nageswararao over 8 years ago in reply to Vasudha Bhadoria

Expert 1055 points

Hi Vasudha
thank you
but i run with this tow seetings and i got TBPRD = 5000
CRT for up_down mode itself .

ClkCfgRegs.SYSCLKDIVSEL.bit.PLLSYSCLKDIV =0;
ClkCfgRegs.PERCLKDIVSEL.bit.EPWMCLKDIV=0;
EPwm1Regs.TBCTL.bit.HSPCLKDIV = 0;
EPwm1Regs.TBCTL.bit.CLKDIV = 0;
thank you very much...

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CCS/tms320f28379d: system clock with TBPRD