CCS/TMS320F28335: SysCtrlRegs parameters

Eddjo

Tool/software: Code Composer Studio

I'm reviewing C200 Teaching Rom. In Lab,5 its about Digital I/O . I have some doubts :

Why these addresses for WDCR, SCSR, LOSPCP and PCLKCRO-3 ?

    SysCtrlRegs.WDCR = 0x0028;               // Watchdog enabled, 4.3 milliseconds
   SysCtrlRegs.SCSR = 0x0000;                // Watchdog will cause a reset
   SysCtrlRegs.PLLSTS.bit.DIVSEL = 2;
   SysCtrlRegs.PLLCR.bit.DIV = 10;          // 30MHz * 10 / 2 = 150 MHz SYSCLK
   SysCtrlRegs.HISPCP.all = 0x0001;      // SYSCLK / 2
SysCtrlRegs.LOSPCP.all = 0x0002;      // SYSCLK / 4
   SysCtrlRegs.PCLKCR0.all = 0x0000;
   SysCtrlRegs.PCLKCR1.all = 0x0000;
   SysCtrlRegs.PCLKCR3.all = 0x0000;

Regards

over 7 years ago

0 Veena Kamath over 7 years ago

TI__Mastermind 32695 points

Hi Eddjo,

Can you please clarify your question? Are you asking what are the addresses of those registers?

Regards,
Veena

0 Eddjo over 7 years ago in reply to Veena Kamath

Prodigy 160 points

Hi Veena
Thanks for your answer.

It's about the correct setup for the registers, e.g. why 0x0001 for SysCtrlRegs.HISPCP.all ? or 0x0028 for WDCR ?.

0 Veena Kamath over 7 years ago in reply to Eddjo

TI__Mastermind 32695 points

Hi Eddjo,

You can find the description of all the registers in the pdf link mentioned below. This provides the details what each bit in the register means. The code has brief comments on the register configuration as well

www.ti.com/.../sprufb0d.pdf

Hope this helps!

Regards,
Veena

0 Eddjo over 7 years ago in reply to Veena Kamath

Prodigy 160 points

Thanks for you answer.
I've understood all registers with your support

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CCS/TMS320F28335: SysCtrlRegs parameters