CCS/MSP432E401Y: Device not recognized after changing Sys Clock

Tiemo Schoettke1

Prodigy 211 points

Part Number: MSP432E401Y

Tool/software: Code Composer Studio

Hi,

I did some experiences using "ti/devices/msp432e4/driverlib/driverlib.h".

After I added, compiled and loaded the line:

SysCtlClockFreqSet( SYSCTL_USE_PLL, SYSCTL_CFG_VCO_480 );

The Launchpad is not recognized anymore.

Is it possible that this command caused that problem? I never had it before... Did not change any setting in my CCS project.

Regards

Tiemo

over 6 years ago

0 Chris Sterzik over 6 years ago

TI__Guru 70291 points

The API should look like this:

    /* Run from the PLL at 120 MHz */
    getSystemClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
                                             SYSCTL_OSC_MAIN |
                                             SYSCTL_USE_PLL |
                                             SYSCTL_CFG_VCO_480),
                                            120000000);

Please see the examples found here:

http://dev.ti.com/tirex/explore/node?node=AHuMXn0JNAfhu2ng-3xZzg__J4.hfJy__LATEST

Regards,

Chris

0 Chris Sterzik over 6 years ago in reply to Chris Sterzik

TI__Guru 70291 points

If the device is locked, then please follow the procedure found in section 5.3.1 of SLAA777 for unlock.

Regards,

Chris

0 Tiemo Schoettke1 over 6 years ago in reply to Chris Sterzik

TI__Prodigy 211 points

ok, I see. That works.

Thank you!

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CCS/MSP432E401Y: Device not recognized after changing Sys Clock