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How to unlock TMS320F28335 device

gopu t
Prodigy 80 points

Other Parts Discussed in Thread: UNIFLASH

I have used 30Mhz external crystal and PLLCR=10, DIV=2, so SYSCLKOUT = 30x10/2 = 150MHZ is the max clock frequency for this device.

But wrongly i gave DIV factor = 3  (div by 1), so SYSCLKOUT = 30x10/1 = 300MHZ. Then  it always shows the following error:

//Error output//

C28xx: GEL Output:
ADC Calibration not complete, check if device is unlocked and recalibrate.C28xx: GEL Output:
ADC Calibration not complete, check if device is unlocked and recalibrate.C28xx: Flash Programmer: Device is locked or not connected. Operation cancelled.
C28xx: GEL: File: C:\Documents and Settings\user\My Documents\Example_2833xCpuTimer_016A_aug14\Debug\Example_2833xCpuTimer.out: Load failed.

//---//

Help me how to solve my above problem to make my device working.

  • 0
    Guru 192875 points

    Hi Gopu,

    gopu t said:
    But wrongly i gave DIV factor = 3  (div by 1), so SYSCLKOUT = 30x10/1 = 300MHZ. Then  it always shows the following error:

    I don't think that the flash might've got locked. But do try unlocing it using CCS Uniflash and inform us what you observe.

    Regards,

    Gautam