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TMS570LS3137 Bootup Issue

Hi,

We have configured ECLK  to 1.25Khz, After a sudden power off and power on, for certain duration ECLK is showing frequency of 40Hz(when we trace back, VCLK is 2.4Mhz and system freq is VCLK*2 = 5Mhz).

This is happening randomly.

Then we configured ECLK to 5Khz, after sudden power off and power on , ECLK was changing to 156.25Hz for some duration(156 Hz -> VCLK = 2.4Mhz, system freq is 5Mhz).

Why is the ECLK behaving like this? It was found that crystal oscillator freq is constantly 16Mhz.

Regards,

Archana