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Problem configuring integrator board with ecos


Hi,

We are using an ARM7 integrator board to run our software and use the following code to change the clock speed to 60 MHz instead of the default 20 MHz.

*(int *)(INTEGRATOR_HDR_LOCK) = INTEGRATOR_HDR_OSC_MEM_UNLOCK;
set_osc = *(int *)INTEGRATOR_HDR_OSC & 0x00000FFF;
set_osc += INTEGRATOR_HDR_OSC_MEM_60MHz;
*(int *)INTEGRATOR_HDR_OSC = set_osc;
*(int *)(INTEGRATOR_HDR_LOCK) = INTEGRATOR_HDR_OSC_MEM_UNLOCK + 1;

This works fine without eCos but when we combine it with an application using eCos it won't work.  We tried locating the code at different spots (cyg_prestart, cyg_user_start, in a thread function) but no changes are made to the register and clock speed.

Does anyone have a clue what might go wrong here?

Thanks, Joeri.


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