powerpc mvme5500 clock off by factor of 150

Peter Dufault dufault at hda.com
Mon Mar 7 19:04:09 UTC 2005

On Mar 7, 2005, at 1:30 PM, Till Straumann wrote:

> As far as I can see (looking at src in CVS) there is a bug in the BSP
> mvme5500/irq/irq.c comments the line (BSP_install_rtems_irq_handler())
> /*
>     * Enable interrupt on device
>        irq->on(irq);*/
> --> clockOn() is not called on this BSP. Note that eventually (i.e.,
> after the decrementer reaching zero from the initial 0xffffffff count
> [~250seconds at a decr/timebase clock rate of 16MHz]) the algorithm
> works normally. Since Kate is probably testing on a 'live' system
> using dynamic loading she is not observing the bug. Peter, however
> seems to work with the statically linked test app where the bug
> manifests itself.

Enabling that results in "Exception handler called for exception 7", a 
register dump, and "Unrecoverable exception!!! Push reset button", so I 
push it.

Something apparently isn't initialized.


Peter Dufault
HD Associates, Inc.

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