Hi Jon,

A UPC board, this is a Universal PWM/Servo Controller?
So a PPMC setup would not be of any help on this problem?
Just trying to offer help if I can, but no UPC here.

Kim


On 01/28/2012 10:50 PM, Jon Elson wrote:
> Hello, all,
> 
> I have just discovered a bug in the 2.5 hal/drivers/hal_ppmc.c driver.
> There are several
> optional features that are activated by options on the loadrt line.
> These are the extradac="0x00" and the timestamp="0x00" options.
> They appear to work separately, but when they both appear on the
> same loadrt line, then the timestamp option seems to be ignored.
> I detect this because the hal parameter ppmc.0.encoder.00.min-speed-estimate
> is not exported if both options are requested.
> 
> One other thing I noted is if I give an incorrect "slot code", I get an 
> error
> mesaage saying no board is at that address for the extradac option, but
> none for the timestamp option.  I have
> tried specifying the options in either order, same result.
> 
> I have also noticed that if you give an incorrect slot code for the extradac
> option, you get a specific error message, but an incorrect slot code
> for the timestamp option gives no message, but the option is not enabled
> in that case.
> 
> If you request both extradac and extradout it gives a specific message for
> that from line 637.
> 
> I wonder if anyone would be willing to take a look at the code.  I know
> this will be hard to debug without a UPC board, so I hope maybe somebody
> can see an obvious goof in the code.
> 
> Thanks,
> 
> Jon
> 
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