Re: pci-das6031 board

From: Frank Mori Hess <fmhess_at_users.sourceforge.net> · Date: Sun, 18 Apr 2004 13:11:21 -0400

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Nzoji,

Would you try the following patch and see if it helps?

- --- comedi/drivers/cb_pcidas64.c        30 Oct 2003 23:00:26 -0000      1.113
+++ comedi/drivers/cb_pcidas64.c        18 Apr 2004 17:07:30 -0000
_at__at_ -1485,7 +1485,7 _at__at_
        comedi_spin_lock_irqsave( &dev->spinlock, flags );

        // bit should be set for 6025, although docs say boards with <= 16 chans should be cleared XXX
- -       if( 1 )
+       if(board(dev)->ai_se_chans <= 16)
                priv(dev)->adc_control1_bits |= ADC_QUEUE_CONFIG_BIT;
        writew( priv(dev)->adc_control1_bits, priv(dev)->main_iobase + ADC_CONTROL1_REG );

On Wednesday 14 April 2004 12:22 pm, nzoji_at_portugalmail.pt wrote:
> Hello,
>
> I have a PCI-DAS6031 board from Measurement Computing and I'm working
> with the comedi driver module cb_pcidas64.
>
> The problem is that I only can read input voltages between -0.1 and
> 0.1V. Below this range I read 0 and above this range I read 65535 for
> any range (0 to 13) I choose.
>
> Has anyone worked successfully with this board and comedi drivers?
>
> Thanks in advance.
>
>
> Nzoji Hipolito
> Electronics Eng. / PhD Student
> Universidade do Minho - Portugal
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- --
Frank

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