[PD] disis_spi problem on raspberry pi
Ivica Ico Bukvic
ico at vt.edu
Tue Sep 2 20:02:05 CEST 2014
On 09/02/2014 01:39 PM, Jack wrote:
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> I am trying to use [disis_spi] on my raspberry pi (Linux raspberrypi
> 3.6.11+ #538 PREEMPT Fri Aug 30 20:42:08 BST 2013 armv6l GNU/Linux
> ) with Pd 0.45.2.
> When I open the help patch 'disis_spi-help.pd' and click on [open
> /dev/spidev0.0(, in Pd console i get : could not open SPI device.
> I used to use a C++ program until now with which I used to open
> "/dev/spidev0.0" and all was OK.
> What can I do to solve this problem ?
I haven't tried the external with pd-vanilla, although there is no
reason I can think of that it would not work with vanilla. Did you make
sure to load the necessary drivers (I assume you did since you mentioned
you used to access it before via a different application, but if you
loaded them manually and have rebooted RPi since, they would not be
necessarily loaded this time around). Just to be sure try:
lsmod | grep spi
...and see if it lists spi-bcm2708, if not, do:
sudo modprobe spi-bcm2708
sudo modprobe i2c-bcm2708
If that works, you may want to add those at the bottom of your
/etc/modules config file (one module per line, like so):
This will ensure they get loaded every time you start the RPi.
BTW, which gen RPi do you have?
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Ivica Ico Bukvic, D.M.A.
ICAT Senior Fellow
School of Performing Arts - 0141
Blacksburg, VA 24061
ico at vt.edu
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