Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

08/15/2014

AB 01:44 PM Software Development: RE: How to add aditional HPS GPIO's

In the case described of wanting to add GPIO's to drive/control an LED (output from the HPS) you do not need to alter the DTS file. The DTS additions were for Switch based GPIO's which are a special case in which their is a Linux driver ... Alexander Block

08/14/2014

AB 10:51 AM Software Development: How to add aditional HPS GPIO's

Posting on behalf of a customer:
On the MitySom .dts file, you specify some GPIOS like this: Alexander Block

AB 10:49 AM Software Development: RE: PCI-e Device Driver - munmap related error

Reporting that the customer solved their problem:
I've solved the problem.
Thread A which was signaling Thread B to terminate was doing a pthread_join after doing so.
I commented out the pthread_join and it worked perfectly fine... Alexander Block

08/13/2014

PB 04:21 PM Software Development: RE: Standard USB peripheral connection on MitySOM eval Board

Hi Mike,
Happy to hear that a procedure is needed because I tried many things to make it work (I noticed that in the 09/13 delivered image, my USB key was powered on, but not accessible).
I'll wait for your instructions.
Kind rega... Pierre-Yves BRETECHER

08/11/2014

MW 07:23 AM Software Development: RE: Miscellaneous questions

Note:
you need to add "meta-openembedded/meta-oe" as the layer, not just "meta-openembedded".
-Mike
Michael Williamson

MW 07:21 AM Software Development: RE: Miscellaneous questions

Hi,
Sorry. The i2c-tools recipe is part of the meta-openembedded layer that you don't get by default from the basic yocto process.
You need to download that layer (git clone) and add it to your build/conf/bblayers.conf file. Michael Williamson

PB 07:14 AM Software Development: RE: Miscellaneous questions

Hi Mike,
adding "i2c-tools" to IMAGE_INSTALL_append gives me this error while executing "bitbake core-image-basic" :
ERROR: Nothing RPROVIDES 'i2c-tools' (but /home/user/yocto/poky/meta/recipes-extended/images/core-image-basic.bb RDE... Pierre-Yves BRETECHER

08/04/2014

MW 10:06 AM Software Development: RE: Standard USB peripheral connection on MitySOM eval Board

Hello Mr. Bretecher,
We will try to get a procedure posted for this. Sorry for the delay.
-Mike
Michael Williamson

MW 10:05 AM Software Development: RE: Miscellaneous questions

Memtool and the i2c-utils aren't added to our reference filesystem image, but you could add it by modifying the IMAGE_INSTALL_append variable in your local.conf file to include "i2c-tools" as well as "memtool".
We will push an update ... Michael Williamson

MW 09:51 AM Software Development: RE: Performance problem with baremetal code

Hello Mr. Kempter,
We don't normally run / support bare-metal applications here (we find most folks get into more trouble using bare-metal with this class of processor).
It looks like the linux application is running at the correct... Michael Williamson

08/01/2014

CK 11:25 AM Software Development: Performance problem with baremetal code

I tried to do some performance analysis of ARM on MitySOM-5CSX regarding floating point performance in baremetal code. Therefore I wrote the two modules performance.c and mul.c.
*performace.c:* Christian Kempter