Activity
From 07/23/2016 to 08/21/2016
08/17/2016
- SS 10:35 AM FPGA Development: RE: HDMI Output splash screen is intermittently displayed on boot
- Hi Dan,
See attached. The index.txt file in the zip package describes each scope shot. Let me know what other measurements I can take.
I've read there is a Quartus reference design for the Microtronix card. Have you compared you...
08/16/2016
- SS 03:35 PM FPGA Development: RE: HDMI Output splash screen is intermittently displayed on boot
- Hi Dan,
Sure thing, I can take these shots first thing in the morning and get them back to you.
Steve - DV 01:12 PM FPGA Development: RE: HDMI Output splash screen is intermittently displayed on boot
- Hi Steve,
Hmm good point that it you've already vetted the monitor you're using. Seeing as you're getting the display to come out of standby and you're boot log didn't have any I2C errors, I'm going to assume the configuration of the ... - SS 07:39 AM FPGA Development: RE: HDMI Output splash screen is intermittently displayed on boot
- Hi Dan,
Thanks for the detail on the I2C fix.
I've tested on two monitors. On one of them, I am certain it supports 1280x720 because I can set it to that resolution when driving it with my PC. Additionally, this monitor is the on... - BW 03:05 PM Software Development: RE: Network Communication MitySOM Custom Kernel Configuration
- Jonathan/Dan,
Solved.... Yes, that was the difference in the two kernels, ipv6 was being built as a module in the custom. Changed to be built into kernel and all works as expected. Thanks for the support.
Brian
08/15/2016
- DV 04:12 PM Software Development: RE: Network Communication MitySOM Custom Kernel Configuration
- Hi Brian,
I've updated the wiki for building the kernel and have added steps for building the modules, it can be found here: https://support.criticallink.com/redmine/projects/mityarm-5cs/wiki/Linux_Kernel
The steps at the bottom (... - JC 03:20 PM Software Development: RE: Network Communication MitySOM Custom Kernel Configuration
- Both udp6/tcp6 and '::' points to an error with ipv6 support. Looking at your .config file shows ipv6 being built as a module (CONFIG_IPV6=m). If you either build ipv6 support into your kernel or insert the kernel module and see if thi...
- BW 03:05 PM Software Development: RE: Network Communication MitySOM Custom Kernel Configuration
- Jonathan,
So I built a new kernel setting the base configuration as mitysom5csx_devkit_defconfig without doing the menuconfig and building the uImage. Then I added that uImage to the /boot folder in the rootfs that is on the SD image ... - DV 03:11 PM FPGA Development: RE: HDMI Output splash screen is intermittently displayed on boot
- Hi Steve,
Sorry for the delay, I was travelling Friday afternoon.
To fix for the I2C issue was that I resampled and debounced the I2C signals coming into the FPGA before feeding them to the HPS I2C master. I expected the HPS to ta... - SS 10:45 AM FPGA Development: RE: HDMI Output splash screen is intermittently displayed on boot
- Hi Dan,
This image doesn't show anything on my monitor. Upon first booting it, right after the console printed "Setting Up HDMI Transmitter", the monitor came out of standby but the screen stayed black. After powering the system off...
08/12/2016
- BW 03:27 PM Software Development: RE: Network Communication MitySOM Custom Kernel Configuration
- I have both the L2_3Y8 and H4_3YA.. Attached is the config file for my 3YA. Dont think it really matters. Both error with the Firefox COAP.
Thanks for the help,
Brian - JC 02:25 PM Software Development: RE: Network Communication MitySOM Custom Kernel Configuration
- Can you post your .config file?
Thanks
Jonathan Cormier - Hello,
I have a MitySOM dev board with the 5CSE-H4-3YA. I am able to use the pre-built binary SD card image for network communication using Firefox Copper with udp COAP packets. The program has no problem identifying the host IP infor... - SS 12:15 PM FPGA Development: RE: HDMI Output splash screen is intermittently displayed on boot
- Hi Dan
Thanks for this. I can try the image on Monday and report back results.
Can you provide a little detail on the fix? Alternately if it is in Git (or will be there shortly), I can just look at the commit.
Best,
Steve - DV 11:56 AM FPGA Development: RE: HDMI Output splash screen is intermittently displayed on boot
- Hello Steve,
I've created an alpha SD card image that from my testing has fixed the i2c failures. The filesystem also now has X11 and launches XFCE on boot (if you have a USB OTG cable a mouse/keyboard can be used)
The image should...
08/11/2016
- JK 10:05 AM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board
- Hi Dan,
The network stability problem has disappeared after removing the skews. Thanks for the suggestion!
I'll soon proceed with additional defconfig/dts modifications, starting with the suggestions above.
Thanks,
Jared
08/10/2016
- DV 11:12 AM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board
- Hi Jared,
Looking at the sockit dts(https://github.com/altera-opensource/linux-socfpga/blob/socfpga-4.1.22-ltsi-rt/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts) I see they are setting skews for the data clocks for the RGMII phy. We d... - JK 10:38 AM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board
- Hello Dan,
I've been performing more testing on the Altera 4.1.22 LTSI RT branch.
Physical setup: MitySOM 5CSX H6 HYA dev kit connected to network via Ethernet (J500).
Altera 4.1.22 LTSI RT does indeed get an IP address, but the...
08/09/2016
- DV 10:30 AM FPGA Development: RE: HDMI Output splash screen is intermittently displayed on boot
- Hello Steve,
There was a bit of stability issue with the I2C interface to the HDMI transmitter IC. I thought my newest build of the demo had the stability issue ironed out though, let me take try it here again and I'll post back with ... - Hello,
I'm trying to run the HDMI output image provided on the wiki. I haven't modified anything just written the image to an SD card.
When booting, the splash screen sometimes shows up, but usually doesn't. I'm also intermittent... - DV 10:24 AM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board
- Hi Jared,
Glad to hear that worked for you! If you run into trouble getting your defconfig/dts setup how you want just let me know.
Dan - JK 09:40 AM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board
- Hello Dan,
Thanks for pushing the dizzy (1.7) branch. I've successfully gotten to the same point you did in your first reply via a Yocto build (Altera Linux 4.1.22 LTSI RT is booting and receiving an IP address, but still need to modi...
08/05/2016
- DV 02:05 PM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board
- Hi Jared,
Sorry for the delay.
I just pushed a dizzy(1.7) branch to our git repo: http://support.criticallink.com/gitweb/?p=meta-mitysom-5csx.git;a=shortlog;h=refs/heads/dizzy
This will use gcc 4.9.1 for the toolchain, which shoul...
08/03/2016
- JK 03:27 PM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board
- Hello Dan,
I proceeded to try to use Yocto to build the Altera 4.1.22 LTSI RT kernel based on your suggestions above.
Unfortunately, the compilation of the kernel is erroring out because of an incompatible GCC version. The followin...
08/02/2016
- DV 11:55 AM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board
- Hello Jared,
That sounds like a perfect approach. For building the file system we do use yocto, which as you saw is pointed to use the 3.16 kernel. Now depending on how manual you want to do this I can suggest a few options.
Probab... - JK 10:26 AM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board
- Hello Dan,
I've been going through the instructions on the Wiki to get an SD card image of my creation working. I'm starting with the 3.16 kernel version provided by Critical Link to get a handle on the process of building an SD card ...
07/29/2016
- DV 03:01 PM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board
- Hello Jared,
I did a quick test here and was able to boot altera's 4.1.22 ltsi rt kernel using the MitySOM-5CSX dev kit. I used the socfpga_defconfig and socfpga_cyclone5_sockit.dts. I didn't do an extensive test but was able to boot ...
07/28/2016
- Context: My company recently purchased some MitySOM 5CSX Development Boards and would like to use them on a current project. This project likely has the need for a real-time operating system. I want to start by using Linux with the PREEM...