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Hello, I am having trouble outputting sound on Linux using SSM2603. The SSM2603 device driver loads normally. It is also registered in ALSA sound card list. However, "input / output error" is raised in "alsactl init". ("amixer" is also the same.) It plays when I play wave file with "aplay" but it does not output to "R/LOUT pin" of SSM2603. Regards, Namio
I am trying to boot Linux with Linaro file system on Zybo Z7-10 without Petalinux. I would like to connect a monitor to HDMI TX output to be able to see Linaro graphical interface but I am getting errors while Linaro Ubuntu is booting, and nothing is being shown on the monitor. I am sure that HDMI output works on my board since I got HDMI demo project to work. I am using Zybo base system design from here, adapted to Zybo Z7 on Vivado 2018.2. I have generated device tree from this design using Xilinx SDK following this tutorial. I am using Digilent's u-boot and Linux kernel and I've downloaded Linaro file system from here (last file). These are the errors that are showing up when Linaro Ubuntu is booting: systemd-bootchart.service failed. [ OK ] Started Remount Root and Kernel File Systems. [ OK ] Started Create Static Device Nodes in /dev. Starting udev Kernel Device Manager... Starting Load/Save Random Seed... [ OK ] Reached target Local File Systems (Pre). [FAILED] Failed to start Load Kernel Modules. See "systemctl status systemd-modules-load.service" for details. systemd-modules-load.service failed. Starting Apply Kernel Variables... [ OK ] Started udev Coldplug all Devices. [ OK ] Started Increase datagram queue length. [FAILED] Failed to mount Temporary Directory. See "systemctl status tmp.mount" for details. [FAILED] Failed to start RealtimeKit Scheduling Policy Service. See "systemctl status rtkit-daemon.service" for details. My goal is to enable HDMI output on Zybo Z7. I suspect that these errors are the cause of the problem, but I am not sure if there is any additional step I need to perform to get HDMI to work, like enabling some drivers in Linux kernel, or configuring the device tree. I have tried using different Linux kernel versions (by checking out different tags from Digilent's repository), using different versions of Linaro file system, using default device tree for Zybo Z7 provided with Linux kernel, but I've had no success since various errors are always showing up. I would appreciate any help or someone pointing me in the right direction, since I am not sure what is the cause of the problem. Thank you!
Hello everyone, I've bought a Zybo Z7 with a XC7Z010. I've downloaded the HDMI demo (link here) and I got it working - I connected my laptop to the RX port and a monitor to the TX port. Now what I'm trying to do is to have the TX connected to a monitor, build an image using Petalinux and once I program the SoC I can see the Linux booting on the monitor. I've built an image using the bit and hdf files provided on the HDMI demo project and on Petalinux kernel config I've enabled the following: Device Drivers -> Graphics support -> Enable HDMI HDCP support in MSM DRM driver -> Xilinx DRM -> Xilinx DRM Display Port Driver -> Xilinx DRM Display Port Subsystem Driver I can program the SoC ok but I get no output on the monitor. Am I missing something? Thanks in advance!
Hi everyone. I am curios if there is a relatively simple modification I can do to increase available FPGA power, especially the 1V into the FPGA, on a Z7-20 board? Background, my problem is simple. I load a design into the Zynq that is expected to drain much more on the 1V supply then what the PMU inside the board can deliver, when loaded the LD13 led goes down almost instantly indicating that the supply rails can't keep up. This is easy to do, just try to use half of the Fabric at a decent frequency (200+MHz) and you will have run out of power. So I assume the PMU was dimensioned for the smaller FPGA on Z7-10 originally. Regards