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Parallella Community • View topic - CLUSTER: HDMI BITSTREAM
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CLUSTER: HDMI BITSTREAM

PostPosted: Wed Sep 12, 2018 3:02 pm
by claudio4parallella

Re: CLUSTER: HDMI BITSTREAM

PostPosted: Sun Oct 21, 2018 9:26 pm
by zmc
The bitstream is what programs the FPGA on boot. The HDMI/FB driver uses the device tree to talk to the virtual HDMI graphics card implemented in the FPGA, You would need a bitstream that has the FPGA support. I have been able to generate my own from the sources posted using Xilinx's Vivado software, but you might be better off just getting a premade one unless you have specific requirements.

Are you running a custom Linux kernel?

The things you need to get FB output are: A HDMI bitstream to program the FPGA, the devicetree files to tell the kernel about the hardware, and a Linux kernel driver for the hardware.