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Altera_Forum
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11 years ago

DE1-SoC No /dev/fpga0 device on LXDE or Ubuntu

I have been using the basic SD card image but now I need to move to using the LXDE or Ubuntu images supplied for use with the DE1-SoC. However both these images do not feature a /dev/fpga0 devi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

OK I managed to fix this.

Take the kernel from the fat partition on the "DE1_SoC_SD" SD card. Filename is zImage. For the zImage kernel to work in the "DE1_SoC_LXDE" SD card it must be converted to uImage format, so in SoC EDS shell type:- 

mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n "Linux-3.12.0-00307-g507abb4-dirt" -d ./zImage ./uImage

Now copy the newly created uImage file to the FAT partition on the LXDE SD card. You should have a working /dev/fpga0 where you can dd the the FPGA configuration bitstream to.