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Running petalinux on MicroBlaze

Former Member

Hello.
Has anyone been able to configure the zedboard system (using Vivado) to run petalinux on MicroBlaze? I am having problems with Vivado to properly configure the system. Can anyone share the vivado design for microblze+petalinux? Thank you.

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    Running a MicroBlaze processor system in the Zynq PL on a ZedBoard is certainly possible and would work fine for a MicroBlaze system with small code size requirements (i.e. the MicroBlaze software will run from Block RAM), but is probably not recommended for running PetaLinux on the MicroBlaze.  That is because PL access to the Zynq system memory (the DDR3 connected to the Zynq PS on the ZedBoard) maybe too slow to be effectively used to run an OS.  If you want to run PetaLinux on MicroBlaze in the Zynq PL your best bet would be to use the Avnet Zynq Mini-ITX board (http://zedboard.org/product/mini-itx) with either the Zynq Z7045 or Z7100 device.  This board has 1GB of DDR3 memory connected directly to the Zynq PL. This will allow a MicroBlaze system in the Zynq PL to use this as system memory, and thus capable of running PetaLinux.  There is an example PetaLinux design for MicroBlaze posted to the Avnet DRC for the Kintex-7 Mini Module Plus board (https://www.em.avnet.com/en-us/design/drc/pages/supportanddownloads.aspx?RelatedId=605).  You will need to register or provide your credentials to download this design.  Though the design is targeted to a Kintex device, the MicroBlaze system architecture required to run PetaLinux will be very similar to what is required in the Zynq PL, and the process to configure and build PetaLinux would be the same.  I hope this helps answer your question.

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    Running a MicroBlaze processor system in the Zynq PL on a ZedBoard is certainly possible and would work fine for a MicroBlaze system with small code size requirements (i.e. the MicroBlaze software will run from Block RAM), but is probably not recommended for running PetaLinux on the MicroBlaze.  That is because PL access to the Zynq system memory (the DDR3 connected to the Zynq PS on the ZedBoard) maybe too slow to be effectively used to run an OS.  If you want to run PetaLinux on MicroBlaze in the Zynq PL your best bet would be to use the Avnet Zynq Mini-ITX board (http://zedboard.org/product/mini-itx) with either the Zynq Z7045 or Z7100 device.  This board has 1GB of DDR3 memory connected directly to the Zynq PL. This will allow a MicroBlaze system in the Zynq PL to use this as system memory, and thus capable of running PetaLinux.  There is an example PetaLinux design for MicroBlaze posted to the Avnet DRC for the Kintex-7 Mini Module Plus board (https://www.em.avnet.com/en-us/design/drc/pages/supportanddownloads.aspx?RelatedId=605).  You will need to register or provide your credentials to download this design.  Though the design is targeted to a Kintex device, the MicroBlaze system architecture required to run PetaLinux will be very similar to what is required in the Zynq PL, and the process to configure and build PetaLinux would be the same.  I hope this helps answer your question.

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