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Software Application Development Problem with App Note 1078
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Problem with App Note 1078

Former Member
Former Member over 11 years ago

RE: Xilinx App Note 1078 "Simple AMP Running Linux and Bare-Metal System on Both Zynq SoC Processors"
http://www.xilinx.com/support/documentation/application_notes/xapp1078-amp-linux-bare-metal.pdf
http://www.wiki.xilinx.com/XAPP1078+Latest+Information


Hi,

I've been trying to work through Xilinx App Note 1078, without any success.

I'm using the files from here:
http://zedboard.org/design/1521/11
specifically:
http://zedboard.org/sites/default/files/design/xapp1078_zedboard.zip

I'm trying to run the pre-prepared binary files in the zip file:
xapp1078_zedboarddesignwork_zedboard_14_3zedboard_osl_3_8_kernel_SDcard

The kernel boots OK, but when I run the apps there is no sign of life from CPU1:

rcS Complete
zynq> /mnt/softUart.elf &
zynq> /mnt/rwmem.elf 0xfffffff0 0x18000000
zynq>
zynq>
zynq> /mnt/rwmem.elf 0xffff8000
0x00000000ffff8000 = 0x00000000
zynq> /mnt/rwmem.elf 0xffff8000
0x00000000ffff8000 = 0x00000000
zynq> /mnt/rwmem.elf 0xffff8000
0x00000000ffff8000 = 0x00000000
zynq> /mnt/rwmem.elf 0xffff8000
0x00000000ffff8000 = 0x00000000
zynq>
zynq> /mnt/rwmem.elf 0x78600000 1
zynq>
zynq>
zynq>
zynq> /mnt/rwmem.elf 0xffff8000
0x00000000ffff8000 = 0x00000000
zynq>

I've got two zedboards, neither work.

I also tried the binaries prepared by vcesson (see link), but they fail in the same way.
http://www.zedboard.org/content/amp-running-linux-and-bare-metal-system-both-zynq-soc-processors

I guess there are two possible causes of my problem (i) something in my u-boot environment is wrong, or (ii) I have a newer (different) version of zedboard or zynq hardware?

Any ideas?

The output from my kernel booting, and a copy of my u-boot environment is here:
http://pastebin.com/raw.php?i=nXA5vtmU


Many thanks, Sam.

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  • Former Member
    0 Former Member over 9 years ago

    You seem to be mixing files for a Xillinux demo with the XAP1078 reference design.

     

    If you want to implement the XAP1078 I would suggest using the current Vivado based version:

     

    http://www.wiki.xilinx.com/XAPP1078+Latest+Information

     

    -Gary

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  • Former Member
    0 Former Member over 9 years ago

    You seem to be mixing files for a Xillinux demo with the XAP1078 reference design.

     

    If you want to implement the XAP1078 I would suggest using the current Vivado based version:

     

    http://www.wiki.xilinx.com/XAPP1078+Latest+Information

     

    -Gary

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