Costum FPGA in E310

Hi all,

I am actually working on a project needs migrate an old FPGA program to
E310. First, I want to custom the official FPGA program of E310. But I
found some configurations of PS are not the same on the schematics
diagram. And I tried to export to SDK, but even the simple hello world
program didn’t work.

I listed what I have done as follow:

  1. first, I downloaded the FPGA source code from this address:
    https://github.com/EttusResearch/fpga/tree/master

  2. I taped these commands to build the project:
    $source /opt/Xilinx/14.7/ISE_DS/setting64.sh
    $export PATH=$PATH: /opt/Xilinx/14.7/ISE_DS/ISE/bin/bin/lin64/xtclsh
    $cd fpga-master/usrp3/top/e300
    $make E310

  3. This step took about 1 hour. And then, I open the XPS project.
    $cd build-E310/zynq-ps
    $xps e300_ps.xmp

  4. The XPS was just opened. But from here I found some settings I dont
    understand. In the ZYNQ PS CONFIGURATION, the UART1 was selected using
    MIO 48 49, but in the schematic diagram of USRP E300 series
    Motherboard, the UART was using UART0. And UART0 used MIO 14 and MIO 15.

  5. If I tried to generate the bitstream from this XPS project, it will
    give me a lot of errors like:
    ERROR:MapLib:979 - LUT6 symbol

“axi_interconnect_1/axi_interconnect_1/mi_protocol_conv_bank/gen_protocol_slot[0].gen_prot_conv.conv_inst/gen_axi3.axi3_conv_inst/USE_READ.USE_SPLIT.read_addr_inst/Madd_M_AXI_AADDR_I[31]_GND_19_o_add_51_OUT_lut<10>”
(output
signal=axi_interconnect_1/axi_interconnect_1/mi_protocol_conv_bank/gen_protocol_slot[0].gen_prot_conv.conv_inst/gen_axi3.axi3_conv_inst/USE_READ.USE_SPLIT.read_addr_inst/Madd_M_AXI_AADDR_I[31]_GND_19_o_add_51_OUT_lut<10>)
has input signal
“axi_interconnect_1/axi_interconnect_1/mi_protocol_conv_bank/gen_protocol_slot[0].gen_prot_conv.conv_inst/gen_axi3.axi3_conv_inst/USE_READ.USE_SPLIT.read_addr_inst/S_AXI_AADDR_Q<10>”
which will be trimmed. See Section 5 of the Map Report File for details
about why the input signal will become undriven.

  1. Finally, I exported design to SDK with no bitstream, but even the
    simple Hello world print program didn’t work. There was nothing output
    from the UART port.

I want know if there is someone have done a similar work who can tell me
where am I doing wrong?

Thanks,

Weidong Wang

Hi Weidong,

the XPS project that’s made during the current E310 build is not meant
to be used to implement custom designs.
We usually just add stuff to the Makefiles (custom RTL, coregen files,
etc). If you can give us some more info on what you’re trying to do,
we’ll be able to help you out better.

Cheers,

Moritz

On Sat, Apr 11, 2015 at 10:41 AM, linux


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