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#1833 breaks Tang nano 9k, as it generates illegal code #1837

Open andelf opened 11 months ago

andelf commented 11 months ago 
          @trabucayre @enjoy-digital  This breaks Tang nano 9k, as it generates illegal code:
ERROR (EX3637) : Range is not allowed in a prefix("/data/LiteX/litex-boards/litex_boards/targets/build/sipeed_tang_nano_9k/gateware/sipeed_tang_nano_9k.v":2633)
ERROR (EX3878) : 'IO_psram_dq' is not a memory("/data/LiteX/litex-boards/litex_boards/targets/build/sipeed_tang_nano_9k/gateware/sipeed_tang_nano_9k.v":2633
IOBUF IOBUF(
    // Inputs.
    .I   (main_hyperram_tstriple0_o[0]),
    .OEN ((~main_hyperram_tstriple0_oe)),

    // Outputs.
    .O   (main_hyperram_tstriple0_i[0]),

    // InOuts.
    .IO  (IO_psram_dq[7:0][0])
);

Originally posted by @andelf in https://github.com/enjoy-digital/litex/issues/1833#issuecomment-1807146160

trabucayre commented 11 months ago

Indeed. I have disabled Tristate support (after check with tangMega) and I have to find a valid fix. thanks!