error: direction 'InOut' on inlined port connection unsupported

[B3rndK]

Hello, sorry for bothering but I just changed over from plain verilog (yosys) to system verilog using the yosys_slang module. After I fixed several warnings thankfully shown by slang, I am now left with 8x the same error which is, as I thing, doing some really easy stuff:

I am instantiating a module from my top-level module. It is using eight inout wires "io_psram_data0"-"io_psram_data7" which I named all the same in the .ccf file, in my instantiation and in the module itself:

[TOPLEVEL]
(...)
  memCtrl U13_U25(
    .i_clkRAM(clkSys), 
    .reset(rst), 
 (...)
    .io_psram_data0(io_psram_data0),
    .io_psram_data1(io_psram_data1),
    .io_psram_data2(io_psram_data2),
    .io_psram_data3(io_psram_data3),
    .io_psram_data4(io_psram_data4),
    .io_psram_data5(io_psram_data5),
    .io_psram_data6(io_psram_data6),
    .io_psram_data7(io_psram_data7),
(...)


[MODULE]
(...)
module memCtrl( input logic i_clkRAM,  // RAM clock (100Mhz)
                input logic reset,
(...)
                inout wire io_psram_data0,
                inout wire io_psram_data1,
                inout wire io_psram_data2,
                inout wire io_psram_data3,
                inout wire io_psram_data4,                
                inout wire io_psram_data5,
                inout wire io_psram_data6,
                inout wire io_psram_data7,            
(...)


OUTPUT:

1. Executing SLANG frontend.
Top level design units:
    gm64

in file included from src/gm64.v:14:
memCtrl/src/memCtrl.v:21:28: error: direction 'InOut' on inlined port connection unsupported
                inout wire io_psram_data0,
                           ^
memCtrl/src/memCtrl.v:22:28: error: direction 'InOut' on inlined port connection unsupported
                inout wire io_psram_data1,
                           ^
memCtrl/src/memCtrl.v:23:28: error: direction 'InOut' on inlined port connection unsupported
                inout wire io_psram_data2,
                           ^
memCtrl/src/memCtrl.v:24:28: error: direction 'InOut' on inlined port connection unsupported
                inout wire io_psram_data3,
                           ^
memCtrl/src/memCtrl.v:25:28: error: direction 'InOut' on inlined port connection unsupported
                inout wire io_psram_data4,                
                           ^
memCtrl/src/memCtrl.v:26:28: error: direction 'InOut' on inlined port connection unsupported
                inout wire io_psram_data5,
                           ^
memCtrl/src/memCtrl.v:27:28: error: direction 'InOut' on inlined port connection unsupported
                inout wire io_psram_data6,
                           ^
memCtrl/src/memCtrl.v:28:28: error: direction 'InOut' on inlined port connection unsupported
                inout wire io_psram_data7,            
                           ^

Build failed: 8 errors, 0 warnings

Sorry for this question, I digged a lot and studied several system verilog articles but I cannot find out why this should not work...??

Any help is greatly appreciated.

Thanks,
Bernd.

[MikePopoloski]

This is not an error issued by slang directly. I assume it's coming from the yosys_slang plugin; I'd raise it over at https://github.com/povik/yosys-slang

Probably they simply haven't gotten around to hooking up support for inout ports.

[B3rndK]

Thank you. At least good to hear that the code should compile ok. ---------------------------------------- 09.02.2025 20:03:24 Michael Popoloski ***@***.***>:

…

This is not an error issued by slang directly. I assume it's coming from the yosys_slang plugin; I'd raise it over at https://github.com/povik/yosys-slang Probably they simply haven't gotten around to hooking up support for inout ports. — Reply to this email directly, view it on GitHub[#1236 (comment)], or unsubscribe[https://github.com/notifications/unsubscribe-auth/ALOAVZG3RNYWTKJ3QRCRCDD2O6Q7TAVCNFSM6AAAAABWZCI7SKVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTEMJRGA2TGNQ]. You are receiving this because you authored the thread. [Verfolgungsbild][https://github.com/notifications/beacon/ALOAVZDAZMHGMSD7JS6JNR32O6Q7TA5CNFSM6AAAAABWZCI7SKWGG33NNVSW45C7OR4XAZNRIRUXGY3VONZWS33OINXW23LFNZ2KUY3PNVWWK3TUL5UWJTQAXDFMQ.gif]