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MachXO2 pin mismatch error

Started by Piotr Wyderski March 11, 2021
Hi,

I am trying to use a PMI ROM memory block in Lattice Diamond/VHDL:

	decoder_rom0 : pmi_rom generic map (
	
	   pmi_addr_width => 3,
	   pmi_data_width => decoder_rom_data'length,
	   pmi_regmode => "noreg",
	   pmi_gsr => "disable",
	   pmi_resetmode => "sync",
	   pmi_optimization => "area",
	   pmi_init_file => "i2c_decoder_rom.mem",
	   pmi_init_file_format => "binary"

	) port map (
	
		Address => std_logic_vector(decoder_rom_address),
		OutClock => clk,
		OutClockEn => trigger,
		Reset => reset,
		Q => decoder_rom_data
	);		

At a later stage the compiler fails with:

Loading NGO design 'lngotmp/pmi_romebi2c_decoder_romasdn43512db0f16b.ngo'...
ERROR - Pin mismatch between block 
'i2c0/pmi_romECbinaryi2c_decoder_rom.memareasyncdisablenoreg43512', 
TYPE='pmi_romEbi2c_decoder_romasdn43512db0f16b', and file 
'lngotmp/pmi_romebi2c_decoder_romasdn43512db0f16b.ngo' at pin 
'Address[2:0](2)'.
Done: error code 2

Synplify synthesizes the bitstream without a warning, so the issue must 
be related to the LSE. What can I do with it?

	Best regards, Piotr
On 11/03/2021 13:33, Piotr Wyderski wrote:
> Hi, > > I am trying to use a PMI ROM memory block in Lattice Diamond/VHDL: > >     decoder_rom0 : pmi_rom generic map ( > >        pmi_addr_width => 3, >        pmi_data_width => decoder_rom_data'length, >        pmi_regmode => "noreg", >        pmi_gsr => "disable", >        pmi_resetmode => "sync", >        pmi_optimization => "area", >        pmi_init_file => "i2c_decoder_rom.mem", >        pmi_init_file_format => "binary" > >     ) port map ( > >         Address => std_logic_vector(decoder_rom_address), >         OutClock => clk, >         OutClockEn => trigger, >         Reset => reset, >         Q => decoder_rom_data >     ); > > At a later stage the compiler fails with: > > Loading NGO design > 'lngotmp/pmi_romebi2c_decoder_romasdn43512db0f16b.ngo'... > ERROR - Pin mismatch between block > 'i2c0/pmi_romECbinaryi2c_decoder_rom.memareasyncdisablenoreg43512', > TYPE='pmi_romEbi2c_decoder_romasdn43512db0f16b', and file > 'lngotmp/pmi_romebi2c_decoder_romasdn43512db0f16b.ngo' at pin > 'Address[2:0](2)'. > Done: error code 2 > > Synplify synthesizes the bitstream without a warning, so the issue must > be related to the LSE. What can I do with it? > >     Best regards, Piotr
I assume you are running the latest version of Diamond and have checked the port mapping. The first thing I would do is to log an issue with Lattice. Next start modifying the code to see if you can make it work, I would start by changing the 'length attribute on your generic. Good luck, Hans. www.ht-lab.com