Re: [myhdl-list] pullups for inputs on CAT-Board require 2 signals per input with pullup?

[Edward V. <dev...@sb...>]

Hi All,I failed to reference the exchange between Dave & Clifford Wolf at 

https://hackaday.io/project/7982-cat-board

The following is what appears in iceriver/catboard.v
SB_IO #(
  .PIN_TYPE(6'b000001),
  .PULLUP(1'b1)
) input_pin_1  (
  .PACKAGE_PIN(reset_i),
  .D_IN_0(reset)
); Thanks,
Edward Vidal Jr. e-mail dev...@sb... 915-595-1613 

    On Tuesday, January 19, 2016 6:10 PM, Edward Vidal <dev...@sb...> wrote:
 

 Hi Chris,
As you recall I asked you, if the file ice40_primitives.py from Dave's CAT-Board/tests

https://github.com/xesscorp/CAT-Board.git 

needed to added to the rhea package.

I am doing some testing and created a file

jpeg-2000-test/pc_fast_blinker_jpeg/test_top_cat.py which 

https://github.com/develone/jpeg-2000-test.git

is imported by ex_catboard_jpeg.py with the chgs below.
 
diff ex_catboard_jpeg.py pc_fast_blinker_jpeg/ex_catboard_jpeg.py
26c26
< from test_top_cat import dwt_top
---
> from test_top import dwt_top
48c48
<     brd.add_port('reset_i', 'T2')
---
>     brd.add_port('reset', 'T2')

Running the test_top_cat.py --test and looking at the reset & reset_i signals.
The signal reset is always hi.
The signal reset_i goes lo when driven by the simulation.
 
For XulA2-LX9 I used the pullup=True see the file 
jpeg-2000-test/pc_fast_blinker_jpeg/ex_jpeg_xula2.py from the repository

https://github.com/develone/jpeg-2000-test.git/
This creates the xula2.ucf
#
NET "reset" LOC = "J14"  | pullup ;
NET "si2" LOC = "M15"  | pullup ;
NET "si1" LOC = "F16"  | pullup ;
NET "si0" LOC = "E2"  | pullup ;
NET "fB3" LOC = "J16"  | pullup ;
NET "clock" LOC = "A9" ;
NET "fB1" LOC = "C16"  | pullup ;
NET "ss0" LOC = "H1"  | pullup ;
NET "fB0" LOC = "R7"  | pullup ;
NET "si3" LOC = "K16"  | pullup ;
NET "ld" LOC = "B1" ;
NET "pp0" LOC = "K15" ;
NET "fB2" LOC = "M16"  | pullup ;
#
NET "clock" TNM_NET = "clock"; 
TIMESPEC "TS_clock" = PERIOD "clock" 83.3333333 ns HIGH 50%;
# Thanks,

Edward Vidal Jr. e-mail dev...@sb... 915-595-1613
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