Sodele, in der Sache mit den ModelSIM Warnings bin ich nun ein paar
Schritte weiter gekommen. Bis auf ein Modul habe ich alle Warnings
wegbekommen. Das "böse" Modul hat folgende Schnittstelle:
1 | entity CAPTURELogic is
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2 | port (
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3 | -- System
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4 | INT_CLK : in STD_LOGIC;
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5 | INT_RESET : in STD_LOGIC;
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6 | -- CAPTURE Enable
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7 | CAPTURE_ENABLE : in STD_LOGIC;
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8 | -- CAPTURE Window Enable
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9 | CAPTURE_WIN_ENABLE : in STD_LOGIC;
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10 | -- CAPTURE Window
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11 | CAPTURE_WINDOW_START : in STD_LOGIC_VECTOR(31 downto 0);
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12 | CAPTURE_WINDOW_END : in STD_LOGIC_VECTOR(31 downto 0);
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13 | -- CAPTURE Input
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14 | CAPTURE_INPUT_impuls : in STD_LOGIC;
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15 | -- Counter Input
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16 | STEP_COUNT : in STD_LOGIC_VECTOR(31 downto 0);
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17 | -- CAPTURE Request
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18 | CAPTURE_REQUEST : out STD_LOGIC;
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19 | CAPTURE_REQUEST_reset : in STD_LOGIC;
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20 | -- CAPTURE Wert
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21 | CAPTURE_VALUE : out STD_LOGIC_VECTOR(31 downto 0);
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22 | -- CAPTURE Count
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23 | CAPTURE_COUNT : out STD_LOGIC_VECTOR(7 downto 0);
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24 | CAPTURE_COUNT_reset : in STD_LOGIC
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25 | );
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26 | end CAPTURELogic;
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Innerhalb des Moduls werden diese Signale definiert:
1 | -- signals
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2 | signal CAPTURE_impuls : STD_LOGIC;
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3 | signal CAPTURE_REQUEST_save : STD_LOGIC;
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4 | signal WINDOW_INVERS_sig : STD_LOGIC;
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5 | signal IN_WINDOW_NONINV_sig : STD_LOGIC;
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6 | signal IN_WINDOW_INV_sig : STD_LOGIC;
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7 | signal IN_WINDOW_sig : STD_LOGIC;
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8 | signal CAPTURE_OVERALL_ENABLE_sig : STD_LOGIC;
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9 | signal CAPTURE_ALLOW_WINDOW_sig : STD_LOGIC;
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10 | signal CAPTURE_ENABLE_sig : STD_LOGIC;
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11 | -- step counter
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12 | signal CAPTURE_COUNT_uv : unsigned(7 downto 0);
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13 | -- Capture Wert
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14 | signal CAPTURE_VALUE_sig : STD_LOGIC_VECTOR(31 downto 0);
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Gemäss dem Waveform Screenshot im Anhang sind alle Signale sauber
definiert, schon ganz vom Anfang an. ModelSim gibt aber trotzdem einige
solche Warnungen aus:
1 | # Time: 0 ps Iteration: 0 Instance: /kusb_io_flex_testbench_readertest_r1a_mode0/mykusb_io_flex/mycapture/mycapturelogicfall
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2 | # ** Warning: There is an 'U'|'X'|'W'|'Z'|'-' in an arithmetic operand, the result will be 'X'(es).
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3 | # Time: 0 ps Iteration: 0 Instance: /kusb_io_flex_testbench_readertest_r1a_mode0/mykusb_io_flex/mycapture/mycapturelogicrise
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4 | # ** Warning: There is an 'U'|'X'|'W'|'Z'|'-' in an arithmetic operand, the result will be 'X'(es).
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Woher könnten diese Warnungen jetzt noch stammen?
Die einzige
modelsim.png
(23 KB)
