quartus常见错误分析[eda]（Quartus common error analysis [eda]）.docVIP

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quartus常见错误分析[eda]（Quartus common error analysis [eda]）.doc

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quartus常见错误分析[eda]（Quartus common error analysis [eda]）

quartus常见错误分析[eda]（Quartus common error analysis [eda]） Quartus common error analysis [EDA] 1, Warning:, VHDL, Process, Statement, warning, at, random.vhd (18): signal, reset, is, in, statement, but, is, not, list, in, sensitivity,... - - didnt put singal in process () The Warning: Found pins ing as undefined clocks and/or memory enables Info:, Assuming, node, CLK, is, an, undefined, clock -=----- may be generated in the design of trigger not enable end Error: VHDL, Interface, Declaration, error, in, clk_gen.vhd (29): interface, object, clk_scan, of, mode, out, cannot, be, read., Change, object,, mode, to,, buffer, or, inout.. The signal type is set incorrectly, and out is defined as buffer 4, Error:, Node, instance, clk_gen1, instantiates, undefined, entity, clk_gen -- the referenced instantiation element does not define the entity -- entity, clk_gen , Warning:, Found, s, node, in, clock, paths, which, may, acting, as, ripple, and/or, gated, clocks - node (s), analyzed, as, buffer (s), resulting,, in, clock, skew, be Info:, Detected, ripple, clock, clk_gen:clk_gen1/clk_incr, as, buffer Info:, Detected, ripple, clock, clk_gen:clk_gen1/clk_scan, as, buffer 6 Warning: VHDL Process Statement warning at ledmux.vhd (15): signal or variable may dataout not be assigned a new in every possible path through the Process Statement. Signal or variable dataout holds its previous in every path with no new assignment, which may create a combinational loop in the current design. Warning: VHDL, Process, Statement, warning, at, divider_10.vhd (17): signal, CNT, read, inside, the, Process, Statement, but,, isnt, in, is, the, Process, list, Statements, sensivitity, - lack of sensitive signals 8, Warning:, No, clock, transition, on, counter_bcd7:counter_counter_clk/q_sig[3], register Warning:, Reduced, register, counter_bcd7:counter_counter_clk/q_sig[3], with, stuck, clock, port, to,, stuck, GND Warning:, Circuit, may, not, operate., Detected, 1, non-operational, path (s), clocked, by,