با سلام خدمت همه دوستان
راستش به یک مشکلی خوردم که باید زود حلش کنم
توی طراحی بعد از اینکه سنتز انجام شد و در مرحله Implement، پین مربوط به ریست به عنوان کلاک شناخته شده و این خطا رو میده
A clock IOB / BUFGMUX clock component pair have be
البته با اضافه کردن یک constraint در فایل ucf میشه این خطا رو به هشدار تبدیل کرد و کار را ادامه داد ولی این کار اصولی نیست.
لطفا راهنمایی کنید.... :cry: :cry: :cry: :cry: :cry:
راستش به یک مشکلی خوردم که باید زود حلش کنم
توی طراحی بعد از اینکه سنتز انجام شد و در مرحله Implement، پین مربوط به ریست به عنوان کلاک شناخته شده و این خطا رو میده
A clock IOB / BUFGMUX clock component pair have be
en found
that are not placed at an optimal clock IOB / BUFGMUX site pair. The clock
IOB component <rst_n> is placed at site <P74>. The corresponding BUFG
component <rst_n_IBUF_BUFG> is placed at site <BUFGMUX_X3Y8>. There is only a
select set of IOBs that can use the fast path to the Clocker buffer, and they
are not being used. You may want to analyze why this problem exists and
correct it. If this sub optimal condition is acceptable for this design, you
may use the CLOCK_DEDICATED_ROUTE constraint in the .ucf file to demote this
message to a WARNING and allow your design to continue. However, the use of
this override is highly discouraged as it may lead to very poor timing
results. It is recommended that this error condition be corrected in the
design. A list of all the COMP.PINs used in this clock placement rule is
listed below. These examples can be used directly in the .ucf file to
override this clock rule.
that are not placed at an optimal clock IOB / BUFGMUX site pair. The clock
IOB component <rst_n> is placed at site <P74>. The corresponding BUFG
component <rst_n_IBUF_BUFG> is placed at site <BUFGMUX_X3Y8>. There is only a
select set of IOBs that can use the fast path to the Clocker buffer, and they
are not being used. You may want to analyze why this problem exists and
correct it. If this sub optimal condition is acceptable for this design, you
may use the CLOCK_DEDICATED_ROUTE constraint in the .ucf file to demote this
message to a WARNING and allow your design to continue. However, the use of
this override is highly discouraged as it may lead to very poor timing
results. It is recommended that this error condition be corrected in the
design. A list of all the COMP.PINs used in this clock placement rule is
listed below. These examples can be used directly in the .ucf file to
override this clock rule.
البته با اضافه کردن یک constraint در فایل ucf میشه این خطا رو به هشدار تبدیل کرد و کار را ادامه داد ولی این کار اصولی نیست.
لطفا راهنمایی کنید.... :cry: :cry: :cry: :cry: :cry:
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