An integrated circuit comprising: a programmable logic fabric configured with a calibration configuration that contains a replica path for each of one or more of critical paths in an operating design for the programmable logic fabric , wherein the calibration configuration further contains error checkers that determine whether data injected in the programmable logic fabric is passed through the one or more replica paths properly under the operating condition; and a dynamic parameter scaling controller configured to: maintain, during a calibration mode, a first operating parameter of the programmable logic fabric at a given value while cycling through values of at least one further operating parameter of the programmable logic fabric , thereby determining, using the error checkers, one or more functional values of one or more further operating parameters of the programmable logic fabric at which data injected in the programmable logic fabric is passed through the one or more replica paths function properly; store the one or more functional values for the one or more further operating parameters in a calibration table ; and operate the programmable logic fabric , when operated using the design configuration , using the one or more functional values for the one or more further operating parameters in a calibration table . a programmable logic fabric configured with a calibration configuration that contains a replica path for each of one or more of critical paths in an operating design for the programmable logic fabric , wherein the calibration configuration further contains error checkers that determine whether data injected in the programmable logic fabric is passed through the one or more replica paths properly under the operating condition; and a dynamic parameter scaling controller configured to: maintain, during a calibration mode, a first operating parameter of the programmable logic fabric at a given value while cycling through values of at least one further operating parameter of the programmable logic fabric , thereby determining, using the error checkers, one or more functional values of one or more further operating parameters of the programmable logic fabric at which data injected in the programmable logic fabric is passed through the one or more replica paths function properly; store the one or more functional values for the one or more further operating parameters in a calibration table ; and operate the programmable logic fabric , when operated using the design configuration , using the one or more functional values for the one or more further operating parameters in a calibration table . maintain, during a calibration mode, a first operating parameter of the programmable logic fabric at a given value while cycling through values of at least one further operating parameter of the programmable logic fabric , thereby determining, using the error checkers, one or more functional values of one or more further operating parameters of the programmable logic fabric at which data injected in the programmable logic fabric is passed through the one or more replica paths function properly; store the one or more functional values for the one or more further operating parameters in a calibration table ; and operate the programmable logic fabric , when operated using the design configuration , using the one or more functional values for the one or more further operating parameters in a calibration table . <EOS>