The errors are reported in red in the Timing dialog or in the timing property line in the Component Inspector. The error summary is available in the Error window. Follow the error message text to find the source of the problem. If no error is reported, it means that Processor Expert can achieve the desired timing for all components in the project.
Common problems that make impossible to set a timing value:
This problem is reported in the component or the Timing dialog and the user is informed which value has incorrect value. The reason is usually the hardware structure and limitations of the processor. The Timing dialog shows the list of values (ranges) that are allowed to be set. It might be necessary to increase the allowed error (using the 'Error' field in the Timing dialog) that specifies the allowed difference between the required value and possible value that can be produced by the hardware.
In this case, the problem is reported by all components that share some timing hardware. Due to dependencies between used parts of the timer, it is necessary to adjust the values of the shared elements (such as prescalers) to the same value.
For example, if two TimerInt components are using two channels of one timer and all timer channels are connected to one common prescaler, it is not possible to set the values that would require a different prescaler values. In this case, it is useful to manually adjust the prescaler values of all components to the same value (switch to Expert view mode and adjust the property in the Component Inspector view).
The required run-time settings are outside the range of one prescaler.This is a limitation of this mode of runtime setting.