Upon recompiling, the hierarchy will be resolved and the error will disappear from the Messages panel. If the sheet symbol exists, check the symbol's Filename field and ensure that it references the sub-sheet.If a sheet symbol does not exist, create it either by manual placement or by right-clicking on the sub-sheet then using the Sheet Actions » Create Sheet Symbol From Sheet command.Sheet Symbols are available for placement in the Schematic Editor only. Check to see if a sheet symbol has been placed for the intended sub-sheet on the top-level schematic: It is used to represent a sub-sheet in a multi-sheet hierarchical design. To resolve this issue, first determine which schematic sheet is the intended sub-sheet. This issue typically arises due to the sheet symbol on the true top sheet not targeting the intended sub-sheet correctly. SheetNameis the name of the schematic document currently being used as the top-level sheet.

Multiple top level documents: has been used, A notification is also displayed in the Messages panel in the following format: If compiler errors and warnings are enabled for display on the schematic (enabled on the Schematic - Compiler page of the Preferences dialog), an offending object will display a colored squiggle beneath it. This violation occurs in hierarchical designs where two or more schematic sheets are at the top-level of the structure. But I wasn't able to find any info how to implement this.Īctually I'd like to have only several sheets with no top level.Parent category: Violations Associated with Documents In a tutorial video was mentioned that there is a 'flat design' way. It can be very useful for a big projects but for now (remember, I could put all schematic on the single A4 schematic sheet in KiCAD?) I'd prefer something easier. However as I tried to transfer components and the netlist into PCB and I saw the window telling me that only one schematic sheet will be updated (while I have 4):Īs I know I should make a top-level schematic sheet with a blocks representing the low-level schematic sheets (hierarchical schematic). Connections between sheets should be done via ports ( Place -> Port). To create the top sheet, add a new schematic document to the Temperature Sensor project, set the template to A4 and save it as Program FilesAltium Designer. So what I intend is to have one PCB and several schematic sheets. However this can be useful as I can put functional blocks into different sheets making the schematic more readable. For some reasons the schematic I was able to put on the single sheet in KiCAD spreaded into 4-5 sheets in Altium.

Altium multiple schematic sheets