Click the Sheet Symbol button ( ) in the graphic objects drop-down on the Active Bar located at the top of the workspace.Choose Place » Sheet Symbol from the main menus.Use one of the following methods to access the placement command: Sheet symbols are available for placement in the Schematic Editor only. Sheet symbols include sheet entry symbols, which provide a connection point for signals between the parent and child sheets in a hierarchical design, similar to the way that Ports provide connections between sheets in a flat-sheet design. It is used to represent a sub-sheet in a multi-sheet hierarchical design. I don't know.A sheet symbol is an electrical design primitive. This could also be a limitation of the software. However, I still would like to know, and it might be a good question for this community. I say "the problem I was having", is because I ended up changing my design that I no longer needed to cascade them together and so didn't need to worry about how the connections were. The problem I was having, was setting up the connections (wires, busses, net names) so that I can get the connection I wanted so that I can cascade the shift registers together. But the Q7S from sheet RELAY_1, becomes the serial input for sheet RELAY_2, and so. So this shift register can be cascaded to form a long chain.īut there is more stuff happening on this schematic that is not shown, and so this entire schematic has been been made into a sheet symbol because everything that happens here, gets repeated a bunch of time.įor the very first shift register, I feed it data that comes from my microcontroller (DATA_IN_1). This is a shift register, where Q7S is the serial output. I had 30 sheets before, but when I had to make a change in the wiring, I had to make 30 changes overall and I don't want to do that again, which is why I'm trying to do it this way. I'm having a bit of difficulty arranging my sheets so that its easy to wire, and easy to see what exactly is happening.Īny thoughts of how I can pipe the output of one sheet into the input of the same sheet (repeated) ? However, one of the components in the sheet is a shift register that has a serial in and a serial out (for chaining multiple devices together).Ī single serial signal comes from the top level, and goes into the sheet to the serial in of the first sheet and the serial out is to go to the serial in of the next sheet etc. I have a sheet that needs to be repeated 30 times.
0 kommentar(er)
