Part Check - CD4049 Hex Converter

[vanepp]

FritzingCheckPart.py only reports two important errors:

Error 69: File
‘svg.breadboard.CD4049_a495a3d98e7f2416a9c70870671e762d_3_breadboard.svg.bak’
At line 8

Found a drawing element before a layerId (or no layerId)

Error 69: File
‘svg.schematic.CD4049_a495a3d98e7f2416a9c70870671e762d_3_schematic.svg.bak’
At line 23

Found a drawing element before a layerId (or no layerId)

to fix this you need to group the svg and assign it a layerId (without the layerId the part will not export as an image!)

Here (in Inkscape) I did an Edit–>select all then Object->group and named the resulting group breadboard to set the layerId. Schematic needs the same with the layerId set to schematic. That said it would be more useful (if a lot more complex!) to start from the 74x125 part which is a variable subpart part which has the logic broken out like this

Here each element can be moved independently of all the others.

You would need to add two elements, move the inverter circles to the output and remove the enable pins. Instructions on making such a part are available here which uses the 74x125 as the example part with the part available to download!

Part-creation-howto-part9-schematic-subparts

this is a continuation of Here we are going to look at creating parts with schematic subparts. The purpose of schematic subparts are to allow elements of a multi element part (such as a dual op amp or a hex inverter) to move around schematic independently. I will use the 74x125 quad tristate buffer as an example of this. We will look only at the schematic svg and the fzp file as they are the only two files that are affected by this. Note that schematic subparts block the use of buses in the s…

Peter