I am trying to use DesignSpark to draw a schematic using the Atmel ATMega328p-pu chip. I can't seem to get DesignSpark to find this IC in its libraries. As this is the basic chip for the Arduino Uno, surely it must be there somewhere. Can anybody help me to find it?
Depending on which package you want to use just find another Atmel ATmega micro in DSPCB libraries which is using the same package, save it as your ATMega328p-pu and edit schematic symbol to make sure your pin names and funtiosn are correct. The trick is to find the closest match. It is not possible for DSPCB libraries to contain every single microcontroller so you need to rely on your ingenuity. If you have any trouble with editing components in libraries please make suyre you read the library creation tutorial.