Microcontroller Propeller 2

Sharing variables between SPIN2 and PASM2

Introduction Code for the Propeller 2 (whether written in the native SPIN2, C or other high level language), can usually benefit from a bit of PASM2 (assembly code) to help create super-fast drivers for real world interfacing! That PASM2 code…

Keep any value in range

Introduction The Propeller native SPIN and SPIN2 languages include many efficient instructions to solve common programming tasks. For example, how to keep a value between a certain range of allowed values? Here’s an example using just one line of code!…

Determine pin state - High, Low or Floating?

Introduction A common requirement for programmers is to determine the external state of an IO pin. The Propeller 2 smart IO pins make this simple without needing any external components, and allow the programmer to determine if the pin is…