Propeller Programming


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Propeller Programming

Assembler, Spin, and Test Driven Development

About the Book

The Propeller microcontroller is a powerful multi-processor chip that can be programmed in either a high-level language (C or Spin) or a much faster Assembly language (PASM).  The prop is used in many educational projects and in hobby/maker applications as well is in a number of commercial products.  

In this book, I use a data compression/decompression application to introduce PASM to the reader.  First I go through the full algorithm is Spin and in C and then translate it to PASM.  That way, if you know a high-level language, you can map the PASM steps to something familiar.  

Integrating C and PASM code has particular challenges that I go through in detail.

I use Test Driven Development throughout, which is a powerful technique for validating your code.

I include a chapter on hardware interactions (setting and reading pins).

About the Author

Sridhar Anandakrishnan
Sridhar Anandakrishnan

I am a Professor of Glaciology and Geophysics at Pennsylvania State University.  My colleagues and I study the flow of glaciers in Antarctica and Greenland.

I use the Propeller chip in a seismic data acquisition device that we use "On The Ice" as we say!

Table of Contents

  1. Introduction                   1
  2. Steim Compression             9
  3. Introduction to Spin           13
  4. Test Driven Development (TDD) 25
  5. Compression in Spin           29
  6. Propeller Assembler: PASM     41
  7. Compression in PASM with TDD. 61
  8. Decompression in PASM 79
  9. Debugging PASM code           91
  10. Interacting with the world   99
  11. C Programming for the Propeller  127
  12. Programming in Cog C Mode  143
  13. Programming with C and PASM   149
  14. Hardware I/O with C   153
  15. Using Inline Assembly Instructions in C code 163
  16. Concluding thoughts  167

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