Search Results for RC

VAR

Designator: Declare a Variable Block. VAR  Size Symbol < [Count ] > < Size Symbol < [Count ] >>… VAR  Size Symbol < [Count ] > < , Symbol < [Count ] >>… Explanation VAR is the Variable Block declaration. The Variable Block is a section of source code that declares global variable symbols. This is…

Blocks

Each Propeller object is a Spin file that has an inherent structure consisting of up to six different special-purpose blocks: CON, VAR, OBJ, PUB, PRI, and DAT. Valid Keywords These blocks are shown below (in the order that they typically appear in objects) along with the…

3D Models for Parallax Products

Introduction Parallax has published 3D models of many of our popular products, especially around the Propeller 2. You can find these models by visiting the product page and then the associated STEP and VRML formats, which are zipped together as…

4-bit SD driver

4-bit SD mode SD card driver plug-in for Eric Smith's FlexProp/Flexspin

DEBUG Plot Layer and Crop

Introduction PNut_v49p1 adds new DEBUG PLOT commands allowing up to 8 bitmap layers that you can selectively copy into the PLOT window. This is useful for doing photo-realistic displays, where pre-drawn images are copied into the plot window to show,…

Floating point

Introduction SPIN2 introduces native 32-bit floating point support for the Propeller 2. The implementation follows IEEE-754 encoding rules, with a bit sequence comprising a sign bit, followed by exponent and then mantissa (significand) bits. An interesting tool to experiment with…

Implementing Abstract Data Structures with Spin Objects

Introduction Implementing user-defined data structures and multi-dimensional arrays in Spin is different than it is in C/C++, Java, Python, PHP and other high-level languages. With a few special considerations, Spin can do this for larger software projects requiring complex data…

Making in USA - The Parallax 8 core microcontroller

Introduction The Parallax Propeller 1 Microcontroller was designed by Chip Gracey, President of Parallax Inc. based in Rocklin, California, USA. Chip spent eight years on the project overall, and was assisted for two years by an in-house layout engineer. An…