Suppose we want to send data bytes from one microprocessor to another microprocessor. We can achieve sending data in several ways such as serially or in parallel. In this article, we focus sending data serially and specifically, using a simple protocol known as the Serial Peripheral Interface (SPI). We will only discus the master configuration for this article but the slave configuration should be easy enough to implement once you have the concept.

Function callbacks or function pointers in C/C++ were done by specifying the signature and name of the function. This led to ugly syntax. C++ 11 has simplified how function pointers are expressed by wrapping them into objects.

OpenCL is the heterogeneous computing framework that enables execution across different platforms such as CPUs and GPUs. While its design was meant so that you can write your program once and have it execute among different platforms, you may run into problems while implementing your designs in a commercial product. These problems include from lack of OpenCL 1.2 support, driver instability, poor debugging tools, concurrency problems in the API, cumbersome API, and limited SDK examples. Should you choose OpenCL for your commercial product? This article hopes to answer some of those questions.