Using 'volatile' with ISR Part-1   Use volatile when your code is dealing with below scenarios Memory-mapped peripheral registers of the microcontrollers Multiple tasks accessing global variables(read/write) in an…

    Using volatile to fix issues with the pin-read exercise Now let's try to use volatile keyword to fix the issue with our code.   Figure 1 shows our…

  When to use volatile qualifier? A variable must be declared using a volatile qualifier when there is a possibility of unexpected changes in the variable value.  The unexpected changes…

  volatile and effect of optimization   Type Qualifiers in C In C programming, type qualifiers are used to specify the type and memory location of a variable. The following…

  Analyzing pin read exercise disassembly with O0 and O2   In the previous article, when we activated the O2 optimization on our code, our code stopped working. We have…

  Different compiler optimization levels   In this article, let's experiment on different compiler optimization levels.  We have the pin read application(Figure 1). Let's use different optimization levels on this…