Interfacing PIC Microcontrollers

The program outline uses high level key words such as IF and DO…WHILE to

control the sequence. It is not an ideal method for a very simple program like this,

but is useful for more complex programs. In particular, it translates directly into

‘C’, if the high-level language is preferred. Note that in this case, the program out-

line does not make any assumptions about the hardware implementation.

Structure Charts

Structure charts are also more suited to more complex programs, but the con-

cept can be illustrated as in Figure 2.4.

Each program component is included under standard headings: inputs,

processes and outputs, and can be broken down further in ...