2. Special programming features

2.1 Working in "real time

Executing programs in "real time" simply means that the microprocessor must process the information at at least the same rate as that at which it varies in the real world, or at least the rate at which it needs to be digitized to enable correct perception of the quantity being measured. On the other hand, delayed-time processing concerns data that have already been stored, and which therefore have nothing to do with the current state of the measured quantities.

At our relatively low level of algorithmic complexity, the main problem will be to ensure that a measurement sample is read before it disappears. This implies organizing the program in such a way that a given task, although initiated by an external event, cannot prevent the execution...