FIGURE 9–1 Common symbols for flowcharting

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–1 Common symbols for flowcharting

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–2 Flowchart for the WHILE/DO structure

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–3 Flowchart for Example 9.1

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–4 Flowchart for Example 9.2

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–5 Flowchart for Example 9.3

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–6 Flowchart for the REPEAT/UNTIL structure

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–7 Flowchart for Example 9.4

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–8 Flowchart for the IF/THEN/ELSE structure

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–9 Flowchart for Example 9.5

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–10 Flowchart for CASE structure

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–11 Flowchart for Example 9.6

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–12 Flowchart for OUTCHR subroutine

The 8051 Microcontroller, 4e

By I. Scott MacKenzie and Raphael C.-W. Phan

© 2007 Pearson Education, Inc.

Pearson Prentice Hall

Upper Saddle River, NJ 07458

FIGURE 9–13 Flowchart for OUTSTR subroutine