Top critical review
One person found this helpful
Writing style is often confusing
on January 12, 2004
I have a general background in computer science and am trying to learn about embedded systems from this book. My main objection is that the writing needs to be edited to improve clarity. For example on page 61, the author states "Generally, the first message inserted in the queue is the first message extracted from the queue (FIFO). In addition, to extract messages in a FIFO fashion, uC/OS-II allows a task to get messages Last-In-First-Out (LIFO)." The second sentence is ambiguous. Does it mean "In addition to the ability to extract messages in a FIFO fashion, ..." or "In addition, in order to extract messages in a FIFO fashion, ..."? On the next page the author states "Interrupts allow a microprocessor to process events when they occur, which prevents the microprocessor from continuously polling (looking at) an event to see if it has occurred." In this sentence, "prevents the microprocessor from" should be changed to "removes the need for the microprocessor to be". The average reader already knows enough about LIFOs, FIFOs, and interrupts to interpret these sentences correctly, but in many other cases the lack of clarity is a serious impediment to understanding. The book also contains various errors. For example, the path name of a .xls file, given on pages 370 and 403, is incorrect.