Z-World Fox LP3500 User Manual - 4.  S

User’s Manual

35

4.  S

OFTWARE

Dynamic C is an integrated development system for writing

embedded software. It runs on an IBM-compatible PC and is

designed for use with Z-World single-board computers and other

devices based on the Rabbit microprocessor.

Chapter 4 provides the libraries, function calls, and sample pro-

grams related to the LP3500.

You have a choice of doing your software development in the flash memory or in the static 

RAM included on the LP3500. The advantage of working in RAM is to save wear on the 

flash memory, which is limited to about 100,000 write cycles.

NOTE:

An application can be developed in RAM, but cannot run standalone from RAM 

after the programming cable is disconnected. All standalone applications can only run 

from flash memory.

The disadvantage of using flash memory for debug is that interrupts must be disabled for 

approximately 5 ms whenever a break point is set in the program. This can crash fast inter-

rupt routines that are running while you stop at a break point or single-step the program. 

Flash memory or RAM is selected on the 

Options > Project Options > Compiler

 menu.

Dynamic C provides a number of debugging features.  You can single-step your program, 

either in C, statement by statement, or in assembly language, instruction by instruction. 

You can set break points, where the program will stop, on any statement. You can evaluate 

watch expressions. A watch expression is any C expression that can be evaluated in the 

context of the program. If the program is at a break point, a watch expression can view any 

expression using local or external variables.