Microchip Technology MPLAB ICE, Руководство пользователя

Страница: 180 / 192

MPLAB
®
IDE User’s Guide
DS51159B-page 180

2001 Microchip Technology Inc.
Real-Time
When released from the halt state in the emulator or MPLAB ICD mode, the
processor runs in real-time mode and behaves exactly as the normal chip
would behave. In real-time mode, the real-time trace buffer of MPLAB ICE is
enabled and constantly captures all selected cycles and all break logic is
enabled. In the emulator or MPLAB ICD, the processor executes in real-time
until a valid break point causes a halt, or until the user halts the emulator.
In the simulator real-time simply means execution of the microcontroller
instructions as fast as they can be simulated by the host CPU.
Recursion
The concept that a function or macro, having been defined, can call itself.
Great care should be taken when writing recursive macros; it is easy to get
caught in an infinite loop where there will be no exit from the recursion.
Relocatable Section
A section whose address is not fixed (absolute). The linker assigns addresses
to relocatable sections through a process called relocation.
Relocation
A process performed by the linker in which absolute addresses are assigned
to relocatable sections and all identifier symbol definitions within the
relocatable sections are updated to their new addresses.
ROM
Read Only Memory (Program Memory).
Run
The command that releases the emulator from halt, allowing it to run the
application code and change or respond to I/O in real time.
Section
An portion of code or data which has a name, size and address.
SFR
Special Function Registers of a PICmicro.
Shared Section
A section which resides in a shared (non-banked) region of data RAM.
Shell
The MPASM shell is a prompted input interface to the macro assembler.
There are two MPASM shells: one for the DOS version and one for the
Windows
version.
Simulator
A software program that models the operation of the PICmicro
microprocessor.