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MPLAB ? REAL ICE ? IN-CIRCUIT
EMULATOR USER ’S GUIDE
Chapter 9. Frequently Asked Questions (FAQ)
9.1
9.2
INTRODUCTION
Look here for answers to frequently asked questions about the MPLAB REAL ICE
in-circuit emulator system.
HOW DOES IT WORK FAQs
? What's in the silicon that allows it to communicate with the MPLAB REAL ICE
in-circuit emulator?
MPLAB REAL ICE in-circuit emulator can communicate with any silicon via the
ICSP interface. It uses the debug executive located in test memory.
? How is the throughput of the processor affected by having to run the debug
executive?
The debug executive doesn't run while in Run mode, so there is no throughput
reduction when running your code, i.e., the emulator doesn’t ‘steal’ any cycles
from the target device. However, when you are doing Native trace, each macro
inserted takes about 200 instructions. Therefore, this will affect timing.
? How does the MPLAB REAL ICE in-circuit emulator compare with other in-circuit
emulators/debuggers?
? How does MPLAB IDE interface with the MPLAB REAL ICE in-circuit emulator to
allow more features than in-circuit debuggers?
For some devices, the MPLAB REAL ICE in-circuit emulator communicates using
the debug executive located in a special area of memory that does not use appli-
cation program memory. Also, the debug exec is streamlined for more efficient
communication. The emulator contains an FPGA, large SRAM Buffers (1Mx8),
and a high speed USB interface. The program memory image is downloaded and
is contained in the SRAM to allow faster programming. The FPGA in the emulator
serves as an accelerator for interfacing with the device in-circuit debugger
modules.
? On traditional emulators, the data must come out on the bus in order to perform a
complex trigger on that data. Is this also required on the MPLAB REAL ICE
in-circuit emulator? For example, could I halt based on a flag going high?
Traditional emulators use a special emulator chip (-ME) for monitoring. There is
no -ME with the MPLAB REAL ICE in-circuit emulator so there are no busses to
monitor externally. With the MPLAB REAL ICE in-circuit emulator, rather than
using external breakpoints, the built-in breakpoint circuitry of the debug engine is
used; the busses and breakpoint logic are monitored inside the part.
? 2008 Microchip Technology Inc.
DS51616B-page 83
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相关PDF资料
AC244006
KIT MPLAB REAL ICE TRACE
AC2626M6
PROBE TEMP 6" GENERAL PURP
AC300024
MOTOR STEPPER 2PHASE 8WIRE
AC300030
KIT ACOUSTIC ACCESSORY
ACM-16
CABLE MODULE FR3 16BIT 40-DIP
ACM-2X8
ACTIVE CABLE MODULE DUAL 8 BIT
ACM-8
CABLE MODULE FR3 8BIT 28/32-DIP
ACS9510EVB
EVALUATION BOARD FOR ACS9510
相关代理商/技术参数
AC244005-2
功能描述:处理器配件 MPLAB REAL ICE w/ Performace Pak RoHS:否 制造商:Olimex Ltd. 产品:Cable 用于:
AC244006
功能描述:仿真器/模拟器 MPLAB REAL ICE TRACE INTERFACE Brd KIT RoHS:否 制造商:Blackhawk 产品:System Trace Emulators 工具用于评估:C6000, C5000, C2000, OMAP, DAVINCI, SITARA, TMS470, TMS570, ARM 7/9, ARM Cortex A8/R4/M3 用于:XDS560v2
AC244007
制造商:Microchip Technology Inc 功能描述:MPLAB REAL ICE JTAG ADAPTER - Boxed Product (Development Kits) 制造商:Microchip Technology Inc 功能描述:ADAPTER MPLAB REAL ICE JTA 制造商:Microchip Technology Inc 功能描述:ADAPTER, MPLAB, REAL, ICE, JTAG 制造商:Microchip Technology Inc 功能描述:ADAPTER, MPLAB, REAL, ICE, JTAG; Accessory Type:JTAG adaptor Board; For Use With:Microchip PIC32MX devices; SVHC:No SVHC (19-Dec-2012) ;RoHS Compliant: Yes
AC244008
功能描述:处理器配件 MPLAB REAL ICE Power Monitor
RoHS:否 制造商:Olimex Ltd. 产品:Cable 用于:
AC244022
功能描述:插座和适配器 Procs Extnsn Pak for PIC24FJ128GA010-ICE RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x
AC244022
制造商:Microchip Technology Inc 功能描述:Processor Extension Pak for PI
AC244023
功能描述:插座和适配器 PROCESSOR EXTNSN PAK FOR PIC18F1xK50 RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x
AC244024
功能描述:插座和适配器 Processor Ext Pak for PIC18LF14K50 RoHS:否 制造商:Silicon Labs 产品:Adapter 用于:EM35x