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參數(shù)資料
| 型號(hào)： | AN2104 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | Using Background Debug Mode for the M68HC12 Family |
| 中文描述： | 使用的M68HC12家庭背景調(diào)試模式 |
| 文件頁數(shù)： | 2/20頁 |
| 文件大?。?/td> | 414K |
| 代理商： | AN2104 |
Application Note
AN2104
2
When the BDM is active, it takes over control of the microprocessor,
which allows for debugging, etc.
Other examples of what the BDM can be used for, besides debugging,
vary from programming EPROM, EEPROM, and FLASH (internal and
external) to performing calibration on a target application (in
manufacturing and in the field) to transferring collected and stored
information to another system.
Theory of Operation
Because software packages, such as P&E Microcomputer Systems’
Windows Development Package (PKG12), take care of the operation of
the BDM, this discussion does not go into great detail. For more in-depth
information on this subject, refer to the documents referenced in
Technical Resources
at the end of this document.
The operation of the BDM system requires a host PC with software, a
BDM interface POD or BDM interface, and the user’s target application.
See
Figure 1
. The host PC is connected to the POD with a DB-25
parallel cable from the PC’s parallel port. The POD is then connected to
the target application via a custom 6-pin BDM connector and cable. See
Figure 2
.
Figure 1. BDM System
HOST PC
INTERFACE POD
BDM INTERFACE
TARGET BOARD
PARALLEL
CABLE
CABLE12 FROM P&E
MICROCOMPUTER SYSTEMS
BDM
CABLE
6-PIN BDM CONNECTOR
SEE
FIGURE 2
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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