参数资料
型号: PP-MOD1V2
英文描述: ISP INTERFACE MODULE
中文描述: ISP的接口模块
文件页数: 34/48页
文件大小: 3471K
代理商: PP-MOD1V2
ISP Interface Module Version 1.00 27/06/01
27
8.0 PPM/Target System Power Supply
Configuration
8.1 Overview
The PPM (PRO101/104/108) is capable of supplying ‘controlled’ power to the Target System
during a programming operation. It is also possible to use an external power supply to power
the Target System, but this cannot be controlled (i.e. switched on and off) by the PPM.
However, the presence of the external Target Vcc can be detected by a circuit on the PIM
and can trigger an auto-programming sequence.
8.2 Selecting the Target Power Supply Configuration
The following Programmer (PPM) / Target System power supply configurations are possible:
Option Link LK4 Figure
number
1
CLOSED
(Default)
The PPM supplies power to the Target System.
The Target Vcc is connected to the PPM Vout voltage (PPM J1
pin 20).
2
OPEN
Figure 50
Target System is independently powered
Target System is powered from an external supply.
Target Vcc is not connected to PPM Vout.
Configuration Description
Figure 49
PPM powers the Target System
Figure 48 – PPM / Target System Power Supply Configurations
To select the required configuration, simply jumper LK4 as detailed in the table above.
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