參數(shù)資料
型號: PP-MOD1V2
英文描述: ISP INTERFACE MODULE
中文描述: ISP的接口模塊
文件頁數(shù): 25/48頁
文件大?。?/td> 3471K
代理商: PP-MOD1V2
ISP Interface Module Version 1.00 27/06/01
18
5.0 LED S tatus Indic ators
5.1 Programmer Status LED’s
The PIM features a traffic light 3-way LED Status Indicator. These LED’s are controlled from
a PPM programmer (PRO101) and will mimic the LED’s on the programmer exactly. The
possible status conditions are described in the table below. Please consult the PPM Manual
for a full description.
Figure 36
LED Condition
Flashing Green
Flashing Red
Status Description
Target System Powered Off (Programmer Inactive)
Programming Operation Failed or Programmer has Rebooted
Programmer in ‘Wait Disconnect’ state.
Target is powered OFF, but ‘Target Sense’ circuit is active.
Programmer is BUSY.
Programmer is either executing a ‘script command’ or running an auto-
program project.
Flashing Yellow
Constant Yellow
Figure 37
5.2 Target Vcc Presence LED
The PIM features an LED (LD4) which illuminates when a Target Vcc voltage is sensed. The
threshold voltage for illuminating the LED is approx 2.5V. This LED is powered from the PIM
+5V supply which is derived from the programmer and so does not load the Target Vcc
supply. The LED will illuminate whether the programmer is powering the Target System or
not (see Link LK4).
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