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| 型號(hào)： | DSPCOMMANDUM |
| 英文描述： | Universal Command Converter for DSP User＇s Manual |
| 中文描述： | 通用命令轉(zhuǎn)換為數(shù)字信號(hào)處理器用戶手冊(cè) |
| 文件頁(yè)數(shù)： | 29/70頁(yè) |
| 文件大?。?/td> | 550K |
| 代理商： | DSPCOMMANDUM |
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Configuring the Command Converter
Motorola
Preparation and Installation
2-13
2.2.1 Selecting the Command Converter Device Number
The command converter’s JG2 jumper group selects the device number that this particular
command converter will respond to when commanded by the user interface program.
Table 2-2 describes the device address select option:
Note:
All command converters are factory configured for device address 0.
2.2.2 JTAG/OnCE Port Buffer V
DD
In order to provide support for low voltage DSPs (5V-2.7V), an advanced low voltage
CMOS buffer exists between the DSP56002 controller and the target JTAG/OnCE
interface cable. This buffer has its V
DD
pin connected to JG1, Pin 2. See Table 2-3 for
CMOS buffer V
DD
configuration.
Note:
The universal command converter is factory-configured for the JTAG/OnCE
buffers to be powered from the target system (JG1 2–3).
2.2.3 Command Converter Monitor Firmware Upgrades
The monitor code for the command converter, which is tailored for the target DSP family
in use, is provided with the ADS software. The code is downloaded automatically into the
Table 2-2. Command Converter Device Number Selection
Device Address
JG2
0 (default)
no jumpers
1
5–6
2
3–4
3
3–4, 5–6
4
1–2
5
1–2, 5–6
6
1–2, 3–4
7
1–2, 3–4, 5–6
Table 2-3. CMOS Buffer V
DD
Configuration
V
DD
Source
JG1
Supply V
DD
from Host System (+5 V)
1–2
Supply V
DD
from Target System (default)
2–3
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