參數(shù)資料
型號(hào): CYCLONE08UM
英文描述: MON08 Cyclone Users Manual
中文描述: 的MON08氣旋用戶手冊(cè)
文件頁數(shù): 39/64頁
文件大?。?/td> 756K
代理商: CYCLONE08UM
MON08 Cyclone User Manual
37
P&E
Microcomputer
Systems, Inc.
MON08 CYCLONE
5.2.3
Clock Division
The user may freely choose the clock division (if the target supports) as long as
the target bus frequency stays within specification. If the port pin that
determines the clock division is not connected to the target MON08 Header,
the user can safely ignore this selection.
Typically the clock division does not affect the communications between the
MON08 CYCLONE and the target. Normally a smaller clock division leads to
faster target bus frequencies, and faster communications between the MON08
CYCLONE and the target, which in turn leads to a shorter programming time.
5.3
Baud Rate and Security Settings
Figure 5-3: Baud Rate And Security Settings Dialog Section
This configuration field provides faster monitor ROM entrance for known
baud rate and security bytes.
If the “Use Specified Baud Rate and Security Bytes” checkbox is checked, the
Baud Rate and Security Bytes that are specified in this field are tried first when
the CYCLONE contacts the target. If the target enters the Monitor Mode
successfully, the CYCLONE will execute the instructed programming
operations immediately.
If “Use Specified Baud Rate and Security” is NOT checked, or if the target
fails to enter the Monitor Mode using the specified baud rate and security
bytes, the CYCLONE will automatically detect the communications baud rate,
ignore the security, enter the Monitor Mode, erase the target device, power
cycle the target, and re-enter the Monitor Mode using blank security bytes.
5.4
Target Power Down/Up Delay in Milliseconds
Figure 5-4: Target Power Down/Up Delay Dialog Section
The user needs to take into account the power discharge time for the Power
Down delay. The reset driver delays, power stabilization time, and the target
clock stabilization time should be considered for the Power Up delay.
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