參數(shù)資料
型號: AN2528
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: Standard Space Vector Modulation TPU Function Set (svmStd)
中文描述: 空間矢量調制標準聚氨酯函數(shù)集(svmStd)
文件頁數(shù): 17/28頁
文件大?。?/td> 514K
代理商: AN2528
AN2528/D
Detailed Function Description
Standard Space Vector Modulation TPU Function Set (svmStd)
For More Information On This Product,
Go to: www.freescale.com
17
Figure 9. Synchronization signal adjustment examples
Synchronized Change
of PWM Prescaler
And Synchronization
Signal Prescaler
The svmStd_sync TPU function actually uses the
presc_copy
parameter
instead of the
prescaler
parameter. The
prescaler
parameter holds the
prescaler value that is copied to the
presc_copy
by the svmStd_bottom function
at the time the PWM parameters are reloaded. This ensures that new prescaler
values for the PWM signals, as well as the synchronization signal, are applied
at the same time. Write the synchronization signal
prescaler
parameter
address to the
sync_presc_addr
parameter to enable this mechanism. Write 0
to disable it, and remember to set the synchronization signal
presc_copy
parameter instead of the
prescaler
parameter in this case.
Host Interface
center_time
T
center_time
T
center_time
T
pw
|move|
move < 0
prescaler = 2
center_time
T
center_time
T
pw
|move|
move > 0
prescaler = 1
Table 11. svmStd_sync Control Bits
Name
Options
Channel Function Select
svmStd_sync function number
(Assigned during assembly the
DPTRAM code from library TPU
functions)
00 – Channel Disabled
01 – Low Priority
10 – Middle Priority
11 – High Priority
Channel Priority
Written By CPU
Written By TPU
Written by both CPU and TPU
Not Used
3
2
1
0
1
0
F
Freescale Semiconductor, Inc.
n
.
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相關代理商/技術參數(shù)
參數(shù)描述
AN25-28 制造商: 功能描述:
AN2528D 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Standard Space Vector Modulation TPU Function Set (svmStd)
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AN2532 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Standard Space Vector Modulation ? 3 outputs version TPU Function Set (svmStd3)