參數(shù)資料
型號： MC3310
廠商： Electronic Theatre Controls, Inc.
英文描述： Motion Processor
中文描述： 運動處理器
文件頁數(shù)： 62/83頁
文件大?。?/td> 1080K
代理商： MC3310
MC3310 Technical Specifications
62
7 Application Notes
7.1
Design Tips
The following are recommendations for the design of circuits that utilize a PMD Motion Processor.
Serial Interface
If the serial configuration decode logic is not implemented (see section 7.2) the CP data bus should
be tied high. This places the serial interface in a default configuration of 9600,n,8,1 after power on
or reset.
Controlling PWM output during reset
When the motion processor is in a reset state (when the reset line is held low) or immediately after a
power on, the PWM outputs can be in an unknown state, causing undesirable motor movement. It is
recommended that the enable line of any motor amplifier be held in a disabled state by the host
processor or some logic circuitry until communication to motion processor is established. This can
be in the form of a delay circuit on the amplifier enable line after power up, or the enable line can be
ANDed with the CP reset line.
Parallel word encoder input
When using parallel word input for motor position, it is useful to also decode this information into
the User I/O space. This allows the current input value to be read using the chip instruction ReadIO
for diagnostic purposes.
Using a non standard system clock frequency
It is often desirable to share a common clock among several components in a design. In the case of
the PMD Motion Processors it is possible to use a clock below the standard value of 20MHz. In this
case all system frequencies will be reduced as a fraction of the input clock verses the standard
20MHz clock. The list below shows the affected system parameters:-
Serial baud rate
PWM carrier frequency
Timing characteristics as shown in section 3.2
Cycle time
Commutation rate
For example, if an input clock of 17MHz is used with a serial baud rate of 9600 the following timing
changes will result:-
Serial baud rate decreases to 9600 bps *17/20 = 8160 bps
PWM frequency decreases to 20 KHz *17/20 = 17 KHz
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC3310-011-01 制造商:SPC Multicomp 功能描述:SWITCH DPST LATCHING BLACK 制造商:SPC Multicomp 功能描述:SWITCH, DPST, LATCHING, BLACK 制造商:SPC Multicomp 功能描述:SWITCH, PUSHBUTTON, DPST, 16A, 250V; Contact Configuration:DPST; Switch Operation:On-Off; Contact Voltage AC Nom:250V; Contact Current Max:16A; Actuator Style:Rectangular; Switch Terminals:Quick Connect, Solder; Circuitry:DPST ;RoHS Compliant: Yes
MC3310-031-01 制造商:SPC Multicomp 功能描述:SWITCH DPST MOM BLACK 制造商:SPC Multicomp 功能描述:SWITCH, DPST, MOM, BLACK
MC3310-051-02 制造商:SPC Multicomp 功能描述:SWITCH DPST LATCHING RED 制造商:SPC Multicomp 功能描述:SWITCH, DPST, LATCHING, RED 制造商:SPC Multicomp 功能描述:SWITCH, PUSHBUTTON, DPST, 16A, 250V; Contact Configuration:DPST; Switch Operation:On-Off; Contact Voltage AC Nom:250V; Contact Current Max:16A; Actuator Style:Rectangular; Switch Terminals:Quick Connect, Solder; Circuitry:DPST ;RoHS Compliant: Yes
MC3310-051-05 制造商:SPC Multicomp 功能描述:SWITCH DPST LATCHING GREEN 制造商:SPC Multicomp 功能描述:SWITCH, DPST, LATCHING, GREEN 制造商:SPC Multicomp 功能描述:SWITCH, PUSHBUTTON, DPST, 16A, 250V; Contact Configuration:DPST; Switch Operation:On-Off; Contact Voltage DC Nom:250V; Contact Current Max:16A; Actuator Style:Rectangular; Switch Terminals:Quick Connect, Solder; Circuitry:DPST ;RoHS Compliant: Yes
MC33102 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Amplifiers and Comparators
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