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参数资料
| 型号： | DSPIC30F5016-30I/PT |
| 厂商： | Microchip Technology |
| 文件页数： | 120/129页 |
| 文件大小： | 0K |
| 描述： | IC DSPIC MCU/DSP 66K 80TQFP |
| 产品培训模块： | dsPIC30F Quadrature Encoder Interface Serial Communications using dsPIC30F CAN Serial Communications using dsPIC30F I2C Serial Communications using dsPIC30F SPI Serial Communications using dsPIC30F UART dsPIC30F 12 bit ADC - Part 2 dsPIC30F Addressing Modes - Part 1 dsPIC30F Architecture - Part 1 dsPIC30F DSP Engine & ALU Asynchronous Stimulus dsPIC30F Addressing Modes - Part 2 dsPIC30F Architecture - Part 2 dsPIC30F 12-bit ADC Part 1 |
| 标准包装： | 119 |
| 系列： | dsPIC™ 30F |
| 核心处理器： | dsPIC |
| 芯体尺寸： | 16-位 |
| 速度： | 30 MIP |
| 连通性： | CAN，I²C，SPI，UART/USART |
| 外围设备： | 高级欠压探测/复位，电机控制 PWM，QEI，POR，PWM，WDT |
| 输入/输出数： | 68 |
| 程序存储器容量： | 66KB（22K x 24） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 1K x 8 |
| RAM 容量： | 2K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.5 V ~ 5.5 V |
| 数据转换器： | A/D 16x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 80-TQFP |
| 包装： | 托盘 |
| 产品目录页面： | 651 (CN2011-ZH PDF) |
| 配用： | AC164320-ND - MODULE SKT MPLAB PM3 80TQFP AC30F007-ND - MODULE SKT FOR DSPIC30F 80TQFP DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE |
| 其它名称： | DSPIC30F501630IPT |
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dsPIC30F5015/5016
DS70149D-page 90
2008 Microchip Technology Inc.
14.1
Quadrature Encoder Interface
Logic
A typical incremental (a.k.a. optical) encoder has three
outputs: Phase A, Phase B and an index pulse. These
signals are useful and often required in position and
speed control of ACIM and SR motors.
The two channels, Phase A (QEA) and Phase B (QEB),
have a unique relationship. If Phase A leads Phase B,
then the direction (of the motor) is deemed positive or
forward. If Phase A lags Phase B, then the direction (of
the motor) is deemed negative or reverse.
A third channel, termed index pulse, occurs once per
revolution and is used as a reference to establish an
absolute position. The index pulse coincides with
Phase A and Phase B, both low.
14.2
16-bit Up/Down Position Counter
Mode
The 16-bit up/down counter counts up or down on
every count pulse, which is generated by the difference
of the Phase A and Phase B input signals. The counter
acts as an integrator, whose count value is proportional
to position. The direction of the count is determined by
the UPDN signal, which is generated by the
Quadrature Encoder Interface logic.
14.2.1
POSITION COUNTER ERROR
CHECKING
Position count error checking in the QEI is provided for
and indicated by the CNTERR bit (QEICON<15>). The
error checking only applies when the position counter
is configured for Reset on the Index Pulse modes
(QEIM<2:0> = 110 or 100). In these modes, the
contents of the POSCNT register are compared with
the values (0xFFFF or MAXCNT + 1, depending on
direction). If these values are detected, an error
condition is generated by setting the CNTERR bit and
a QEI count error interrupt is generated. The QEI count
error interrupt can be disabled by setting the CEID bit
(DFLTCON<8>). The position counter continues to
count encoder edges after an error has been detected.
The POSCNT register continues to count up/down until
a natural rollover/underflow. No interrupt is generated
for the natural rollover/underflow event. The CNTERR
bit is a read/write bit and reset in software by the user.
14.2.2
POSITION COUNTER RESET
The Position Counter Reset Enable bit, POSRES
(QEICON<2>), controls whether the position counter is
reset when the index pulse is detected. This bit is only
applicable when QEIM<2:0> = 100 or 110.
If the POSRES bit is set to ‘1’, then the position counter
is reset when the index pulse is detected. If the
POSRES bit is set to ‘0’, then the position counter is not
reset when the index pulse is detected. The position
counter will continue counting up or down, and will be
reset on the rollover or underflow condition.
The interrupt is still generated on the detection of the
index pulse and not on the position counter
overflow/underflow.
14.2.3
COUNT DIRECTION STATUS
As mentioned in the previous section, the QEI logic
generates an UPDN signal, based upon the
relationship between Phase A and Phase B. In addition
to the output pin, the state of this internal UPDN signal
is supplied to a SFR bit, UPDN (QEICON<11>), as a
read-only bit. To place the state of this signal on an I/O
pin, the SFR bit, PCDOUT (QEICON<6>), must be ‘1’.
14.3
Position Measurement Mode
There are two measurement modes which are
supported and are termed x2 and x4. These modes are
selected by the QEIM<2:0> mode select bits located in
SFR QEICON<10:8>.
When control bits QEIM<2:0> = 100 or 101, the x2
Measurement mode is selected and the QEI logic only
looks at the Phase A input for the position counter
increment rate. Every rising and falling edge of the
Phase A signal causes the position counter to be
incremented or decremented. The Phase B signal is
still utilized for the determination of the counter
direction, just as in the x4 mode.
Within the x2 Measurement mode, there are two
variations of how the position counter is reset:
Position counter reset by detection of index pulse,
QEIM<2:0> = 100.
Position counter reset by match with MAXCNT,
QEIM<2:0> = 101.
When control bits QEIM<2:0> = 110 or 111, the x4
Measurement mode is selected and the QEI logic looks
at both edges of the Phase A and Phase B input
signals. Every edge of both signals causes the position
counter to increment or decrement.
Within the x4 Measurement mode, there are two
variations of how the position counter is reset:
Position counter reset by detection of index pulse,
QEIM<2:0> = 110.
Position counter reset by match with MAXCNT,
QEIM<2:0> = 111.
The x4 Measurement mode provides for finer
resolution data (more position counts) for determining
motor position.
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| dsPIC30F5016T-20E/PT | 功能描述:数字信号处理器和控制器 - DSP, DSC 20MIPS 66 KB RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| DSPIC30F5016T-20I/PT | 功能描述:IC DSPIC MCU/DSP 66K 80TQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:dsPIC™ 30F 产品培训模块:XLP Deep Sleep Mode 8-bit PIC® Microcontroller Portfolio 标准包装:22 系列:PIC® XLP™ 18F 核心处理器:PIC 芯体尺寸:8-位 速度:48MHz 连通性:I²C，SPI，UART/USART，USB 外围设备:欠压检测/复位，POR，PWM，WDT 输入/输出数:14 程序存储器容量:8KB（4K x 16） 程序存储器类型:闪存 EEPROM 大小:256 x 8 RAM 容量:512 x 8 电压 - 电源 (Vcc/Vdd):1.8 V ~ 5.5 V 数据转换器:A/D 11x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:20-DIP（0.300"，7.62mm） 包装:管件 产品目录页面:642 (CN2011-ZH PDF) 配用:DV164126-ND - KIT DEVELOPMENT USB W/PICKIT 2DM164127-ND - KIT DEVELOPMENT USB 18F14/13K50AC164112-ND - VOLTAGE LIMITER MPLAB ICD2 VPP |
| dsPIC30F5016T-30I/PT | 功能描述:数字信号处理器和控制器 - DSP, DSC 30MIPS 66 KB RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
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