Microchip dsPIC33FJ16系列高性能低成本马达控制方案

1、microchip dspic33fj16系列高性能低成本马达控制方案 公司的ds33fj16gp101/102和dspic33fj16mc101/102 是高性能超低成本数字信号控制器（dsc），包含了功能和高性能16位架构,3.0v-3.6v的性能高达16，可扩展的工作温度-40到 +125，主要用在家用电器如洗衣机,医疗设备如输液泵，工业如ac马达等.本文介绍dspic33fj16系列主要特性，方框图，cpu核方框图和应用以及马达控制板系统框图，和材料清单（bom）。 this document contains device specific information for the d

2、spic33fj16gp101/102 anddspic33fj16mc101/102 digital signal controller(dsc) devices. the dspic33f devices containextensive digital signal processor (dsp) functionality with a high-performance, 16-bit microcontroller (mcu) architecture.dspic33fj16系列主要特性:operating range:up to 16 mips operation (3.0v-3.

3、6v):- industrial temperature range (-40 to +85)- extended temperature range (-40 to +125)on-chip flash and sram:flash program memory (16 kbytes)data sram (1 kbyte)security for program flashsystem management:flexible clock options:- external, crystal, resonator, internal frc- phase-locked loop (pll)h

4、igh-accuracy internal frc- ±0.25% typicalpower-on reset (por)power-up timer (pwrt)oscillator start-up timer (ost)brown-out reset (bor)watchdog timer with its own rc oscillatorfail-safe clock monitor (fscm)motor control :6-channel 16-bit motor control pwm:- three duty cycle generators- independe

5、nt or complementary mode- programmable dead time and output polarity- edge-aligned or center-aligned- manual output override control- up to two fault inputs- trigger for conversions- pwm frequency for 16-bit resolution ( 16 mips) = 488 hz for edge-aligned mode, 244 hz for center-aligned mode- pwm fr

6、equency for 11-bit resolution ( 16 mips) = 15.63 khz for edge-aligned mode, 7.81 khz for center-aligned modepower management:single supply on-chip voltage regulatorswitch between clock sources in real timeidle, sleep, and doze modes with fast wake-upanalog peripherals:10-bit, 1.1 msps analog-to-digi

7、tal converter (adc):- two and four simultaneous samples- up to six input channels with auto-scanning- conversion start can be manual or synchronized with one of four trigger sources- sleep mode conversion for low-power applications- ±2 lsb max integral nonlinearity- ±1 lsb max differential

8、 nonlinearitythree analog comparators with programmable input/output configuration:- up to four inputs per comparator- blanking function- output digital filtercharge time measurement unit (ctmu):- supports capacitive touch sensing for touch screens and capacitive switches (mtouch )- provides high-re

9、solution time measurement for advanced sensor applications- 200 ps resolution for time measurement and accurate temperature sensing- on-chip high-resolution temperature measurement capabilitytimers/capture/compare/pwm:timer/counters, up to three 16-bit timers:- can pair up to make one 32-bit timer-

10、one timer runs as real-time clock with external 32.768 khz oscillator- programmable prescalerinput capture (up to three channels):- capture on up, down, or both edges- 16-bit capture input functions- 4-deep fifo on each captureoutput compare (up to two channels):- single or dual 16-bit compare mode-

11、 16-bit glitchless pwm modehardware real-time clock and calendar (rtcc):- provides clock, calendar and alarm functiondigital i/o:peripheral pin select functionalityup to 21 programmable digital i/o pinswake-up/interrupt-on-change for up to 21 pinsoutput pins can drive from 3.0v to 3.6vup to 5.5v out

12、put with open drain configuration on 5v tolerant pinsall digital input pins are 5v tolerantup to 8 ma sink on designated pinscommunication modules:4-wire spi:- framing supports i/o interface to simple codecs- supports 8-bit and 16-bit data- supports all serial clock formats and sampling modesi2c :-

13、full multi-master slave mode support- 7-bit and 10-bit addressing- bus collision detection and arbitration- integrated signal conditioning- slave address maskinguart:- interrupt on address bit detect- interrupt on uart error- wake-up on start bit from sleep mode- 4-character tx and rx fifo buffers-

14、lin 2.0 bus support- irda encoding and decoding in hardware- high-speed mode- hardware flow control with cts and rtsinterrupt controller:5-cycle latencyup to 23 available interrupt sourcesup to three external interruptsseven programmable priority levelsfour processor exceptionshigh-performance mcu c

15、pu features:modified harvard architecturec compiler optimized instruction set16-bit-wide data path24-bit-wide instructionsprogram memory addressing up to 4m instruction wordslinear data memory addressing up to 64 kbytes73 base instructions: mostly one word/one cycleflexible and powerful indirect add

16、ressing modesoftware stack16 x 16 integer multiply operations32/16 and 16/16 integer divide operationsup to ±16-bit shiftsadditional high-performance dsc cpu features:11 additional instructionstwo 40-bit accumulators with rounding and saturation optionsadditional flexible and powerful addressing modes:- modulo- bit-reversedsingle-cycle multiply and accumula