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System Management Features Fuse enabled Watchdog Timer with its own RC oscillator Programmable Time out: 2 ms - 16 sec Power On Reset with a programmable delay 0, 4, 16, 64ms Brown-out

TS Nguyễn Hồng Quang

Hardware

DsPIC

Objectives

Categories

DsPIC 16 bit microcontroller

Sizes

System Management

Features

Fuse enabled Watchdog Timer with its own RC

oscillator

Programmable Time out: 2 ms - 16 sec

Power On Reset with a programmable delay 0, 4,

16, 64ms

Brown-out Reset with programmable levels

Low Vdd Detect Interrupt with programmable levels

Flash: 64, 128 and 256K O

Larger RAM: 8K, 16K and 30KB

DMA (Direct Memory Access) Controller

Upward compatible with dsPIC30F

Upward compatible with PIC24

emory Access) Controller

Target Operating Parameters

* Op Speed over entire Vdd and Temp Range

Interrupt vector

 Total of 118 available interrupts

 Like dsPIC30, all interrupts may be individually enabled and assigned to one of seven priority levels

 Interrupts can be directed to vector through an Alternate interrupt

vector table

 Program address hex 200 on

dspic33 devices rather than hex 100

as on dsPIC30 devices.

Math error

Math error

 The OVA and OVB bits indicate an overflow

condition in either accumulator a or b, The OVA bit will only be cleared when the user clears the MATHERR trap status flag

 The COVA and COVB bits indicate an

catastrophic overflow condition

 The SFTERR bit indicates an error while

executing a shift instruction

 The DIVERR indicates an attempt to divide by

0

dsPIC33F DMA Controller

 dsPIC33 includes Direct Memory Access (DMA) controller for efficient data movement The devices include eight DMA channels

DMA-Ready Peripherals

dsPIC33F Flash Memory

dSPIC33 in circuit serial

programming

the dSPIC33 support in circuit serial

programming, called ICSP

The interface to the device is done with

2 pins for clock and data and a reset pin.

It also enables field upgrades to the

system using a small connector

Programming times in ICSP is similar to those for factory programming

Run Time Self Programming OR Self Programming

Device can program its own FLASH memory

Ideal for “calibration” or “parameterization” in final test O

Ideal for “Remote code update”

For very high endurance requirements, external

serial EEPROM offers a simple, cost effective solution

dsPIC30 I/O Levels

dsPIC 33F I/O level

UART feature

System Integration Features

Clock sources

XTL,XT,HS Primary Xtal OSC

Clock Divide

By

1, 4, 16, 64

32KHz Timer1 Xtal

OSC

System Clock

or bypass

 Includes 2 Internal RC Oscillators

 Primary Oscillator for Crystals

 Primary Oscillator for Crystals

 32 kHz for Real Time Clock

 32 kHz for Real Time Clock

PLL operation

PLL operation

PLL operation

dsPIC33F Peripherals Overview

dsPIC30 UART had software LIN bus support,

 hardware support for LIN

 Hardware Autobaud detection

 Hardware Break generation

 Added IRDA support

 Hardware encoder / decoder

 Transmit and Receive Polarity Control

 Added ÷4 Baud Clock Mode

 4 times faster than ÷16 mode

A/D features

Two A/D modules on some devices

More Analog Inputs

 Up to 32 in 100-pin devices

 Up to 24 in 80-pin devices

 Up to 18 in 64-pin devices

 Run time configuration of A/D parameters

 Each module configurable as

 10-bit or 12-bit A/D converter

10 Bit or 12 Bit

Each A/D Module can operate in 2 modes

 4-S/H channel 10-bit 1.1MSPS

 1-S/H channel 12-bit 500KSPS

 Change mode at any time

 While device is operating

 Selection with SFR bit in ADCON

10 bit or 12 bit operation

10 bit A/D configuration

12-bit A/D Block Diagram

A/D Options

So sánh dsPIC30F to

dsPIC33F

dsPIC33F is upward compatible

 dsPIC30F is a 2.5-5.5V part, dsPIC33F is a 3.3V part

dsPIC33F does not have Data EEPROM

 Program Flash can serve as Data Flash

 dsPIC33F initially is offered at Industrial Temp only

So sánh 3.3V, 5V

dsPIC33F operates from a single supply: 3.0-3.6V

 Core operates at 2.5v

 On-chip Voltage regulator generates 2.5V

Pin Output drives 3.3V

Pin Input is 5V tolerant

Analog input range: 0 - 3.6V

 Migrating a dsPIC30F system to dsPIC33F

Compatibility: Pin-out

Tools

Library

Key support documents