dsPIC30F to dsPIC33F Conversion Guidelines

dsPIC30F to dsPIC33F
dsPIC30F to dsPIC33F Conversion Guidelines
Author:
Both families support Programmable Power-up Timer
(POR). The port I/O sink/source current is 4mA for the
dsPIC33F devices versus 25mA for the dsPIC30F
devices.
Richard L. Fischer
Microchip Technology Inc.
GENERAL INFORMATION
This document provides an overview of considerations
for converting from dsPIC30F to dsPIC33F devices. If
you are undertaking this conversion, it is recommended
that you download data sheets and errata documents
on
these
devices
from
our
web
site,
www.microchip.com.
The dsPIC33F devices are 3.3 VDC operational
devices. If the dsPIC30F design was originally implemented at 3.3 VDC, this would greatly simplify the conversion to the dsPIC33F family.
Both families are pin-compatible with the exception of
one pin on the 64- and 80-pin devices. The dsPIC33F
VDDCORE pin (pin 56 on 64-pin TQFP and pin 70 on
80-pin TQFP) must be connected to circuit ground via
a 1µF capacitor. This same pin on the dsPIC30F
devices is a VSS pin and hence must be tied to ground.
A jumper can be used to replace the capacitor to
connect to the Vss pin.
The Low-Voltage-Detect (LVD) feature on the
dsPIC30F devices is not available on the dsPIC33F
devices. Conversion can be simplified if the dsPIC30F
LVD feature is not implemented.
The dsPIC33F devices support a Brown-out Reset
(BOR) feature, but not an equivalent dsPIC30F BOR
with adjustable trip points.
TABLE 1:
Run, Sleep and Idle currents are not yet characterized.
Run and Idle currents will be reduced on the dsPIC33F
devices versus the dsPIC30F devices.
The dsPIC33F devices have a programmable PLL,
whereas the dsPIC30F PLL features x4, x8 or x16
modes.
The instruction set on the dsPIC33F and dsPIC30F
devices is 100% identical. In general, Assembly and C
language code developed for the dsPIC30F devices is
directly portable to dsPIC33F devices using the associated device header (.h), include (.inc) and linker (.gld)
support files. dsPIC33F devices support more interrupt
sources, therefore the interrupt vector table length has
increased. User code starts at 0x200 versus 0x100 on
the dsPIC30F devices. Using the associated device
linker (.gld) support file makes this change transparent.
Some peripherals have new features hence additional
bits have been added in respective SFRs. Some SFR
bits have moved or been renamed between the
dsPIC30F and dsPIC33F devices. If the Assembly and
C language code utilizes the provided device support
files, code migration is straight forward.
Table 1 presents a summary of the key differences
between the dsPIC30F to dsPIC33F devices. Please
refer to the specific device data sheets for further information.
KEY DIFFERENCES BETWEEN dsPIC30F AND dsPIC33F DEVICES
Channels
Peripheral Module
Comments
dsPIC30F
dsPIC33F
Interrupt Controller
45
67
SFR bits are located in different SFRs. There are more
interrupts and associated SFRs on the dsPIC33F
devices. Old SFR bit names are retained for compatibility.
Timers 16-bit
5
9
No SFR bit name changes. Four new timers on the
dsPIC33F devices.
Input Capture
5
8
No SFR bit name changes. Three new channels on the
dsPIC33F devices.
Output Compare
5
8
No SFR bit name changes. Three new channels on the
dsPIC33F devices.
10-bit 1 Msps ADC
16
0
New module on the dsPIC33F devices.
12-bit 200 Ksps ADC
16
0
New module on the dsPIC33F devices.
© 2006 Microchip Technology Inc.
DS70172A-page 1
dsPIC30F to dsPIC33F
TABLE 1:
KEY DIFFERENCES BETWEEN dsPIC30F AND dsPIC33F DEVICES (CONTINUED)
Channels
Peripheral Module
10- to 12-bit ADC
Comments
dsPIC30F
dsPIC33F
0
32
10-bit 1.1 Msps
ADxCON1 SFR: No bit name changes.
New modes/SFR bits added: 10/12 ADC mode bit.
12-bit 500 Ksps
Added SFR bits to support 32 ADC channels.
UART
2
2
UxMODE SFR: No bit name changes. New modes/
SFR bits added. UxSTA SFR: No bit name changes.
New mode/SFR bit added. Features added on
dsPIC33F devices: IrDA®, LIN support and Interrupton-TSR empty.
I2C™
1
2
No SFR bit name changes. New SFR (I2CxMSK) and
address masking feature added.
SPI
2
2
SPIxSTAT SFR: No bit name changes. SPIxCON1
SFR: No bit name changes. New bits added and some
relocated to new SFR SPIxCON2. FIFO and Frame
modes added.
DCI (CODEC)
1
1
No SFR bit name changes.
CAN
2
0
N/A
ECAN™ Technology
0
2
New module on dsPIC33F devices.
Motor Control PWM
8
8
No SFR bit name changes.
1
1
No SFR bit name changes.
Ports A-G
Ports A-G
QEI
I/O Ports
DMA
New feature added: Open Drain output on some ports.
0
8
Clock Switching
Yes
Yes
Additional clock modes/features on dsPIC33F devices.
Oscillator control SFRs are different.
Power Savings
Yes
Yes
New Doze mode added to existing Sleep and Idle
modes.
Device Configuration
—
—
Use new device support files (.h, .inc and .gld) for
support.
PLL modes
x4, x8 and
x16 PLL
Programmable See Section 8.1 of the dsPIC33F data sheet
PLL
(DS70165) for system clock selection information.
Programming Pins
1 pair
3 pairs
Debugging Pins
4 pairs
3 pairs
DS70172A-page 2
New feature on dsPIC33F devices.
There are now 3 PGC/EMUC and PGD/EMUD pairs of
pins, which can be used for both programming and
debugging.
© 2006 Microchip Technology Inc.
dsPIC30F to dsPIC33F
PERIPHERALS
The dsPIC33F peripheral set is enhanced versus the
first generation dsPIC30F product family. Several
peripherals have identical features with some
peripherals supporting additional features.
The DCI CODEC peripheral on the dsPIC33F devices
is identical to the DCI peripheral featured on the
dsPIC30F6011A/12A/13A/14A devices.
Note:
If using the DCI peripheral on the "non-A"
dsPIC30F devices, the work around called
out in the dsPIC30F6011/6012/6013/6014
Rev. B2 errata (DS80198C), specifically
item 12, is no longer required.
The ADC module on the dsPIC33F devices is slightly
different from the dsPIC30F ADC module. The basic
functionality is the same, however the dsPIC33F ADC
module is selectable between 10- and 12-bit operation,
supporting higher conversion rates and featuring more
external ADC pins.
TABLE 2:
The dsPIC33F devices have 8 channels of DMA, which
are assignable to the following peripherals: UART, SPI,
ADC, CODEC Interface, Input Capture, Output Compare/Standard PWM and ECAN™ technology.
Additional status bits for determination of specific Math
Exception Traps are available on the dsPIC33F
devices. These bits are located in the INTCON1 SFR.
dsPIC33F digital I/O ports are 5V tolerant. New open
drain features are provided on some ports. dsPIC33F
analog pins configured as digital I/O pins are 3.6V
tolerant. See the data sheet for further information.
FLASH PROGRAM MEMORY
Like the dsPIC30F devices, the dsPIC33F devices
support Run-Time-Self-Programming (RTSP) . Table 2
lists some small RTSP differences between the two
families.
RTSP DIFFERENCES BETWEEN dsPIC33F AND dsPIC30F FAMILIES
Parameter
dsPIC33F
dsPIC30F
Smallest PM Erase Size
1 Page - 512 instructions/1536 bytes
1 Row - 32 instructions/96 bytes
Smallest PM Program Size
1 Row - 64 instructions/192 bytes
1 Row - 32 instructions/96 bytes
Basic PM Erase Code
Sequence
; Setup NVMCON for page erase
operation
MOV #0x4042, w0
MOV w0, NVMCON
; Init pointer for Erase Op.
MOV #tblpage(PROG_ADDR), w0
MOV w0, TBLPAG
MOV #tbloffset(PROG_ADDR), w0
TBLWTL w0, [w0]
; Set base
address of erase block
; Disable interrupts, if enabled;
Write the KEY sequence
MOV #0x55, w0
MOV w0, NVMKEY
MOV #0xAA, w0
MOV w0, NVMKEY
; Start the erase operation
BSET NVMCON, #WR
; Insert two NOPs (required)
NOP
NOP
Re-enable interrupts, if needed
; Setup NVMCON for row erase
operation
MOV #0x4041, w0
MOV w0, NVMCON
; Init pointer for Erase Op.
MOV #tblpage(PROG_ADDR), w0
MOV w0, NVMADRU
MOV #tbloffset(PROG_ADDR), w0
MOV w0, NVMADR
; Disable interrupts, if enabled
; Write the KEY sequence
MOV #0x55, w0
MOV w0, NVMKEY
MOV #0xAA, w0
MOV w0, NVMKEY
; Start the erase operation
BSET NVMCON, #WR
; Insert two NOPs (required)
NOP
NOP
Re-enable interrupts, if needed
© 2006 Microchip Technology Inc.
DS70172A-page 3
dsPIC30F to dsPIC33F
TABLE 2:
RTSP DIFFERENCES BETWEEN dsPIC33F AND dsPIC30F FAMILIES (CONTINUED)
Parameter
Basic PM Program Code
Sequence
(Example loading 1 write
latch only)
dsPIC33F
; Setup the address pointer to
program space
MOV #tblpage(PROG_ADDR), w0
; get table page value
MOV w0, TBLPAG ; load TBLPAG
register
MOV #tbloffset(PROG_ADDR), w0
; load address LS word
; Load write data into W registers
MOV #PROG_LOW_WORD, w2
MOV #PROG_HI_BYTE, w3
; Perform the table writes to load
the latch
TBLWTL w2, [w0]
TBLWTH w3, [w0++]
dsPIC30F
; Setup the address pointer to
program space
MOV #tblpage(PROG_ADDR), w0
; get table page value
MOV w0, TBLPAG ; load TBLPAG
register
MOV #tbloffset(PROG_ADDR), w0
; load address LS word
; Load write data into W registers
MOV #PROG_LOW_WORD, w2
MOV #PROG_HI_BYTE, w3
; Perform the table writes to load
the latch
TBLWTL w2, [w0]
TBLWTH w3, [w0++]
SFR registers, NVMADR and NVMADRU, are not
available or utilized for programming/erasing operations on dsPIC33F Flash program memory and data
EEPROM is not supported. Likewise there is no vector
location for the NVM interrupt as there is on the
dsPIC30F devices. The interrupt vector location is
reserved.
The dsPIC33F Program Flash Erase/Write endurance
specifications differ between the dsPIC33F and
dsPIC30F families. Please refer to the device data
sheet for further information.
All program/erase operations of the dsPIC33F devices
are self-timed like the dsPIC30F devices, therefore no
additional timer is required to terminate a program/
erase operation.
ELECTRICAL CHARACTERISTICS
Operating from 3.0 to 3.6 VDC and rated at 40 MIPS @
85ºC, the dsPIC33F product family is designed using
0.25 µm process technology. Therefore, the DC and AC
Electrical Specifications are different from the
dsPIC30F product family. Please refer to the dsPIC33F
data sheet (DS70165) for further information.
DS70172A-page 4
© 2006 Microchip Technology Inc.
dsPIC30F to dsPIC33F
PACKAGE CONVERSION
CONSIDERATIONS
Check the mechanical/package footprint of a 64-pin
TQFP dsPIC30F and a 64-pin TQFP dsPIC33F. Layout
PCB to accommodate common 10x10x1 mm package.
Table 3 presents a summary of the programming/
debugging pin differences between the dsPIC30F "A"
devices and the dsPIC33F devices.
Check the mechanical/package footprint of the 80-pin
TQFP dsPIC30F and 80-pin TQFP dsPIC33F. Layout
PCB to accommodate a common 12x12x1 mm package.
TABLE 3:
PROGRAMMING/DEBUGGING PIN DIFFERENCES
dsPIC30F
dsPIC33F
dsPIC30F
dsPIC33F
64-pin
64-pin
80-pin
80-pin
PGC/EMUC + PGD/EMUD
RB6 + RB7
—
RB1 + RB0
—
EMUC1/EMUD1
RC14 + RC13
—
RC14 + RC13
—
EMUC2/EMUD2
RD0 + RD1
—
RD0 + RD1
—
EMUC3/EMUD3
RF6 + RF3
—
RF6 + RF8
—
PGC1/EMUC1 + PGD1/EMUD1
—
RB6 + RB7
—
RB6 + RB7
PGC2/EMUC2 + PGD2/EMUD2
—
RC14 + RC13
—
RC14 + RC13
PGC3/EMUC3 + PGD3/EMUD3
—
RB1 + RB0
—
RB1 + RB0
Programming/Debugging Pins
Legend: PGC - Primary Programming Clock Pin;
PGD - Primary Programming Data Pin
EMUCx - Debugging Clock Pin (where x = 1, 2 or 3)
EMUDx - Debugging Data Pin (where x = 1, 2 or 3)
PROGRAMMING SUPPORT
No high voltage is required or provided by the MPLAB®
ICD 2 or MPLAB PM 3 tools when programming the
dsPIC33F devices. The ~12.5 VDC currently supplied
by MPLAB ICD 2 or MPLAB PM 3, when programming
the dsPIC30F devices, is not required for the dsPIC33F
devices.
Note:
TABLE 4:
DEVELOPMENT TOOLS AND
BOARDS
MPLAB IDE, MPLAB C30, MPLAB ICD 2 and MPLAB
PM3 tools support the dsPIC33F product family of
devices. See Table 4 below for information on tool
version support.
Possible damage to the MCLR pin will be
sustained if more than 5.5 VDC is applied.
DEVELOPMENT TOOL SUPPORT FOR THE dsPIC33F FAMILY
Development Tools
dsPIC33F
MPLAB® IDE
MPLAB IDE 7.22 or later
MPLAB C30
MPLAB C30 1.33.01 or later with specific language support files
MPLAB ICD 2 Programmer/Debugger
Yes
MPLAB PM3 Device Programmer
Yes
MPLAB ICE 4000
No
The dsPICDEM™ 80-pin Starter Development Board
(DM300019) and the Explorer 16 Development Board
(DM240001) support the dsPIC33F silicon.
dsPIC33FJ256GP710I/PF based 100-pin Plug-inModules (PIMS), part number MA330011, are used to
support the Explorer 16 Development Board.
dsPIC33FJ256GP710I/PF based 100-to-80-pin Plugin-Modules (PIMS), part number MA330012, are used
to support the dsPICDEM 80-pin Starter Development
Board.
© 2006 Microchip Technology Inc.
DS70172A-page 5
dsPIC30F to dsPIC33F
APPLICATION LIBRARIES
APPENDIX A:
All advanced application libraries developed for the
dsPIC30F product family support the dsPIC33F
product family. Several libraries have been tested and
released. Others are scheduled for testing and release.
Revision A (01/2006)
DS70172A-page 6
REVISION HISTORY
Original version of the document.
© 2006 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED,
WRITTEN OR ORAL, STATUTORY OR OTHERWISE,
RELATED TO THE INFORMATION, INCLUDING BUT NOT
LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE,
MERCHANTABILITY OR FITNESS FOR PURPOSE.
Microchip disclaims all liability arising from this information and
its use. Use of Microchip’s products as critical components in
life support systems is not authorized except with express
written approval by Microchip. No licenses are conveyed,
implicitly or otherwise, under any Microchip intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART,
PRO MATE, PowerSmart, rfPIC, and SmartShunt are
registered trademarks of Microchip Technology Incorporated
in the U.S.A. and other countries.
AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB,
PICMASTER, SEEVAL, SmartSensor and The Embedded
Control Solutions Company are registered trademarks of
Microchip Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, dsPICDEM,
dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR,
FanSense, FlexROM, fuzzyLAB, In-Circuit Serial
Programming, ICSP, ICEPIC, Linear Active Thermistor,
MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM,
PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo,
PowerMate, PowerTool, Real ICE, rfLAB, rfPICDEM, Select
Mode, Smart Serial, SmartTel, Total Endurance, UNI/O,
WiperLock and Zena are trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2006, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 quality system certification for
its worldwide headquarters, design and wafer fabrication facilities in
Chandler and Tempe, Arizona and Mountain View, California in
October 2003. The Company’s quality system processes and
procedures are for its PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
© 2006 Microchip Technology Inc.
DS70172A-page 7
WORLDWIDE SALES AND SERVICE
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://support.microchip.com
Web Address:
www.microchip.com
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
India - Bangalore
Tel: 91-80-2229-0061
Fax: 91-80-2229-0062
China - Beijing
Tel: 86-10-8528-2100
Fax: 86-10-8528-2104
India - New Delhi
Tel: 91-11-5160-8631
Fax: 91-11-5160-8632
Austria - Wels
Tel: 43-7242-2244-399
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
China - Chengdu
Tel: 86-28-8676-6200
Fax: 86-28-8676-6599
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
China - Fuzhou
Tel: 86-591-8750-3506
Fax: 86-591-8750-3521
Japan - Yokohama
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Korea - Gumi
Tel: 82-54-473-4301
Fax: 82-54-473-4302
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
Atlanta
Alpharetta, GA
Tel: 770-640-0034
Fax: 770-640-0307
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
Kokomo
Kokomo, IN
Tel: 765-864-8360
Fax: 765-864-8387
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
San Jose
Mountain View, CA
Tel: 650-215-1444
Fax: 650-961-0286
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
China - Shunde
Tel: 86-757-2839-5507
Fax: 86-757-2839-5571
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
China - Xian
Tel: 86-29-8833-7250
Fax: 86-29-8833-7256
Malaysia - Penang
Tel: 60-4-646-8870
Fax: 60-4-646-5086
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Taiwan - Hsin Chu
Tel: 886-3-572-9526
Fax: 886-3-572-6459
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-536-4803
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
10/31/05
DS70172A-page 8
© 2006 Microchip Technology Inc.
Similar pages