DSPIC33FJ64GS406 datasheet(437/456 Pages) MICROCHIP

437 / 456 page

 2009-2012 Microchip Technology Inc.

DS70591E-page 437

dsPIC33FJ32GS406/606/608/610 and dsPIC33FJ64GS406/606/608/610

APPENDIX A: MIGRATING FROM dsPIC33FJ06GS101/X02 AND

dsPIC33FJ16GSX02/X04 TO dsPIC33FJ32GS406/606/608/610 AND

dsPIC33FJ64GS406/606/608/610 DEVICES

This appendix provides an overview of considerations

for migrating from the dsPIC33FJ06GS101/X02 and

dsPIC33FJ16GSX02/X04 family of devices to the

dsPIC33FJ32GS406/606/608/610

and

dsPIC33FJ64GS406/606/608/610 family of devices.

The code developed for the dsPIC33FJ06GS101/X02

and dsPIC33FJ16GSX02/X04 devices can be ported

the

dsPIC33FJ32GS406/606/608/610

and

dsPIC33FJ64GS406/606/608/610

devices

after

making the appropriate changes outlined below.

A.1

Device Pins and Peripheral Pin

Select (PPS)

dsPIC33FJ06GS101/X02

and

dsPIC33FJ16GSX02/X04 devices, some peripherals

such as the Timer, Input Capture, Output Compare,

UART, SPI, External Interrupts, Analog Comparator

Output, as well as the PWM4 pin pair, were mapped to

physical pins via Peripheral Pin Select (PPS)

functionality. On dsPIC33FJ32GS406/606/608/610

and dsPIC33FJ64GS406/606/608/610 devices, these

peripherals are hard-coded to dedicated pins. Because

of this, as well as pinout differences between the two

devices families, software must be updated to utilize

peripherals on the desired pin locations.

A.2

High-Speed PWM

A.2.1

FAULT AND CURRENT-LIMIT

CONTROL SIGNAL SOURCE

SELECTION

Fault and Current-Limit Control Signal Source selec-

tion has changed between the two families of devices.

dsPIC33FJ06GS101/X02

and

dsPIC33FJ16GSX02/X04 devices, Fault1 through

Fault8 were assigned to Fault and Current-Limit

Controls with the following values:

• 00000 = Fault 1

• 00001 = Fault 2

• 00010 = Fault 3

• 00011 = Fault 4

• 00100 = Fault 5

• 00101 = Fault 6

• 00110 = Fault 7

• 00111 = Fault 8

dsPIC33FJ32GS406/606/608/610

and

dsPIC33FJ64GS406/606/608/610

devices,

Fault1

through Fault8 were assigned to Fault and Current-

Limit Controls with the following values:

• 01000 = Fault 1

• 01001 = Fault 2

• 01010 = Fault 3

• 01011 = Fault 4

• 01100 = Fault 5

• 01101 = Fault 6

• 01110 = Fault 7

• 01111 = Fault 8

A.2.2

ANALOG COMPARATORS

CONNECTION

Connection of analog comparators to the PWM Fault

and

Current-Limit

Control

Signal

Sources

dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/

X04 devices is performed by assigning a comparator to

one of the Fault sources via the virtual PPS pins, and

then selecting the desired Fault as the source for Fault

and Current-Limit Control. On dsPIC33FJ32GS406/

606/608/610 and dsPIC33FJ64GS406/606/608/610

devices, analog comparators have a direct connection

to Fault and Current-Limit Control, and can be selected

with the following values for the CLSRC or FLTSRC

bits:

• 00000 = Analog Comparator 1

• 00001 = Analog Comparator 2

• 00010 = Analog Comparator 3

• 00011 = Analog Comparator 4

A.2.3

LEADING-EDGE BLANKING (LEB)

The Leading-Edge Blanking Delay (LEB) bits have

been

moved

from

the

LEBCOx

dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/

X04

devices

the

LEBDLYx

dsPIC33FJ32GS406/606/608/610

and

dsPIC33FJ64GS406/606/608/610 devices.

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