DSPIC30F2010T-20I/SO【PDF 45/66 页】IC DSPIC MCU/DSP 12K 28SOIC

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2010 Microchip Technology Inc.

DS70102K-page 5

dsPIC30F Flash Programming Specification

5.0

DEVICE PROGRAMMING

5.1

Overview of the Programming

Process

Once the programming executive has been verified

in memory (or loaded if not present), the dsPIC30F can

be programmed using the command set shown in

Table 5-1. A detailed description for each command is

provided in Section 8.0 “Programming Executive

Commands”.

TABLE 5-1:

COMMAND SET SUMMARY

Command

Description

SCHECK

Sanity check

READD

Read data EEPROM, Configuration

registers and device ID

READP

Read code memory

PROGD

Program one row of data EEPROM

and verify

PROGP

Program one row of code memory and

verify

PROGC

Program Configuration bits and verify

ERASEB

Bulk Erase, or erase by segment

ERASED

Erase data EEPROM

ERASEP

Erase code memory

QBLANK

Query if the code memory and data

EEPROM are blank

QVER

Query the software version

A high-level overview of the programming process is

illustrated in Figure 5-1. The process begins by enter-

ing Enhanced ICSP mode. The chip is then bulk

erased, which clears all memory to ‘1’ and allows the

device to be programmed. The Chip Erase is verified

before programming begins. Next, the code memory,

data Flash and Configuration bits are programmed. As

these memories are programmed, they are each

verified to ensure that programming was successful. If

no errors are detected, the programming is complete

and Enhanced ICSP mode is exited. If any of the

verifications fail, the procedure should be repeated,

starting from the Chip Erase.

If Advanced Security features are enabled, then

individual Segment Erase operations need to be

performed, based on user selections (i.e., based on the

specific needs of the user application). The specific

operations that are used typically depend on the order

in which various segments need to be programmed for

a given application or system.

Section 5.2 “Entering Enhanced ICSP Mode”

through Section 5.8 “Exiting Enhanced ICSP Mode”

describe the programming process in detail.

FIGURE 5-1:

PROGRAMMING FLOW

Start

Program and

Program and verify

Configuration bits

Finish

verify code

verify data

Enter Enhanced

Exit Enhanced ICSP

Mode

Perform Chip

Erase

Program

Configuration

registers to

ICSP mode

default value

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