DSPIC30F1010-30I/SP【PDF 32/66 页】IC DSPIC MCU/DSP 6K 28DIP

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dsPIC30F Flash Programming Specification

DS70102K-page 38

2010 Microchip Technology Inc.

Table 11-4 shows the ICSP programming process for

bulk-erasing program memory. This process includes

the ICSP command code, which must be transmitted

(for each instruction) to the Least Significant bit first

using the PGC and PGD pins (see Figure 11-2).

If an individual Segment Erase operation is required,

the NVMCON value must be replaced by the value for

Note:

Program memory must be erased before

writing any data to program memory.

the corresponding Segment Erase operation.

TABLE 11-4:

SERIAL INSTRUCTION EXECUTION FOR BULK ERASING PROGRAM MEMORY

(ONLY IN NORMAL-VOLTAGE SYSTEMS)

Command

(Binary)

Data

(Hexadecimal)

Description

Step 1: Exit the Reset vector.

0000

040100

000000

GOTO 0x100

NOP

Step 2: Set NVMCON to program the FBS Configuration register.(1)

0000

24008A

883B0A

MOV

#0x4008, W10

MOV

W10, NVMCON

Step 3: Initialize the TBLPAG and write pointer (W7) for TBLWT instruction for Configuration register.(1)

0000

200F80

880190

200067

MOV

#0xF8, W0

MOV

W0, TBLPAG

MOV

#0x6, W7

Step 4: Load the Configuration Register data to W6.(1)

0000

EB0300

000000

CLR

NOP

Step 5: Load the Configuration Register write latch. Advance W7 to point to next Configuration register.(1)

0000

BB1B86

TBLWTL W6, [W7++]

Step 6: Unlock the NVMCON for programming the Configuration register.(1)

0000

200558

200AA9

883B38

883B39

MOV

#0x55, W8

MOV

#0xAA, W9

MOV

W8, NVMKEY

MOV

W9, NVMKEY

Step 7: Initiate the programming cycle.(1)

0000

—

0000

A8E761

000000

—

000000

A9E761

000000

BSET NVMCON, #WR

NOP

Externally time 2 ms

NOP

BCLR NVMCON, #WR

NOP

Step 8: Repeat steps 5-7 one time to program 0x0000 to RESERVED2 Configuration register.(1)

Step 9: Set the NVMCON to erase all Program Memory.

00000

0000

2407FA

883B0A

MOV

#0x407F, W10

MOV

W10, NVMCON

Step 10: Unlock the NVMCON for programming.

Note 1: Steps 2-8 are only required for the dsPIC30F5011/5013 devices. These steps may be skipped for all other

devices in the dsPIC30F family.

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