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PIC24F16KA102 데이터시트(PDF) 23 Page - Microchip Technology

부품명 PIC24F16KA102
상세설명  Flash Programming Specifications
PDF  48 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC24F16KA102 데이터시트(HTML) 23 Page - Microchip Technology

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PIC24FXXKAXXX
© 2008 Microchip Technology Inc.
Advance Information
DS39919A-page 23
4.0
DEVICE PROGRAMMING –
ENHANCED ICSP
This section describes the programming of the device
through
Enhanced
ICSP
and
the
programming
executive. The programming executive resides in the
executive memory (separate from user memory
space), and is executed when Enhanced ICSP
Programming mode is entered. The programming
executive provides the mechanism for the programmer
(host
device)
to
program
and
verify
the
PIC24FXXKAXXX devices using a simple command
set and communication protocol. The basic functions
provided by the programming executive are:
• Read Memory
• Program Memory
• Blank Check
• Read Executive Firmware Revision
The programming executive performs the low-level
tasks required for erasing, programming and verifying
a device. This allows the programmer to program the
device by issuing the appropriate commands and data.
Table 4-1 provides these commands. For detailed
descriptions of each command, see Section 5.2
“Programming Executive Commands”.
TABLE 4-1:
COMMAND SET SUMMARY
The programming executive uses the device’s data
RAM for variable storage and program execution. After
the programming executive is run, no assumptions
should be made about the contents of the data RAM.
4.1
Overview of the Programming
Process
Figure 4-1 illustrates the high-level overview of the
programming process.
Perform the following steps:
1.
Enter ICSP mode.
2.
Erase the device.
3.
Verify the programming executive.
4.
Exit ICSP mode.
5.
Enter Enhanced ICSP mode.
6.
Program the code memory.
7.
Verify the code memory.
8.
Program the Configuration registers.
9.
Verify the Configuration registers.
Steps 7 and 9 ensure that the programming was
successful.
After the programming executive is verified in memory
(or loaded if not present), the PIC24FXXKAXXX family
can be programmed using the command set provided
in Table 4-1.
FIGURE 4-1:
HIGH-LEVEL ENHANCED
ICSP™ PROGRAMMING FLOW
Command
Description
SCHECK
Sanity check.
READC
Read Device ID registers.
READD
Read data EEPROM memory.
READP
Read Code register.
PROGC
Write User ID.
PROGD
Program and verify one word of data
EEPROM memory.
PROGP
Program and verify one row of code
memory or one Configuration register.
QBLANK
Query if the code memory is blank.
QVER
Query the software version.
Start
End
Perform Chip
Erase
Program and Verify
Enter ICSP™ Mode
Program and Verify
Exit Enhanced ICSP Mode
Program and Verify
Code Memory
Data EEPROM Memory
Configuration Bits
Enter Enhanced ICSP Mode
Exit ICSP Mode



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