参数资料
型号: DSPIC30F4013-20I/PT
厂商: Microchip Technology
文件页数: 94/153页
文件大小: 0K
描述: IC DSPIC MCU/DSP 48K 44TQFP
产品培训模块: Serial Communications using dsPIC30F CAN
Serial Communications using dsPIC30F I2C
Serial Communications using dsPIC30F SPI
Serial Communications using dsPIC30F UART
dsPIC30F 12 bit ADC - Part 2
dsPIC30F Addressing Modes - Part 1
dsPIC30F Architecture - Part 1
dsPIC30F DSP Engine & ALU
dsPIC30F Interrupts
dsPIC30F Motor Control PWM
dsPIC Timers
Asynchronous Stimulus
dsPIC30F Addressing Modes - Part 2
dsPIC30F Architecture - Part 2
dsPIC30F 12-bit ADC Part 1
标准包装: 160
系列: dsPIC™ 30F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 20 MIPS
连通性: CAN,I²C,SPI,UART/USART
外围设备: AC'97,欠压检测/复位,I²S,POR,PWM,WDT
输入/输出数: 30
程序存储器容量: 48KB(16K x 24)
程序存储器类型: 闪存
EEPROM 大小: 1K x 8
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 2.5 V ~ 5.5 V
数据转换器: A/D 13x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 44-TQFP
包装: 托盘
配用: XLT44PT3-ND - SOCKET TRAN ICE 44MQFP/TQFP
AC164305-ND - MODULE SKT FOR PM3 44TQFP
其它名称: DSPIC30F401320IPT
2010 Microchip Technology Inc.
DS70138G-page 45
dsPIC30F3014/4013
5.6
Programming Operations
A complete programming sequence is necessary for
programming or erasing the internal Flash in RTSP
mode. A programming operation is nominally 2 msec in
duration and the processor stalls (waits) until the oper-
ation is finished. Setting the WR bit (NVMCON<15>)
starts the operation and the WR bit is automatically
cleared when the operation is finished.
5.6.1
PROGRAMMING ALGORITHM FOR
PROGRAM FLASH
The user can erase or program one row of program
Flash memory at a time. The general process is:
1.
Read one row of program Flash (32 instruction
words) and store into data RAM as a data
“image”.
2.
Update the data image with the desired new
data.
3.
Erase program Flash row.
a)
Set up NVMCON register for multi-word,
program Flash, erase, and set WREN bit.
b)
Write address of row to be erased into
NVMADRU/NVMDR.
c)
Write 0x55 to NVMKEY.
d)
Write 0xAA to NVMKEY.
e)
Set the WR bit. This begins erase cycle.
f)
CPU stalls for the duration of the erase cycle.
g)
The WR bit is cleared when erase cycle
ends.
4.
Write 32 instruction words of data from data
RAM “image” into the program Flash write
latches.
5.
Program 32 instruction words into program
Flash.
a)
Set up NVMCON register for multi-word,
program Flash, program, and set WREN
bit.
b)
Write 0x55 to NVMKEY.
c)
Write 0xAA to NVMKEY.
d)
Set the WR bit. This begins program cycle.
e)
CPU stalls for duration of the program cycle.
f)
The WR bit is cleared by the hardware
when program cycle ends.
6.
Repeat steps 1 through 5 as needed to program
desired amount of program Flash memory.
5.6.2
ERASING A ROW OF PROGRAM
MEMORY
Example 5-1 shows a code sequence that can be used
to erase a row (32 instructions) of program memory.
EXAMPLE 5-1:
ERASING A ROW OF PROGRAM MEMORY
; Setup NVMCON for erase operation, multi word write
; program memory selected, and writes enabled
MOV
#0x4041,W0
;
MOV
W0,NVMCON
; Init NVMCON SFR
; Init pointer to row to be ERASED
MOV
#tblpage(PROG_ADDR),W0
;
MOV
W0,NVMADRU
; Initialize PM Page Boundary SFR
MOV
#tbloffset(PROG_ADDR),W0
; Intialize in-page EA[15:0] pointer
MOV
W0, NVMADR
; Initialize NVMADR SFR
DISI
#5
; Block all interrupts with priority <7 for
; next 5 instructions
MOV
#0x55,W0
MOV
W0,NVMKEY
; Write the 0x55 key
MOV
#0xAA,W1
;
MOV
W1,NVMKEY
; Write the 0xAA key
BSET
NVMCON,#WR
; Start the erase sequence
NOP
; Insert two NOPs after the erase
NOP
; command is asserted
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