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mxchipWNet基础版软件库开发指南(AD0005_mxchipWNet_Library).pdf
mxchipWNet Library
Development guide for the basic version
上海庆科信息技术有限公司
Agenda
• Introduction for the mxchipWNetTM library basic version
• Allocation of the hardware resources
• Development tools and environment
• Guide of the API functions
• Demo applications
上海庆科信息技术有限公司
mxchipWNet Authorized Platform
EMW3280
EMW3161
EMW3162
More in future…
mxchipWNet library can only run on a mxchipWNet authorized platform.
上海庆科信息技术有限公司
mxchipWNet Architecture
MXCHIP Wi-Fi module
802.11MAC/Baseband/RF
User application
mxchipWNet library
TCP/IP stack
Network services
IEEE 802.11 driver
Network Processor
上海庆科信息技术有限公司
mxchipWNet Functions
• Wi-Fi Features:
•
•
• WEP, WPA/WPA2 encryption
• WPS, Easylink configuration
•
IEEE 802.11 b/g/n driver
Station mode, soft AP mode and coexistent
IEEE 802.11 roaming, power save mode
• TCP/IP stack Features:
•
TCP client/server, UDP unicast/multicast/broadcast
•
Block/Unblock mode
• DHCP server/client
• DNS, mDNS
•
•
TLS/SSL data encryption
Flexible memory allocation
• Miscellaneous:
•
•
• MD5, AES, SHA algorithm
• Demo applications
• ……
A build-in RTOS (profession version only)
System timer
上海庆科信息技术有限公司
mxchipWNet Application Running Mode
Basic version
Professional version (RTOS)
Main
mxchipInit
Callback 1
Callback 2
Main
RTOS thread management
Application n
mxchipTick
Select
sleep
……
Application 2
Application 1
Callback n
mxchipTick
Create
Main
application
Create
Application n
Callback 1
Callback 2
Callback n
! The main loop should less than 500ms
Do not execute any library function in a callback
上海庆科信息技术有限公司
mxchipWNet Flash Memory Map
256k bytes
RF Driver(D)*
Contents should not be changed
OTA function can be disabled in bootloader
0x080C0000
0x08060000
0x0800C000
0x08004000
0x08000000
384k bytes
Temporary storage for
OTA purpose
336k bytes
mxchipWNetTM
Firmware(A)*
32k bytes
APP Parameters(P)*
16k bytes
bootloader(B)*
* Content Type
上海庆科信息技术有限公司
Start
End
Type Size (bytes)
Content
0x08000000
0x08003FFF
0x08004000
0x0800BFFF
0x0800C000
0x08060000
B
P
A
16k
32k
336k
Bootloader
OTA info，user参数
User application
0x08060000
0x080C0000 － 384k
OTA storage
0x080C0000
0x080FFFFF
D
256k
RF Driver
OTA Procedure
OTA steps
1. Download update data to OTA storage (User)
2. Write OTA info to 0x08004000 (User)
3. Reboot (User)
4. Bootloader update the target flash memory
using update data (Bootloader)
5. Bootloader clear the update data and OTA
info (Bootloader)
6. Start the application (Bootloader)
OTA info @ 0x08004000
Name
Data Type Data
Length Content
START
ADDRESS
LENGTH
VERSION
TYPE
UPDATE
Word
Word
Byte
Byte
Byte
REVERSED
Byte
1
1
8
1
1
6
OTA data storage address (should
be 0x08060000 only now)
OTA data length
Version（Not used）
Target content type (’B’,’P’,’A’,’D’)
Update tag(‘U’)
Reserved
Target content type: Which data block should be updated by the new data in OTA data storage
上海庆科信息技术有限公司
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