參數(shù)資料
型號: DRM055
英文描述: High Data Rate Wireless USB Optical Mouse Solution Using the MC68HC908QY4 and MC68HC908JB12
中文描述: 高數(shù)據(jù)速率的無線USB光學(xué)鼠標(biāo)解決方案使用MC68HC908QY4和MC68HC908JB12
文件頁數(shù): 31/48頁
文件大?。?/td> 1131K
代理商: DRM055
DRM050 — Rev 0
Designer Reference Manual
MOTOROLA
Keyboard Transmitter Firmware
For More Information On This Product,
Go to: www.freescale.com
31
Designer Reference Manual —
DRM050
Section 6. Keyboard Transmitter Firmware
6.1 Firmware Structure
The firmware structure consists of two main parts:
MAC Layer protocol
Main Application routine
The MAC layer also implements the RFWaves CSMA protocol. Please
refer to the section
4.1 MAC Layer Protocol
for a description of this
layer.
Figure 6-1
shows the flow of the main program. The main tasks are to
detect any key being pressed or released and then send the key code
by RF signal through the control of baseband RFW-D100 IC.
If no key is pressed within 10 seconds, LK24 will put the baseband IC
into power down mode, LK24 will also enter lower power mode. The
MCU will be woken up when any key is pressed.
F
Freescale Semiconductor, Inc.
n
.
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