參數(shù)資料
型號: DRM050
英文描述: DRM050
中文描述: DRM050
文件頁數(shù): 22/48頁
文件大?。?/td> 1131K
代理商: DRM050
Mouse Transmitter Firmware
Designer Reference Manual
DRM050 — Rev 0
22
Mouse Transmitter Firmware
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
4.2 Application Firmware Flow
Figure 4-1
shows the main application firmware flow of the wireless
optical mouse. One of the main challenges in wireless optical mouse
design is the power management to minimize the power consumption
and maximize the performance.
Figure 4-1. Firmware Structure
MAIN PROGRAM
INIT MAC TO
TRANSMIT DATA
POWER MANAGEMENT
INITIATE SENSOR,
AND RF HARDWARE
GET XY DISPLACEMENT
FROM SENSOR
GET Z DISPLACEMENT
FOR EVERY MS
CHECK BUTTON
FOR EVERY MS
NEW
MOUSE DATA
Y
N
IRQ ISR
NO
I
RQ DRIVEN BY
PERIODICAL
WAKEUP SIGNAL
YES
SERVE THE INTERRUPT
EVENT FROM
RFW-D100 BASEBAND CHIP
DISABLE THE PERIODICAL
WAKEUP FOR MCU TO CHECK
MOVEMENT AND BUTTONS
F
Freescale Semiconductor, Inc.
n
.
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