參數(shù)資料
型號(hào): DRM059
英文描述: Cluster for Motorbikes Using the MC68HC908LJ12 and MC33970
中文描述: 在摩托車組使用MC68HC908LJ12和MC33970
文件頁(yè)數(shù): 22/48頁(yè)
文件大?。?/td> 1131K
代理商: DRM059
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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