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參數(shù)資料
| 型號(hào)： | ADNK-3080 |
| 廠商： | Avago Technologies Ltd. |
| 英文描述： | High-Performance Optical Mouse Sensor |
| 中文描述： | 高性能光學(xué)鼠標(biāo)傳感器 |
| 文件頁數(shù)： | 19/39頁 |
| 文件大小： | 655K |
| 代理商： | ADNK-3080 |
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19
SROM Download
This function is used to load the Avago Technologies-
supplied firmware file contents into the ADNS-3080. The
firmware file is an ASCII text file with each 2-character
byte (hexadecimal representation) on a single line.
This mode is activated by the following steps:
1. Perform hardware reset by toggling the RESET pin
2. Write 0x44 to register 0x20
3. Write 0x07 to register 0x23
4. Write 0x88 to register 0x24
5. Wait at least 1 frame period
6. Write 0x18 to register 0x14 (SROM_Enable register)
7. Begin burst mode write of data file to register 0x60
(SROM_Load register)
After the first data byte is complete, the SROM or micro-
controller must write subsequent bytes by presenting
the data on the MOSI line and driving SCLK at the normal
rate. A delay of at least t
LOAD
must exist between data
Figure 23. SROM download burst mode
bytes as shown. After the download is complete, the
micro-controller must raise the NCS line for at least t
BEXIT
to terminate burst mode. The serial port is not available
for use until it is reset with NCS, even for a second burst
transmission.
Avago Technologies recommends reading the SROM_ID
register to verify that the download was successful. In
addition, a self-test may be executed, which performs a
CRC on the SROM contents and reports the results in a
register. The test is initiated by writing a particular value
to the SROM_Enable register; the result is placed in the
Data_Out register. See those register descriptions for
more details.
Avago Technologies provides the data file for download;
the file size is 1986 data bytes. The chip will ignore any
additional bytes written to the SROM_Load register after
the SROM file.
SROM file is now available for download at Avago Tech-
nologies’ website.
NCS
address key data
address
byte 0
MOSI
SCLK
t
NCS-SCLK
>120ns
SROM_Enable reg write
SROM_Load reg write
exit burst mode
t
BEXIT
enter burst
mode
≥
4
μ
s
t
LOAD
≥
10
μ
s
t
LOAD
≥
10
μ
s
byte 1
byte 1985
address
soonest to read SROM_ID
3 reg writes, see text
≥
1 frame
period
≥
40
μ
s
≥
10
μ
s
≥
100
μ
s
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADNS-3080 | High-Performance Optical Mouse Sensor |
| ADNS-3150-001 | Optical Mouse Designer’s Kit |
| ADNS-5020-EN | Optical Mouse Sensor |
| ADNS-5030 | Low Power Optical Mouse Sensor |
| ADNS-5100 | Solid-State Optical Mouse Lens |
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