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參數(shù)資料
| 型號： | AT42QT1111-AU |
| 廠商： | ATMEL CORP |
| 元件分類： | 速度傳感器和接近開關 |
| 英文描述： | PROXIMITY SENSOR-CAPACITIVE, 0-5V, SQUARE, SURFACE MOUNT |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, MS-026ABA, TQFP-32 |
| 文件頁數(shù)： | 5/50頁 |
| 文件大?。?/td> | 637K |
| 代理商： | AT42QT1111-AU |
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13
9571B–AT42–08/10
AT42QT1111-MU/AT42QT1111-AU
For example, Figure 4-3 on page 12 shows the exchange that takes place to read the 2-byte “All
Keys” report. In this exchange, the host sends:
0xC1 — 0x00 — 0x00
and the QT1111 returns (simultaneously):
0x55 — Report Byte 0 — Report Byte 1
If CRC is enabled, this exchange is extended to 5 bytes, as shown in Figure 4-4.
Figure 4-4.
All Keys Report – CRC Enabled
4.1.5.1
Set Instructions
Set Instructions are 2-byte transmissions by the host that are used to send settings to individual
locations in the device memory map.
At the first byte, the QT1111 returns 0x55 (“Idle”) to confirm that it will interpret the byte as a new
command. At the second byte, the QT1111 returns the “Set” command it has just received.
For example, to set the “Positive Recalibration Delay” to 1920 ms, address 5 in the memory map
is set to 12 (0x0C). This is done with the “Set” command for address 5 (command code 0x95),
as shown in Figure 4-5 on page 14.
Host (Sends on MOSI)
Command: 0xC1
Null: 0x00
Key Status Report Byte 0
Null: 0x00
Key Status Report Byte 1
Null: 0x00
Report CRC: 0x??
Simultaneous
Transmission
Command CRC: 0x94
Response: 0x94 (Expected Command CRC)
Response: 0x55 ( Idle”
Fresh Command)
“
–
Device (Responds on MISO)
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相關代理商/技術參數(shù) |
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| AT42QT1111-AU QS383 | 制造商:Atmel Corporation 功能描述:QTOUCH 11 KEY TOUCH SENSOR IC |
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| AT42QT1244-AU | 功能描述:電容觸摸傳感器 QMatrix FMEA 24 Key Sensor IC RoHS:否 制造商:Microchip Technology 電源電壓: 通道數(shù)量: 封裝 / 箱體: 尺寸: 溫度范圍: |
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