Rainbow-electronics AT42QT1040 Manual de usuario descargar pdf (Pagina 11)

9524A–AT42–03/09

AT42QT1040

Bit 7: This bit is set during calibration

Bits 4 – 6: Contains the number of keys active

Bits 0 – 3: Show the touch status of the corresponding keys

Figure 4-2 to Figure 4-5 show the usefulness of the debug data out feature. Channels can be

monitored and tweaked to the specific application with great accuracy.

Figure 4-2. Byte Clocked Out (~5 µs Period)

18 Delta 0 Low Byte

Signed 16-bit integer

19 Delta 0 High Byte

20 Delta 1 Low Byte

Signed 16-bit integer

21 Delta 1 High Byte

22 Delta 2 Low Byte

Signed 16-bit integer

23 Delta 2 High Byte

24 Delta 3 Low Byte

Signed 16-bit integer

25 Delta 3 High Byte

26 Flags

Various operational flags

Unsigned bytes

27 Flags2

28 Status Byte Unsigned byte. See Table 4-4

29 Frame Number

Repeat of framing index number in

byte 0

Table 4-4. Status Byte (Byte 28)

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

CAL Number of Keys (2-4) Key 3 Key 2 Key 1 Key 0

Table 4-3. Serial Data Output (Continued)

Byte Purpose Notes

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 17 18

Sin comentarios

Rainbow-electronics AT42QT1040 Manual de usuario Pagina 11