SNS2=PORTC
X
X
X
PORT PAIR 2
Ch5
X
Ch4
X
X
Ch3
SNSK2=PORTD
1. The channel numbers are allocated based on enabled SNS pins starting from LSBit of
port 1(SNS1) and ending with MSBit of port 2(SNS2).
2. The number of SNS pins in a port pair should be equal to the SNSK pins in the same port
pair so it can form a pair.
3. The first SNS port pin should always be mapped to the first SNSK port pin in any port
pair. Similarly the second SNS port pin should always be mapped to second SNSK pin
and so on.
4. Even sensors with in a port pair should be placed in one mask and odd sensors with-in a
port pair should be placed in the second mask. In case of interport, first channel should
always start with odd masks and then even masks is filled .
5. All the three channels for ROTORS and SLIDERS should be placed within the same
mask. And should be in the same port pair.
6. Keys on adjacent channels should be placed on different masks.
7. For 8 channel case when 2 ports are enabled, the pins for the 8 channels can be spread
on the 2 ports. The pin configuration is done based on the rules mentioned above.
8. For 16 channel case when 2 ports are enabled, all the pins for the 16 channels are
allocated among the pins of the 2 ports.
5.8.1.1.1
Example for 8 channel interport mask Calculation with one port pair
X
SNS1=PORTA
Ch2
X
X
Ch1
X
Ch0
X
X
SNSK1=PORTB
This example is for interport 8 channel library with only one port pair used.
Channel0 is A0B2,Channel1 is A3B5 and Channel2 is A6B7 are enabled for the 8
channel library.
The SNS_array and SNSK_array masks are calculated by the Qtouch Studio with rules
mentioned above.
In this case, the SNS_array and SNSK_array values will be as mentioned below:
89
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