Abov A31G213CLN - Figure 27. Touch Key Value Assignment

A31G213CLN Shield Board Quick Start Guide 3. Building and running project (Shield Board)
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12. unsigned long ts_Get_Key(void)
A. This function returns the current touch key value (32bit).
B. Bits are assigned sequentially from the lowest channel number among the activated keys.
C. If no channel is recognized, 0 is returned.
D. If two or more keys are recognized, the key value is OR calculated.
▪ ex1. If the CS4 key is pressed, the key value is 0x0000 0010.
▪ ex2. If the CS4 key and CS19 keys are pressed, the key value is 0x0000 1010.
Figure 27. Touch Key Value Assignment