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RL78/G22 Fast Prototyping Board
6.4
Note on Using QE for Capacitive Touch
When you are using QE for Capacitive Touch (QE) with this product, change the circuits in the following cases
(1) and (2).
For the methods for developing touch applications with the use of QE, refer to the application note "RL78
Family Using QE and SIS to Develop Capacitive Touch Applications" (R01AN5512).
(1) Usage with the serial connection function of QE
When the serial connection function of QE is to be used (serial communications via QE between the host
PC and the USB connector on the board of this product), modify the J16 jumper block for switching the QE
serial connection as follows.
J16: open-circuit
•
J16: Open-circuit
Figure 6-3 Settings for Use with the Serial Connection Function of QE (Top Side)
Note: When the circuit is configured for the case "(1) Usage with the serial connection function of QE" above,
the following forms of usage are not available with QE.
Debugging or programming through COM port debugging
•
Tuning the capacitive touch sensor via COM port debugging with the use of QE
•
R20UT5121EJ0100 Rev. 1.00
Nov.16.22
6. Handling Precautions
Page 30 of 35
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