RL78/G16 电容式触摸评估系统

AI 生成的摘要: The CTSU module integrates capacitive touch sensing functions for RL78 microcontrollers, supporting multiple peripheral types with distinct features. It enables various measurement modes such as self-capacitance, mutual capacitance, and current measurement, with advanced functions including sensor correction, initial offset adjustment, multi-frequency measurements, shield functionality, and automatic judgment. Measurements can be triggered by software or external events, with results obtained via APIs. The module also supports diagnosis, moving average filtering, and temperature correction. Multi-clock measurements reduce noise, and calibration functions ensure accurate sensor readings. The document details API usage, hardware/software requirements, and operational modes, providing comprehensive guidance for integrating capacitive touch sensing in embedded systems.

AI 生成的摘要: The guide explains methods to enhance noise immunity for capacitive touch sensor MCUs by addressing environmental noise issues that affect capacitance measurements. It covers noise types such as radiated RF, conducted noise, electrostatic discharge (ESD), and electrical fast transients (EFT), referencing IEC 61000-4 standards. The document details hardware and software countermeasures, including board design, multi-frequency measurement, filtering techniques, and protection circuits. It targets RX, RA, RL78 MCU families and Renesas Synergy devices embedding the CTSU module, providing practical design guidelines and evaluation results to ensure stable capacitive touch operation under noisy conditions.