概览
描述
RX671 电容式触控评估系统使用户能够轻松评估瑞萨电子提供的触控解决方案。 您可以使用套件中的电路板和软件即刻开始评估，开箱即用。
产品配置
- RX671 CPU 板
- 触摸应用板
- 自电容评估板设有三种基础的电容触控功能：开关、滑条和滚轮
特性
- 用于评估各种触摸功能（按钮、滑块、滚轮）
- 简化原型产品设计
- 在设计电路板或软件时用作参考
- 使用 QE for Capacitive Touch 软件轻松调整灵敏度
- 界面直观、操作简单
- 借助 GUI，即使是初学者也能轻松开发触控界面
- 自动输出调整后的源代码
- 配备 RX671 MCU (R5F5671EHDFP)
- 电容式触控传感器 (CTSUa) 引脚，提供 36 个通道
应用
文档
相关文档
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| 类型 | 文档标题 | 日期 |
| 手册 - 开发工具 | PDF 992 KB 日本語 | |
| PCB 设计文件 | RTK0EG0044S01001BJ - Design Package
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| 应用说明 |
PDF
682 KB
日本語
AI 生成的摘要:
The RX671 Capacitive Touch Evaluation System sample code enables control of capacitive touch electrodes including buttons, slider, and wheel, integrated with LED control on the evaluation board. It supports USB serial communication for monitoring and tuning via QE tools. The software structure uses smart configurator-generated components and FIT modules, running on the RX671 MCU at 120MHz. The package includes source files for touch configuration, LED control, and peripheral drivers, facilitating development and tuning of capacitive touch applications.
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| 应用说明 |
PDF
6.87 MB
日本語
Functional safety functions are becoming an important on system design as automatic electronic control systems continue to expand to a wide range of applications. This APN describes the software for capacitive touch sensor(CTSU) functional safety self test.
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| 工具新闻 - 发布公告 | PDF 176 KB 日本語 | |
| 应用说明 |
PDF
1.33 MB
日本語
AI 生成的摘要:
The CTSU module enables capacitive touch measurements across various RX Family MCUs, supporting multiple CTSU peripheral versions with distinct functions. It facilitates touch sensing through software or external triggers, provides sensor CCO correction for accurate readings, and includes initial offset adjustment to compensate parasitic capacitance. The module supports multi-frequency measurements to reduce noise and offers advanced features such as shield functions, diagnosis, and automatic corrections. APIs allow control over measurement start, data retrieval, and calibration. The document details measurement modes, timing, and integration with firmware, enabling precise capacitive touch applications in embedded systems.
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| 应用说明 |
PDF
821 KB
日本語
AI 生成的摘要:
The QE Touch module provides capacitive touch detection using the CTSU hardware on RX family MCUs. It supports button, slider, and wheel touch interfaces with configurable thresholds, hysteresis, and debouncing to prevent chattering and adapt to environmental changes. The module offers measurement processing modes, including majority judgment for reliable touch state detection. It integrates with QE tools for configuration, tuning via UART, and monitoring. Periodic capacitance measurements determine touch states, with drift correction to maintain baseline accuracy. The module supports multiple RX groups and requires periodic scanning and data retrieval calls for operation.
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| 应用说明 |
PDF
1.50 MB
日本語
AI 生成的摘要:
Capacitive touch sensors measure capacitance changes caused by finger contact using a sensor drive pulse and current measurement. Ripple noise from the power supply or peripheral circuits distorts these measurements by adding noise currents, causing inaccurate touch detection. To ensure high accuracy and reliability, power supply design must minimize ripple noise. The document explains measurement principles, ripple noise effects, and countermeasures including power supply circuit selection, switching circuits, board layout, and touch parameter tuning. It covers RX, RL78, and RA family MCUs embedding CTSU1 and CTSU2 types of capacitive touch sensing units.
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| 应用说明 | PDF 959 KB 日本語 | |
| 应用说明 |
PDF
14.17 MB
日本語
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.
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| 应用说明 |
PDF
2.18 MB
日本語
AI 生成的摘要:
The software filters for capacitive touch systems include FIR, IIR, single-pole IIR, and median filters, each with detailed specifications, usage examples, and API descriptions. The document covers embedding these filters into existing projects for RA2L1, RX130, and RL78/G16 microcontroller groups, detailing operation conditions, software configuration, and filter parameter adjustments. It also provides development environment and hardware setup information to support capacitive touch evaluation systems.
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| 应用说明 | PDF 2.75 MB 日本語 , English | |
| 应用说明 | PDF 2.41 MB 日本語 , English | |
| 应用说明 |
PDF
1.79 MB
日本語
AI 生成的摘要:
This document explains how to develop capacitive touch applications using Renesas RX microcontrollers with QE and FIT modules. It guides through project creation in e² studio IDE, using Smart Configurator and QE for Capacitive Touch plug-in to create, tune, and monitor touch sensing. It lists required tools including RX140 evaluation board, Renesas compilers, emulators, and software modules. The document details high-level integration steps and provides an example application workflow for touch detection.
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| 应用说明 | PDF 5.97 MB 日本語 , English | |
| 应用说明 |
PDF
2.33 MB
日本語
, English
AI 生成的摘要:
电容式触摸开关通过检测人体与电极间的静电电容变化工作，最初应用于智能手机，现广泛用于家电、影音设备、汽车及工业设备。触摸开关无机械部件，安装灵活，可用于曲面。检测方式包括单电极的自电容方式和双电极的互电容方式。瑞萨采用开关电容滤波器将电容变化转换为电流，提升灵敏度和抗噪声能力，实现可靠触摸检测。
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16 项目
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设计和开发
软件与工具
软件与工具
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Software type
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公司
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| C/C++ Compiler Package for RX Family [CC-RX] C/C++ Compiler Package for RX Family [IDE: CS+, e² studio, High-performance Embedded Workshop]
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Compiler/Assembler | 瑞萨电子 |
| E2 emulator [RTE0T00020KCE00000R] On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX, RISC-V MCU]
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Emulator | 瑞萨电子 |
| E2 emulator Lite [RTE0T0002LKCE00000R] On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
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Emulator | 瑞萨电子 |
| QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch Sensors In developing embedded system using the capacitive touch sensor of MCUs, you can easily setup initial configurations of the touch interface as well as process the tuning of sensors, and reduce development time. [Plugin for Renesas IDE "e2 studio"] [Standalone Version] [Support MCU/MPU:RA, RL78, RX, Renesas Synergy™]
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Solution Toolkit | 瑞萨电子 |
| e² studio - Information for the RX Family Eclipse-based Renesas integrated development environment (IDE).
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IDE and Coding Tool | 瑞萨电子 |
5 项目
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样例程序
样例程序
筛选
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| 类型 | 文档标题 | 日期 日期 |
| 示例代码 | RX Family QE CTSU Module Using Firmware Integration Technology Rev.3.30 - Sample Code
应用:
人机界面（HMI）
Function:
HMI
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| 示例代码 | RX Family QE Touch Module Using Firmware Integration Technology Rev.3.30 - Sample Code
应用:
人机界面（HMI）
Function:
HMI
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| 示例代码 | Capacitive Sensor MCU Capacitive Touch Software Filter Sample Program
[Software=RX Driver Package|V2.20;RA Flexible Software Package|v5.3.0],[Toolchains=CC-RL|V1.13.00;CC-RX|V3.06.00;GNU Arm Embedded|13.2.1.arm-13-7]
ZIP
16.10 MB
日本語
应用:
消费电子产品
Compiler:
CC-RL, CC-RX, GNU ARM Embedded
Function:
Application Example, HMI
IDE:
e2 studio
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| 示例代码 | RX671 Capacitive Touch Evaluation System Sample Code Rev.1.00
[Software=RX Driver Package|V1.36],[Toolchains=CC-RX|V3.04.00]
ZIP
12.90 MB
日本語
应用:
消费电子产品
Compiler:
CC-RX
Function:
Evaluation Kit, HMI
IDE:
e2 studio
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4 项目
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相关评估板和套件
开发板与套件
入门
Renesas Starter Kit+ for RX671
The Renesas Starter Kit+ for RX671 is the perfect starter kit for developers who are new to the RX671 (Code Flash 2MB, Pin Count 144-pin). The kit includes an LCD display module and an on-chip debugging emulator. Download the integrated development environment (CS+ version and e² studio version)... 阅读详情
参考设计
电容式触摸 近距离触摸控制 参考设计
非接触式按键参考设计使用瑞萨电子的电容式触摸解决方案，可以检测手指和手在接近，无需物理接触。 电极通过自电容检测手指的接近程度，并打开 LED。 该演示解决方案与所有类型的瑞萨电子电容式触摸 CPU 板兼容。
瑞萨电子的非接触式按键参考设计解决了传统技术（红外传感器、超声波等）的问题。借助瑞萨电子的非接触式按钮设计，您只需要一个电极;不受光影响，并且可与其他电容功能结合使用。
该设计可应用于以下用例：
- 当您不想或不能触摸表面（比如电梯按钮等）时
- 当你的手被占用时（比如自动售货机等）
- 当你的手湿时（比如冰箱）
- 其他你不想碰的物品（比如智能马桶）
参考设计
电容式触摸 水位测量 参考设计
该参考设计使用瑞萨电子电容式触摸按键解决方案，通过单通道自电容电极和单通道屏蔽电极测量水位。 电极和储液罐需要用导体进行 GND 屏蔽，但线性值可用一个自电容电极通道测量。
瑞萨电子的电容式传感器应用参考设计解决了传统水位测量技术（流动方式、重量传感器）的问题。 考虑到通过水流进行水位检测时，许多物理部件很容易因材料疲劳和劣化而损坏从而导致高昂成本。 此外，在考虑通过重量传感器进行水位检测时，由于传感器元件和外围电路，可能会产生高昂的成本。
瑞萨电子的水位测量方式里，零件几乎不会出现材料疲劳和磨损; 它们很坚固。 对于使用微控制器的系统，只需更换微控制器并添加电极，而且成本很低。... 阅读详情
产品选项
| 器件号 | 状态 | 库存 | 预算价格（美元） | Description |
|---|---|---|---|---|
| RTK0EG0044S01001BJ | Active | 有库存 | 1u | $152.94 | Capacitive Touch Evaluation System for RX671 |
视频和培训
新闻和博客
博客 2023年3月22日 |
博客 2022年5月17日 |
博客 2022年3月4日 |
