Overview
Description
M3S-S2-Tiny (hereafter abbreviated S2) is the sound playback system which just requires small memory.
This software library is a FIT module based on the Renesas Firmware Integration Technology (FIT). You can easily embed specific software in user applications by combining the required FIT modules.
Use S2 to enable sound output in any device incorporating a target microcontroller. S2's original algorithm compresses and expands sound in ADPCM mode compactly at high speed. It can be used to add true sound output functionality to devices that previously only provided visual indications or beeps.
Components
- Sound data expansion software (library in binary format)
- Sample software for sound reproduction
(Source files in the format of projects for CS+ or e² studio that include a sample driver for the PWM output) - Library function and sample software user's manual and other documents in a complete set
- Sound data compression/expansion tool (PC software)
Image
Image
Features
- Sound compression and expansion using Renesas-specific ADPCM format
16-bit PCM data (files in wav format) is compressed to 4-bit quantity on your PC, and the compressed 4-bit data is expanded to 16-bit PCM data on microcontroller. Then expanded 16-bit data is converted to 8- or 10-bit data according to your system's requirements. - The compressed data of two or more sound channels can be expanded in parallel.
- The processing of expansion being optimized MCU by MCU
- Compact design tailored for embedded systems
Realizable using the internal memory of the MCUs - Includes sound compression/expansion utility (PC application)
Recorded sound data (in wav format) can be compressed on a PC. (The compressed data can be incorporated into the microcontroller.)
* The compressible formats are 16 bits quantized monaural PCM (files in wav format). - Includes sample programs which responds to Renesas IDE.
- Learn More
Target Devices
Documentation
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| Type | Title | Date |
| Application Note |
PDF
292 KB
日本語
This application note explains how to implement the ADPCM Encoder/Decoder Library using Firmware Integration Technology(FIT). S2 Library can playback/record to use RX Family. The S2 library for the Renesas Microcomputer is written in optimized assembler.
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| Application Note |
PDF
266 KB
日本語
AI-generated Summary:
The sample program demonstrates sound playback and compression using an original ADPCM codec on various RX Family CPU boards. It supports voice playback via PWM or D/A output and voice recording by converting PCM input from A/D to ADPCM stored in RAM. The development environment requires specific versions of e2 studio, RXC Toolchain, and emulator tools. Sample programs are provided for RX64M, RX610, RX210, RX111, and RX65N boards, with configurable PWM and D/A output settings. Users connect their systems to the Middleware Evaluation Board for sound playback.
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2 items
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Design & Development
Sample Code
Sample Code
Filters
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| Type | Title | Date Date |
| Sample Code | RX Family Sound Playback/Compression System (Original ADPCM Codec) [M3S-S2-Tiny] Module Firmware Integration Technology Rev3.06 - Sample Code
[Software=RX Driver Package|V1.50],[Toolchains=CC-RX|V3.07.00]
ZIP
2.20 MB
Compiler:
CC-RX
Function:
Driver or Library
IDE:
e2 studio
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| Sample Code | RX Family Sample program that uses Sound Playback/Compression System (Original ADPCM Codec) [M3S-S2-Tiny] Module Firmware Integration Technology Rev.1.01 - Sample Code
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2 items
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Additional Details
Operating Environment
| Target Device | RX Family |
|---|---|
| Integrated Development Environment | |
| Supporting compiler | C/C++ Compiler Package for RX Family [CC-RX] |
| Occupied ROM Size | For sound decompression: approx. 0.5Kbytes For sound compression: approx. 0.4Kbytes |
| Occupied RAM Size | For sound decompression: approx. 40bytes For sound compression: approx. 30bytes * Including the stack |
Purpose
- Sound guidance
- Salutations such as "Welcome" and "Thank you"
- Guidance for equipment operation procedures such as "Please follow instructions" and "Please call the attendant"
- Announcements such as "The bath is ready" and "Breakfast is ready"
- Repeated playback of simple commercial or advertisement such as "Put on the market today"
- Security
- A trespasser, when detected, is warned by a large sound. "Informed to police" or "Crime-prevention camera is at work"
- Safety measures
- Calling one's attention for safety. "Hot water will run out" or "The door will be closed"
- Warning one about abnormal state: "The door (lid) is open" or "The pot has run out of water"
- Substitution of sounds for displays
Use of sounds as substitutes for guidance, warnings, and so on through display elements such as LEDs or LCDs (improvement to functionality)
Image
How to Obtain
The RX Driver Package provides the set of FIT modules. Obtain the package, and you can then download the set of FIT modules you require. Furthermore, FIT modules work in combination with the Smart Configurator, which eases both downloading of the FIT modules and embedding them in user applications.
M3S-S2-Tiny
| Target Device | Application Note Title |
|---|---|
| RX-family MCUs that support FIT modules | RX Family Sound Playback/Compression System (Original ADPCM Codec) [M3S-S2-Tiny] Module Firmware Integration Technology Rev3.06 - Sample Code (ZIP) |
Sample Program
| Device with Confirmed Operation | Application Note Title |
|---|---|
| RX64M、RX610、RX210、RX111、RX65N Group | RX Family Sample program that uses Sound Playback/Compression System (Original ADPCM Codec) [M3S-S2-Tiny] Module Firmware Integration Technology Rev.1.01 - Sample Code (ZIP | English, 日本語) |
If you will be applying the sample program to another microcontroller, make changes and sufficiently evaluate the program according to the specifications of the given microcontroller.
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