RA Flexible Software Package (FSP)

For additional information and links, go to GitHub.

v6.3.0

Release Notes

Flexible Software Package (FSP) for Renesas RA MCU Family, version 6.3.0

Minimum e² studio version for FSP 6.3.0 is e² studio 2025-12

• Download the FSP with e² studio Windows installer for this release: FSP Windows Platform Installer
• Download the FSP with e² studio Linux installer for this release: FSP Linux Platform Installer
  • Refer to Installing e² studio in a Linux PC | Renesas Customer Hub for information on installing e² studio and related software components on a Linux PC.
• Download the FSP with e² studio MacOS (Apple Silicon) installer for this release: FSP MacOS Platform Installer
  • Refer to the Quick Start Guide for the e² studio for macOS for information on installing e² studio and related software components on a macOS PC.

If using IAR or Keil MDK, download the Renesas Advanced Smart Configurator (RASC) for this release.

• For Windows download: FSP RASC Windows Installer
• For Linux download: FSP RASC Linux Installer
• For macOS (Apple Silicon) download: FSP RASC macOS Installer

All installers are available in the Assets section of this release.

Refer to the README.md in the FSP root folder for setup instructions, hardware details, and related links.

New Features

• Added support for PTX Native-Tag add-on API on PTX105R NFC Reader
• Added CEU image capture mode support with optional scale down and YCbCr422 to YCbCr420 format conversion
• Added support for all compare match events on GPT module
• Added support for SPI burst transfer without delay, which allows sending multiple data frames consecutively without any delay between frames
• Added support for USB0 and USB1 simultaneous operation
• MCUBoot supports updating multi-images, especially for multi-core boards
• Updated PQC-Lib to v2.00, which adds support for MLKEM-1024 and MLDSA-87 algorithms
• An SBOM (.spdx) is now generated and uploaded as part of FSP releases
• Added FSP solutions templates for TrustZone projects
• Added Modbus Serial slave module support
• lwIP
  • Added lwIP NetBIOS name server application support
  • Added lwIP SMTP Client application support
  • Added lwIP Iperf application support
• Added HAUD (audio 2.0) driver support
• Added KDF-HMAC feature for RSIP-E11A PM driver
• Added brainpool curve support for ECDH feature for RSIP-E51A and RSIP-E50D PM driver
• Added prehash support for ML-DSA
• Added Per Stream Filtering and Policing (PSFP) feature support
• Added frame preemption feature support on RA8M2, RA8D2, RA8T2, RA8P1 Ethernet drivers
• Allow override of d1_cacheflush() and d1_cacheblockflush() r_drw D1 layer functions

Fixes and Improvements

• Fixed default support of battery charging in USB stack for some devices
• Support for the mbedtls_aes_cmac_prf_128 hardware accelerator function
• Fixed the incorrect address space in MCUboot multi-image by updating the linker configuration
• Added workaround document for e² studio 2025-12 Solution project pin config issues
• Fixed TrustZone guard function generation for R_GPT_CompareMatchSet()
• Updated r_agt usage notes regarding restrictions with event counting and low power modes per TU TN-RA*-A0133B/E
• Added asymmetric plaintext key generation support for SCE9 and RSIP-E51A in PSA Crypto
• Updated SCE9 Protected Mode APIs to check parameters when parameter checking macro SCE_CFG_PARAM_CHECKING_ENABLE is enabled
  • The parameter checking that was already present in previous version is also reflected only if SCE_CFG_PARAM_CHECKING_ENABLE is enabled.
• R_VIN:
  • Fixed UDS Passband calculation when image scaling is used
  • Fixed generation of Image Stride setting and runtime buffer size
  • UDS Enabled state now automatically determined based on configured image input and output sizes
• Updated KDF-SHA feature for RSIP-E11A PM driver to remove the restriction on input message length (up to 64 bytes)
• Updated LLVM version to 21.1.1
• Updated IAR toolchain to v9.70.2
  • IAR v9.70.2 includes new device support for RA0L1, RA2T1, RA4C1, RA8D2, RA8M2, RA8P1, and RA8T2
• Reduced code size of AES algorithm for RSIP-E11A PM driver
• Reduced total code size for RSIP Protected Mode driver for RSIP-E31A
• Updated AES-XTS control procedures for RSIP-E51A and RSIP-E50D PM driver in order to satisfy CMVP key requirement
• Corrected RA8M2 SiP (LFBGA-303) and HLQFP-176 part numbers
• Added missing RA8T2 SiP (LFBGA-303) part numbers
• r_ospi_b:
  • Fixed code generation to use the erase table for the initial command set in the spi_flash_cfg_t config structure for backwards compatibility
• rm_block_media_spi, rm_levelx_nor_spi, rm_littlefs_spi_flash:
  • Updated OSPI_B start address macro usage to support devices with multiple OSPI_B peripherals
• Added support to use decimal input type for TAU PWM duty cycle percent
• Fixed RMAC read overflow issue
• Ocrypto version updated to v3.9.4
• Enabled Ocrypto for RA0E1, RA0E2, RA0L1, RA2E2, and RA2L1 devices
• Fixed build error when USBX Host Hub is enabled
• Reordered HCDC type assignment to fix CDC data transfer issue for Host Composite and HCDC_ECM when parameter checking mode is enabled
• Reduced total code size for RSIP Protected Mode driver for RSIP-E11A
• Platform installer updated to include e² studio 2025-12
• Removed a vulnerability in the RSA signature verification APIs in SCE Protected Mode
• Segger JLink version updated to 8.92
• Added a note about the counter value to the R_TML_StatusGet API description
• Fixed issue where CANFD CH0 RNC setting was incorrectly applied to CH1(instance 1)
• Updated UARTA permissible baud rate error formula per TU
• E2 Emulator support updated to v2.7.1

Known Issues

• Solution Projects (TrustZone, Multicore):
  • There are issues related to pin configuration synchronization between projects in e² studio 2025-12. Refer to this document for workarounds.
• RA0E1:
  • e² studio projects automatically reset compiler optimization to a Size setting on every generate or build operation
  • Add optimization flags (e.g. -O0) manually to 'Other optimization flags' to override the -Oz setting
  • HS400x and ZMOD4xxx sensors cannot be used on RA0E1
  • FS3000 sensor does not support SAU-I2C driver
• Selecting 'Safely Remove Hardware and Eject Media' on Windows and eject the mass storage (PMSC), when using USBX composite device (PCDC+PMSC), the Windows Explorer for PMSC does not disappear.
• PMSC may not work properly when USBX Composite Device (PCDC+PMSC) is connected to a specific Linux OS
  (USB Host).
• For known issues in the tools, please refer to the respective tool's release notes, e² studio RN

Deprecations

• AES-XTS key injection feature for RSIP-E31A is deprecated and will be removed in the next major release
• NPU secure and privilege attributes in rm_ethosu are deprecated; configure via OFS2 instead

Visit GitHub Issues for this project.