Release Notes 26.00.00.STS

Table of Contents

• New in this Release
• Modules Not tested/supported in this release
  • Device and Validation Information
  • Dependent Tools and Compiler Information
  • Key Features
    • Experimental Features
    • OS Kernel
    • Driver Porting Layer (DPL)
    • Secondary Bootloader (SBL)
    • SOC Device Drivers
    • Trigonometric Operations
    • Board Device Drivers
    • Networking
    • Safety Diagnostic Library
    • PRU IO
  • Fixed Issues
  • Known Issues
  • Errata
  • Limitations
  • Release Types
    • How to Identify Release Type
    • EA (Early Adopter)
    • STS (Short Term Support)
    • LTS (Long Term Support)
    • Release Type Comparison
  • CI/CD Strategy
  • Software Bill of Materials
  • Upgrade and Compatibility Information
    • How to run FOTA examples on AM263PX-SIP board
    • Compiling examples in MacOS machines
    • RPRC Image format is Deprecated and Corresponding SBL's are also removed from SDK
    • Flash Reset moved to SysCfg
    • Module clock configuration through Clock Tree
    • Migrating back from CCS Theia to CCS Eclipse
      • Importing and Building in Eclipse
      • CCS SBL Loading
    • Migrating examples to 11.00.00 from older versions
      • Makefile Changes
    • SDL PBIST Self test
    • SDL STC Configuration
    • SDL Handler API name update
    • Compiler Options
    • SOC Device Drivers
    • Ethernet and Networking

Attention

1. Also refer to individual module pages for more details on each feature, unsupported features, important usage guidelines.

2. RPRC image format has been deprecated from 11.00.00 release. Multi Core ELF image format support should be used.(Understanding Multicore ELF image format)

3. The default Stack size is 16KB and Heap size 32 KB for SDK examples. This can be adjusted as per application requirement through Memory Configurator in SysCfg or by updating Linker script in case of standalone applications.

4. SDK has been updated to support CCS Theia Out of Box from 11.00.00 release. Refer to Compatibility section below for changes w.r.t Eclipse.

5. For customer migrating from any release before SDK 10.00.00 to 10.00.00 or any release after, "DPL CFG" module has to be added in SysCfg in order to enable interrupts during DPL initialization. This module was added in SysCfg for 10.00.00 release to allow configuring Init time Enable/Disable of interrupts for RTOS applications (Default set to enabled).

Note

The examples will show usage of SW modules and APIs on a specific CPU instance and OS combination.
Unless explicitly noted otherwise, the SW modules would work in both FreeRTOS and no-RTOS environment.
Unless explicitly noted otherwise, the SW modules would work on any of the R5F's present on the SOC.

New in this Release

Feature	Module
TUV Functional Safety certification received for SDL	SDL
I2C DMA transfer support with driver and example	I2C
Configurable SBL restricted memory region	SBL
Feature Extraction library for AI applications	AI
AI Examples: Arc fault detection, Motor fault detection, Time series classification/regression	AI
Sensor BoosterPack integration for Edge AI	AI
Device Agent Protocol (DAP) for Edge AI Studio communication	AI
Baremetal Layer-2 packet transfer and reception example	Networking
XIP+RL2 Networking example support on Lwip	Networking

Modules Not tested/supported in this release

Device and Validation Information

SOC	Supported CPUs	EVM	Host PC
AM263Px	R5F	AM263Px ControlCard Rev B (referred to as am263px-cc in code).	Windows 10 64b or Ubuntu 18.04 64b or MacOS
AM263Px	R5F	AM263Px LaunchPad Rev A (referred to as am263px-lp in code).	Windows 10 64b or Ubuntu 18.04 64b or MacOS

Dependent Tools and Compiler Information

Tools	Supported CPUs	Version
Code Composer Studio	R5F	20.5.0
SysConfig	R5F	1.27.0 build, build 4565
TI ARM CLANG	R5F	4.0.4.LTS
FreeRTOS Kernel	R5F	11.1.0
LwIP	R5F	STABLE-2_2_1_RELEASE
Mbed-TLS	R5F	2.13.1
Uniflash	R5F	9.5.0

Key Features

Experimental Features

Attention

Features listed below are early versions and should be considered as "experimental".

Users can evaluate the feature, however the feature is not fully tested at TI side.

TI would not support these feature on public e2e.

Experimental features will be enabled with limited examples and SW modules.

Feature	Module
GUI for UART Uniflash Tool	Bootloader
Ether-ring Driver Implementation	Networking
Ether-ring Demo with Real Time Traffic Generator and Background LwIP traffic	Networking
Smart Layout	OptiFlash
Etherring demo showcasing the integration of vehicle CAN bus data through a CAN-Ethernet gateway	Networking
Ethernet MDIO with Clause 45 support	Networking

OS Kernel

OS	Supported CPUs	SysConfig Support	Key features tested	Key features not tested / NOT supported
FreeRTOS Kernel	R5F	NA	Task, Task notification, interrupts, semaphores, mutexs, timers	Task load measurement using FreeRTOS run time statistics APIs. Limited support for ROV features.
FreeRTOS POSIX	R5F	NA	pthread, mqueue, semaphore, clock	-
NO RTOS	R5F	NA	See Driver Porting Layer (DPL) below	-

Driver Porting Layer (DPL)

Module	Supported CPUs	SysConfig Support	OS support	Key features tested	Key features not tested / NOT supported
Cache	R5F	YES	FreeRTOS, NORTOS	Cache write back, invalidate, enable/disable	-
Clock	R5F	YES	FreeRTOS, NORTOS	Tick timer at user specified resolution, timeouts and delays	-
CpuId	R5F	NA	FreeRTOS, NORTOS	Verify Core ID and Cluster ID that application is currently running on	-
CycleCounter	R5F	NA	FreeRTOS, NORTOS	Measure CPU cycles using CPU specific internal counters	-
Debug	R5F	YES	FreeRTOS, NORTOS	Logging and assert to any combo of: UART, CCS, shared memory	-
Heap	R5F	NA	FreeRTOS, NORTOS	Create arbitrary heaps in user defined memory segments	-
Hwi	R5F	YES	FreeRTOS, NORTOS	Interrupt register, enable/disable/restore, Interrupt prioritization	-
MPU	R5F	YES	FreeRTOS, NORTOS	Setup MPU and control access to address space	-
Semaphore	R5F	NA	FreeRTOS, NORTOS	Binary, Counting Semaphore, recursive mutexs with timeout	-
Task	R5F	NA	FreeRTOS	Create, delete tasks	-
Timer	R5F	YES	FreeRTOS, NORTOS	Configure arbitrary timers	-

Secondary Bootloader (SBL)

Module	Supported CPUs	SysConfig Support	OS support	Key features tested	Key features not tested / NOT supported
Bootloader	R5FSS0-0	YES	NORTOS	Boot modes: OSPI, UART. All R5F's. MCELF, multi-core image format	-

SOC Device Drivers

Peripheral	Supported CPUs	SysConfig Support	DMA Supported	Key features tested	Key features not tested / NOT supported
ADC, ADC_R	R5F	YES	Yes. Examples: adc_soc_continuous_dma, adc_alternate_dma_trigger	Single software triggered conversion, Multiple ADC trigger using PWM, Result read using DMA (normal and alternate triggers), EPWM trip through PPB limit, PPB features, Burst mode, Single and Differential mode, Interrupt with Offset from Aquisition Window, EPWM/ECAP/RTI triggered conversions, Trigger Repeater for Undersampling and Oversampling, Global Force on Multiple ADCs, Internal DAC Loopback to Calibration Channels, Safety Checker and Aggregator, Open Short Detection feature	External channel selection
Bootloader	R5F	YES	Yes. DMA enabled for SBL OSPI	Boot modes: OSPI, UART. All R5F's	-
CMPSS	R5F	YES	NA	Asynchronous PWM trip, digital filter, Calibration, Diode Emulation example	CMPSS Dac LoopBack feature
CPSW	R5F	YES	No	MAC loopback, PHY loopback, LWIP: Getting IP, Ping, Iperf, Layer 2 MAC, Layer 2 PTP Timestamping and Ethernet CPSW Switch support, TSN stack	RMII, MII mode
DAC	R5F	YES	Yes. Example: dac_sine_dma	Constant voltage, Square wave generation, Sine wave generation with and without DMA, Ramp wave generation, Random Voltage generation	-
ECAP	R5F	YES	yes. Example : ecap_edma	ECAP APWM mode, PWM capture, DMA trigger in both APWM and Capture Modes, ecap signal monitoring example	-
EDMA	R5F	YES	NA	DMA transfer using interrupt and polling mode, QDMA Transfer, Channel Chaining, PaRAM Linking, Error Handling	-
EPWM	R5F	YES	Yes. Example: epwm_dma, epwm_xcmp_dma	Multiple EPWM Sync from Top Module, PWM outputs A and B in up-down count mode, Trip zone, Update PWM using EDMA, Valley switching, High resolution time period adjustment, chopper module features, type5 features	-
EQEP	R5F	YES	NA	Speed and Position measurement. Frequency Measurement, Speed and Direction Measurement, cw-ccw modes	-
FSI	R5F	YES	Yes. Example: fsi_loopback_dma	RX, TX, polling, interrupt mode, Dma, single lane loopback.	- FSI Spi Mode
GPIO	R5F	YES	NA	Output, Input and Interrupt functionality	-
I2C	R5F	YES	No	Controller mode, basic read/write	-
IPC Notify	R5F	YES	NA	Mailbox functionality, IPC between RTOS/NORTOS CPUs	M4F core
IPC Rpmsg	R5F	YES	NA	RPMessage protocol based IPC	M4F core
LIN	R5F	YES	YES	RX, TX, polling, interrupt, DMA mode.	-
MCAN	R5F	YES	No	RX, TX, interrupt and polling mode, Corrupt Message Transmission Prevention, Error Passive state, Bus Off State, Bus Monitoring Mode	-
MCSPI	R5F	YES	Yes. Example: mcspi_loopback_dma	Controller/Peripheral mode, basic read/write, polling, interrupt and DMA mode	-
MDIO	R5F	YES	NA	Register read/write, link status and link interrupt enable API	-
MMCSD	R5F	YES	NA	MMCSD 4bit, Raw read/write, file IO, eMMC	-
PINMUX	R5F	YES	NA	Tested with multiple peripheral pinmuxes	-
PMU	R5F	NO	NA	Tested various PMU events	Counter overflow detection is not enabled
OptiFlash	R5F	Yes	NA	FLC, RL2, RAT functionality, XIP with RL2 enabled, OTFA, FOTA, Optishare, Smart Layout	-
OSPI	R5F	YES	Yes. Example: ospi_flash_dma	Read direct, Write indirect, Read/Write commands, DMA for read	-
RTI	R5F	YES	No	Counter read, timebase selection, comparator setup for Interrupt, DMA requests	Capture feature, fast enabling/disabling of events not tested
RESOLVER	R5F	YES	No	Angle and Speed Calcution. input Band Pass Filter, Manual Phase Gain Correction and Manual Ideal Sample Selection Mode calculation, Non-Rotational Safety Diagnostic features, Dual motor/Single motor redundant sensing	Tuning, Rotational Safety Diagnostic features
SDFM	R5F	YES	yes. Example : sdfm_filter_sync_dmaread	Filter data read from CPU, Filter data read with PWM sync, triggered DMA read from the Filter FIFO, ECAP Clock LoopBack	-
SOC	R5F	YES	NA	Lock/unlock MMRs, clock enable, set Hz, Xbar configuration, SW Warm Reset, Address Translation	-
SPINLOCK	R5F	NA	NA	Lock, unlock HW spinlock	-
UART	R5F	YES	Yes. Example: uart_echo_dma	Basic read/write at baud rate 115200, polling, interrupt mode	HW flow control not tested, DMA mode not supported
WATCHDOG	R5F	YES	NA	Reset mode, Interrupt mode	-

Trigonometric Operations

Peripheral	Supported CPUs	SysConfig Support	DMA Supported	Key features tested	Key features not tested / NOT supported
TMU	R5F	NO	NA	TMU Operations, Pipelining, Contex Save	Square Root, Division Operations. more than 1 Interrupt Nesting for the contex save is not Supported.

Board Device Drivers

Peripheral	Supported CPUs	SysConfig Support	Key features tested	Key features not tested
EEPROM	R5F	YES	Only compiled	-
FLASH	R5F	YES	OSPI Flash	-
LED	R5F	YES	GPIO	-
ETHPHY	R5F	YES	Tested with ethercat_slave_beckhoff_ssc_demo example	-
PMIC	R5F	YES	LDO Voltage control	-
IOEXPANDER	R5F	YES	IO configurability	-

Networking

Module	Supported CPUs	SysConfig Support	OS Support	Key features tested	Key features not tested
Time-Sensitive Networking(gPTP-IEEE 802.1AS)	R5F	NO	FreeRTOS	gPTP IEEE 802.1 AS-2020 compliant gPTP stack, End Nodes and Bridge mode support, YANG data model configuration, IEEE 1722 compliant AVTP Stack	Multi-Clock Domain
LwIP	R5F	YES	FreeRTOS	TCP/UDP IP networking stack with and without checksum offload enabled, TCP/UDP IP networking stack with server and client functionality, basic Socket APIs, netconn APIs and raw APIs, DHCP, ping, TCP iperf, scatter-gather, DSCP priority mapping	Other LwIP features
Ethernet driver (ENET)	R5F	YES	FreeRTOS	Ethernet as port using CPSW, MAC loopback and PHY loopback, Layer 2 MAC, Packet Timestamping, CPSW Switch, CPSW EST, interrupt pacing, Policer and Classifier, MDIO Manual Mode, Credit Based Shaper (IEEE 802.1Qav), Strapped PHY (Early Ethernet)	N/A
ICSS-EMAC	R5F	YES	FreeRTOS	Switch and MAC features, Storm Prevention (MAC), Host Statistics, Multicast Filtering	Promiscuous Mode
Ether-ring Implementation	R5F	NO	FreeRTOS	Duplicate Rejection, Ring termination and Packet Duplication, Latency measurement for different real-time traffic profiles, Performance KPIs	N/A

Safety Diagnostic Library

Module	Supported CPUs	SysConfig Support	OS support	Key features tested	Key features not tested / NOT supported
MCRC	R5F	NA	NORTOS	Full CPU, Auto CPU Mode and Semi CPU Auto Mode	-
DCC	R5F	NA	NORTOS	Single Shot and Continuous modes	-
PBIST	R5F	NA	NORTOS	Memories supported by MSS PBIST controller.	-
ESM	R5F	NA	NORTOS	Tested in combination with RTI, DCC	-
RTI	R5F	NA	NORTOS	WINDOWSIZE_100_PERCENT, WINDOWSIZE_50_PERCENT ,Latency/Propagation timing error(early)(50% window),Latency/Propagation timing error(late)(50% window)	-
ECC	R5F	NA	NORTOS	ECC of MSS_L2, R5F TCM, MCAN, VIM, ICSSM, TPTC	FSS FOTA and OSPI
ECC Bus Safety	R5F	NA	NORTOS	AHB, AXI, TPTC	-
CCM	R5F	NA	NORTOS	CCM Self Test Mode,Error Forcing Mode and Self Test Error Forcing Mode. TMU and RL2 are also validated	-
R5F STC(LBIST), Static Register Read	R5F	NA	NORTOS	STC of R5F, R5F CPU Static Register Read	-
TMU ROM Checksum	R5F	NA	NORTOS	ROM checksum for TMU	-
Time out Gasket(STOG)	R5F	NA	NORTOS	Timeout gasket feature	-
Thermal Monitor(VTM)	R5F	NA	NORTOS	Over, under and thershold temperature interrupts	-
Integrated Example	R5F	NA	FreeRTOS	Integrated example with all the SDL modules integrated in to one example.	ECC for TPTC, ECC Bus Safety and STC.

Note: SDL is validated only on ControlCard.

PRU IO

Module	Supported CPUs	SysConfig Support	OS Support	Key features tested	Key features not tested
Empty	PRU	YES	Bare Metal	Empty project to get started with PRU firmware development	-

Fixed Issues

ID	Head Line	Module	Applicable Releases	Applicable Devices	Resolution/Comments
MCUSDK-15024	HHV mask is required before setting ADC reference buffers	ADC	11.00.00 onwards	AM263x, AM263Px, AM261x	Implemented the register programming sequence as per TRM
MCUSDK-14935	MMCSD LLD uses incorrect data type for status check	MMCSD	11.00.00 onwards	AM263x, AM263Px, AM261x	Resolved in driver code
MCUSDK-15130	CCS compilation error when adding PBIST to SBL via sysconfig	SBL	11.00.00 onwards	AM263x, AM263Px, AM261x	Fixed by linking prebuilt SDL libraries to SBL project
MCUSDK-14953	Load from json not working in CCS Theia	Flash	11.00.00 onwards	AM263Px, AM261x	Resolved in CCS 20.4
MCUSDK-15080	Incorrect configuration of xspiWipRdCmd	Flash	11.00.00 onwards	AM263Px, AM261x	Resolved in OSPI driver
MCUSDK-15148	SOC RCM clock configuration static register optimized with O2 compilation flag	SOC	11.00.00 onwards	AM263x, AM263Px, AM261x	Resolved in SOC RCM driver
MCUSDK-14933	I2C1 to I2C3 communication failing	I2C	10.02.00 onwards	AM263x, AM263Px, AM261x	Resolved in I2C driver source code
MCUSDK-15404	OSPI DMA read corruption with XIP enabled	Flash	11.01.00 onwards	AM263Px	Added guards to disable and enable XIP during flash write and erase operations
MCUSDK-15240	LIN adaptive baud rate failure	LIN	11.01.00 onwards	AM263x, AM263Px, AM261x	Fixed clock selection and max baud rate computation for adaptive baud rate feature
MCUSDK-15045	SOC RCM register access lock and unlock protection	SOC	11.00.00 onwards	AM263x, AM263Px, AM261x	Implemented lock and unlock protection for MSS_CTRL and RCM register operations
MCUSDK-14967	FSM trigger failure due to pending RTI interrupts	SBL	11.00.00 onwards	AM263x, AM263Px, AM261x	Add WFI loop inside the FSM trigger API to clear pending interrupts
PROC_SDL-9800	SBL OSPI example not working when we integrate LBIST Selftest code into it	SDL	11.01.00 onwards	AM263x, AM263Px, AM261x	Added MCU_LBIST syscfg support in OSPI example
PROC_SDL-9795	PBIST is performing multiple times for L2_1 Memory i.e. in ROM and SDL	SDL	11.01.00 onwards	AM263Px	Removed PBISTROM and MSS_L2_1 in SDL code as redundant when compare ROM test.
PROC_SDL-9702	MSS_L2 memory not cleared for bank 4 and 5	SDL	11.01.00 onwards	AM263Px	Fixed in example.
MCUSDK-13513	AM263Px, AM261x: UDP IPERF TX is unstable with 100Mbps link speed	Networking	10.00.01 onwards	AM263Px, AM261x	Fixed the unstability on the lwip interface layer
MCUSDK-15334	AM26x: Build errors for networking examples in CCS	Networking	11.01.00 onwards	AM263x, AM263Px, AM261x	Added linker failure related files to CCS projectspec build
MCUSDK-15232	AM26x: NORTOS LwIP example does not handle second port operations	Networking	11.01.00 onwards	AM263x, AM263Px, AM261x	Added Netif for the second port

Known Issues

ID	Head Line	Module	Reported in release	Workaround
MCUSDK-13865	HRPWM Deadband sfo example has 1ns jitter	EPWM	10.00.00 onwards	-
MCUSDK-13201	HRPWM waveform not generating (in updwon count) when prescaler is non-zero and HRPE is enabled	EPWM	10.00.01 onwards	None
MCUSDK-13834	EQEP: EQEP frequency measurement example is not working as expected	EQEP	10.00.01 onwards	None
MCUSDK-14059	CMPSS DE example has Glitch in PWM output	CMPSS	10.00.01 onwards	None
MCUSDK-13011	Multicore Empty project not working properly	FreeRTOS	09.01.00 onwards	-
PINDSW-7715	Dual EMAC instance not working with both ports together for icss_emac_lwip example	ICSS-EMAC	09.02.00 onwards	None
PINDSW-7746	Low iperf values in TCP and UDP	ICSS-EMAC	09.02.00 onwards	None
PINDSW-8118	Enabling DHCP mode in icss_emac_lwip example causes assert	ICSS-EMAC	09.02.00 onwards	None
MCUSDK-12756	MbedTLS - Timing side channel attack in RSA private operation exposing plaintext.	Mbed-TLS	08.06.00 onwards	None
MCUSDK-14898	SDL apps fails on other than RFSS0-0 with SBL	SBL, SDL	11.00.00 onwards	This because SBL brings the RFSS1-0 out of reset before the SBL UART prints gets flushed. This will be fixed in next release. As a workaround the application in R5FSS1-0 can delay the start of application till SBL UART prints gets completed.
PROC_SDL-9596	SEC and DED failure in ecc_bus_safety example	SDL	11.01.00 onwards	For AXI_RD_SEC nodes can test in specific core.
PROC_SDL-9617	AXI_S SEC and DED failure	SDL	11.01.00 onwards	For AXI_S node, use CCS to test.
PROC_SDL-8787	ECC TPTC and STC examples are not supported in SDL integrated example.	SDL	10.01.00 onwards	Use standalone examples and for STC use sbl_null with syscfg enabled
PROC_SDL-8857	SDL integrated example does not support ECC Bus Safety.	SDL	10.01.00 onwards	Use standalone example.
PROC_SDL-9163	ECC Aggregators FSS FOTA and OSPI	SDL	10.02.00 onwards	None
PROC_SDL-9129	VTM_TI diag failure	SDL	10.02.00 onwards	None
PROC_SDL-9131	CLK-T1 MSS_DCCC and DCCA diag failure	SDL	10.02.00 onwards	None
PROC_SDL-9820	End of Conversion bit (EOCZ) is not using for reading temperature sensor results in SDL_VTM_getTemp API for AM26x controllers	SDL	11.01.00 onwards	None
MCUSDK-13652	Readelf throws warning while parsing RS note	SBL, QSPI	10.00.00 onwards	-
MCUSDK-14582	Flash: Incorrect flash name after Loading Flash JSON	OSPI	10.00.00 onwards	-
MCUSDK-14647	All CANFD standard ID conigurations are not exposed in SysCfg	CAN	10.02.00 onwards	Configure Config type, ID's,etc in application
MCUSDK-14714	Bufnum of 6 and 12 will cause the vring indexes to get corrupted	IPC	10.00.00 onwards	Use other VRING buffer numbers.
MCUSDK-14879	Potential system hang issue due to priority mask based critical sections.	FreeRTOS	10.00.00 onwards	Not to use Priority mask based critical sections (Disabled by default in SDK).
MCUSDK-14893	Sub projects under system projects cannot be changed in CCS Theia	CCS	11.00.00 onwards	-
MCUSDK-14819	Ram is getting erased/overwritten once warm reset is done in application	SBL	11.00.00 onwards	-
MCUSDK-14851	Few parameters are incorrect in JEDEC table from ospi diag example	OSPI	11.00.00 onwards	Refer flash datasheet and update
MCUSDK-14895	UART LLD Rx error checking logic checks if all errors exist at once	UART	10.00.00 onwards	-
MCUSDK-13011	Data Abort in application when all cores are running freertos using Gel files(CCS)	FreeRTOS	10.00.00 onwards	Flash and use SBL NULL instead of gel files
MCUSDK-14941	McSPI: Non Multiple's of FIFO cannot be transferred in DMA mode	McSPI	10.00.00 onwards	Use FIFO Trigger level of 1.
MCUSDK-14936	Uniflash unable to connect to target in OSPI boot mode	Uniflash	10.01.00 onwards	-
MCUSDK-14914	Unable to add UART communication port to target configuration in Theia	Real Time Debug	10.02.00 onwards	Use the CCXML file from CCS eclipse after updating to correct COM port.
MCUSDK-14644	EST Timestamp verification is failing after link down event	Networking	11.00.00 onwards	Re-apply the EST configuration post link-up
MCUSDK-15145	SBL over Ethernet example broken	Networking	11.00.00 onwards	-

Errata

ID	Head Line	Module	SDK Status
i2189	OSPI: Controller PHY Tuning Algorithm	OSPI	Implemented
i2311	USART: Spurious DMA Interrupts	UART	Implemented
i2324	No synchronizer present between GCM and GCD status signals	Common	Implemented
i2345	CPSW: Ethernet Packet corruption occurs if CPDMA fetches a packet which spans across memory banks	CPSW	Implemented
i2351	OSPI: Controller does not support Continuous Read mode with NAND Flash	OSPI	Implemented
i2354	SDFM: Two Back-to-Back Writes to SDCPARMx Register Bit Fields CEVT1SEL, CEVT2SEL, and HZEN Within Three SD-Modulator Clock Cycles can Corrupt SDFM State Machine, Resulting in Spurious Comparator Events	SDFM	Open
i2356	ADC: Interrupts may Stop if INTxCONT (Continue-to-Interrupt Mode) is not Set	ADC	Implemented
i2375	SDFM: SDFM module event flags (SDIFLG.FLTx_FLG_CEVTx) do not get set again if the comparator event is still active and digital filter path (using SDCOMPxCTL.CEVTxDIGFILTSEL) is being selected	SDFM	Open
i2383	OSPI: 2-byte address is not supported in PHY DDR mode	OSPI	Implemented
i2401	CPSW: Host Timestamps Cause CPSW Port to Lock up	CPSW	Open
i2404	Race condition in mailbox registers resulting in events miss	IPC, Mailbox	Implemented
i2405	CONTROLSS: Race condition OUTPUT_XBAR and PWM_XBAR resulting in event miss	Crossbar	Open
i2485	AM263PX: TMU: TCM Memory Corruption on R5SS0_CORE1 and R5SS1_CORE1 when writing to TMU Registers	TMU	Implemented a workaround Errata : TCM Memory Corruption on R5SS0_CORE1 and R5SS1_CORE1 when writing to TMU Registers Workaround: Do not use initial bytes (0x40-0x3A0) of ATCM from CPU1 allocation. Initial bytes (0x40-0x3A0 => 868 bytes) of CORE1 TCM are blocked using linker command settings of multi-core application/examples. Refer TMU 4 Cores Support
i2427	SDL: RAM SEC can cause spurious RAM writes resulting in L2 and MBOX memory corruption	ECC	Workaround added as an example in examples/sdl/ecc/ (EDMA case only; PRU fix is ongoing)
i2499	SDL: Incorrect data returned to master on single error detection during burst read	ECC	Workaround added as an example in examples/sdl/ecc/ (EDMA case only; PRU fix is ongoing)

Limitations

ID	Head Line	Module	Reported in release	Workaround
MCUSDK-13630	Cache should not be enabled at last 32B L2 Bank boundary	Cache	10.01.00	Create MPU configurations for last 32B of each L2 Bank with Non Cached attribute

Release Types

AM26xx SDK releases follow a tiered support model with three release types: Early Adopter (EA), Short Term Support (STS), and Long Term Support (LTS). Each release type serves different customer needs and provides varying levels of support, quality assurance, and maintenance.

How to Identify Release Type

The release type for each AM26xx SDK release can be identified through the following methods:

Release Notes Introduction Section: Every release note’s Introduction section will specify the release type (EA, STS, or LTS) for that particular release.

EA (Early Adopter)

Early Adopter releases are intended for customers who want early access to new features and capabilities before they are fully validated. These releases allow customers to evaluate new functionality and provide feedback during the development cycle.

Example Use Cases:

• Early evaluation of new features
• Proof-of-concept development
• Providing feedback to the development team
• Planning for future integration

STS (Short Term Support)

Short Term Support releases provide a stable platform with validated features suitable for development and integration activities. These releases offer improved quality assurance compared to EA releases but are not intended for production deployment.

Example Use Cases:

• Development and integration activities
• System validation and testing
• Pre-production evaluation
• Feature completeness verification

LTS (Long Term Support)

Long Term Support releases are production-ready releases that provide the highest level of quality assurance, safety certification support, and long-term maintenance. These releases are recommended for production deployment in automotive and safety-critical applications.

Example Use Cases:

• Production deployment
• Safety-critical applications
• Automotive production systems
• Applications requiring long-term stability and support

Release Type Comparison

Topic	EA (Early Adopter)	STS (Short Term Support)	LTS (Long Term Support)
Quality	Baseline Quality	Baseline Quality (new features)	Functional Safety (if applicable)
Testing	Best Effort	>95% pass	>95% pass
Safety CSP	NA	NA	Yes (if FSQ)
Safety Certification	NA	NA	Yes (Internal / External)
Maintenance	No	No	Will maintain until next LTS release
Bug Fix / Patch Release	No	Bugs that are prioritized will be fixed in the next release; no backporting to STS releases	Bug fixes on the LTS maintenance branch will be prioritized based on the severity of the bug
Feature Addition	Yes	Yes	New features will be added in an LTS release, but post LTS release, new features will not be backported to the LTS maintenance branch
Production Ready	No	Not recommended for Production	Recommended for Production

CI/CD Strategy

AM26xx SDK is also available on GitHub.

• AM263X - https://github.com/TexasInstruments/mcu_plus_sdk_am263x/
• AM263PX - https://github.com/TexasInstruments/mcu_plus_sdk_am263px/
• AM261X - https://github.com/TexasInstruments/mcu_plus_sdk_am261x/

These GitHub repositories provide early access to the latest features, fixes, and improvements as they are developed.

Disclaimer: The GitHub repositories contains software that is not fully tested and may include bugs, errors, or defects that could cause system instability or unexpected behavior. Always review and validate code before use in any application.

Official releases are published under the Releases section of the GitHub repository. These correspond to the versioned releases documented in these release notes and have undergone the quality and testing criteria.

Software Bill of Materials

Component Type	Component Name	Production or Reference	Process Compliance	Certification	Distribution
Tools	${SDK_INSTALL_PATH}/tools/*	Reference	Demo Quality	No	github
Documentation	${SDK_INSTALL_PATH}/docs/*	Reference	Baseline Quality	No	github
Source	${SDK_INSTALL_PATH}/source/*	Production	Baseline Quality	No	github
Examples	${SDK_INSTALL_PATH}/examples/*	Reference	Demo Quality	No	github

Upgrade and Compatibility Information

How to run FOTA examples on AM263PX-SIP board

One difference between AM263PX-SIP and AM263PX is the in package flash. In SIP board, flash is of Non-RWW in nature whereas, it is of RWW in other case. Example FLSOPSKD Benchmark is made to work out of box for AM263PX board but need some manual changes to make it work on AM263PX-SIP board. Here, to make this example with AM263PX-SIP board, please remove the RUN_XIP_IN_PARALLEL macro.

Compiling examples in MacOS machines

Currently the gmac library packaged within SDK is compiled using gcc darwin23.6.0 on Apple MAC. To build SDK examples on a different toolchain, recompile the gmac library by using these steps:

$ cd {SDK_PATH}/tools/boot/multicore-elf/c_modules/gmac
$ make all

• A new library will be created inside mac/dist.
• Rename this file to "gmac.arm64-apple-darwin.darwin.dylib".

RPRC Image format is Deprecated and Corresponding SBL's are also removed from SDK

RPRC image format is no longer supported and MCELF will be the only file format. Older SBL's and Cfg files which mapped to RPRC format are removed and replaced with MCELF variants. Below is the list of updated SBL's and Cfg files:

Deprecated SBL + CFG File	Supported SBL + CFG File
SBL QSPI (default_sbl_qspi.cfg)	SBL QSPI MULTICORE ELF (mcelf_sbl_qspi.cfg)
SBL UART	SBL UART MULTICORE ELF
SBL SD (default_sbl_sd.cfg)	SBL SD MULTICORE ELF (mcelf_sbl_sd.cfg)
SBL CAN (default_sbl_can.cfg)	SBL CAN MULTICORE ELF (mcelf_sbl_can.cfg)
SBL CAN UNIFLASH (default_sbl_can_uniflash.cfg, default_sbl_can_uniflash_app.cfg)	SBL CAN UNIFLASH MULTICORE ELF (mcelf_sbl_can_uniflash.cfg, mcelf_sbl_can_uniflash_app.cfg)

Please refer to the updated SDK example makefiles for Infra changes.

Flash Reset moved to SysCfg

Earlier, flash reset was done in board.c file within application which is now moved to SysCfg. If Flash reset logic needs to be added, please enable "Enable Flash Reset API" configurable in Flash module. This is by enabled out of box for all SDK Flash examples. For custom flash, define the flash reset API in application and add the API name to "Flash Reset Function" configurable.

Module clock configuration through Clock Tree

Previously our SDK had a mix of hardcoded clock configurations and limited configuration flexibility through sysconfig for the modules. With Clocktree, we now have a clear view of the entire clock tree with configurable components like PLL, DPLL, muxes, dividers added with validity checks. Earlier, the Input clock source and frequency for any module was configured through the module view in SysCfg. From now, this has to be done through clocktree.

Please refer to Clocktree for more details.

Migrating back from CCS Theia to CCS Eclipse

SDK was supporting CCS Eclipse until this release and now been migrated to support CCS Theia Out of Box. Below sections describe how to update the applications for Eclipse if needed.

Importing and Building in Eclipse

CCS Projectspec files are same for both Theia and Eclipse. Hence, no update is needed to import and build an SDK application on Eclipse.

CCS SBL Loading

JS Script for SBL loading on eclipse is updated to "load_sbl_eclipse.js". Please refer to CCS Tools for more details.

Migrating examples to 11.00.00 from older versions

Note

Images are shown for AM64x. It is application for AM263PX as well.

Makefile Changes

Library Name change on makefile and CCS projects

From 11.00.00 SDK all the libraries are built separately for OS. There are separate libraries available for NoRTOS and FreeROTS. So the makefiles needs to be updated accordingly. Please refer the sample changes on the makefile below. These changes are not applicbale for the librarries which were already built separately for NoRTOS/FreeRTOS like kernel libraries.

For NoRTOS/baremetal,

Library name change for NoRTOS example

For FreeRTOS,

Library name change for FreeRTOS example

similar change can be done on the CCS project as well

OS define on makefile and CCS projects

Additional macro OS_NORTOS or OS_FREERTOS should be defined on the makefile or CC project based on the OS of the project.

For NoRTOS/baremetal,

OS Macro addition for NoRTOS example

For FreeRTOS,

OS Macro addition for FreeRTOS example

SDL PBIST Self test

VIM Memory groups are added to PBIST self test from this release. Because of this change, Self test (SDL_PBIST_selfTest) API has to be called in polling mode only and interrupt mode is not supported.

SDL STC Configuration

faultInsert and stcDiagnostic are removed from SDL_STC_Config structure as unused in SDL library.

SDL Handler API name update

Handler API names are added prefix with "SDL_". For example, undefInstructionExptnHandler changed to SDL_undefInstructionExptnHandler.

Compiler Options

Module	Affected API	Change	Additional Remarks
-	-	-	-

SOC Device Drivers

Module	Affected API	Change	Additional Remarks
-	-	-	-

Ethernet and Networking

Module	Affected API	Change	Additional Remarks
-	-	-	-