Sr. No.	Title	Version
1	FDD – CM102B FlsMem	See Synergy subproject version
2	Software Naming Conventions	Process 04.04.02
3	Software Coding Standards	Process 04.04.02

Dependencies

SWCs

Module	Required Feature
AR202A MicroCtrlrSuprt	NxtrMcuSuprtLib functions and register definitions
CM800A SyncCrc	CRC HW Module Configuration and Allocation

Note : Referencing the external components should be avoided in most cases. Only in unavoidable circumstance external components should be referred. Developer should track the references.

Global Functions(Non RTE) to be provided to Integration Project

DtsInin - To be defined as a trusted function as the DTS Channel master registers need to be configured in the supervisor mode.

DtsClnUp - To be defined as a trusted function as the DTS registers are being re-configured in the supervisor mode to avoid access protection violation

CodFlsSngBitEcc – Single bit code flash ECC error handler call back function provided to the MCAL driver

Configuration REQUIREMeNTS

Build Time Config

Modules	Notes

Configuration Files to be provided by Integration Project

CDD_FlsMem_Cfg.c

CDD_FlsMem_Cfg_private.h

Da Vinci Parameter Configuration Changes

Parameter	Notes	SWC

/Nexteer/FlsMem/FlashCRCRegnConfig/ StartAddress	Configured with “FlashCRCRegnConfig” Each Flash region(for eg:- Boot, App, Cal1) has a start address where the code resides on the flash	FlsMem
/Nexteer/FlsMem/FlashCRCRegnConfig/Length	Configured with “FlashCRCRegnConfig” Each Flash region has a length defined for the region	FlsMem
/Nexteer/FlsMem/FlashCRCRegnConfig/PredefinedCrcAddress	Configured with “FlashCRCRegnConfig” Each Flash region has a PredefinedCrcAddress defined for the region which is used by the CCT tool for storing the checksum on the flash and serves as the reference location to retrieve the pre calculated CRC and do a comparison with calculated CRC	FlsMem
/Nexteer/FlsMem/FlashCRCRegnConfig/LengthSymbol	Configured with “FlashCRCRegnConfig” Each Flash region has a length defined for the region and accepts linker symbols	FlsMem
/Nexteer/FlsMem/FlashCRCRegnConfig/PredefinedCrcAddressSymbol	Configured with “FlashCRCRegnConfig” Each Flash region has a PredefinedCrcAddress defined for the region which is used by the CCT tool for storing the checksum on the flash and serves as the reference location to retrieve the pre calculated CRC and do a comparison with calculated CRC and accepts linker symbols	FlsMem
/Nexteer/FlsMem/FlashCRCRegnConfig/StartingAddressSymbol	Configured with “FlashCRCRegnConfig” Each Flash region(for eg:- Boot, App, Cal1) has a start address where the code resides on the flash and accepts linker symbol	FlsMem
/Nexteer/FlsMem/FlashCRCRegnConfig/UseSymbolName	Configured with “FlashCRCRegnConfig” to select either the symbol names or the actual values	FlsMem
/Renesas/EcucDefs_Mcu/Mcu/McuModuleConfiguration /McuEcmErrorSourcesCfg/McuEcmErrorSource36	Call back function name is “CodFlsSngBitEcc”. Refer the CM104A Integration manual for the configuration of the error source. (Type of the error, classification of the error eg FENMI or EI information) .
/Nexteer/FlsMem/ApplCRCRegnIdx/ApplCrcRegnNr	The array Index for the application region CRC region definition	FlsMem

DaVinci Interrupt Configuration Changes

ISR Name	VIM #	Priority Dependency	Notes

Manual Configuration Changes

Constant	Notes	SWC
None

Integration DATAFLOW REQUIREMENTS

Required Global Data Inputs

None

Required Global Data Outputs

None

Specific Include Path present

Yes

Runnable Scheduling

This section specifies the required runnable scheduling.

Init	Scheduling Requirements	Trigger
FlsMemInit1	None	Once At Init (RTE)
FlsMemInit2	Non-RTE Init, Called in Startup Sequence*	Function call in Startup Sequence

Runnable	Scheduling Requirements	Trigger
FlsMemPer1	None	100ms(RTE)

*“FlsMemInit2” shall schedule after OS Start – Refer CM100 Start up sequence.

PEG shall be configured before “FlsMemInit2”.

CrcHw Init shall be scheduled before “FlsMemInit2”.

FlsMemInit1 should be called before DiagcMgrInit1

Memory Map REQUIREMENTS

Mapping

Memory Section	Contents	Notes
CDD_FlsMem_START_SEC_CODE
CDD_FlsMem_START_SEC_CONST_UNSPECIFIED		Constant section for constant variable
CDD_FlsMemNonRte_START_SEC_VAR_INIT_128	Data that a DMA channel writes to during CRC test	This gets mapped to a “.data_dma_128” section and/or a “.sdata_dma_128” section (depending on compiler settings) that will need to be explicitly added to the linker file. The intent of these sections is to be placed in a RAM memory section that only the DMA has write access to (processor in user mode only has read access). Additionally, since these are initialized data sections, the appropriate ROM sections will need to be added to the linker to allow initial values to be copied from Flash to RAM during startup for these sections. e.g.: .ROM_data_dma_128 ROM(.data_dma_128) FILL(0xFF) :{}>. and .ROM_sdata_dma_128 ROM(.sdata_dma_128) FILL(0xFF) :{}>.

* Each …START_SEC… constant is terminated by a …STOP_SEC… constant as specified in the AUTOSAR Memory Mapping requirements.

Usage

Feature	RAM	ROM

Table 1: ARM Cortex R4 Memory Usage

NvM Blocks

None

Compiler Settings

Preprocessor MACRO

None

Optimization Settings

None

Appendix

Last modified October 12, 2025: Initial commit (ddf2e20)