5.6. ECC Safety Example¶
5.6.1. Introduction¶
This example shows setup and usage of some ECC Aggregators for a few events in the Main domain. It shows the following:
Setup of an ESM application callback to receive Single Error Correction (SEC) and Double Error Detection (DED) events and setup of ECC Aggregators in general
Triggering of ECC events for a small number of RAM IDs, including Interconnect type and Wrapper type
Printing out error information within the ECC callback upon reception of ECC events
This ECC example application shows basic examples of receiving interrupts from Main ESM, as well as gathering more details about these ECC events.
The following use cases are implemented in this example:
5.6.2. Use Cases¶
Use Case
Description
ESM
ECC Aggregator
ECC RAM ID
RAM ID Type
UC-1
Single DED error on Main ESM for wrapper RAM ID type
ESM0
SDL_ECC_MEMTYPE_MAIN_MSMC_AGGR0
SDL_COMPUTE_CLUSTER0_MSMC_ECC_AGGR0_CLEC_J7ES_CLEC_EDC_CTRL_BUSECC_RAM_ID
Wrapper
UC-2
Single SEC error on Main ESM for wrapper RAM ID type
ESM0
SDL_ECC_MEMTYPE_MAIN_MSMC_AGGR0
SDL_COMPUTE_CLUSTER0_MSMC_ECC_AGGR0_MSMC_MMR_BUSECC_RAM_ID
Wrapper
UC-3
Parity error injection on Main ESM for interconnect RAM ID type
ESM0
SDL_ECC_MEMTYPE_MAIN_MSMC_AGGR0
SDL_COMPUTE_CLUSTER0_MSMC_ECC_AGGR0_VBUSP_CFG_DSP4_P2P_DST_BUSECC_RAM_ID
Interconnect
5.6.3. Example Details¶
The example should be loaded to the hardware using the Secondary Boot Loader (SBL) from the SDK.
Example Name |
Location |
Build Command |
|---|---|---|
ecc_app |
[sdl_install_dir]/examples/ecc/ |
make ecc_app PROFILE=release |
5.6.4. Expected Output¶
ECC Example Application
ECCC_Example_init: Init MAIN ESM complete
SDTF_init: MCU MSMC ECC Init complete
ECC_Example_init: ECC Callback Init complete for Main ESM
ESM Safety Example tests: starting
MSMC Double bit error inject Example test UC-1: starting
ESM Call back function called : instType 0x3, intType 0x2, grpChannel 0x1, index 0x10, intSrc 0x30
Take action
Low Priority Interrupt Executed
ECC Error Call back function called : eccMemType 93, errorSrc 0x2, ramId 107, bitErrorOffset 0x00000000, bitErrorGroup 0
MSMC Double bit error inject test: Subtype 0x6b test complete
Waiting for ESM Interrupt
UC-1: Got Low priority ESM Interrupt
MSMC Double bit error inject Example test UC-2: starting
ESM Call back function called : instType 0x3, intType 0x1, grpChannel 0x1, index 0x11, intSrc 0x31
Take action
High Priority Interrupt Executed
ECC Error Call back function called : eccMemType 93, errorSrc 0x1, ramId 20, bitErrorOffset 0x00000000, bitErrorGroup 0
MSMC Double bit error inject test: Subtype 0x14 test complete
Waiting for ESM Interrupt
UC-2: Got High priority ESM Interrupt
**** MSMC Memory Parity TEST ****
ESM Call back function called : instType 0x3, intType 0x2, grpChannel 0x1, index 0x10, intSrc 0x30
Take action
Low Priority Interrupt Executed
ECC Error Call back function called : eccMemType 93, errorSrc 0x2, ramId 105, bitErrorOffset 0x00000000, bitErrorGroup 3
MSMC_BUSECC_RAM Single bit error self test: Subtype 0x69 test complete
Waiting for ESM Interrupt
Memory Parity Error Test Complete
ECC Safety Example tests: success
ECC UC-1 and UC-2 Test
All Use_Cases have passed.
ecc_main.c:254:ECC_Example_app:PASS
-----------------------
1 Tests 0 Failures 0 Ignored
OK