Chrom-Art Accelerator Controller (Dma2D); Table 57. Dma2D_Sm_0; Table 58. Dma2D_Sm_1 - ST STM32L4 Series User Manual

3.6.12

Chrom-Art Accelerator controller (DMA2D)

SM CODE
Description
Ownership
Detailed implementation
Error reporting
Fault detection time
Addressed fault model
Dependency on Device configuration
Initialization
Periodicity
Test for the diagnostic
Multiple-fault protection
Recommendations and known limitations
SM CODE
Description
Ownership
Detailed implementation
Error reporting
Fault detection time
Addressed fault model
Dependency on Device configuration
Initialization
Periodicity
Test for the diagnostic
Multiple-fault protection
Recommendations and known limitations
UM2305 - Rev 10
Table 57. DMA2D_SM_0
Periodic read-back of configuration registers
End user
This method must be applied to DMA2D configuration registers.
Detailed information on the implementation of this method can be found in
Section 3.6.14 Extended interrupt and events controller
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Refer to NVIC_SM_0
Table 58. DMA2D_SM_1
Periodic software test for DMA2D functions
End user
This method requires the periodical testing of the DMA2D basic functionality, implemented
through a deterministic transfer and processing of a set of test images from memory to
memory and the checking of the correct execution (output image must be generated as
per specifications). Output image correctness can be performed by fast methods like CRC
fingerprint computation.
Test definition must be able to cover following DMA2D basic functions:
• full image copy
• image filling with a specific color
• copy of part of the image
• pixel format conversion
• blending of two different images
Achieved diagnostic coverage on the module depends on the quantity and variance of tests
performed.
Depends on implementation
Depends on implementation
Permanent
None
Depends on implementation
Periodicity
Not applicable
CPU_SM_0: Periodic core self-test software
In principle, DMA2D basic functions not used in the safety application can be excluded from
this test suite implementation.
Hardware and software diagnostics
DMA2D_SM_0
(EXTI).
DMA2D_SM_1
UM2305
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