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Questions - autosar

Seemingly pointless operations in a macro

The following macro is from an MCAL source of a microcontroller and it converts timer ticks to milliseconds. #define TICKS2MS(x) ( (uint64) (((((uint64)(x)) * 1) + 0) / 100000) ) Could you plea...
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m43dr3

c

embedded

autosar

Votes: 0

Answers: 2

Latest Answer

The multiplication and addition are in fact pointless, as is the outer cast. Both operators perform the usual arithmetic conversions on both operands. For the multiplication, the left operand has type...
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dbush

Physical vs internal value in AUTOSAR

I have been struggling with the conversion of values in AUTOSAR from internal to physical values and vice versa. I understand this: The physical value is the value we send to the application, and the ...
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doa4321

data-conversion

autosar

Votes: 0

Answers: 1

Latest Answer

The software is exclusively working with the internal values. In rare cases, internal values are identical to their physical counter-part. The definition of a conversion formula of values in the inter...
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Uwe Honekamp

What is tasks in embedded system?

I work in the automotive embedded C programming domain and someone asked me what's the OS tasks system of my project (AUTOSAR). I am working in static analysis using Astree tool chain. I didn't have t...
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ahait

embedded

task

rtos

autosar

automotive

Votes: 0

Answers: 2

Latest Answer

A Task is the smallest schedulable unit managed by the OS. It's equivalent to "Thread". A Task is the object which executes (user) code and which is managed by the OS. E.g. the OS switches ...
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Hob_io

Dem_OperationCycleStateType is not available on Dem specification

I want to learn how to use diagnostic operation cycle block in Autosar Blockset. this block consist of two operation, SetOperationCycleState and GetOperationCycleState. To set an operation cycle state...
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Arian

simulink

autosar

Votes: 0

Answers: 1

Latest Answer

It depends on the AUTOSAR Version you are looking at. It seems in AUTOSAR 4.4.0, the interfaces Dem_SetOperationCycleState() / Dem_GetOperationCycleState() are replaced by Dem_RestartOperationCycle()....
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kesselhaus

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