Amer Naseem (@learn)

I'm embedded software engineer, working for a automotive supplier in East Coast, United States.

Camera ECU PinoutCamera has no external input pinsWithin camera is Low Voltage Differential Signaling(LVDS) interface.  It's from imager to SOC.  The pins are...
It's Autosar J1939 stack.  List of components are:1.  Network Management (Does this include Address claim Process?)2.  J1939 Diagnostics( What's the name of the...
We are using number of Local Interconnect Network(LIN) channels from Renesas RH850 / U2A16 Microcontroller in our embedded system.  All LIN channels in our embedded...

Re: How to fix CAN Bit Stuffing Error

Reply posted 2 years ago (04/22/2021)
>>  Having a solid understanding of the bus and what causes errors is critical.Any resources for gaining solid understanding.

Re: How to fix CAN Bit Stuffing Error

Reply posted 2 years ago (04/08/2021)
There is typo in above comment:The problem occurs with Two specific CAN Ids.  One is transmitted on CAN 1 to Vector CANoe tool and the other is transmitted on CAN...

Re: How to fix CAN Bit Stuffing Error

Reply posted 2 years ago (04/08/2021)
Why multiple senders might cause this problem?  Assuming senders are causing this problem, how to debug  it?The problem occurs with Two specific CAN Ids.  One...

How to fix CAN Bit Stuffing Error

New thread started 2 years ago
Our ADAS Controller is based on Renesas RH850/U2A16 Microcontrollers.  We are using Infineon TLE9255WSK Partial Network CAN Transceivers.  We are using Vector...
Our embedded controller is Advanced Drive Assist Systems(ADAS).  It basically has Two software layers.  Application software and low-level software.  Our controller...

Re: what is CAN bus-off state ?

Reply posted 2 years ago (10/18/2020)
Thank you for easy to understand explanation.  How do I acquire CAN standard (ISO 11898-1, 2015)?  Do I have to purchase it?  It's quite expensive.
Our application is Advanced Drive Assist Systems(ADAS). Our Electronic Control Unit(ECU) contains Two Renesas RH850 / U2A16 Microcontrollers. Each microcontroller...
In embedded software, why does the .map file have _variable names and not just variable names?  A particular variable name in code doesn't start with underscore....

Re: How to convert indentation to space in Vim ?

Reply posted 3 years ago (01/17/2020)
Answer from another forum:%s/\t/    /gIn the example above, there are 4 spaces.
NXP LPC11E68JBD48E Microcontroller I2C1 is Master.   I2C1 is in Master Transmitter Mode.I2C1 peripheral is in chapter 13.  http://www.mouser.com/ds/2/302/UM10732-315822.pdfNXP...
Hardware engineer developed the boards.>> Glad you figured it out                                              All the information and...
Good question:  According to schematic, ADDR pin is connected to VCCAttached are scope screenshots for existing hardware and new hardware.With existing hardware,...
>>  chip is being addressed correctly, but the message content isn't valid.     The message content is only address and write bit.  Please see following...
NXP LPC11E68JBD48E Microcontroller I2C1 is Master. I2C1 is in chapter 13.  I2C1 is in Master Transmitter Mode.http://www.mouser.com/ds/2/302/UM10732-315822.pdfNXP...

Re: An Embedded Software Primer link?

Reply posted 4 years ago (04/17/2019)
I need link for "An Embedded Software Primer" not "Embedded Linux Primer"

Re: Why empty folders don't import to eclipse project ?

Reply posted 5 years ago (02/04/2018)
This is bug in eclipse.  See attached.eclipse File Import Bug.PNG

Re: Why empty folders don't import to eclipse project ?

Reply posted 5 years ago (02/04/2018)
This might be a problem with eclipse Import Wizard because dragging files from the file system and dropping them into one of eclipse navigation views works.  Empty...

Re: Which Linux Editor should I use ?

Reply posted 5 years ago (01/12/2018)
Please provide information on setting up Eclipse IDE for vi.

Which Linux Editor should I use ?

New thread started 5 years ago
My large 'C' language code is in Linux Server. Which Linux Editor should I use to edit and navigate my source code? ...

How to create stack underflow exception ?

New thread started 6 years ago
I'm programming Infineon TC29x Aurix Tricore Microcontroller based embedded system in 'C' language.   Consider...

Re: Indexer doesn't run in eclipse IDE ?

Reply posted 6 years ago (06/22/2017)
Attached is entire preferences page.  Thank you!Indexer Preferences Page

Re:

Reply posted 6 years ago (06/21/2017)
Please disregard following text from my original post:"I need to set program counter to illegal address, i.e. 0x00FF FFFC.  Can this be done with assembly language...
I'm trying to create illegal instruction reset.   I'm programming Infineon TC29x Aurix Tricore Microcontroller based embedded system in...

Re: Indexer doesn't run in eclipse IDE ?

Reply posted 6 years ago (06/20/2017)
Yes, the indexer is enabled.  Please see attached.Indexer Enabled

Re: Indexer doesn't run in eclipse IDE ?

Reply posted 6 years ago (06/18/2017)
Thank you for the reply.My indexer isn't even running.When I right-click on my project, I don't have Index menu.From Windows - Preferences  - C/C++  -  Indexer, ...

Indexer doesn't run in eclipse IDE ?

New thread started 6 years ago
I have following version of eclipse installed in my computer: Eclipse IDE for C/C++ Developers Version: Neon.1a Release (4.6.1) Build id: 2016 1007-1200 From main...
We are using TC29x Microcontroller. The flash size is 6Mbytes. There are Three banks, 2Mbyte each. Program Flash 0 (PF0) is bank 1. Program...
This is not homework.  I'm not in school.
Consider a typical Automotive Embedded  Software System.   A discrete input signal is 0 or 1.  An example of discrete input is ignition...

Re: How to write professional looking test document ?

Reply posted 6 years ago (03/03/2017)
The recommended book seems to be for Software Developer.  Will it be useful for Embedded Software Validation Engineer?  In my original post I attached sample test...

Re: How to write professional looking test document ?

Reply posted 6 years ago (03/03/2017)
We'll be running manual tests.  We'll explore automated tests in future.Does Jenkins automatically create test reports in xml?The test report I attached to my original...
Sample Test CasesAttached is sample test cases document. What is the best program to write test cases professionally, with very nice fonts,...
A typical Powertrain Electronic Control Unit (ECU) is wired with Infineon Aurix Tricore TC29x Microcontroller.  Embedded Software running in the ECU is in C language.Application...
Following is link to LIN Transceiver Datasheet:https://www.infineon.com/dgdl/Infineon-TLE7258-DS-...Page 11 has the following statement:" The BUS output is terminated...
TJA1145T_FD Transceiver.pdfAttached is CAN Transceiver Datasheet. This IC is wired in our Microcontroller based Electronic Control Unit. ...
CAN TransceiverAttached is CAN Transceiver Datasheet. This IC is wired in our Microcontroller based Electronic Control Unit.What will be CAN High (CANH) and CAN...

Re: Why doesn't svn update command work ?

Reply posted 6 years ago (01/13/2017)
Actually above solution that I had found in google is solution to my problem.I manually created tmp folder under .svn folder.  Then, svn update was successful.I'll...

Re: Why doesn't svn update command work ?

Reply posted 6 years ago (01/13/2017)
I tried updating from C:\Projects\my_workspace\my_working_copy  but same error.I was able to find exact error message in google but that was for svn tortoise client...

Why doesn't svn update command work ?

New thread started 6 years ago
I'm using svn, version 1.9.5-SlikSvn (SlikSvn/1.9.5)                   C:\> cd Projects \ my_workspace I had entered...
A typical embedded system, let's say Transmission or Power Train Electronic Control Unit (ECU) is powered by automobile Battery. Battery...

Re: Why isn't object file created?

Reply posted 6 years ago (12/23/2016)
I was expecting makefile to create the Object directory but I didn't see any make directory commands in the makefile.

Re: Why isn't object file created?

Reply posted 6 years ago (12/23/2016)
I created Object folder, then the build worked.

Why isn't object file created?

New thread started 6 years ago
I'm using WindRiver 5.9.4.8 Compiler to cross compile large embedded 'C' language project.The source code is in the hard disk on my windows computer.  The compiler...
Yes, I mean static, file scope variable.  If there is an accessor function, then there is no need for any static, file scope variables.  Whoever needs the value...
Our language is embedded 'C'.  We have global static unsigned int variable called vehicle_speed.  A lower level function is called to fetch vehicle speed and assign...

Vector CAN Flash Error?

New thread started 6 years ago
We are using Vector CAN Flash DC 2.4 to load software (.mot) file into our Electronic Control Unit (ECU). I invoke this tool.  Say 'yes'...

what is CAN bus-off state ?

New thread started 6 years ago
Our target embedded board is based on Renesas RH850F1L Microcontroller.  Our embedded language is 'C'.  Target board controls Driver Memory Seat in a Minivan.We...

Re: Digital Output does not have continuity to ground?

Reply posted 6 years ago (08/18/2016)
This is very helpful.  Thank you!

Re: Digital Output does not have continuity to ground?

Reply posted 6 years ago (08/18/2016)
I had measured the output during run time.  I set the pin high at beginning of a periodic task and set the pin low at the end of periodic task.  And oscilloscope...

Re: Digital Output does not have continuity to ground?

Reply posted 6 years ago (08/15/2016)
OK.  Thanks!
#Renesas RH850F1L Microcontroller has number of pins that can be configured as general purpose inputs or outputs. What might the following...

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