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SAE J1939 Programming with Arduino – Debugging Macros
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. Please be aware that the following macros are one-liners. Due to the limited page space, some macros appear as wrapped into more than one line and the line breaks are indicated with “\”. SAE J1939 has become the accepted industry standard and [...]
SAE J1939 Programming with Arduino – RTS/CTS Session Test Program
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. Just for kicks, I extended the previously used Arduino sketch to simulate a fully functional RTS/CTS session (yet again, the code is highly tailored to the previous RTS/CTS session). Based on that sketch, I could simulate all error scenarios on the receiver’s side.This [...]
SAE J1939 Programming with Arduino – Conclusion
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. With all previous programming examples installed and explained, you should now have a pretty good grip on programming your own SAE J1939 application with the Arduino Uno and/or the Mega 2560.Yet, there are still numerous, possible scenarios for J1939 applications and all [...]
SAE J1939 Programming with Arduino – ARD1939 Sample Application
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. The typical SAE J1939 ECU application not only involves the protocol stack but also a good amount of input and/or output processing. This could involve reading sensors and sending the result in form of a PGN or reading a PGN and setting [...]
Designing Embedded Systems For The Internet of Things (IoT) Using ARM, Arduino, Raspberry Pi, BeagleBone
The IoT: Building Arduino-Based Projects course will take you on a journey to become an expert in the use of IoT by developing a set of projects and will guide you through securing your IoT environment.In the first module, Learning Internet of Things, you will learn how protocols and patterns can put limitations on network [...]
SAE J1939 Programming with Arduino – End of Message Acknowledgment Timeout
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. In order to test all timeouts during an RTS/CTS session, I used a dedicated Arduino sketch to simulate all the “nasty” features that would trigger a communication breakdown. This method was easier to implement rather than using a full SAE J1939 stack. [...]
SAE J1939 Programming with Arduino – Clear to Send Timeout
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. The simplest test for a Clear to Send timeout is accomplished by running the Mega 2560 ECU as the only node in the network.To test this scenario, I run the Mega 2560 at an address of 0x80 (128) and attempt to initiate [...]
SAE J1939 Programming with Arduino – RTS/CTS Session Message Timing
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. Note the time stamps from line 3 through line 5 of the screen shot (look at the last four numbers indicating the time in tenth of milliseconds; for instance 352.4 milliseconds in line 3). SAE J1939/21 requires a packet frequency between 50 [...]
SAE J1939 Programming with Arduino - Transport Protocol – RTS/CTS Session (SAE J1939/21)
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. Test items include: Basic function Timing controlNaturally, for the RTS/CTS session we will need two SAE J1939 nodes. In my setup that means communication between the Arduino Uno and the Mega 2560 ECUs. [...]
SAE J1939 Programming with Arduino - BAM Session Message Timing
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. Looking at the below image, note the time stamps from line 1 through line 4 of the screen shot (look at the last four numbers indicating the time in tenth of milliseconds; for instance 942.4 milliseconds in line 1). SAE J1939/21 requires a [...]