microcontroller

Hello ! So I am starting scratch the surface of the Embedded systems world. I have always wondered how to interface a microcontroller like the AVR for example with a USB stick to read the file names for example or the space left or even format/delete files from the USB stick without using any...

Good evening all, Background: I am final year Electrical & Electronic engineering student currently in the process of completing my undergraduate thesis. The thesis topic consists of making a low-cost, non-intrusive, battery powered electronic device that is small enough to fit in the punt (the...

Consider a truck. The Electronic Brake Systems (EBS) ECU receives following message from some other ECU. Please explain this message. From where does some other module acquire the Suspect Parameters Number (SPNs) to send to EBS ECU. What does EBS do with the SPNs it receives?

Hi, I want to simulate the product in the link in a spice program, but there is no spice file provided by the manufacturer. How can I simulate the functions of this product in a program like LTspice? - Product : https://www.nxp.com/part/MCZ33810EK#/ - Datasheet ...

Please consider Active Steering Assist Electronic Control Unit (Steering ECU) used in a commercial truck. It has Lane Keep Assist (LKA) function, Cross-wind compensation, and Road crown compensation. This ECU is composed of a camera input, and driver outputs to control the torque overlay...

It looks like the Pokeys 57U is limited to and older .NET version. Microsoft is currently using .NET 6.0 and it the libraries do not seem to be updated(they don't work!). We use these controllers with Visual Basic extensively in our factory to run equipment. If Pokeys will not be releasing an...

I'm currently doing my master thesis, and I'm now at a point where I have to control a few AC motors with a microcontroller. From my previous study about the subject, and from previous similar thesis, I've noticed a common practice is to use an optocoupler to separate low voltage from high...

I'm working on a project where I have to connect multiple sensors to a microcontroller. We thought about using Arduino mega but the sampling rate (9600Hz) is too slow for what we want to achieve and the machine data we're trying to analyze. We need a Microcontroller with a sampling rate of 50kHz...

This code is to simulate RFID reader working using AT89C51 in Proteus Software. Instead of RFID reader i am using Virtual Terminal for sending or scanning RFID, here in my case I am Typing ID in Virtual Terminal, string 'a' stores input and compares with existing string and gives Output. Problem...

What is Safety of the Intended Functionality (SOTIF) and how does it differ from Functional Safety? What are examples of some SOTIF requirements that are implemented in automotive Electronic Control Units (ECUs)?

I want to use two or more adc channel using I2C and lcd. Can someone help me where i am doing wrong? I don't get a code error but also I can't get number on the lcd. I2c.c #include <xc.h> #include "I2c.h" unsigned char RS, i2c_add, BackLight_State = LCD_BACKLIGHT; //---------------[ I2C...

Hello people, Is there somebody, who can deliver me the user guide for MSP432P401R? I know, this question looks dummy. However the mentioned part lost support from the side of Texas Instruments, and they cannot send me the user guide. The User Guide has to contain information about the registry...

Consider an Electronic Control Unit (ECU) mounted in a vehicle. Let's say this ECU has Three CAN channels as follows: CAN 1 CAN 2 CAN 3 Do these Three CAN channels have to be on different CAN networks? Another words, for example, CAN 1 and CAN 2 are never on the same CAN network? It...

How does messaging work in CAN FD? How are PGNs and SPNs defined for CAN FD? For Extended CAN, SAE J1939-71 defines PGNs and SPNs. All the PGNs and SPNs defined in SAE J1939-71 don't apply to CAN FD? For example, in SAE J1939-71 PGN 65267 is Vehicle Position. There are two SPN's in this...

I have an easy project but if you have enough experience about it. -I have a led which typical forward voltage 2VDC and current value is 20mAh. -I need to drive this led at the different brightness levels. And the levels will be changed by pushing a tact switch. And I have to lock tact switch by...

Please consider Electro Hydraulic Power Steering (EHPS) System installed in a commercial truck. It has dual motors and dual pumps and dual pump Electronic Control Units (ECUs). These pump ECUs communicate with other ECU over public J1939 network. Embedded steering software executes in pump...

Hi, I'm a complete novice in field of electrical circuits and have zero knowledge in this domain. Yet, I wanted to work on IOT but instead of using raspberry pi and similar, I wanted some data out of few devices. For example, I have a very old traditional treadmill which reflects the speed at...

There is a peculiar issue noticed, I need help understanding the reason and may be troubleshooting. There is a microcontroller(87S52) based board with ADC and IO lines. The unit is programmed to operate for a time lets say T secs. When the board is used in the system in stand alone mode, I tend...

Hello, I am sorry to bother you, but after some days staring at this problem I wanted to ask for help. I have some homework, most of wich I have already done, but the I got to the timer part and I have no ideea how to solve this. So I want to ask for some experts help. Task: Generate a PWM...

How do Gateways function to enable over-the-air (OTA) firmware updates for the different electronic control units (ECUs) within the car. Please summarize OTA flashing through gateway to ECU that gets flashed.