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Hello everyone,
Could someone please explain semaphores in a way that's easy to understand, and perhaps provide some practical examples of how they're used in real-world scenarios within an OS?
Let's say we have a shared resource, like a printer, that multiple threads need to use...
Understood till this logic what to do next ?
#define MAX_SENTENCE_LENGTH 20
volatile char GPSmsg[ix];
void main(void)
{
init();
while(1)
{
if((strncmp("GPGSV",GPSmsg,5)==0)
{ // if found GPGSV
extract lat and lon etc.
}...
That's what I am asking for help understanding
->Remember that in the C language a string is terminated with a zero so think about how your string comparison will find the end of the message if the terminator is missing.
GPSmsg[ix]= '\0';
#define MAX_SENTENCE_LENGTH 20
volatile char...
I am trying to understand basic logic of GPS program. how the microcontroller read and Parse the GPS data
I have created following pseudocode. I am having difficulty in interrupt service routine. I am looking help to develop interrupt service route
#define MAX_SENTENCE_LENGTH 20
void...
I am intrested to know how do you plan for project where you are going to use embedded operating system. so far I know many people make flochart, state diagram before writing code
If you want to use operating system or RTOS for the project. How do you plan before writing code ?
Do you make...
I am trying to understand what happens if we change priority in code in given link https://www.digikey.com/en/maker/projects/introduction-to-rtos-solution-to-part-2-freertos/b3f84c9c9455439ca2dcb8ccfce9dec5
// task 1: blink an LED at one rate, Hight priority
void toggleLED_1(void *parameter)...
I am trying to understand meaning of following statement shown in page https://en.wikipedia.org/wiki/Process_state
I/O stand for input/ output device. can anyone give at least three real stuation to get idea
you repeated my question to me.
Till now i have not faced the problem in my project where i only need scheduling.
I don't think learning new technology will hurt. That's why I am looking for such project, in this only Preempative Scheduling is allowed.
I also want to ask you a question...
Hi Dora.
I have successfully sent data to PC and received data from PC using Uart Protocol. I have successfully sent data display. I have successfully read the analog input with the help of spi ADC. I have successfully read the analog input with the help of i2c ADC. And tried many more...
I am looking for a real world project that demonstrates Pre-emptive Scheduling. The information I have found on the internet so far only explains the pre-emptive in pieces. I understand what preemptive scheduling is, but I don't know how to apply it for a specific project.
In preemption, the...
My intent is to understand the description given in the Wikipedia page, that's why I showed of my tasks.
The Task in the system can be anything. I have taken some examples of Tasks in my list just to understand the description of page, they all are not related to the actual application, it is...
I have come across the Wikipedia page which explains the theoretical terms but I am having trouble understanding its real example.
https://en.m.wikipedia.org/wiki/Process_state
I just assume some task are (e.g. LED ON, LED OFF, read a button, display a message on an LCD screen, Motor ON...
How is the real time FFT spectrum displayed on the display. There is a total of 1024 samples, then the result of all these samples shown on the screen together, or the result is shown one by one.
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