Afuevu
DIIDevHeads IoT Integration Server
•Created by Afuevu on 12/21/2024 in #code-review
Struggled with a Bug on My Energy Meter Project
Hello everyone, Good day.
I have been battling a bug for almost 24 hours on my Energy meter project and discovered the bug had to do with the "volatile" keyword. So basically there were some variables I declared to be used as counters, I observed that there were times when the system could transmit data over UART and then blink my LED once the counter reached a particular value. Something like
if(timer2_count > 50)
{
}
The condition becomes true and the block of code gets executed. Other times the block of code does not execute. After doing some research and consulting chat GPT, I discovered that the volatile keyword was not used, which was the issue. Funny enough, while I was using STM32 cube ide I never experienced such an issue, but it became an issue while using vs code. I just declared the variable using the volatile keyword, which has been consistent. Has anyone had such an issue before? I"'d like to hear about our experiences with keywords like volatile
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