By placing void in front of any function definition, you make it so that the function does not need to return a value. For example: void test(void) { … } Would not return anything. 3 solved how return keyword work in main function or any user defined function? [closed]
The return keyword is an important part of any function, whether it is a main function or a user-defined function. It is used to return a value from a function to the calling program. The return keyword is used to indicate the end of a function and to return a value to the calling program. … Read more
how to clear pointer variable which is holding start of memory location that needs to be cleared for 20 bytes of data from starting location [closed] solved how to clear pointer variable which is holding start of memory location that needs to be cleared for 20 bytes of data from starting location [closed]
1) the count is number of milliseconds that are remaining for the timer to expire. This time seems to be relative to the previous timer and gets decremented every millisecond only for the topmost timer. Other timers’ count value remains untouched in the ISR. 2) because when second timer expires (its count goes down to … Read more
You are trying too hard. Here’s how typecasting should look void typecasting(unsigned char test[SIZE], int array[SIZE]) { for (int i = 0; i < SIZE; ++i) array[i] = test[i]; } Your code might be suitable if you were converting from a C string, i.e. if your original test array was char test[] = “34,201,190,154,8,194,2,6,114,88,45,76,123,87,25,23,…”; So … Read more
I am trying to display a float value on an lcd , for the same I have to first convert it to a string.But it just doesn’t work [closed] solved I am trying to display a float value on an lcd , for the same I have to first convert it to a string.But it … Read more
Do the two lines have same effect of writing one to data register B ? No. DDRB = 0b00000001; writes one to bit-0 and zero to bits 1 to 7, while: DDRB |= 0b00000001; is a read-modify-write operation equivalent to: DDRB = DDRB | 0b00000001; so it writes a one to bit-0 as before and … Read more
As you’ve probably realized by now, VHDL is not a programming language but a Hardware Description Language. It is very easy to get confused about the terminology cause HDL doesn’t work like software. Simulation consists of using a simulator (surprise) such as ModelSim to interpret your VHDL code while stimulating inputs to see what the … Read more
Of course you do.volatile isn’t a prerogative of an ISR, it has a specific definition in the C11 standard: An object that has volatile-qualified type may be modified in ways unknown to the implementation or have other unknown side effects. Therefore any expression referring to such an object shall be evaluated strictly according to the … Read more
sprintf will ony fail during an interrupt if it is called again during that interrupt (assuming it uses global variables that are re-used; would it use only stack variables, then it is re-entrant). So if your interrupt handler is calling sprintf and during that call a new, same or higher priority interrupt occurs then it … Read more