# Search results

2. ### Bluetooth Physical Channel, Physical Link and Logical Channel and Logical Link

Hi, I am new to bluetooth and i was going through the bluetooth spec. Few terminology used in the spec is little confusing to me. I could not understand what exactly is a physical channel and physical link. Similary what is logical transport and logical link. Can someone please clarify me...
3. ### How to calculate proportional, integral and differentiation gains for PID control?

I want to implement PID control in C. How to calculate proportional, integral and differentiation gains?? what should be the approach in doing this?
4. ### Absolute and Relative adressing in compiler

what is Absolute and Relative adressing in compiler and when do we need them?
5. ### Question about a 32 bit pointer in embedded C

I have a long *temp and int *temp1(assuming long is 4 bytes and int is 2 bytes and initialized with some memory address) if i want to write 2 bytes into temp1 from temp, i will write as *temp1 = *(int*)temp; what if i want to write 2 bytes into temp from temp1??can i write as *(int*)temp =...
6. ### Why do we use only OSEK in automotive systems?

What makes OSEK special in automotive industry? I mean why can't we use other OS like e-cos or u-cos etc...
7. ### Why do we use only OSEK in automotive systems?

OSEK I found in most of the automotive embedded systems OSEK is used. Why do we use only OSEK in automotive systems? How is it different from other regular RTOS?
8. ### How do we calculate MIPS here?

Re: MIPS I am bit confused with the notation MIPS/MHZ.. Let say if CPU clock is 8MHZ and instruction per clock is 1, then we get 8MIPS. Now, can we say it is 1MIPS/MHZ??? Please correct me if i am wrong..
9. ### How do we calculate MIPS here?

MIPS Recently i had gone though below link: https://en.wikipedia.org/wiki/Million_instructions_per_second#Million_instructions_per_second Here in "Timeline of instructions per second" section different processors along with MIPS is given. How do we calculate them? For example if we take Intel...
10. ### What is a Dhrystone MIPS and how to calculate it?

Re: Dhrystone MIPS I am seeing the new processors performance is expressed in this. I saw TMS570 is supporting more than 250DMIPS. What does 250DMIPS mean?? How do we calculate that?
11. ### What is a Dhrystone MIPS and how to calculate it?

What is Dhrystone MIPS?How do we calculate them? What is the reason for using this? Pl clarify.
12. ### What is the best way of implementing double buffer?

Re: Double Buffer I didn't get you..Could you please explain....
13. ### What is the best way of implementing double buffer?

What is the best way of implementing double buffer? Is it by defining two arrays or by two dimensional arrays? Can anyone please post a sample code for me....
14. ### Where a static variable is stored

If there are stored at the same place as global, why the scope of static variables is limited?? I want to know what additional symbol information the compiler will add to a static variable so that it can distinguish from global variables?
15. ### Where a static variable is stored

Where is a static variable stored in memory?Is it in .bss section?? How compiler distinguishes between global variable and static variable..?
16. ### Patent Pending Architecture

In dual core MCU, both cores are coupled with Patent Pending Architecture. What exactly is this?