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Recent content by ucsam

  1. U

    Some Errors in Hitech C compiler

    Namaste, Hi, everyone its been a long time since i have not posted in this site. Well, here i am with my mystery for you guys to solve. I am writing code for a gadget that would show respective data with time and date. But i am having a long list of error. Please try to help me out in this...
  2. U

    Variable corruption after a statement

    My function doesn't overwrites on the last index so i have the place for null character. The main function is not complete. I am just showing the part where i am having trouble
  3. U

    Variable corruption after a statement

    I can keep the master password constant so i did, but it got worse. I will post the code.
  4. U

    Variable corruption after a statement

    I am writing code for a keypad system. The problem that is occuring is very strange and ridiculous! so here is the problem: When I enter a key, the system would compare it with a predefined user-key key and let me in or out like all keypad system does. But when i once enter the wrong key...
  5. U

    MikroC timer interrupt problem v 1.1

    I am using AT89s51.
  6. U

    MikroC timer interrupt problem v 1.1

    Hey guys i am having a serious problem. The following program compiles successfully but when i turn on the system, there wont be be timer (caused) delay ( which can be set via some switches) after looking for long time, i figured that the timer 0 ISR is not being served. Since, I am new to...
  7. U

    The long run effect of storing data in code memory and its comparison with EEPROM

    I want the save the password in the code memory, but i want to know about the long run effects, I mean will there be any memory leaks. FVM: Sorry bro, I didn't get what you mean too. We were talking about WRITE/ERASE not self programming. I was confused that everytime the system edits the...
  8. U

    The long run effect of storing data in code memory and its comparison with EEPROM

    But i don't think i will be writing and erasing again and again. I will make the circuit, and the system will check the key that i entered with some key and decides other things. By WRITE do u mean, the action that microcontroller does to retrieve the data or the programmer does to download the...
  9. U

    The long run effect of storing data in code memory and its comparison with EEPROM

    Hi, I want to develop a system, where user can enter number of username and password. Since, I use 89S52 and i want to store it in the code memory and retrieve it, but some of my colleges say that storing in CODE memory would bring problem in long run. Is that what happens? Is there anyone who...
  10. U

    USB PIC PGM of 'Robokits India'

    I recently brought a PIC USB PGM from www.robkits.co.in but the company didn't dispatch me any programing software. Is anybody here known about the programing software of Robokits India? I tried to contact the company but they are not replying. I brings a negative effect to the customer. If...
  11. U

    How to use timer2 of 8051 ?

    hey! guys i wanted to use the timer 2 of 8051 to use it as the multiplexing delay for seven segment led display. So guys if anyone of u know how can i use timer 2 of 8051 please give the pseudocode or C code or assembly code will work too. thanks
  12. U

    pic16f877a+uln2003a+relay driver

    of course! go through the datasheet, i think it can drive around 200-500 ma (just guess)
  13. U

    Rechargeable battery question

    You wont get any output if u implement above schematic though you battery will charge. Put the switch across diode In J connector put the input from transformer and J2 to the output to your load
  14. U

    boot loader confusion

    hey! guys if i have a bootloader then does the bootloading needs to be done everytime i turn on and turn off the system? I mean does the code stay there even if i turn off the power?
  15. U

    ps2 keyboard sending the same value twice with 8051

    i have a library that looks after the hardware stuffs i do have a function the asks me whether to take the data on release or on press so thats not my problem. are there any other cases?

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