• Dial Tone, ring back tone Generation
    How i can generate these tones from the controller and make controller to suply tones to all sets in case all telephone sets goes off-hook.. I know i have to make a delay of 400Hz for Dial Tone , for...
  • DTMF tone generation
    Hi, I want to generate DTMF tones using 89S52 controller. I am using a crystal of frequency 11.059MHz. Can anybody help to proceed further.
  • dual releases
    I have to maintain this program written by a group that thought that timing was going home at 4:59 not something related to programming. Thus I am dead scared of changing release for the compiling/linking...
  • multi slave in I2C bus
    Please help me at C code for reading time from DS1407 on I2C bus.I am able to R/W data to an EEPROM on the same bus.But when i read the time i get 0xffff for hrs,mins and secs even after initializing...
  • simulating multi boards
    hi i work on n version programming over the controller area network and need at least 4 can transceiver for implementing that(1 for voter, 3 for sending the data) because i am going to simulate the...