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Recent content by unaided

  1. U

    Ethernet connectivity

    I think you can. TCP/IP is based on raw ethernet frame. You just need to write a simple protocol for your application.
  2. U

    Problem with writing into the mc of ISP programmer

    Re: error in ISP?? Hi. What your system? Maybe you can try to set your parallel port in the same mode with your friend. There are three modes: spp,epp,ecp.
  3. U

    Maximum and Minimum Value

    Hi What the define of adc_result? If it is an array, then this line: adc_result = 256*ADRESH + ADRESL; You assign an int to a pointer. I think you may want like this: *(adc_result+i) = 256*ADRESH + ADRESL;
  4. U

    Store audio in WAV fomat on MMC/SD card

    Hi, you should encode audio in wav format, then save the file to sd card. Usually you should use an encode chip to do this.
  5. U

    external flash memory

    Hi. You should see the datasheet of flash chip, get the write and read time scheduling. I think it is just like most peripheral equipment of atmega128.
  6. U

    pic 18f4550 USB malfunctioned

    Hi. I think both hardware and software can cause this problem. You shoud use some software like bushound to get data on usb bus. And see if the PC get right usb device describe table.
  7. U

    Client TCP LwIP + stm32f107

    Hi, I think you should see api document on LWIP. You can see: https://www.sics.se/~adam/lwip/doc/lwip.pdf
  8. U

    file transfer through ftp..help needed

    Hi, Is your connection real usb or usb to tcp/ip?
  9. U

    wireless protocol for communication between microcontrollers

    Hi, What transfer speed do you want? If you just use low speed, maybe zigbee is fit your project.
  10. U

    Data File compression

    Hi, I think you can't use compress to save half space. You must to add large space flash, or other storage media like sd card.
  11. U

    Access files over USB on embedded board

    Hi I think that this is a method. Use usb lan controller chip, like ax88772. Then use nfs to mount board file system to pc. And now, you can manage files just like local pc.
  12. U

    Running LED display using 8052

    Running LED display Hi Use uart to get message from vb software on pc. Then display on led matrix.
  13. U

    gpio pin not going low

    Hi You should chek hardware if there is high level voltage connect to this pin.
  14. U

    Send Signal from PIC2550 to PC via USB

    Hi, it is possible. You can add a usb chip to PIC2550. Just like PDIUSBD12.
  15. U

    PIC16F84A communicate with PC to control camera

    Hi, I think first Pc open port and wait command from PIC. When Pc get command, then turns on camera and begin image processing and at last send data to PIC. So in this project, you should use C++ to serial comunication program. And also the camera should provide control API to C++. And image...
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