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Recent content by ewertonluiz

  1. E

    SIM900 Customer Flash Loader

    Can I view your machine through the team viewer?
  2. E

    SIM900 Customer Flash Loader

    are you sending AT (upper case) or at (lower case)?
  3. E

    SIM900 Customer Flash Loader

    Samsung is the flash memory used in this module, another one uses ST flash memory. There are differences in the firmware.
  4. E

    SIM900 Customer Flash Loader

    The RAM is loaded in 115200, but the ROM is sent in the selected speed. Before to send the app to module, I set the baudrate to 115200 (AT+IPR=115200). It's not necessary but I prefer to do it. About the power key, you just need hold it during the RAM Loader process, after it can be released...
  5. E

    SIM900 Customer Flash Loader

    Hi, I'm reading this topic about a week. Now I can compile using RVCT and send the code to SIM900. But the ARM Developer Suite (ADS) is very expensive, about USD2.000,00. I want to use GCC. Because it is a Academic propuse. As I could see in SIM900DevIDE\EmbatSIM\gsmos\tools\app_make_inc_s...

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