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RFM69

RFM69 C library port attempt from this arduino library: https://github.com/LowPowerLab/RFM69 Supports RFM69W, RFM69HW, RFM69CW, RFM69HCW (semtech SX1231, SX1231H)

To be able to use this library:

####Please define in your project these platform specific functions defined as extern in RFM69.h:

  • extern void noInterrupts(); function to disable interrupts
  • extern void interrupts(); function to enable interrupts
  • extern void RFM69_SetCSPin(bool); function to control the GPIO connected to RFM69 chip select (HIGH or LOW)
  • extern bool RFM69_ReadDIO0Pin(void); function to read GPIO connected to RFM69 DIO0 (RFM69 interrupt signalling)
  • extern uint8_t SPI_transfer8(uint8_t); function to transfer 1byte on SPI with readback
  • extern void Serialprint(char*); function to print to serial port a string
  • extern bool Timeout_IsTimeout1(void); function for timeout handling, checks if previously set timeout expired
  • extern void Timeout_SetTimeout1(uint16_t); function for timeout handling, sets a timeout, parameter is in milliseconds (ms)

####Configure SPI before using library functions

  • set SPI CPOL= 0 and CPHA = 0 ( in Motorola/Freescale nomenclature), MSB first
  • maximum 10MHz SCK clock according to RFM69 datasheet