Samuli Nyman / RFM69

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Fork of RFM69 by B Rey

Files at this revision

API Documentation at this revision

Revision 1:59f91670db51, committed 2018-06-09

Comitter:
samulinyman
Date:
Sat Jun 09 14:12:37 2018 +0000
Parent:
0:db6e4ce9dc02
Commit message:
Changes;

Changed in this revision

RFM69.cpp Show annotated file Show diff for this revision Revisions of this file
RFM69.h Show annotated file Show diff for this revision Revisions of this file 
diff -r db6e4ce9dc02 -r 59f91670db51 RFM69.cpp
--- a/RFM69.cpp	Sun Mar 08 17:13:43 2015 +0000
+++ b/RFM69.cpp	Sat Jun 09 14:12:37 2018 +0000
@@ -97,7 +97,7 @@
     /* 0x25 */ { REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_01 }, // DIO0 is the only IRQ we're using
     /* 0x26 */ { REG_DIOMAPPING2, RF_DIOMAPPING2_CLKOUT_OFF }, // DIO5 ClkOut disable for power saving
     /* 0x28 */ { REG_IRQFLAGS2, RF_IRQFLAGS2_FIFOOVERRUN }, // writing to this bit ensures that the FIFO & status flags are reset
-    /* 0x29 */ { REG_RSSITHRESH, 220 }, // must be set to dBm = (-Sensitivity / 2), default is 0xE4 = 228 so -114dBm
+    /* 0x29 */ { REG_RSSITHRESH, 0xE4 }, // must be set to dBm = (-Sensitivity / 2), default is 0xE4 = 228 so -114dBm
     ///* 0x2D */ { REG_PREAMBLELSB, RF_PREAMBLESIZE_LSB_VALUE } // default 3 preamble bytes 0xAAAAAA
     /* 0x2E */ { REG_SYNCCONFIG, RF_SYNC_ON | RF_SYNC_FIFOFILL_AUTO | RF_SYNC_SIZE_2 | RF_SYNC_TOL_0 },
     /* 0x2F */ { REG_SYNCVALUE1, 0x2D },      // attempt to make this compatible with sync1 byte of RFM12B lib
@@ -505,6 +505,18 @@
     return val;
 }
 
+int16_t RFM69::noise()
+{
+    int16_t rssi = 0;
+    writeReg(REG_RSSICONFIG, RF_RSSI_START);
+    while ((readReg(REG_RSSICONFIG) & RF_RSSI_DONE) == 0x00); // wait for RSSI_Ready
+
+  	rssi = -readReg(REG_RSSIVALUE);
+     rssi >>= 1;
+	  
+	  return rssi;
+}
+
 void RFM69::writeReg(uint8_t addr, uint8_t value)
 {
     select();

diff -r db6e4ce9dc02 -r 59f91670db51 RFM69.h
--- a/RFM69.h	Sun Mar 08 17:13:43 2015 +0000
+++ b/RFM69.h	Sat Jun 09 14:12:37 2018 +0000
@@ -90,6 +90,7 @@
     void sleep();
     uint8_t readTemperature(int8_t calFactor=0); // get CMOS temperature (8bit)
     void rcCalibration(); // calibrate the internal RC oscillator for use in wide temperature variations - see datasheet section [4.3.5. RC Timer Accuracy]
+    int16_t noise();
 
     // allow hacking registers by making these public
     uint8_t readReg(uint8_t addr);