Diff: xbee900hp.h

Revision:

9:d4542525b218

Parent:

7:3cb67634fa4e

Child:

10:f559e7af4fe6

--- a/xbee900hp.h	Wed Apr 27 01:19:54 2016 +0000
+++ b/xbee900hp.h	Wed Apr 27 04:40:55 2016 +0000
@@ -12,6 +12,13 @@
 
     /**
     * Initialize the xBee Module
+    *
+    * pin_mosi -> mbed SPI MOSI pin
+    * pin_miso -> mbed SPI MISO pin
+    * pin_sck  -> mbed SPI SCK pin
+    * pin_attn -> Signals that some message from the XBee module is available
+    * pin_rst  -> Resets the XBee module
+    * freq     -> sets the SPI clock frequency. The XBee has a maximum SPI clock rate of 3.5 MHz.
     */
     xbee900hp(PinName pin_mosi,PinName pin_miso,PinName pin_sck,PinName pin_attn, PinName pin_rst, unsigned int freq);
 
@@ -27,27 +34,45 @@
 
     /**
     * Send packet over spi to xBee for TX
+    *
+    * data     -> char array of the message to be sent wirelessly.
+    * length   -> then length of the char array excluding any null termination.
+    * enMesh   -> true enables DigiMesh.
+    *
+    * Returns 0 upon successful completion, else returns 1.
     */
     int sendPacket(char* data, unsigned int length, bool enMesh);
 
     /**
     * Get signal strength of last recieved packet
+    *
+    * Returns RSSI in -dBm units (0x00-0xFF), else returns 1 indicating failure.
     */
     unsigned int getRSSI();
 
     /**
-    * Set the transmission power level
+    * Set the transmission power level.
+    * 0 = +7 dBm, (5 mW)
+    * 1 = +15 dBm, (32 mW)
+    * 2 = +18 dBm, (63 mW)
+    * 3 = +21 dBm, (125 mW)
+    * 4 = +24 dBm, (250 mW)
+    *
+    * Returns 0 upon successful completion, else returns 1.
     */
     int setPower(int value);
 
     /**
-    * Get serial number of xbee module
+    * Get serial number of XBee module
+    *
+    * Returns the XBee's unique 64-bit (0-0xFFFFFFFF) Serial/MAC address, else returns 1.
     */
     unsigned long long getSerial();
 
     /**
     * Wait for and read incoming data packet
-    * Returns the source address if successful, or 0 if it failed.
+    *
+    * Returns the 64-bit (0-0xFFFFFFFF) Serial/MAC address of the sending XBee if successful, or 0 if it failed.
     */
     unsigned long long readPacket(char* data);
 
@@ -58,25 +83,29 @@
 
     /**
     * Check ATTN signal
+    *
+    * Returns the state of the ATTN pin.
+    * NOTE: This pin is inverse logic. (i.e. 0 = message waiting, 1 = no messages availiable)
     */
     int attn();
 
     /**
     * Read raw data in from module
+    *
+    * Returns a single char from the XBee.
+    * NOTE: Check the status of the XBee's ATTN pin to see if data is available first.
     */
-    char debug();
+    char xbee_getc();
 
 private:
     // Setup pin input types.
 
-    // Reset
+    // Reset pin (Pin 5 on XBee)
     DigitalOut _pin_rst;
-    // Asert Pin Use Interrupts for Super Speed
+    // Attention Pin (Pin 19 on XBee
     DigitalIn _pin_attn;
 
-    void readDataISR();
-
-    // SPI
+    // Define SPI connection for the XBee
     SPI _xbeespi;
 
 };