Diff: main.cpp

Revision:

1:2b6cdf97b912

Parent:

0:c793eb8100c9

--- a/main.cpp	Tue Jul 15 09:29:35 2014 +0000
+++ b/main.cpp	Fri Feb 06 15:58:37 2015 +0000
@@ -5,7 +5,7 @@
 //sync word ....callsign
 //don't wait for sync_match!!!!!!!!!!!!!!!
 
-/*
+/*f
 regIrq2(0x28) :
 
 regpacketconfig 1(0x37) :
@@ -18,8 +18,8 @@
 #include "mbed.h"
 #define TIMES 20
 Serial pc(USBTX, USBRX);           // tx, rx
-SPI spi(p11, p12, p13);               // mosi, miso, sclk
-DigitalOut cs(p8);                 //slave select or chip select
+SPI spi(D11, D12, D13);               // mosi, miso, sclk
+DigitalOut cs(D10);                 //slave select or chip select
 
 void writereg(uint8_t reg,uint8_t val)
 {
@@ -51,20 +51,27 @@
     int u = 0;
     int hk_data_len = 240;
     uint8_t hk[240];
+    
+       if (readreg(0x15) == 0xB0) pc.printf("spi connection valid\n");
+    else {pc.printf("error in spi connection\n"); wait(10); }
+    
     //initialization
-    
+    //pc.printf("0x%X",readreg(0x01));
     //Common configuration registers
-    writereg(0x01,0x04);       //sequencer off,standby mode
-    writereg(0x02,0x08);// | 0x01);       //packet, ook, no dc
+    writereg(0x01,0x00);       //sequencer off,standby mode
+    writereg(0x02,0x08);// | 0x01);       //packet, ook, no dc           //0x00 for fsk   //default = 0x08 for ook
     writereg(0x03,0x68);       //1200bps
     writereg(0x04,0x2B);       //1200bps
+    /*writereg(0x03,0x03);       //38.4kbps
+    writereg(0x04,0x41);       //38.4kbps*/
+    
     writereg(0x07,0x6C);       
     writereg(0x08,0xC0);
-    writereg(0x09,0x00);       //try 6C D0 0B for 435 MHZ    //try 6C 40 00 for 432.something            //try E4 C0 00 for 915   //6C D6 73 for 435.1Mhz
+    writereg(0x09,0x00);       //try 6C C0 00 for 435 MHZ    //try 6C 40 00 for 432.something            //try E4 C0 00 for 915   //6C D6 73 for 435.1Mhz
                                // 6D1015 for 436 MHZ
     //rx registers
     writereg(0x18,0x08);       //RegLNA using agc
-    writereg(0x19,0x42);       //Regrxbw (data is successfully received  from 5.2 khz onwards for 1200bps)
+    writereg(0x19,0x51);       //Regrxbw (data is successfully received  from 5.2 khz onwards for 1200bps)
                                //keep it as 0x51 for 83.3kHz, 0x42 for 62.5kHz, 0x49 for 100 kHz, 0x40 for 250khz, 57 for 1.3khz, 56 for 2.6khz  
                                //46 for 3.9khz
     
@@ -73,15 +80,18 @@
     //irq1: modeready, rssi, syncaddressmatch used.
     //irq2: fifonnotempty, payloadready used.
     //rssi thresh is default = -117 dbm
-    writereg(0x29,180);       //rssi_thresh = -110 (0x6E)          //0xB4 for -180       //0x96 for -150dBm
+    writereg(0x29,0xB4);       //rssi_thresh = -110 (0x6E)          //0xB4 for -180       //0x96 for -150dBm
                                //0x78 for -120
     
     //Packet Engine Registers
     writereg(0x2C,0x00);
     writereg(0x2D,0x0A);//preamblesize = 10 bytes
+//    writereg(0x2E,0x80);//sync on , FIFO filling condition : if SyncAddress interrupt occurs
     writereg(0x2E,0x80);//sync on , FIFO filling condition : if SyncAddress interrupt occurs
-    writereg(0x2F,0x5E);//sync word 1
-    writereg(0x37,0x08 | 0x40) ;//| 0x10);//Fixed length, on dc-free, no crc,issue packetready even if crc fails, no address filter
+    writereg(0x2F,0x5e);//sync word 1
+//    writereg(0x30,0x23);//sync word 1
+//    writereg(0x31,0x45);//sync word 1
+    writereg(0x37,0x08| 0x10);//| 0x40);//Fixed length, on dc-free(0x40), no crc(0x10),issue packetready even if crc fails, no address filter
     writereg(0x38,0x00);//payload_length= 0 due to unlimited packet mode
     writereg(0x3C,0x27);//fifothresh is 39 because we want it to be set when it reaches 40
     
@@ -97,14 +107,14 @@
     pc.printf("receiver is on, ready to accept.....\n");
     
     //wait for rssi to cross rssi_thresh
-    while((readreg(0x27)& 0x08) != 0x08);//{pc.printf("w:rssi\n");} 
+    while((readreg(0x27)& 0x08) != 0x08)pc.printf("w:rssi\n"); 
 
     //wait for SyncAddressMatch 
-    while((readreg(0x27) & 0x01) != 0x01);//{pc.printf("w:sync\n");}
+    while((readreg(0x27) & 0x01) != 0x01)pc.printf("w:sync\n");
      
     //pc.printf("receiving.....\n");
     //check for fifo_thresh
-    while((readreg(0x28) & 0x20) != 0x20);//{pc.printf("w:fifo_thresh\n");} 
+    while((readreg(0x28) & 0x20) != 0x20)pc.printf("w:fifo_thresh\n"); 
         
     while(bar == TIMES)//fifo_thresh
     {                
@@ -141,8 +151,8 @@
     for (; u < hk_data_len  ; u++)
     hk[u] = spi.write(0);
     cs = 1;
-    pc.printf("shortbeacon[] : \n");
-    
+    pc.printf("Received data:\n");
+    //for(int i=0;i<240;i++) pc.printf("0x%X",hk[i]);
     // converting uint_8 to bool
     bool shortbeacon[120];
     for(int i = 0; i<120; i++)