Diff: BCN.cpp

Revision:

12:af1d7e18b868

Parent:

11:1fdb94ae6563

Child:

13:fb7facaf308b

--- a/BCN.cpp	Wed Apr 13 17:00:25 2016 +0000
+++ b/BCN.cpp	Wed Apr 13 18:34:28 2016 +0000
@@ -1,43 +1,47 @@
+
 #include "BCN.h"
 #include <stdio.h>
 #include "pin_config.h"
+//Check the pin names
+//Takes max 4.3 sec in void FCTN_BCN_TX_MAIN() (temp.calc. + long_beacon + short_beacon) 
 
 Serial pc_bcn(USBTX, USBRX);        //tx,rx
-SPI spi(PIN16, PIN17, PIN15);              // mosi, miso, sclk
-DigitalOut cs(PIN6);                //slave select or chip select
-Timer t;
+SPI spi(PIN16, PIN17, PIN15);              // mosi, miso, sclk 
+DigitalOut cs(PIN87);                //slave select or chip select
 Timer t_i;
+Timeout rf_sl_timeout;
 Ticker loop;
 
 
 //GLOBAL VARIABLES
-uint8_t BCN_INIT_STATUS;
-uint8_t BCN_TX_MAIN_STATUS;
-uint8_t BCN_TX_STATUS;
+uint8_t BCN_INIT_STATUS = 0;
+uint8_t BCN_TX_MAIN_STATUS = 0;
+uint8_t BCN_TX_STATUS = 0;
 uint8_t BCN_TX_EN = 1;              //hardcoding for now    //check where is this variable toggled??
-uint8_t BCN_FEN = 1;                //write this to non-erasable memory.
+uint8_t BCN_FEN = 0;                //hardcoding for now    //write this value to flash
 uint8_t BCN_STANDBY = 0;            //hardcoding for now    //check where is this variable toggled??
-uint8_t BCN_TS_BUFFER;              // For Temperature 
+uint8_t BCN_TS_BUFFER = 0;              // For Temperature 
+uint8_t BCN_FAIL_COUNT=0;
 
-uint8_t BCN_FAIL_COUNT=0;           //bcn fail count added
-
-void P_BCN_INIT()
+void FCTN_BCN_INIT()
 {
-    pc_bcn.printf("P_BCN_INIT\n");
+    pc_bcn.printf("FCTN_BCN_INIT\n");
     BCN_INIT_STATUS = 1;
+    if(BCN_FEN == 0)
+        rf_sl_timeout.attach(&FCTN_BCN_FEN, 30);
     Init_BEACON_HW();
-    if (BCN_FEN == 0)
-        t.start();//Start the timer for RF_Silence
     BCN_INIT_STATUS = 0;
 }
-void P_BCN_FEN()
+void FCTN_BCN_FEN()
 {
-    pc_bcn.printf("P_FEN\n");
+    pc_bcn.printf("FCTN_FEN\n");
     BCN_FEN = 1;//write this value to flash
 }
-void P_BCN_TX_MAIN()
+void FCTN_BCN_TX_MAIN()
 {
-    pc_bcn.printf("P_BCN_TX_MAIN\n");
+    pc_bcn.printf("FCTN_BCN_TX_MAIN\n");
+    t_i.start();
+    int begin = t_i.read_us();
     BCN_TX_MAIN_STATUS = 1;
     
     if(BCN_FEN == 1)
@@ -58,13 +62,8 @@
             else
             {       
                     //transmit short beacon and long beacon
-                    t_i.start();
-                    int begin = t_i.read_us();
-                    SHORT_BCN_TX();
+                    //SHORT_BCN_TX();
                     LONG_BCN_TX();
-                    t_i.stop();
-                    int end = t_i.read_us();
-                    pc_bcn.printf("The time required for short and long is %d seconds\r\n", end-begin);
                     
                     if(Check_ACK_RECEIVED() == 1)
                     {
@@ -91,6 +90,10 @@
         Set_BCN_TX_STATUS(BCN_RF_SILENCE);  //Window of RF Silence: None of the Txs should be on.
         BCN_TX_MAIN_STATUS = 0;
     }
+    t_i.stop();
+    int end = t_i.read_us();
+    pc_bcn.printf("The time required for FCTN_BCN_TX_MAIN is %d useconds\r\n", end-begin);
+    
 }
 
 void Set_BCN_TX_STATUS(uint8_t STATUS)
@@ -101,9 +104,10 @@
 uint8_t check_Temperature()
 {   
     uint8_t temperature;
-    writereg(RF22_REG_0F_ADC_CONFIGURATION,0x80);            
+    writereg(RF22_REG_0F_ADC_CONFIGURATION,0x00);            
     writereg(RF22_REG_12_Temperature_Sensor_Calibration,0x20);
-    wait(1);
+    writereg(RF22_REG_0F_ADC_CONFIGURATION,0x80);
+    wait(0.1);
     temperature = readreg(RF22_REG_11_ADC_Value);
     temperature = (float)temperature*0.5 - 64;
     return temperature;
@@ -112,18 +116,13 @@
 void SHORT_BCN_TX()
 {
     writereg(RF22_REG_6E_TX_DATA_RATE,0x01);
-    writereg(RF22_REG_6F_TX_DATA_RATE,0x4F);//160bps
-    writereg(RF22_REG_3E_PACKET_LENGTH,SHORT_TX_DATA); //short packet length
-    /*
-    init();
-    //init complete
-    pc_bcn.printf("init complete.....press t to send\n");
-    while(pc_bcn.getc()=='t')
-    {   */
-    //button.rise(&interrupt_func);         //interrupt enabled ( rising edge of pin 9)
-    wait(0.02);                                                           // pl. update this value  or even avoid it!!!                  
-    int i=0;
+    writereg(RF22_REG_6F_TX_DATA_RATE,0x50);//160bps
+    writereg(RF22_REG_3E_PACKET_LENGTH,SHORT_TX_DATA); //short packet length 
+    wait(0.02);      
+                                                                           
+    uint32_t timeout_count = 10e5;
     //extract values from short_beacon[]
+    
     struct Short_beacon
     {
         uint8_t Voltage[1];
@@ -136,20 +135,13 @@
     //filling hk data
     //uint8_t short_beacon[] = { 0xAB, 0x8A, 0xE2, 0xBB, 0xB8, 0xA2, 0x8E,Shortbeacon.Voltage[0],Shortbeacon.AngularSpeed[0], Shortbeacon.AngularSpeed[1],Shortbeacon.SubsystemStatus[0],Shortbeacon.Temp[0],Shortbeacon.Temp[1],Shortbeacon.Temp[2],Shortbeacon.ErrorFlag[0]};
     uint8_t short_beacon[] = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,Shortbeacon.Voltage[0],Shortbeacon.AngularSpeed[0], Shortbeacon.AngularSpeed[1],Shortbeacon.SubsystemStatus[0],Shortbeacon.Temp[0],Shortbeacon.Temp[1],Shortbeacon.Temp[2],Shortbeacon.ErrorFlag[0]};
-    
-    //uint8_t short_beacon[15];
-//    for(int i = 0;i<15;i++)
-//    {
-//        short_beacon[i] = 0xAA;
-//    }
-    
-    //writereg(RF22_REG_07_OPERATING_MODE1,0x01);        //ready mode       ??    
+           
     clearTxBuf();     
     //writing data first time
     int byte = 0;
     cs = 0;
     spi.write(0xFF);   
-    pc_bcn.printf("line 151");
+
     for (int byte_counter = 0; byte_counter <15 ; byte_counter++)
     {
         for(int j = 3; j >= 0 ; j--)
@@ -175,43 +167,42 @@
     }   
     
     cs = 1;
-    pc_bcn.printf("line 177\n");
+    
     //Set to Tx mode
-    writereg(RF22_REG_07_OPERATING_MODE1,0x09);
-      
+    writereg(RF22_REG_07_OPERATING_MODE1,0x08);//*
+    wait(0.1);  
     //Check for fifoThresh
-    while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20);
-    //pc_bcn.printf("fifothresh1?\n");
-    pc_bcn.printf("line 184\n");
-    //rf22.waitPacketSent();
-    while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) != 0x04);
-        //pc_bcn.printf(" chk pkt sent!\r\n");     
-    pc_bcn.printf("Short packet sent\r\n");
+    while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;
+    timeout_count=10e5;
+    
+    //Check for packet_sent
+    while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)break;
+    
+    //pc_bcn.printf("Short packet sent\r\n");
     
     writereg(RF22_REG_07_OPERATING_MODE1,0x00);        //standby mode
     
 }
 void LONG_BCN_TX()
 {
-    writereg(RF22_REG_6E_TX_DATA_RATE,0x04);
-    writereg(RF22_REG_6F_TX_DATA_RATE,0xEA);//600 bps
+    writereg(RF22_REG_6E_TX_DATA_RATE,0x08);
+    writereg(RF22_REG_6F_TX_DATA_RATE,0x31);//1000 bps
     writereg(RF22_REG_3E_PACKET_LENGTH,LONG_TX_DATA); //long packet length
     wait(0.02);                                                           
-   
+    uint32_t timeout_count=10e5;
    
     //get long_beacon array
     
-    uint8_t Long_beacon[75];
-    for(int i = 0;i<75;i++)
+    uint8_t Long_beacon[125];
+    for(int i = 0;i<125;)
     {
-        Long_beacon[i] = 0xA0;
+        Long_beacon[i++] = 0xAA;
     }
    
    
    
     
     //setModeIdle();
-    writereg(RF22_REG_07_OPERATING_MODE1,0x01);        //ready mode    
     clearTxBuf();     
     //writing data first time
     cs = 0;
@@ -223,32 +214,35 @@
     cs = 1;
     
     //Set to Tx mode
-    writereg(RF22_REG_07_OPERATING_MODE1,0x09);
-
+    writereg(RF22_REG_07_OPERATING_MODE1,0x08);//*
+    wait(0.1);
+    
     //Check for fifoThresh
-    while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20);
+    while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;
+    timeout_count=10e5;
     
     cs = 0;
     spi.write(0xFF);   
-    for(int i=60; i<75;i++)
+    for(int i=60; i<125;i++)
     {
         spi.write(Long_beacon[i]);
     }
     cs = 1;
-    wait(0.01);
+    wait(0.1);
     //Check for fifoThresh
-    while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) != 0x20);
+    while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x20) == 0x20)break;
+    timeout_count=10e5;
     
     //Check for packetsent interrupt
-    while((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) != 0x04);
+    while(timeout_count--)if((readreg(RF22_REG_03_INTERRUPT_STATUS1) & 0x04) == 0x04)break;
          
-    pc_bcn.printf("Long packet sent\r\n");
+    //pc_bcn.printf("Long packet sent\r\n");
     
     writereg(RF22_REG_07_OPERATING_MODE1,0x00);        //standby mode
 }
-void reset_uC()
+void reset_rfm()
 {
-    P_BCN_INIT();
+    FCTN_BCN_INIT();
 }
 void writereg(uint8_t reg,uint8_t val)
 {
@@ -265,7 +259,7 @@
             }
             else if(count == 5)
             {
-                reset_uC(), printf("reg = 0x%X\n",reg);break;
+                reset_rfm(), printf("reg = 0x%X\n",reg);break;
             }
         }
         else
@@ -281,19 +275,13 @@
     writereg(RF22_REG_08_OPERATING_MODE2,0x01);
     writereg(RF22_REG_08_OPERATING_MODE2,0x00);
 }
-uint8_t setFrequency(double centre,float afcPullInRange)
+uint8_t setFrequency(double centre)
 {
     uint8_t fbsel = 0x40;
-    uint8_t afclimiter;
     if (centre >= 480.0) {
         centre /= 2;
         fbsel |= 0x20;
-        afclimiter = afcPullInRange * 1000000.0 / 1250.0;
-    } else {
-        if (afcPullInRange < 0.0 || afcPullInRange > 0.159375)
-            return false;
-        afclimiter = afcPullInRange * 1000000.0 / 625.0;
-    }
+    } 
     centre /= 10.0;
     double integerPart = floor(centre);
     double fractionalPart = centre - integerPart;
@@ -306,14 +294,15 @@
     writereg(RF22_REG_75_FREQUENCY_BAND_SELECT, fbsel);
     writereg(RF22_REG_76_NOMINAL_CARRIER_FREQUENCY1, fc >> 8);
     writereg(RF22_REG_77_NOMINAL_CARRIER_FREQUENCY0, fc & 0xff);
-    writereg(RF22_REG_2A_AFC_LIMITER, afclimiter);
     return 0;
 }
 
 
 void Init_BEACON_HW()
 {
+    wait(0.1);
     cs=1;                          // chip must be deselected
+    wait(0.1);
     spi.format(8,0);
     spi.frequency(10000000);       //10MHz SCLK
     
@@ -322,11 +311,11 @@
         pc_bcn.printf("spi connection valid\r\n");
     else
         {pc_bcn.printf("error in spi connection\r\n");
-        reset_uC();
+        reset_rfm();
         }
     
     writereg(RF22_REG_07_OPERATING_MODE1,0x80);        //sw_reset
-    wait(1);                    //takes time to reset                                  
+    wait(0.1);                    //takes time to reset                                  
 
     clearTxBuf();                                                                                                                        
     
@@ -344,28 +333,28 @@
     writereg(RF22_REG_0B_GPIO_CONFIGURATION0,0x15); // TX state                        
     writereg(RF22_REG_0C_GPIO_CONFIGURATION1,0x12); // RX state                        
 
-    setFrequency(435.0,05);
+    setFrequency(435.0);
 
     if((readreg(RF22_REG_02_DEVICE_STATUS)& 0x08)!= 0x00)
         {
-            //pc_bcn.printf("frequency not set properly\r\n");
-            reset_uC();
+            pc_bcn.printf("frequency not set properly\r\n");
+            reset_rfm();
         }
 
     //set Modem Configuration
-    writereg(RF22_REG_1C_IF_FILTER_BANDWIDTH,0xdf);
-    writereg(RF22_REG_1F_CLOCK_RECOVERY_GEARSHIFT_OVERRIDE,0x03);
-    writereg(RF22_REG_20_CLOCK_RECOVERY_OVERSAMPLING_RATE,0x39);
-    writereg(RF22_REG_21_CLOCK_RECOVERY_OFFSET2,0x20);                     
-    writereg(RF22_REG_22_CLOCK_RECOVERY_OFFSET1,0x68);           //updated 20 to 25 reg values from excel sheet for 1.2 Khz freq. deviation,fsk
-    writereg(RF22_REG_23_CLOCK_RECOVERY_OFFSET0,0xdc);
-    writereg(RF22_REG_24_CLOCK_RECOVERY_TIMING_LOOP_GAIN1,0x00);
-    writereg(RF22_REG_25_CLOCK_RECOVERY_TIMING_LOOP_GAIN0,0x6B);
-    writereg(RF22_REG_2C_OOK_COUNTER_VALUE_1,0x2C);
-    writereg(RF22_REG_2D_OOK_COUNTER_VALUE_2,0x11);    //not required for fsk (OOK counter value)
-    writereg(RF22_REG_2E_SLICER_PEAK_HOLD,0x2A);         //??
+    //writereg(RF22_REG_1C_IF_FILTER_BANDWIDTH,0xdf);
+    //writereg(RF22_REG_1F_CLOCK_RECOVERY_GEARSHIFT_OVERRIDE,0x03);
+    //writereg(RF22_REG_20_CLOCK_RECOVERY_OVERSAMPLING_RATE,0x39);
+    //writereg(RF22_REG_21_CLOCK_RECOVERY_OFFSET2,0x20);                     
+    //writereg(RF22_REG_22_CLOCK_RECOVERY_OFFSET1,0x68);           //updated 20 to 25 reg values from excel sheet for 1.2 Khz freq. deviation,fsk
+    //writereg(RF22_REG_23_CLOCK_RECOVERY_OFFSET0,0xdc);
+    //writereg(RF22_REG_24_CLOCK_RECOVERY_TIMING_LOOP_GAIN1,0x00);
+    //writereg(RF22_REG_25_CLOCK_RECOVERY_TIMING_LOOP_GAIN0,0x6B);
+    //writereg(RF22_REG_2C_OOK_COUNTER_VALUE_1,0x2C);
+    //writereg(RF22_REG_2D_OOK_COUNTER_VALUE_2,0x11);    //not required for fsk (OOK counter value)
+    //writereg(RF22_REG_2E_SLICER_PEAK_HOLD,0x2A);         //??
     writereg(RF22_REG_58,0x80);
-    writereg(RF22_REG_69_AGC_OVERRIDE1,0x60);
+    //writereg(RF22_REG_69_AGC_OVERRIDE1,0x60);
     
     //Data rate set later
       
@@ -390,16 +379,3 @@
         return 0;
     }
 }
-/*int main()
-{
-    P_BCN_INIT(); 
-    
-    loop.attach(&P_BCN_TX_MAIN, 10.0);
-    
-    while(t.read() < RF_SILENCE_TIME);
-        
-    P_BCN_FEN();
-    
-    while(1);
-    
-}*/
\ No newline at end of file