From 65862dac9bba3f724208ca1b83e75385961418e9 Mon Sep 17 00:00:00 2001
From: Michael Gernoth <michael@gernoth.net>
Date: Thu, 20 Jun 2013 20:52:55 +0200
Subject: [PATCH] don't get confused when more than one packet is received

disable receiver after receiving one packet and reenable
it after reading it from the fifo
---
 culfw/culfw-asksin-fix.diff | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/culfw/culfw-asksin-fix.diff b/culfw/culfw-asksin-fix.diff
index 04dab92..b17fd05 100644
--- a/culfw/culfw-asksin-fix.diff
+++ b/culfw/culfw-asksin-fix.diff
@@ -16,7 +16,7 @@ Index: clib/rf_asksin.c
       0x12, 0x03,
       0x15, 0x34,
 -     0x17, 0x30, // always go into IDLE
-+     0x17, 0x3F, // always go into RX, CCA, ELV uses 0x03
++     0x17, 0x33, // always go into RX after TX, CCA, ELV uses 0x03
       0x18, 0x18,
       0x19, 0x16,
       0x1B, 0x43,
@@ -55,23 +55,26 @@ Index: clib/rf_asksin.c
  }
  
  void
-@@ -97,14 +96,10 @@
+@@ -97,13 +96,13 @@
      }
      
      rssi = cc1100_sendbyte( 0 );
-+    /* LQI = */ cc1100_sendbyte( 0 );
-     
+-    
++
      CC1100_DEASSERT;
  
 -    ccStrobe( CC1100_SFRX  );
 -    ccStrobe( CC1100_SIDLE );
 -    ccStrobe( CC1100_SNOP  );
 -    ccStrobe( CC1100_SRX   );
--
++    while(cc1100_readReg(CC1100_RXBYTES) & 0x7f)
++	    cc1100_readReg( CC1100_RXFIFO );
++ 
++    ccRX();
+ 
      dec[0] = enc[0];
      dec[1] = (~enc[1]) ^ 0x89;
-     
-@@ -113,7 +108,6 @@
+@@ -113,7 +112,6 @@
      
      dec[l] = enc[l] ^ dec[2];
      
@@ -79,7 +82,7 @@ Index: clib/rf_asksin.c
      if (tx_report & REP_BINTIME) {
        
        DC('a');
-@@ -133,24 +127,14 @@
+@@ -133,24 +131,17 @@
      }
  
      return;
@@ -101,16 +104,19 @@ Index: clib/rf_asksin.c
 -       
 -  }
  
-+  if (cc1100_readReg( CC1100_MARCSTATE ) == MARCSTATE_RXFIFO_OVERFLOW) {
++  switch(cc1100_readReg( CC1100_MARCSTATE )) {
++    case MARCSTATE_RXFIFO_OVERFLOW:
 +      ccStrobe( CC1100_SFRX  );
++    case MARCSTATE_IDLE:
 +      ccStrobe( CC1100_SIDLE );
 +      ccStrobe( CC1100_SNOP  );
 +      ccStrobe( CC1100_SRX   );
++      break;
 +  }
  }
  
  void
-@@ -173,20 +157,7 @@
+@@ -173,20 +164,7 @@
      my_delay_ms(3);             // 3ms: Found by trial and error
    }
  
@@ -131,7 +137,7 @@ Index: clib/rf_asksin.c
    enc[0] = dec[0];
    enc[1] = (~dec[1]) ^ 0x89;
  
-@@ -195,6 +166,15 @@
+@@ -195,6 +173,15 @@
    
    enc[l] = dec[l] ^ dec[2];
  
@@ -147,7 +153,7 @@ Index: clib/rf_asksin.c
    // send
    CC1100_ASSERT;
    cc1100_sendbyte(CC1100_WRITE_BURST | CC1100_TXFIFO);
-@@ -205,12 +185,17 @@
+@@ -205,12 +192,17 @@
  
    CC1100_DEASSERT;
  
-- 
2.39.2