From ac71234587241032871cfb0745471f011fcbb943 Mon Sep 17 00:00:00 2001
From: Othmar Gsenger <otti@realraum.at>
Date: Wed, 14 Dec 2011 01:47:13 +0000
Subject: [PATCH] nearly realy working

---
 rf433rcv/pc/compress.c    |   42 +++++++++++++++++++++--------------
 rf433rcv/pc/decode2.pl    |    6 ++---
 rf433rcv/pc/rawhid_test.c |   16 +++++++++-----
 rf433rcv/teensy/example.c |   54 +++++++++++++++++++++------------------------
 4 files changed, 64 insertions(+), 54 deletions(-)

diff --git a/rf433rcv/pc/compress.c b/rf433rcv/pc/compress.c
index 1e211d5..41f85aa 100644
--- a/rf433rcv/pc/compress.c
+++ b/rf433rcv/pc/compress.c
@@ -1,24 +1,34 @@
 #include <unistd.h>
+#include <stdint.h>
+#include <stdio.h>
 
+#define MAX_RAM 502
 
 void main()
 {
-  unsigned char c,out=0;
-  int count =0;
-  while (read(0,&c,1))
+  unsigned char input[MAX_RAM*8+1];
+  unsigned char output[MAX_RAM];
+  uint16_t i=0;
+  uint16_t len=0;
+  uint16_t len_net=0;
+  for(i=0; i<MAX_RAM;i++)
   {
-    out<<=1;
-    if (c=='1')
-      out |=1;
-    count++;  
-    if (count ==8)
-    {
-      write(1,&out,1);
-      count=0;
-      out=0;
-    }
+    output[i] = 0;
   }
-  out<<=8-count;
-  out |= 0xff>>count;
-  write(1,&out,1);
+
+  len=read(0,input,MAX_RAM*8+1);
+  if (len<1)
+  {
+    perror("read(): ");
+  } else if (len==MAX_RAM*8+1) {
+    printf("File to big");
+  }
+  for(i=0; i<len;i++)
+  {
+    if (input[i]=='1')
+      output[i/8] |= 1<< (i%8);
+  }
+  len_net=htons(len);
+  write(1,&len_net,sizeof(len_net));
+  write(1,output, (len%8)?len/8+1:len/8);
 }
diff --git a/rf433rcv/pc/decode2.pl b/rf433rcv/pc/decode2.pl
index 4d81139..08318e9 100755
--- a/rf433rcv/pc/decode2.pl
+++ b/rf433rcv/pc/decode2.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 use strict;
-print $ARGV[2]-$ARGV[1], "samples\n";
+print STDERR $ARGV[2]-$ARGV[1], "samples\n";
 my @data =  split /,/,<>;
 my @samples = $ARGV[0]..$ARGV[1];
-print join ',', @data[@samples];
-print "\n";
+print join '',@data[@samples];
+print STDERR "\n";
diff --git a/rf433rcv/pc/rawhid_test.c b/rf433rcv/pc/rawhid_test.c
index eaef389..38f3401 100644
--- a/rf433rcv/pc/rawhid_test.c
+++ b/rf433rcv/pc/rawhid_test.c
@@ -17,7 +17,7 @@ static char get_keystroke(void);
 
 void sendstr(char * tosend)
 {
-  rawhid_send(0, tosend, strlen(tosend),100);
+  rawhid_send(0, tosend, strlen(tosend),1000);
 }
 
 int main (int argc, char *argv[])
@@ -40,14 +40,18 @@ int main (int argc, char *argv[])
     FILE * f = fopen (argv[1], "r");
     if (!f)
       return -3;
+    printf("Clearing Buffer\n");  
     sendstr("c"); // clear the buffer  
     buf[0]='f';  
-    size_t len= fread(buf+1, 1, 63, f);
-    for(i=len+1;i<64;i++)
-      buf[i]=0xff;
-    rawhid_send(0, buf, 64, 100); //fill the buffer
+    while ( fread(buf+1, 1, 63, f) )
+    {
+      
+      rawhid_send(0, buf, 64, 1000); //fill the buffer
+      printf("Sending Buffer\n");
+    }
+    printf("Executing Send command\n");
     sendstr("s\x10"); // send 4 times
-    len = rawhid_recv(0, buf, 64, 255);
+    size_t len = rawhid_recv(0, buf, 64, 255);
     for(i=0;i<len;i++)
     {
       printf("%02x ",(unsigned char) buf[i]);
diff --git a/rf433rcv/teensy/example.c b/rf433rcv/teensy/example.c
index 649f6de..7052626 100644
--- a/rf433rcv/teensy/example.c
+++ b/rf433rcv/teensy/example.c
@@ -28,18 +28,18 @@
 #include "usb_rawhid.h"
 
 #define CPU_PRESCALE(n)	(CLKPR = 0x80, CLKPR = (n))
-#define RF_SEND_BUFFER_LEN_MAX 128
+#define RF_SEND_BUFFER_LEN_MAX 502
 volatile uint16_t output_count=0;
 volatile uint8_t active_buffer=0;
 volatile uint16_t send_buffer=0;
 volatile uint8_t capture=0;
-volatile uint16_t rf_send=0; //count of bits in rf_send_buffer that should be sent
-volatile uint16_t rf_send_reload=0; //count of bits in rf_send_buffer that should be sent
-volatile uint8_t rf_send_reload_count=0; // number of repetitions (times rf_send gets reloaded;
+volatile uint16_t rf_send_buf_pos=0; //count of bits in rf_send_buffer that should be sent
+volatile uint16_t rf_send_buf_len=0; //count of bits in rf_send_buffer that should be sent
+volatile uint8_t rf_send_count=0; // number of repetitions (times rf_send gets reloaded;
 uint8_t read_buffer[64]; // buffer for reading usb signals
 uint8_t write_buffer[2][64]; // buffer for writing usb signals
 uint8_t rf_send_buffer[RF_SEND_BUFFER_LEN_MAX]; // buffer for sending rf433 signals
-volatile uint16_t rf_send_buffer_len=0;
+uint16_t rf_send_buf_offset=0;
 
 
 void reset()
@@ -85,10 +85,10 @@ int main(void)
   DDRF|=3;
   PORTF&=~1;
   // Configure timer 0 to generate a timer overflow interrupt every
-  // 200*8 clock cycles, 100us
+  // 100*8 clock cycles, 50us
   TCCR0A = 1<<WGM01;
   TCCR0B = 1<<CS01;
-  OCR0A = 249;
+  OCR0A = 99;
   TCNT0 = 0;
   TIMSK0 = (1<<OCIE0A);
 
@@ -113,37 +113,33 @@ int main(void)
         capture=0;
       else if (read_buffer[0]=='f') //fill send buffer
       {
-        int8_t buffer_pos = 1;
-        while(buffer_pos < r && rf_send_buffer_len<RF_SEND_BUFFER_LEN_MAX)
+        uint8_t buffer_pos = 1;
+        if(!rf_send_buf_offset) {
+          rf_send_buf_len=read_buffer[2] | (read_buffer[1]<<8);   //rf_send_buf_offset*8;
+          buffer_pos+=2;
+        }
+        while(buffer_pos < r && rf_send_buf_offset<RF_SEND_BUFFER_LEN_MAX)
         {
-          rf_send_buffer[rf_send_buffer_len]=read_buffer[buffer_pos];
-          rf_send_buffer_len++;
+          rf_send_buffer[rf_send_buf_offset]=read_buffer[buffer_pos];
+          rf_send_buf_offset++;
           buffer_pos++;
         }
       }
       else if (read_buffer[0]=='c') // clear send buffer
       {
-        rf_send_buffer_len=0;
+        rf_send_buf_offset=0;
       }
       else if (read_buffer[0]=='s') //send
       {
         capture=0;
-        //if (r>2)
-        //  rf_send_reload=rf_send_buffer_len*8-read_buffer[2]; // substract bit offset
-        //else
-        usb_rawhid_send(rf_send_buffer, 145);
-        rf_send=0;
-        rf_send_reload=rf_send_buffer_len*8;
-        rf_send_reload_count=read_buffer[1];  
-        //read_buffer[0]=rf_send_reload;
-        //read_buffer[1]=rf_send_reload>>8;
-        //read_buffer[2]=0;
+        rf_send_buf_pos=0;
+        rf_send_count=read_buffer[1]+1;  
       }
     }
     if (send_buffer)
     {
       send_buffer=0;
-      usb_rawhid_send(write_buffer[active_buffer?0:1], 45);
+      usb_rawhid_send(write_buffer[active_buffer?0:1], 23);
     }
   }
 }
@@ -152,19 +148,19 @@ int main(void)
 ISR(TIMER0_COMPA_vect)
 {
   PORTF^=2;
-  if (rf_send)
+  if (rf_send_count && rf_send_buf_pos<rf_send_buf_len)
   {
-    if ( ( rf_send_buffer[rf_send/8] >> ( (rf_send%8)?8-(rf_send%8):0 ) ) & 1)
+    if ( rf_send_buffer[rf_send_buf_pos/8] & (1<< (rf_send_buf_pos%8)))
     {
      PORTF&=~1;
     } else {
      PORTF|=1;
     }
     //rf_send_buffer[rf_send/8]>>=1;
-    rf_send--;
-  } else if (rf_send_reload_count) {
-    rf_send=rf_send_reload;
-    rf_send_reload_count--;
+    rf_send_buf_pos++;
+  } else if (rf_send_count) {
+    rf_send_buf_pos=0;
+    rf_send_count--;
   } else {
     PORTF&=~1;
     if (capture) {
-- 
1.7.10.4