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// ######################## SPI - FlightCtrl ###################
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// ######################## SPI - FlightCtrl ###################
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#include "main.h"
2
#include "main.h"
3
 
3
 
4
 
4
 
5
struct str_ToNaviCtrl_Version   ToNaviCtrl_Version;
5
struct str_ToNaviCtrl_Version   ToNaviCtrl_Version;
6
struct str_FromNaviCtrl_Version   FromNaviCtrl_Version;
6
struct str_FromNaviCtrl_Version   FromNaviCtrl_Version;
7
struct str_ToNaviCtrl_Value   ToNaviCtrl_Value;
7
struct str_ToNaviCtrl_Value   ToNaviCtrl_Value;
8
struct str_FromNaviCtrl_Value   FromNaviCtrl_Value;
8
struct str_FromNaviCtrl_Value   FromNaviCtrl_Value;
9
 
9
 
10
unsigned char              SPI_BufferIndex;
10
unsigned char              SPI_BufferIndex;
11
unsigned char              SPI_RxBufferIndex;
11
unsigned char              SPI_RxBufferIndex;
12
 
12
 
13
volatile unsigned char     SPI_Buffer[sizeof(FromNaviCtrl_Value)];
13
volatile unsigned char     SPI_Buffer[sizeof(FromNaviCtrl_Value)];
14
unsigned char *SPI_TX_Buffer, *ToNaviCtrl_Chksum;
14
unsigned char *SPI_TX_Buffer, *ToNaviCtrl_Chksum;
15
 
15
 
16
unsigned char SPITransferCompleted, SPI_ChkSum;
16
unsigned char SPITransferCompleted, SPI_ChkSum;
-
 
17
unsigned char SPI_RxDataValid;
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18
 
17
#ifdef USE_SPI_COMMUNICATION
19
#ifdef USE_SPI_COMMUNICATION
18
 
20
 
19
//------------------------------------------------------
21
//------------------------------------------------------
20
void SPI_MasterInit(void)
22
void SPI_MasterInit(void)
21
{
23
{
22
  DDR_SPI |= (1<<DD_MOSI)|(1<<DD_SCK);    // Set MOSI and SCK output, all others input 
24
  DDR_SPI |= (1<<DD_MOSI)|(1<<DD_SCK);    // Set MOSI and SCK output, all others input 
23
  SLAVE_SELECT_DDR_PORT |= (1 << SPI_SLAVE_SELECT);
25
  SLAVE_SELECT_DDR_PORT |= (1 << SPI_SLAVE_SELECT);
24
   
26
   
25
  SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR1)|(0<<SPR0)|(0<<SPIE);   // Enable SPI, Master, set clock rate fck/64 
27
  SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR1)|(0<<SPR0)|(0<<SPIE);   // Enable SPI, Master, set clock rate fck/64 
26
  SPSR = 0;  // SPI2X
28
  SPSR = 0;  // SPI2X
27
 
29
 
28
  SLAVE_SELECT_PORT |=  (1 << SPI_SLAVE_SELECT);
30
  SLAVE_SELECT_PORT |=  (1 << SPI_SLAVE_SELECT);
29
  SPITransferCompleted = 1;
31
  SPITransferCompleted = 1;
30
 
32
 
31
  //SPDR = 0x00;  // dummy write
33
  //SPDR = 0x00;  // dummy write
32
 
34
 
33
  ToNaviCtrl_Value.Sync1 = 0x81;
35
  ToNaviCtrl_Value.Sync1 = 0xAA;
34
  ToNaviCtrl_Value.Sync2 = 0x55;
36
  ToNaviCtrl_Value.Sync2 = 0x83;
35
 
37
 
36
  ToNaviCtrl_Value.Command = SPI_CMD_VALUE;
38
  ToNaviCtrl_Value.Command = SPI_CMD_VALUE;
37
  ToNaviCtrl_Value.IntegralNick = 12345;
39
  ToNaviCtrl_Value.IntegralNick = 12345;
38
  ToNaviCtrl_Value.IntegralRoll = 56789;
40
  ToNaviCtrl_Value.IntegralRoll = 56789;
39
  ToNaviCtrl_Value.StickNick = 100;
41
  ToNaviCtrl_Value.StickNick = 100;
40
  ToNaviCtrl_Value.StickRoll = 150;//(char) StickRoll;
42
  ToNaviCtrl_Value.StickRoll = 150;//(char) StickRoll;
41
  ToNaviCtrl_Value.StickGier = 200;//(char) StickGier;
43
  ToNaviCtrl_Value.StickGier = 200;//(char) StickGier;
42
 
44
   
-
 
45
  SPI_RxDataValid = 0;
43
}
46
}
44
 
47
 
45
//------------------------------------------------------
48
//------------------------------------------------------
46
void SPI_StartTransmitPacket(unsigned char command)
49
void SPI_StartTransmitPacket(unsigned char command)
47
{
50
{
48
   //if ((SLAVE_SELECT_PORT & (1 << SPI_SLAVE_SELECT)) == 0) return;    // transfer of prev. packet not completed
51
   //if ((SLAVE_SELECT_PORT & (1 << SPI_SLAVE_SELECT)) == 0) return;    // transfer of prev. packet not completed
49
   if (!SPITransferCompleted) return;
52
   if (!SPITransferCompleted) return;
50
   //if (!(SPSR & (1 << SPIF))) return;
53
   //if (!(SPSR & (1 << SPIF))) return;
51
   _delay_us(30);
54
   _delay_us(30);
52
   
55
   
53
   SLAVE_SELECT_PORT &=  ~(1 << SPI_SLAVE_SELECT);  // SelectSlave
56
   SLAVE_SELECT_PORT &=  ~(1 << SPI_SLAVE_SELECT);  // SelectSlave
54
   
57
   
55
   switch(command)
58
   switch(command)
56
   {
59
   {
57
     case SPI_CMD_VERSION: SPI_TX_Buffer  = (unsigned char *) &ToNaviCtrl_Version;
60
     case SPI_CMD_VERSION: SPI_TX_Buffer  = (unsigned char *) &ToNaviCtrl_Version;
58
                                                   ToNaviCtrl_Chksum = (unsigned char *) &ToNaviCtrl_Version.Chksum;
61
                                                   ToNaviCtrl_Chksum = (unsigned char *) &ToNaviCtrl_Version.Chksum;
59
            break;       
62
            break;       
60
       
63
       
61
         case SPI_CMD_VALUE: SPI_TX_Buffer = (unsigned char *) &ToNaviCtrl_Value;
64
         case SPI_CMD_VALUE: SPI_TX_Buffer = (unsigned char *) &ToNaviCtrl_Value;
62
                             ToNaviCtrl_Chksum = (unsigned char *) &ToNaviCtrl_Value.Chksum;
65
                             ToNaviCtrl_Chksum = (unsigned char *) &ToNaviCtrl_Value.Chksum;
63
            break;
66
            break;
64
 
67
 
65
   }
68
   }
66
   
69
   
67
   
70
   
68
   SPITransferCompleted = 0;
71
   SPITransferCompleted = 0;
69
   UpdateSPI_Buffer();                              // update buffer
72
   UpdateSPI_Buffer();                              // update buffer
70
   SPI_BufferIndex = 1;
73
   SPI_BufferIndex = 1;
71
  //ebugOut.Analog[16]++; 
74
  //ebugOut.Analog[16]++; 
72
   // -- Debug-Output ---
75
   // -- Debug-Output ---
73
   //----
76
   //----
74
   asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
77
   asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
75
   asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
78
   asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
76
   asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
79
   asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
77
   SPDR = ToNaviCtrl_Value.Sync1;                  // Start transmission 
80
   SPDR = ToNaviCtrl_Value.Sync1;                  // Start transmission 
78
   *ToNaviCtrl_Chksum = ToNaviCtrl_Value.Sync1;
81
   *ToNaviCtrl_Chksum = ToNaviCtrl_Value.Sync1;
79
//     SLAVE_SELECT_PORT |=  (1 << SPI_SLAVE_SELECT);   // DeselectSlave
82
//     SLAVE_SELECT_PORT |=  (1 << SPI_SLAVE_SELECT);   // DeselectSlave
80
 
83
 
81
}
84
}
82
 
85
 
83
//------------------------------------------------------
86
//------------------------------------------------------
84
//SIGNAL(SIG_SPI)
87
//SIGNAL(SIG_SPI)
85
void SPI_TransmitByte(void)
88
void SPI_TransmitByte(void)
86
{
89
{
87
   static unsigned char SPI_RXState = 0;
90
   static unsigned char SPI_RXState = 0;
88
   unsigned char rxdata;
91
   unsigned char rxdata;
89
   static unsigned char rxchksum;
92
   static unsigned char rxchksum;
90
   
93
   
91
   if (SPITransferCompleted) return;
94
   if (SPITransferCompleted) return;
92
   if (!(SPSR & (1 << SPIF))) return;
95
   if (!(SPSR & (1 << SPIF))) return;
93
   
96
   
94
  _delay_us(30);
97
  _delay_us(30);
95
   
98
   
96
  SLAVE_SELECT_PORT |=  (1 << SPI_SLAVE_SELECT);   // DeselectSlave
99
  SLAVE_SELECT_PORT |=  (1 << SPI_SLAVE_SELECT);   // DeselectSlave
97
 
100
 
98
  rxdata = SPDR;
101
  rxdata = SPDR;
99
  switch ( SPI_RXState)
102
  switch ( SPI_RXState)
100
  {
103
  {
101
  case 0:
104
  case 0:
102
           
105
           
103
                        SPI_RxBufferIndex = 0;
106
                        SPI_RxBufferIndex = 0;
104
                        //DebugOut.Analog[17]++;
107
                        //DebugOut.Analog[17]++;
105
                        rxchksum = rxdata;  
108
                        rxchksum = rxdata;  
106
                        if (rxdata == 0x81 )  { SPI_RXState  = 1;  }   // 1. Syncbyte ok 
109
                        if (rxdata == 0x81 )  { SPI_RXState  = 1;  }   // 1. Syncbyte ok 
107
                       
110
                       
108
           break;
111
           break;
109
 
112
 
110
   case 1:
113
   case 1:
111
                    if (rxdata == 0x55) { rxchksum += rxdata; SPI_RXState  = 2;  }   // 2. Syncbyte ok 
114
                    if (rxdata == 0x55) { rxchksum += rxdata; SPI_RXState  = 2;  }   // 2. Syncbyte ok 
112
                 else SPI_RXState  = 0;    
115
                 else SPI_RXState  = 0;    
113
                        //DebugOut.Analog[18]++;
116
                        //DebugOut.Analog[18]++;
114
           break;      
117
           break;      
115
           
118
           
116
   case 2:
119
   case 2:
117
                   SPI_Buffer[SPI_RxBufferIndex++]= rxdata;             // get data
120
                   SPI_Buffer[SPI_RxBufferIndex++]= rxdata;             // get data
118
           //DebugOut.Analog[19]++;
121
           //DebugOut.Analog[19]++;
119
           if (SPI_RxBufferIndex >= sizeof(FromNaviCtrl_Value))
122
           if (SPI_RxBufferIndex >= sizeof(FromNaviCtrl_Value))
120
                   {  
123
                   {  
121
                         
124
                         
122
                if (rxdata == rxchksum)
125
                if (rxdata == rxchksum)
123
                        {
126
                        {
124
                  unsigned char *ptr = (unsigned char *)&FromNaviCtrl_Value;
127
                  unsigned char *ptr = (unsigned char *)&FromNaviCtrl_Value;
125
     
128
     
126
                          memcpy(ptr, (unsigned char *) SPI_Buffer,  sizeof(SPI_Buffer));
129
                          memcpy(ptr, (unsigned char *) SPI_Buffer,  sizeof(SPI_Buffer));
127
                         
130
                         
128
                          DebugOut.Analog[20]++;
131
                          SPI_RxDataValid = 1;
129
                        }
132
                        }
130
                        else DebugOut.Analog[21]++;
133
                        else SPI_RxDataValid = 0;
131
                       
134
                       
132
                        SPI_RXState  = 0;  
135
                        SPI_RXState  = 0;  
133
                   }
136
                   }
134
                  else rxchksum += rxdata;
137
                  else rxchksum += rxdata;
135
        break;   
138
        break;   
136
         
139
         
137
  }            
140
  }            
138
 
141
 
139
   if (SPI_BufferIndex < sizeof(ToNaviCtrl_Value))  
142
   if (SPI_BufferIndex < sizeof(ToNaviCtrl_Value))  
140
     {
143
     {
141
           SLAVE_SELECT_PORT &=  ~(1 << SPI_SLAVE_SELECT);  // SelectSlave
144
           SLAVE_SELECT_PORT &=  ~(1 << SPI_SLAVE_SELECT);  // SelectSlave
142
           asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
145
           asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
143
           asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
146
           asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
144
           asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
147
           asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");         asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop");
145
           
148
           
146
           SPDR = SPI_TX_Buffer[SPI_BufferIndex];
149
           SPDR = SPI_TX_Buffer[SPI_BufferIndex];
147
           *ToNaviCtrl_Chksum += SPI_TX_Buffer[SPI_BufferIndex];
150
           *ToNaviCtrl_Chksum += SPI_TX_Buffer[SPI_BufferIndex];
148
        //   SLAVE_SELECT_PORT |=  (1 << SPI_SLAVE_SELECT);   // DeselectSlave
151
        //   SLAVE_SELECT_PORT |=  (1 << SPI_SLAVE_SELECT);   // DeselectSlave
149
 
152
 
150
         }
153
         }
151
         else SPITransferCompleted = 1;  
154
         else SPITransferCompleted = 1;  
152
       
155
       
153
         SPI_BufferIndex++;
156
         SPI_BufferIndex++;
154
}
157
}
155
 
158
 
156
 
159
 
157
//------------------------------------------------------
160
//------------------------------------------------------
158
void UpdateSPI_Buffer(void)
161
void UpdateSPI_Buffer(void)
159
{
162
{
160
  static unsigned char i =0;
163
  static unsigned char i =0;
161
  cli();
164
  cli();
162
  ToNaviCtrl_Value.Command = SPI_CMD_VALUE;
165
  ToNaviCtrl_Value.Command = SPI_CMD_VALUE;
163
  ToNaviCtrl_Value.IntegralNick = (int) ( IntegralNick / 1024);
166
  ToNaviCtrl_Value.IntegralNick = (int) ( IntegralNick / 1024);
164
  ToNaviCtrl_Value.IntegralRoll = (int) (IntegralRoll / 1024);
167
  ToNaviCtrl_Value.IntegralRoll = (int) (IntegralRoll / 1024);
165
  ToNaviCtrl_Value.StickNick = 4;
168
  ToNaviCtrl_Value.StickNick = 4;
166
  ToNaviCtrl_Value.StickRoll = 5;//(char) StickRoll;
169
  ToNaviCtrl_Value.StickRoll = 5;//(char) StickRoll;
167
  ToNaviCtrl_Value.StickGier = 6;//(char) StickGier;
170
  ToNaviCtrl_Value.StickGier = 6;//(char) StickGier;
168
  ToNaviCtrl_Value.GyroCompass = ErsatzKompass / GIER_GRAD_FAKTOR;
171
  ToNaviCtrl_Value.GyroCompass = ErsatzKompass / GIER_GRAD_FAKTOR;
169
  ToNaviCtrl_Value.User1 = EE_Parameter.UserParam1;
172
  ToNaviCtrl_Value.User1 = Parameter_UserParam1;
170
  ToNaviCtrl_Value.User2 = EE_Parameter.UserParam2;
173
  ToNaviCtrl_Value.User2 = Parameter_UserParam2;
171
  ToNaviCtrl_Value.User3 = EE_Parameter.UserParam3;
174
  ToNaviCtrl_Value.User3 = Parameter_UserParam3;
172
  ToNaviCtrl_Value.User4 = EE_Parameter.UserParam4;
175
  ToNaviCtrl_Value.User4 = Parameter_UserParam4;
173
  ToNaviCtrl_Value.User5 = EE_Parameter.UserParam5;
176
  ToNaviCtrl_Value.User5 = Parameter_UserParam5;
174
  ToNaviCtrl_Value.User6 = EE_Parameter.UserParam6;
177
  ToNaviCtrl_Value.User6 = Parameter_UserParam6;
175
  ToNaviCtrl_Value.User7 = EE_Parameter.UserParam7;
178
  ToNaviCtrl_Value.User7 = Parameter_UserParam7;
176
  ToNaviCtrl_Value.User8 = EE_Parameter.UserParam8;
179
  ToNaviCtrl_Value.User8 = Parameter_UserParam8;
177
  sei();
180
  sei();
-
 
181
 
-
 
182
  if (SPI_RxDataValid)
178
 
183
  {
179
  DebugOut.Analog[30] = FromNaviCtrl_Value.GPS_Nick;
184
    GPS_Nick = FromNaviCtrl_Value.GPS_Nick;
180
  DebugOut.Analog[31] = FromNaviCtrl_Value.GPS_Roll;
185
    GPS_Roll = FromNaviCtrl_Value.GPS_Roll;
181
  KompassValue = FromNaviCtrl_Value.CompassValue;
186
    KompassValue = FromNaviCtrl_Value.CompassValue;
-
 
187
    KompassRichtung = ((540 + KompassValue - KompassStartwert) % 360) - 180;
-
 
188
 
-
 
189
    if (FromNaviCtrl_Value.BeepTime != 0) beeptime = FromNaviCtrl_Value.BeepTime;
-
 
190
  }
-
 
191
  else
-
 
192
  {
-
 
193
    KompassValue = 0;
-
 
194
    KompassRichtung = 0;
-
 
195
       
-
 
196
        GPS_Nick = 0;
-
 
197
    GPS_Roll = 0;
182
  KompassRichtung = ((540 + KompassValue - KompassStartwert) % 360) - 180;
198
  }
183
}
199
}
184
 
200
 
185
#endif
201
#endif
186
 
202
 
187
 
203
 
188
 
204