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| Rev 1320 | Rev 1322 | ||
|---|---|---|---|
| Line 181... | Line 181... | ||
| 181 | // C3 to C0 is the channel number. 0 to 9 (4 bit, as assigned in the transmitter) |
181 | // C3 to C0 is the channel number. 0 to 9 (4 bit, as assigned in the transmitter) |
| 182 | // D9 to D0 is the channel data (10 bit) 0xaa..0x200..0x356 for 100% transmitter-travel |
182 | // D9 to D0 is the channel data (10 bit) 0xaa..0x200..0x356 for 100% transmitter-travel |
| 183 | // |
183 | // |
| 184 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
184 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| Line 185... | Line 185... | ||
| 185 | 185 | ||
| 186 | #define MAX_FRAMEGAP 56 // 7ms |
186 | #define MIN_FRAMEGAP 68 // 7ms |
| Line 187... | Line 187... | ||
| 187 | #define MAX_BYTEGAP 3 // 375us |
187 | #define MAX_BYTEGAP 3 // 310us |
| 188 | 188 | ||
| 189 | //############################################################################ |
189 | //############################################################################ |
| 190 | //Diese Routine startet und inizialisiert den USART1 für seriellen Spektrum satellite reciever |
190 | //Diese Routine startet und inizialisiert den USART1 für seriellen Spektrum satellite reciever |
| Line 199... | Line 199... | ||
| 199 | c = UDR1; // get data byte |
199 | c = UDR1; // get data byte |
| 200 | if(ReSync == 1) |
200 | if(ReSync == 1) |
| 201 | { |
201 | { |
| 202 | // wait for beginning of new frame |
202 | // wait for beginning of new frame |
| 203 | ReSync = 0; |
203 | ReSync = 0; |
| 204 | SpektrumTimer = MAX_FRAMEGAP; |
204 | SpektrumTimer = MIN_FRAMEGAP; |
| 205 | FrameCnt = 0; |
205 | FrameCnt = 0; |
| 206 | Sync = 0; |
206 | Sync = 0; |
| 207 | ByteHigh = 0; |
207 | ByteHigh = 0; |
| 208 | } |
208 | } |
| 209 | else |
209 | else |
| Line 221... | Line 221... | ||
| 221 | } |
221 | } |
| 222 | else |
222 | else |
| 223 | { |
223 | { |
| 224 | // Zeichen kam vor Ablauf der 7ms Sync-Pause |
224 | // Zeichen kam vor Ablauf der 7ms Sync-Pause |
| 225 | // warten auf erstes Sync-Zeichen |
225 | // warten auf erstes Sync-Zeichen |
| 226 | SpektrumTimer = MAX_FRAMEGAP; |
226 | SpektrumTimer = MIN_FRAMEGAP; |
| 227 | FrameCnt = 0; |
227 | FrameCnt = 0; |
| 228 | Sync = 0; |
228 | Sync = 0; |
| 229 | ByteHigh = 0; |
229 | ByteHigh = 0; |
| 230 | } |
230 | } |
| 231 | } |
231 | } |
| Line 295... | Line 295... | ||
| 295 | // hier stimmt was nicht: neu synchronisieren |
295 | // hier stimmt was nicht: neu synchronisieren |
| 296 | ReSync = 1; |
296 | ReSync = 1; |
| 297 | FrameCnt = 0; |
297 | FrameCnt = 0; |
| 298 | Frame2 = 0; |
298 | Frame2 = 0; |
| 299 | // new frame next, nach fruehestens 7ms erwartet |
299 | // new frame next, nach fruehestens 7ms erwartet |
| 300 | SpektrumTimer = MAX_FRAMEGAP; |
300 | SpektrumTimer = MIN_FRAMEGAP; |
| 301 | } |
301 | } |
| Line 302... | Line 302... | ||
| 302 | 302 | ||
| 303 | // 16 Bytes eingetroffen -> Komplett |
303 | // 16 Bytes eingetroffen -> Komplett |
| 304 | if(FrameCnt >= 16) |
304 | if(FrameCnt >= 16) |
| Line 311... | Line 311... | ||
| 311 | if(!ReSync) NewPpmData = 0; |
311 | if(!ReSync) NewPpmData = 0; |
| 312 | } |
312 | } |
| 313 | FrameCnt = 0; |
313 | FrameCnt = 0; |
| 314 | Frame2 = 0; |
314 | Frame2 = 0; |
| 315 | Sync = 0; |
315 | Sync = 0; |
| 316 | SpektrumTimer = MAX_FRAMEGAP; |
316 | SpektrumTimer = MIN_FRAMEGAP; |
| 317 | } |
317 | } |
| 318 | } |
318 | } |
| 319 | } |
319 | } |