?? main.lst
字號:
\ 0000001E 01FC MOVW R31 : R30,R25 : R24
\ 00000020 0FE0 ADD R30,R16
\ 00000022 1FF1 ADC R31,R17
\ 00000024 8290 ST Z,R9
163 for (j = 0; j < 8; j++)
\ 00000026 2466 CLR R6
\ ??SearchBuses_2:
\ 00000028 E008 LDI R16,8
\ 0000002A 1660 CP R6,R16
\ 0000002C F490 BRCC ??SearchBuses_3
164 {
165 devices[i].id[j] = 0x00;
\ 0000002E E000 LDI R16,0
\ 00000030 2E90 MOV R9,R16
\ 00000032 2F4B MOV R20,R27
\ 00000034 E050 LDI R21,0
\ 00000036 E009 LDI R16,9
\ 00000038 E010 LDI R17,0
\ 0000003A ........ CALL ?S_EC_MUL_L02
\ 0000003E 01FC MOVW R31 : R30,R25 : R24
\ 00000040 0FE0 ADD R30,R16
\ 00000042 1FF1 ADC R31,R17
\ 00000044 2D06 MOV R16,R6
\ 00000046 E010 LDI R17,0
\ 00000048 0FE0 ADD R30,R16
\ 0000004A 1FF1 ADC R31,R17
\ 0000004C 8291 STD Z+1,R9
166 }
\ 0000004E 9463 INC R6
\ 00000050 CFEB RJMP ??SearchBuses_2
167 }
\ ??SearchBuses_3:
\ 00000052 95B3 INC R27
\ 00000054 CFDA RJMP ??SearchBuses_0
168
169 // Find the buses with slave devices.
170 presence = OWI_DetectPresence(BUSES);
\ ??SearchBuses_1:
\ 00000056 E003 LDI R16,3
\ 00000058 ........ CALL OWI_DetectPresence
\ 0000005C 2EC0 MOV R12,R16
171
172 numDevices = 0;
\ 0000005E 2477 CLR R7
173 newID = devices[0].id;
\ 00000060 018C MOVW R17 : R16,R25 : R24
\ 00000062 5F0F SUBI R16,255
\ 00000064 4F1F SBCI R17,255
\ 00000066 0128 MOVW R5 : R4,R17 : R16
174
175 // Go through all buses with slave devices.
176 for (currentBus = 0x01; currentBus; currentBus <<= 1)
\ 00000068 E0A1 LDI R26,1
\ ??SearchBuses_4:
\ 0000006A 23AA TST R26
\ 0000006C F189 BREQ ??SearchBuses_5
177 {
178 lastDeviation = 0;
\ 0000006E 2488 CLR R8
179 currentID = newID;
\ 00000070 0152 MOVW R11 : R10,R5 : R4
180 if (currentBus & presence) // Devices available on this bus.
\ 00000072 2D0C MOV R16,R12
\ 00000074 230A AND R16,R26
\ 00000076 2300 TST R16
\ 00000078 F149 BREQ ??SearchBuses_6
181 {
182 // Do slave search on each bus, and place identifiers and corresponding
183 // bus "addresses" in the array.
184 do
185 {
186 memcpy(newID, currentID, 8);
\ ??SearchBuses_7:
\ 0000007A E048 LDI R20,8
\ 0000007C E050 LDI R21,0
\ 0000007E 0195 MOVW R19 : R18,R11 : R10
\ 00000080 0182 MOVW R17 : R16,R5 : R4
\ 00000082 ........ CALL memcpy
187 OWI_DetectPresence(currentBus);
\ 00000086 2F0A MOV R16,R26
\ 00000088 ........ CALL OWI_DetectPresence
188 lastDeviation = OWI_SearchRom(newID, lastDeviation, currentBus);
\ 0000008C 2F3A MOV R19,R26
\ 0000008E 2D28 MOV R18,R8
\ 00000090 0182 MOVW R17 : R16,R5 : R4
\ 00000092 ........ CALL OWI_SearchRom
\ 00000096 2E80 MOV R8,R16
189 currentID = newID;
\ 00000098 0152 MOVW R11 : R10,R5 : R4
190 devices[numDevices].bus = currentBus;
\ 0000009A 2D47 MOV R20,R7
\ 0000009C E050 LDI R21,0
\ 0000009E E009 LDI R16,9
\ 000000A0 E010 LDI R17,0
\ 000000A2 ........ CALL ?S_EC_MUL_L02
\ 000000A6 01FC MOVW R31 : R30,R25 : R24
\ 000000A8 0FE0 ADD R30,R16
\ 000000AA 1FF1 ADC R31,R17
\ 000000AC 83A0 ST Z,R26
191 numDevices++;
\ 000000AE 9473 INC R7
192 newID=devices[numDevices].id;
\ 000000B0 2D47 MOV R20,R7
\ 000000B2 E050 LDI R21,0
\ 000000B4 E009 LDI R16,9
\ 000000B6 E010 LDI R17,0
\ 000000B8 ........ CALL ?S_EC_MUL_L02
\ 000000BC 019C MOVW R19 : R18,R25 : R24
\ 000000BE 0F20 ADD R18,R16
\ 000000C0 1F31 ADC R19,R17
\ 000000C2 5F2F SUBI R18,255
\ 000000C4 4F3F SBCI R19,255
\ 000000C6 0129 MOVW R5 : R4,R19 : R18
193 } while(lastDeviation != OWI_ROM_SEARCH_FINISHED);
\ 000000C8 2088 TST R8
\ 000000CA F6B9 BRNE ??SearchBuses_7
194 }
195 }
\ ??SearchBuses_6:
\ 000000CC 0FAA LSL R26
\ 000000CE CFCD RJMP ??SearchBuses_4
196
197 // Go through all the devices and do CRC check.
198 for (i = 0; i < numDevices; i++)
\ ??SearchBuses_5:
\ 000000D0 E0B0 LDI R27,0
\ ??SearchBuses_8:
\ 000000D2 15B7 CP R27,R7
\ 000000D4 F4A0 BRCC ??SearchBuses_9
199 {
200 // If any id has a crc error, return error.
201 if(OWI_CheckRomCRC(devices[i].id) != OWI_CRC_OK)
\ 000000D6 2F4B MOV R20,R27
\ 000000D8 E050 LDI R21,0
\ 000000DA E009 LDI R16,9
\ 000000DC E010 LDI R17,0
\ 000000DE ........ CALL ?S_EC_MUL_L02
\ 000000E2 019C MOVW R19 : R18,R25 : R24
\ 000000E4 0F20 ADD R18,R16
\ 000000E6 1F31 ADC R19,R17
\ 000000E8 5F2F SUBI R18,255
\ 000000EA 4F3F SBCI R19,255
\ 000000EC 0189 MOVW R17 : R16,R19 : R18
\ 000000EE ........ CALL OWI_CheckRomCRC
\ 000000F2 2300 TST R16
\ 000000F4 F011 BREQ ??SearchBuses_10
202 {
203 return SEARCH_CRC_ERROR;
\ 000000F6 E001 LDI R16,1
\ 000000F8 C003 RJMP ??SearchBuses_11
204 }
205 }
\ ??SearchBuses_10:
\ 000000FA 95B3 INC R27
\ 000000FC CFEA RJMP ??SearchBuses_8
206 // Else, return Successful.
207 return SEARCH_SUCCESSFUL;
\ ??SearchBuses_9:
\ 000000FE E000 LDI R16,0
\ ??SearchBuses_11:
\ 00000100 E0EF LDI R30,15
\ 00000102 ........ JMP ?EPILOGUE_B15_L09
208 }
209
210 /*! \brief Find the first device of a family based on the family id
211 *
212 * This function returns a pointer to a device in the device array
213 * that matches the specified family.
214 *
215 * \param familyID The 8 bit family ID to search for.
216 *
217 * \param devices An array of devices to search through.
218 *
219 * \param size The size of the array 'devices'
220 *
221 * \return A pointer to a device of the family.
222 * \retval NULL if no device of the family was found.
223 */
\ In segment CODE, align 2, keep-with-next
224 OWI_device * FindFamily(unsigned char familyID, OWI_device * devices, unsigned char size)
\ FindFamily:
225 {
\ 00000000 2F40 MOV R20,R16
\ 00000002 2F61 MOV R22,R17
226 unsigned char i = 0;
\ 00000004 E050 LDI R21,0
227
228 // Search through the array.
229 while (i < size)
\ ??FindFamily_0:
\ 00000006 1756 CP R21,R22
\ 00000008 F450 BRCC ??FindFamily_1
230 {
231 // Return the pointer if there is a family id match.
232 if ((*devices).id[0] == familyID)
\ 0000000A 01F9 MOVW R31 : R30,R19 : R18
\ 0000000C 8101 LDD R16,Z+1
\ 0000000E 1704 CP R16,R20
\ 00000010 F411 BRNE ??FindFamily_2
233 {
234 return devices;
\ 00000012 0189 MOVW R17 : R16,R19 : R18
\ 00000014 9508 RET
235 }
236 devices++;
\ ??FindFamily_2:
\ 00000016 5F27 SUBI R18,247
\ 00000018 4F3F SBCI R19,255
237 i++;
\ 0000001A 9553 INC R21
\ 0000001C CFF4 RJMP ??FindFamily_0
238 }
239 // Else, return NULL.
240 return NULL;
\ ??FindFamily_1:
\ 0000001E E000 LDI R16,0
\ 00000020 E010 LDI R17,0
\ 00000022 9508 RET
241 }
242
243
244 /*! \brief Read the temperature from a DS1820 temperature sensor.
245 *
246 * This function will start a conversion and read back the temperature
247 * from a DS1820 temperature sensor.
248 *
249 * \param bus A bitmask of the bus where the DS1820 is located.
250 *
251 * \param id The 64 bit identifier of the DS1820.
252 *
253 * \return The 16 bit signed temperature read from the DS1820.
254 */
\ In segment CODE, align 2, keep-with-next
255 signed int DS1820_ReadTemperature(unsigned char bus, unsigned char * id)
\ DS1820_ReadTemperature:
256 {
\ 00000000 ........ CALL ?PROLOGUE6_L09
\ 00000004 REQUIRE ?Register_R4_is_cg_reg
\ 00000004 REQUIRE ?Register_R5_is_cg_reg
\ 00000004 2F80 MOV R24,R16
\ 00000006 01D9 MOVW R27 : R26,R19 : R18
257 signed int temperature;
258
259 // Reset, presence.
260 if (!OWI_DetectPresence(bus))
\ 00000008 2F08 MOV R16,R24
\ 0000000A ........ CALL OWI_DetectPresence
\ 0000000E 2300 TST R16
\ 00000010 F419 BRNE ??DS1820_ReadTemperature_0
261 {
262 return DS1820_ERROR; // Error
\ 00000012 E108 LDI R16,24
\ 00000014 EF1C LDI R17,252
\ 00000016 C02A RJMP ??DS1820_ReadTemperature_1
263 }
264 // Match the id found earlier.
265 OWI_MatchRom(id, bus);
\ ??DS1820_ReadTemperature_0:
\ 00000018 2F28 MOV R18,R24
\ 0000001A 018D MOVW R17 : R16,R27 : R26
\ 0000001C ........ CALL OWI_MatchRom
266 // Send start conversion command.
267 OWI_SendByte(DS1820_START_CONVERSION, bus);
\ 00000020 2F18 MOV R17,R24
\ 00000022 E404 LDI R16,68
\ 00000024 ........ CALL OWI_SendByte
268 // Wait until conversion is finished.
269 // Bus line is held low until conversion is finished.
270 while (!OWI_ReadBit(bus))
\ ??DS1820_ReadTemperature_2:
\ 00000028 2F08 MOV R16,R24
\ 0000002A ........ CALL OWI_ReadBit
\ 0000002E 2300 TST R16
\ 00000030 F3D9 BREQ ??DS1820_ReadTemperature_2
271 {
272
273 }
274 // Reset, presence.
275 if(!OWI_DetectPresence(bus))
\ 00000032 2F08 MOV R16,R24
\ 00000034 ........ CALL OWI_DetectPresence
\ 00000038 2300 TST R16
\ 0000003A F419 BRNE ??DS1820_ReadTemperature_3
276 {
277 return -1000; // Error
\ 0000003C E108 LDI R16,24
\ 0000003E EF1C LDI R17,252
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