-// Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above copyright
-// notice, this list of conditions and the following disclaimer in the
-// documentation and/or other materials provided with the
-// distribution.
-// * All advertising materials mentioning features or use of this
-// software must display the following acknowledgement: This product
-// includes software developed by tm3d.de and its contributors.
-// * Neither the name of tm3d.de nor the names of its contributors may
-// be used to endorse or promote products derived from this software
-// without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-.comm crc,2
-#define _CRC16_
-
-CRC16_alg:
- ;crc
- push r_crc
- lds r_crc,crc;lade low byte fuer vergleich mit bit
- mov r_temp,r_crc
- andi r_temp,0x01 ;nur bit 0
- cp r_temp2,r_temp ;r_temp2 wird in interruptroutine gesetzt
- brne crc2 ;nur schieben
- ;schieben und XOR
- lds r_temp2,crc+1
- lsr r_temp2
- ror r_crc
- ldi r_temp, 0x01
- eor r_crc, r_temp
- ldi r_temp, 0xA0 ;
- eor r_temp2, r_temp
- rjmp crce
-crc2:
- lds r_temp2,crc+1
- lsr r_temp2
- ror r_crc
-crce:
- sts crc,r_crc
- sts crc+1,r_temp2
- pop r_crc
- ret
-
-.macro CRCS ; CRC beim Senden
- rcall CRC16_alg
-.endm
-
-.macro CRCR; CRC beim Empfangen
- ;clr r_temp2
- ;sbrc r_rwbyte,7
- ;ldi r_temp2,1
- rcall CRC16_alg
-.endm
-
-.macro CRCInit1; CRC initialisierung bei READ_COMMAND
- ldi r_temp,0
- sts crc,r_temp
- sts crc+1,r_temp
-.endm
-
-.macro CRCInit2; CRC initialisierung bei READ_DATA
-.endm
+// Copyright (c) 2015, Tobias Mueller tm(at)tm3d.de\r
+// All rights reserved. \r
+// \r
+// Redistribution and use in source and binary forms, with or without \r
+// modification, are permitted provided that the following conditions are \r
+// met: \r
+// \r
+// * Redistributions of source code must retain the above copyright \r
+// notice, this list of conditions and the following disclaimer. \r
+// * Redistributions in binary form must reproduce the above copyright \r
+// notice, this list of conditions and the following disclaimer in the \r
+// documentation and/or other materials provided with the \r
+// distribution. \r
+// * All advertising materials mentioning features or use of this \r
+// software must display the following acknowledgement: This product \r
+// includes software developed by tm3d.de and its contributors. \r
+// * Neither the name of tm3d.de nor the names of its contributors may \r
+// be used to endorse or promote products derived from this software \r
+// without specific prior written permission. \r
+// \r
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \r
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT \r
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR \r
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT \r
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, \r
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT \r
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, \r
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY \r
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT \r
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE \r
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. \r
+\r
+\r
+.comm crc,2\r
+#define _CRC16_\r
+\r
+CRC16_alg:\r
+ ;crc\r
+ push r_crc\r
+ lds r_crc,crc;lade low byte fuer vergleich mit bit\r
+ mov r_temp,r_crc\r
+ andi r_temp,0x01 ;nur bit 0\r
+ cp r_temp2,r_temp ;r_temp2 wird in interruptroutine gesetzt\r
+ brne crc2 ;nur schieben\r
+ ;schieben und XOR\r
+ lds r_temp2,crc+1\r
+ lsr r_temp2\r
+ ror r_crc\r
+ ldi r_temp, 0x01 \r
+ eor r_crc, r_temp\r
+ ldi r_temp, 0xA0 ;\r
+ eor r_temp2, r_temp\r
+ rjmp crce\r
+crc2:\r
+ lds r_temp2,crc+1\r
+ lsr r_temp2\r
+ ror r_crc\r
+crce:\r
+ sts crc,r_crc\r
+ sts crc+1,r_temp2\r
+ pop r_crc\r
+ ret\r
+\r
+.macro CRCS ; CRC beim Senden\r
+ rcall CRC16_alg\r
+.endm\r
+\r
+.macro CRCR; CRC beim Empfangen\r
+ ;clr r_temp2\r
+ ;sbrc r_rwbyte,7\r
+ ;ldi r_temp2,1\r
+ rcall CRC16_alg\r
+.endm\r
+\r
+.macro CRCInit1; CRC initialisierung bei READ_COMMAND\r
+ ldi r_temp,0\r
+ sts crc,r_temp\r
+ sts crc+1,r_temp\r
+.endm\r
+\r
+.macro CRCInit2; CRC initialisierung bei READ_DATA\r
+.endm\r
tm3d / owSlave2.git / blobdiff