Commit Graph

8 Commits

Author SHA1 Message Date
Martin Preuss
66d5afb882 fixed description of a message. 2023-04-20 00:45:44 +02:00
Martin Preuss
519546babd avr: added some message documentation. 2023-04-16 23:23:25 +02:00
Martin Preuss
ded08b8c47 avr: new com2 and timer stack basically works again. 2023-04-12 21:46:34 +02:00
Martin Preuss
024d40fc95 avr: started reworking COM module.
- sending and receiving now basically works again, but too often the
  read buffer is in use when trying to receive a message.
2023-04-12 15:30:52 +02:00
Martin Preuss
4ba7b49cdd simplified message handling, switch from XOR checksum to CRC8 with polynomial 0x97.
0x97 allows for detection of all 1-3 bit errors in a message of up to
119 bytes
(see https://www.faa.gov/aircraft/air_cert/design_approvals/air_software/media/TC-14-49.pdf)
2023-04-07 23:22:40 +02:00
Martin Preuss
090122a192 reworked com stack.
- prepared for use of CRC8
- organized code in more files
- recv stats message now contains crc errors and io errors
2023-04-07 19:14:05 +02:00
Martin Preuss
9ba94d714b avr: increased COM buffer size to 24 bytes. 2023-04-05 23:39:45 +02:00
Martin Preuss
1981f7b475 avr: added message format descriptions. 2023-04-05 22:56:11 +02:00