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projects:crazyflie:crtp:log [2013-03-20 09:32]
arnaud 		projects:crazyflie:crtp:log [2013-03-20 10:22]
macke
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 For more information on how to use this and how this is implemented have a look [[projects:crazyflie:firmware:log|here]]. For more information on how to use this and how this is implemented have a look [[projects:crazyflie:firmware:log|here]].
  
-===== State machine ===== +===== State machines ===== 
 +==== Downloading the Table Of Contents ====
 <ditaa> <ditaa>
-    /----------------\ +    /----------------\      /----------------\     /-------------\   No    /------\ 
- -->| Fetch TOC item | +--> | Fetch TOC info |----->| Fetch TOC item |---->| More items? |-------->| Done | 
-    \----------------/+    \----------------/      \----------------/     \-------------/         \------/ 
 +                                   ^                    | 
 +                                   |                    | 
 +                                   \--------------------/ 
 +                                           Yes
 </ditaa> </ditaa>
- 
- 
 ===== Communication protocol ===== ===== Communication protocol =====
  
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 ^ **Port**  ^ **Channel** ^ **Function**      ^ ^ **Port**  ^ **Channel** ^ **Function**      ^
-|   1       |    0        | Table of content access | +|   1       |    0        | Table of content access: Used for reading out the TOC | 
-|   1       |    1        | Log control | +|   1       |    1        | Log control: Used for adding/removing/starting/pausing log blocks | 
-|   1       |    2        | Log data |+|   1       |    2        | Log data: Used to send log data from the Crazyflie to the client |
  
 ==== Table of content access ==== ==== Table of content access ====
- +This channel is used to download the Table Of Contents that contains all the variables that are available for logging and what types they are.
-This channel is used to access the loggable variables table of content.+
  
 The first byte of each messages correspond a command. All communication on this port are initated by the client and all answer from the copter will contain the same command byte. The first byte of each messages correspond a command. All communication on this port are initated by the client and all answer from the copter will contain the same command byte.
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 |  1   | ID             | Timestamp in ms from the copter startup as a little-endian 3 bytes integer | |  1   | ID             | Timestamp in ms from the copter startup as a little-endian 3 bytes integer |
 |  4..  | Log variable values | Packed log values in little endian format |  |  4..  | Log variable values | Packed log values in little endian format | 
- 
projects/crazyflie/crtp/log.txt · Last modified: 2015-07-15 16:31 (external edit)

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