lucysrausch/hoverboard-firmware-hack
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minimalistic framing for UART command

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copied the uart framing idea from
https://github.com/EmanuelFeru/hoverboard-firmware-hack-FOC

to use:
send $AAAA to start frame
then steer, speed as usual
and XOR($AAAA, steer, speed) as checksum

commands that don't match are ignored, and UART DMA is reset
hopefully this will set it up to catch the next one
re-send frequently.
This commit is contained in:
Elliot Williams
2019-12-16 16:11:07 +01:00
parent 2569b22640
commit 976ba2d44a
2 changed files with 17 additions and 10 deletions
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Inc/config.h
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@@ -9,6 +9,7 @@
#define DELAY_IN_MAIN_LOOP 5 // in ms. default 5. it is independent of all the timing critical stuff. do not touch if you do not know what you are doing.
#define TIMEOUT 5 // number of wrong / missing input commands before emergency off
#define START_FRAME 0xAAAA // serial command start-of-frame magic word
// ############################### GENERAL ###############################