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Kevin O'Connor 9572ad4327 tmc_uart: Limit to only one active uart at a time on an mcu 
The tmcuart_send command increases cpu usage on the micro-controller.
Should multiple tmcuart_send commands be issued at the same time to a
single AVR micro-controller, it could increase the load to the point
that it introduces a failure. It could also lead to tmcuart_send
transmission errors, which would cause retransmission requests, which
further increase the load.

Track and share mutexes so that only one tmcuart_send command can be
active on a single mcu at a time.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 		2021-03-12 20:51:11 -05:00
.github/workflows workflows: Update stale-issue-bot.yaml to also close invalid tickets 2021-02-02 13:22:35 -05:00
config test: Add printer-hiprecy-leo-2019.cfg to printers.test 2021-03-07 18:58:08 -05:00
docs docs: Minor wording change to TMC_Drivers.md 2021-03-11 17:57:18 -05:00
klippy tmc_uart: Limit to only one active uart at a time on an mcu 2021-03-12 20:51:11 -05:00
lib lib: add FatFS notes to README 2021-02-05 19:37:56 -05:00
scripts serialhdl: Update callers to decide serial fd type 2021-03-02 11:38:50 -05:00
src armcm_boot: Improve ARM Cortex-M control transfer from bootloaders (#4024) 2021-03-09 09:32:20 -05:00
test test: Add printer-hiprecy-leo-2019.cfg to printers.test 2021-03-07 18:58:08 -05:00
.gitignore util: Fix versioning when gitdir is absent (#809) 2018-10-27 10:44:38 -04:00
COPYING Initial commit of source code. 2016-05-25 11:37:40 -04:00
Makefile Makefile: Improve build when changing micro-controller architecture 2020-12-17 10:02:16 -05:00
README.md docs: Update main README file to point to website 2019-04-20 13:43:35 -04:00

README.md

Welcome to the Klipper project!

Klipper

https://www.klipper3d.org/

Klipper is a 3d-Printer firmware. It combines the power of a general purpose computer with one or more micro-controllers. See the features document for more information on why you should use Klipper.

To begin using Klipper start by installing it.

Klipper is Free Software. See the license or read the documentation.