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pkg/lvgl: set LVGL thread priority higher than main

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Using a lower priority than of the main thread would make
the LVGL thread to preempt the main thread, for example,
if you do a `xtimer_msleep(200);` on the main thread
giving any chance for the LVGL thread to preempt it
while working with LVGL on the main thread would
make the CPU crash.

To reproduce the bug just create various widgets, and fill
them with data from a sensor that "waits" for data to be ready.

Signed-off-by: Jean Pierre Dudey <me@jeandudey.tech>
This commit is contained in:
Jean Pierre Dudey 2020-11-11 09:46:21 +01:00
parent c068f13ba2
commit 7092c455f9
1 changed files with 1 additions and 1 deletions
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2
pkg/lvgl/Makefile.include
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@ -19,7 +19,7 @@ LVGL_MEM_SIZE ?= 5U*1024U
# Engine settings
LVGL_INACTIVITY_PERIOD_MS ?= 5*MS_PER_SEC # 5s
LVGL_TASK_HANDLER_DELAY_US ?= 5*US_PER_MS # 5ms
LVGL_TASK_THREAD_PRIO ?= THREAD_PRIORITY_MAIN-1
LVGL_TASK_THREAD_PRIO ?= THREAD_PRIORITY_MAIN+1
# Set the CFLAGS variable accordingly
CFLAGS += -DLV_COLOR_DEPTH=$(LVGL_COLOR_DEPTH)