From fa843c87eec9fa738f33cfb0db5844ca1350cddc Mon Sep 17 00:00:00 2001
From: Julian T <julian@jtle.dk>
Date: Wed, 11 Mar 2020 11:16:44 +0100
Subject: Added stuff for hpp and embedded

---
 sem4/embedded/m4/krnl-opgaver.md | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 sem4/embedded/m4/krnl-opgaver.md

(limited to 'sem4/embedded/m4')

diff --git a/sem4/embedded/m4/krnl-opgaver.md b/sem4/embedded/m4/krnl-opgaver.md
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+# Opgaver
+
+> Find 4 functioner til task, semafor, queue og message.
+
+# Task
+
+`k_crt_task` creates a new task and places it in the ready queue.
+
+`k_set_prio` sets the priority of running task.
+
+`k_sleep` put the task to sleep for some time.
+
+`ki_task_shift` brugt internt til at skrift task.
+
+# Semafor
+
+`k_crt_sem` initialises a new semafor.
+
+`k_mut_ceil_set` is called before k\_start.
+And can be used to leverage priorities when other task i waiting. **I THINK**.
+
+`k_set_sem_timer` setup a timer to trigger a semophore periodicly.
+
+`k_signal` signal a semophore.
+
+`k_wait` wait on a semophore.
+
+# Queue
+
+`k_crt_send_Q` create a new message queue.
+
+# Message
+
+`k_send` send a message to recieving task.
+
+`k_receive` wait for a message froms other task.
+
+Også funktioner til brug i interrupt, de har bare `ki_bla_bla` istedet.
+
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