<s>
TI-RTOS	B-Operating_System
is	O
an	O
embedded	O
tools	O
ecosystem	O
created	O
and	O
offered	O
by	O
Texas	O
Instruments	O
(	O
TI	O
)	O
for	O
use	O
in	O
a	O
range	O
of	O
their	O
embedded	B-Architecture
system	I-Architecture
processors	O
.	O
</s>
<s>
It	O
includes	O
a	O
real-time	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
(	O
RTOS	B-Operating_System
)	O
component	O
named	O
TI-RTOS	B-Operating_System
Kernel	B-Operating_System
(	O
formerly	O
named	O
SYS/BIOS	B-Operating_System
,	O
which	O
evolved	O
from	O
DSP/BIOS	B-Operating_System
)	O
,	O
networking	O
connectivity	O
stacks	O
,	O
power	O
management	O
,	O
file	B-Application
systems	I-Application
,	O
instrumentation	O
,	O
and	O
inter-processor	O
communications	O
like	O
DSP/BIOS	B-Operating_System
Link	I-Operating_System
.	O
</s>
<s>
It	O
is	O
free	B-License
and	I-License
open-source	I-License
software	I-License
,	O
released	O
under	O
a	O
BSD	B-Operating_System
license	I-Operating_System
.	O
</s>
<s>
TI-RTOS	B-Operating_System
can	O
be	O
used	O
within	O
TI	O
's	O
Code	B-Application
Composer	I-Application
Studio	I-Application
integrated	B-Application
development	I-Application
environment	I-Application
(	O
IDE	O
)	O
,	O
IAR	O
Systems	O
 '	O
IAR	O
Embedded	O
Workbench	O
,	O
and	O
the	O
GNU	B-Application
Compiler	I-Application
Collection	I-Application
(	O
GCC	B-Application
)	O
.	O
</s>
<s>
Separate	O
versions	O
of	O
TI-RTOS	B-Operating_System
are	O
provided	O
to	O
support	O
TI	O
's	O
MSP43x	B-Architecture
(	O
including	O
MSP432	B-Device
)	O
,	O
SimpleLink	O
Wireless	O
MCU	O
,	O
Sitara	B-Device
,	O
Tiva	O
C	B-Language
,	O
C2000	O
,	O
and	O
C6000	O
lines	O
of	O
embedded	B-Architecture
devices	I-Architecture
.	O
</s>
<s>
TI-RTOS	B-Operating_System
provides	O
system	O
services	O
to	O
an	O
embedded	O
application	O
such	O
as	O
preemptive	B-Operating_System
multitasking	I-Operating_System
,	O
memory	B-General_Concept
management	I-General_Concept
and	O
real-time	B-General_Concept
analysis	O
.	O
</s>
<s>
TI-RTOS	B-Operating_System
can	O
be	O
used	O
in	O
different	O
microprocessors	B-Architecture
,	O
with	O
different	O
processing	O
and	O
memory	O
constraints	O
.	O
</s>
<s>
It	O
is	O
supported	O
by	O
Secure	B-Protocol
Sockets	I-Protocol
Layer	I-Protocol
(	O
SSL	O
)	O
and	O
Transport	B-Protocol
Layer	I-Protocol
Security	I-Protocol
(	O
TLS	O
)	O
libraries	B-Library
such	O
as	O
wolfSSL	B-Protocol
.	O
</s>
<s>
The	O
roots	O
of	O
TI-RTOS	B-Operating_System
were	O
originally	O
developed	O
by	O
Spectron	O
Microsystems	O
(	O
a	O
subsidiary	O
of	O
Dialogic	O
Corporation	O
)	O
as	O
the	O
first	O
RTOS	B-Operating_System
developed	O
specifically	O
for	O
digital	B-Architecture
signal	I-Architecture
processors	I-Architecture
and	O
was	O
named	O
SPOX	O
.	O
</s>
<s>
Spectron	O
eventually	O
also	O
developed	O
a	O
second	O
product	O
named	O
BIOSuite	O
that	O
included	O
a	O
real-time	B-General_Concept
kernel	B-Operating_System
and	O
various	O
associated	O
tools	O
.	O
</s>
<s>
Spectron	O
Microsystems	O
was	O
eventually	O
acquired	O
by	O
Texas	O
Instruments	O
and	O
the	O
SPOX	O
and	O
BIOSuite	O
products	O
were	O
merged	O
into	O
one	O
microkernel	B-Operating_System
product	O
named	O
DSP/BIOS	B-Operating_System
.	O
</s>
<s>
The	O
DSP/BIOS	B-Operating_System
RTOS	B-Operating_System
product	O
underwent	O
significant	O
changes	O
to	O
its	O
application	O
programming	O
interface	O
(	O
API	B-General_Concept
)	O
in	O
version	O
6.0	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
version	O
6.3	O
in	O
August	O
2010	O
,	O
DSP/BIOS	B-Operating_System
was	O
renamed	O
SYS/BIOS	B-Operating_System
to	O
reflect	O
its	O
support	O
for	O
microcontrollers	B-Architecture
beyond	O
DSPs	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
version	O
6.40	O
in	O
April	O
2014	O
,	O
SYS/BIOS	B-Operating_System
was	O
renamed	O
TI-RTOS	B-Operating_System
Kernel	B-Operating_System
and	O
made	O
a	O
component	O
of	O
the	O
TI-RTOS	B-Operating_System
product	O
suite	O
.	O
</s>
<s>
TI-RTOS	B-Operating_System
1.00	O
was	O
released	O
initially	O
in	O
July	O
2012	O
.	O
for	O
TI	O
's	O
microprocessors	B-Architecture
The	O
2.00	O
release	O
of	O
TI-RTOS	B-Operating_System
in	O
April	O
2014	O
completed	O
the	O
renaming	O
process	O
and	O
integrated	O
the	O
TI-RTOS	B-Operating_System
Kernel	B-Operating_System
and	O
other	O
components	O
under	O
one	O
software	O
umbrella	O
.	O
</s>
<s>
TI-RTOS	B-Operating_System
consists	O
of	O
these	O
components	O
,	O
some	O
of	O
which	O
are	O
unavailable	O
for	O
all	O
embedded	O
target	O
families	O
:	O
</s>
<s>
TI-RTOS	B-Operating_System
Drivers	O
and	O
Board	O
Initialization	O
–	O
Target-specific	O
device	O
drivers	O
.	O
</s>
<s>
Drivers	O
include	O
Ethernet	O
,	O
general-purpose	B-Architecture
input/output	I-Architecture
(	O
GPIO	B-Architecture
)	O
,	O
I²C	O
,	O
I²S	O
,	O
pulse-width	B-Algorithm
modulation	I-Algorithm
(	O
PWM	O
)	O
,	O
Serial	B-Architecture
Peripheral	I-Architecture
Interface	I-Architecture
(	O
SPI	O
)	O
,	O
universal	O
asynchronous	O
receiver/transmitter	O
(	O
UART	O
)	O
,	O
Universal	O
Serial	O
Bus	O
(	O
USB	B-Protocol
)	O
,	O
Watchdog	B-Application
timer	I-Application
,	O
and	O
Wi-Fi	O
.	O
</s>
<s>
Most	O
of	O
the	O
TI-RTOS	B-Operating_System
components	O
are	O
released	O
under	O
the	O
BSD	B-Operating_System
License	I-Operating_System
.	O
</s>
<s>
Any	O
user	O
can	O
rebuild	O
the	O
kernel	B-Operating_System
using	O
the	O
included	O
source	O
code	O
.	O
</s>
<s>
The	O
TI-RTOS	B-Operating_System
Kernel	B-Operating_System
is	O
made	O
up	O
of	O
a	O
number	O
of	O
discrete	O
components	O
,	O
called	O
modules	O
.	O
</s>
<s>
Each	O
module	O
can	O
provide	O
services	O
via	O
an	O
API	B-General_Concept
and	O
is	O
individually	O
configurable	O
.	O
</s>
<s>
For	O
example	O
,	O
system	O
semaphores	B-Operating_System
are	O
provided	O
by	O
a	O
module	O
named	O
ti.sysbios.knl.Semaphore	O
.	O
</s>
<s>
If	O
included	O
,	O
the	O
user	O
can	O
configure	O
various	O
aspects	O
of	O
the	O
Semaphore	B-Operating_System
module	O
,	O
and	O
instances	O
of	O
semaphores	B-Operating_System
to	O
be	O
created	O
on	O
system	O
start	O
up	O
.	O
</s>
<s>
The	O
module	O
also	O
provides	O
an	O
API	B-General_Concept
so	O
that	O
semaphores	B-Operating_System
can	O
be	O
created	O
,	O
posted	O
,	O
pended	O
,	O
and	O
deleted	O
as	O
an	O
embedded	O
program	O
runs	O
.	O
</s>
<s>
TI-RTOS	B-Operating_System
Kernel	B-Operating_System
provides	O
support	O
for	O
several	O
different	O
types	O
of	O
threads	O
in	O
an	O
embedded	B-Architecture
system	I-Architecture
.	O
</s>
<s>
TI-RTOS	B-Operating_System
Kernel	B-Operating_System
provides	O
tooling	O
to	O
set	O
up	O
an	O
embedded	B-Architecture
system	I-Architecture
's	O
memory	O
map	O
and	O
allow	O
memory	O
buffers	O
to	O
be	O
allocated	O
and	O
deallocated	O
while	O
the	O
system	O
runs	O
.	O
</s>
<s>
TI-RTOS	B-Operating_System
Kernel	B-Operating_System
provides	O
modules	O
that	O
allow	O
it	O
to	O
provide	O
information	O
about	O
how	O
the	O
system	O
is	O
executing	O
.	O
</s>
<s>
This	O
includes	O
how	O
different	O
threads	O
are	O
loading	O
the	O
CPU	O
over	O
time	O
,	O
and	O
logging	O
events	O
as	O
they	O
occur	O
in	O
both	O
the	O
system	O
application	O
and	O
within	O
the	O
TI-RTOS	B-Operating_System
Kernel	B-Operating_System
.	O
</s>
<s>
Also	O
,	O
the	O
Code	B-Application
Composer	I-Application
Studio	I-Application
IDE	O
can	O
take	O
this	O
logged	O
data	O
and	O
graphically	O
display	O
it	O
for	O
analysis	O
.	O
</s>
