file system for RTOS

Started by sai.e in comp.arch.embedded13 years ago 5 replies

Hi all, we r planning to write a simple filesystem for our propritory RTOS, is there any file systems for RAM please giv me...

Hi all, we r planning to write a simple filesystem for our propritory RTOS, is there any file systems for RAM please giv me suggestions regards sai.e


What is Real Time Operating System?

Started by Allen in comp.arch.embedded15 years ago 38 replies

Hi, I saw the word "RTOS" appeared many times in this group but have no idea what it is. So could the experts here give me a brief idea...

Hi, I saw the word "RTOS" appeared many times in this group but have no idea what it is. So could the experts here give me a brief idea what is it in non-technical terms? Which OSes in the market are qualified as RTOS? Allen


MMU handling page-fault in embedded RTOS system

Started by Anonymous in comp.arch.embedded13 years ago 4 replies

Hi all, I am new to this forum. anyone here has experience working with an MMU which handles page-fault in RTOS embedded system? Is there a...

Hi all, I am new to this forum. anyone here has experience working with an MMU which handles page-fault in RTOS embedded system? Is there a contradiction between page-fault handling (a case where not all the code is resident in RAM/ROM) and RTOS? I would really appritiate any help on this.


free rtos for PIC18 with complete drivers

Started by CMOS in comp.arch.embedded11 years ago 2 replies

hi, i've started playing with FreeRTOS MPLAB port for PIC18 devices and it works fine. however this port does not include drivers for i2c,...

hi, i've started playing with FreeRTOS MPLAB port for PIC18 devices and it works fine. however this port does not include drivers for i2c, USB, etc. therefore im looking for some other free RTOS projects for PIC18, that has these drivers already developed. If there are no existing free rtos's with these drivers available, i might consider writing those drivers for FreeRTOS. however as there ...


ucos-ii port for the Freescale MC9S12XEP100

Started by peustace in comp.arch.embedded12 years ago 2 replies

Hi, I'm working on a project to port ucos-ii to the mc above. I'm new to rtos and embedded systems. Can anyone point me in the right direction...

Hi, I'm working on a project to port ucos-ii to the mc above. I'm new to rtos and embedded systems. Can anyone point me in the right direction to writing ports for this rtos. I'm reading labrosse's book but its not all making sense. Thanks


An RTOS without Memory Managment

Started by Jalon in comp.arch.embedded11 years ago 7 replies

Hi All, I want to confirm my understanding on following RTOS concepts. 1) There are two kind of memory management is required, one when...

Hi All, I want to confirm my understanding on following RTOS concepts. 1) There are two kind of memory management is required, one when task are switching and we need to allocate memory to tasks and also to place the TCB for switching tasks. IS it right that this memory management is done by the RTOS Task management feature(Not by the memory management feature). 2) Also other level of me...


AT91SAM9260 RTOS

Started by okalex in comp.arch.embedded12 years ago 7 replies

Hello again, We've decided to use the Atmel AT91SAM9260 for our project. The chip is probably a bit more powerful than we currently need, but...

Hello again, We've decided to use the Atmel AT91SAM9260 for our project. The chip is probably a bit more powerful than we currently need, but it's always nice to have room for future enhancements, and it's slightly more expensive than most of the ARM7 and Coldfire chips we were looking at. While waiting for my development kit, I'm trying to figure out what development tools and RTOS to u...


How ordinary embedded differs from RTOS code?

Started by Madhanbm in comp.arch.embedded12 years ago 8 replies

frnds, my query may sound blunt but still ur replies value more to me. pls. help me in clearing the difference between working on...

frnds, my query may sound blunt but still ur replies value more to me. pls. help me in clearing the difference between working on ordinary embedded systems( i worked with PIC 16F877x series MPLAB IDE) and RTOS. Thanks, Madhan.B


I don't use an RTOS because...

Started by Anonymous in comp.arch.embedded15 years ago 164 replies

I use an RTOS every day, but I was wondering why a lot of people still don't use one? I find it a very useful tool, but I still run into a...

I use an RTOS every day, but I was wondering why a lot of people still don't use one? I find it a very useful tool, but I still run into a lot embedded engineers that don't use one, why? Too hard? To expensive? I don't need one? Never bothered to learn? My boss said no way?


Embedded Linux = RTOS ??

Started by Sagaert Johan in comp.arch.embedded15 years ago 5 replies

Can someone give an answer on this? Many vendors claim that their boards run embedded linux, but is this a real RTOS or a stripped down...

Can someone give an answer on this? Many vendors claim that their boards run embedded linux, but is this a real RTOS or a stripped down version of the full version ? Johan


choosing an scheduling algorithm for a RTOS

Started by ramu in comp.arch.embedded10 years ago 2 replies

Hi, Can you please let me know, based on what factors we choose a scheduling algorithm for a RTOS? Regards

Hi, Can you please let me know, based on what factors we choose a scheduling algorithm for a RTOS? Regards


Free RTOS

Started by Ricardo Malerba in comp.arch.embedded15 years ago 5 replies

Anybody knows a portable and free RTOS. Thanks in advance.

Anybody knows a portable and free RTOS. Thanks in advance.


RTOS port for LPC2214

Started by Vcc Ground in comp.arch.embedded14 years ago 1 reply

Is there a FreeRTOS.org or any other free RTOS port available for the LPC2214 (Olimex boards LPC-E2214 && LPC-H2214) ? Thanks. VG

Is there a FreeRTOS.org or any other free RTOS port available for the LPC2214 (Olimex boards LPC-E2214 && LPC-H2214) ? Thanks. VG


Embedded web server for ThreadX RTOS

Started by Marco Wang in comp.arch.embedded12 years ago 1 reply

Hello, I'm a newbie on ThreadX RTOS, just wonder what's the best HTTPD server on this platform? I don't need a sophisticated web server, HTTP...

Hello, I'm a newbie on ThreadX RTOS, just wonder what's the best HTTPD server on this platform? I don't need a sophisticated web server, HTTP plus CGI capability is enough. Any idea? TIA Marco Wang


uC/OS-II port for the Freescale MC9S12XEP100

Started by Anonymous in comp.arch.embedded12 years ago 1 reply

Hi guys, I'm doing a project for college that involves porting the uC/OS-II rtos to the MC9S12XEP100. First part of the project is to get the...

Hi guys, I'm doing a project for college that involves porting the uC/OS-II rtos to the MC9S12XEP100. First part of the project is to get the RTOS up and running on the chip and then offload some features to the coprocessor (Xgate module). I'm in the research stage at the moment and need a bit of help to get going really. At the moment I'm working through Jean Labrosse's book on his uC/...


Nucleus RTOS I/O Driver Advice

Started by Michel in comp.arch.embedded15 years ago 1 reply

I am new to Nucleus RTOS and I am trying to sketch out the architecture for a set of drivers that I will write for a BSP. I would...

I am new to Nucleus RTOS and I am trying to sketch out the architecture for a set of drivers that I will write for a BSP. I would greatly appreciate any tips or I/O driver examples that might help me along with the design. I want to use the standard Nucleus I/O driver requests to implement (among others) a two layered I/O driver to access an RTC connected on an I2C bus. I would like to...


embOS anyone?

Started by ArystorAaron in comp.arch.embedded10 years ago 15 replies

hello: has anyone used embOS? i have searched high and low and did not find any good reviews of the very interesting RTOS. also, anyone know...

hello: has anyone used embOS? i have searched high and low and did not find any good reviews of the very interesting RTOS. also, anyone know which is better, embOS or FreeRTOS? now, apparently, one is not allowed to compare FreeRTOS with any other RTOS, so, i dont want anyone to violate any licenses. FreeRTOS http://en.wikipedia.org/wiki/FreeRTOS [...] The exception also prevents user...


Semaphore services in embedded rtos

Started by Banh_2000 in comp.arch.embedded4 years ago 2 replies

I am looking for information how the semaphores work in embedded rtos like vxworks or integrity. Is there a minimum standards services required?...

I am looking for information how the semaphores work in embedded rtos like vxworks or integrity. Is there a minimum standards services required? Is there a standard ways for a task to wait in a semaphore or being waking up? When a semaphore is released, will all waiting tasks transferred to the ready queue?


Difference between Events and Signals wrt Interprocess Communication in RTOS

Started by ssubbarayan in comp.arch.embedded14 years ago 29 replies

Dear all, I am not aware of the exact difference between an event and a signal.I was under impression what was available as events in other...

Dear all, I am not aware of the exact difference between an event and a signal.I was under impression what was available as events in other RTOS is available as Signals with Vxworks.Can you please elaborate me the difference between the two or point me to some links where I can get the difference between the two? Advanced thanks for your replys, Regards, s.subbarayan


Code porting from VxWorks to Rtems

Started by Anonymous in comp.arch.embedded13 years ago 2 replies

Hi, I have a code in c for a chip(driver), which is calling functions of the vxworks RTOS. Functions such related to semaphores and queues. I...

Hi, I have a code in c for a chip(driver), which is calling functions of the vxworks RTOS. Functions such related to semaphores and queues. I need to port the drivers for RTEMS RTOS. Can someone please help me with how to go around with this. Regards, Amit