well, i am working on the microcontroller ARM but i am using it as a simple microcontroller and want to use RTOS with the help of the...

well, i am working on the microcontroller ARM but i am using it as a simple microcontroller and want to use RTOS with the help of the Embedded linux.. But i had strated reading the book but i do find that its quiet difficult can u please suggest me some good ebook...or some material on the Embedded linux on the nex i desparately want to learn embedded linux how do i start?

Folks, How difficult it is for a software guy to learn working with hardware. I've been working on embedded systems for about 4 years. Worked on...

Folks, How difficult it is for a software guy to learn working with hardware. I've been working on embedded systems for about 4 years. Worked on various platforms like TI DSP, Morotola, Intel x86 etc. Having sound knowledge of C, Assembly, DD, RTOS and other system level stuff. I want to learn some basic skill on hardware side (like soldering etc.) to prototype some very simple circuits....

Hi folks, I am about to emabark on a new development using a COTS PC104 single board computer (probably Arcom Viper) for use in an industrial...

Hi folks, I am about to emabark on a new development using a COTS PC104 single board computer (probably Arcom Viper) for use in an industrial control system. The PC104 will perform the role of an autonomous serial data acquisition hub with some basic control functions. The PC104 will be installed in a remote location with proprietary ethernet or serial protocols revovering data from the PC...

Hello All, I am to design a dynamic linker/loader on Nucleus RTOS running on ARM9. my aim is to conserve memory by loading only the required...

Hello All, I am to design a dynamic linker/loader on Nucleus RTOS running on ARM9. my aim is to conserve memory by loading only the required (one or more) modules and offload other modules. I checked out to find that the code can be compiled position independent using the armcc compiler. also the executable format produced by armcc is ELF(elf32-little). I need pointers in how to design this ...

Hi, My RTOS has hooks that let the "kernel" ask tasks (forget how that is defined) to voluntarily shed resources (time, memory, power). This...

Hi, My RTOS has hooks that let the "kernel" ask tasks (forget how that is defined) to voluntarily shed resources (time, memory, power). This lets the kernel (actually, a "special" user-land task that makes decisions *for* the kernel) throttle back the demands placed on the *fixed* resources to better adjust to the current demands placed on them. So, if some "new" task needs to be spaw...

Any experience with On-Time RT-USB32 USB host software stack ? It comes at a reasonable price in source form ($3000), no royalties, and...

Any experience with On-Time RT-USB32 USB host software stack ? It comes at a reasonable price in source form ($3000), no royalties, and supports EHCI, HUBs, and some standard classes. Many years ago I used their old RT-Kernel rtos, and was pleased by the cleanliness of the code. Not that it resembles any similarity, but... I'd like to try that with the ISP1760 (if this beast really e...

Hi, I have a complete set of manuals for the iRMX RTOS on eBay as item number 250030480906. There is less than 24 hours to go and the...

Hi, I have a complete set of manuals for the iRMX RTOS on eBay as item number 250030480906. There is less than 24 hours to go and the auction price is stll less than a fiver. This is someone's chance to pick up a very useful addition to a library at a knock-down price. Details are given below for those who are interested : Thanks for your attention, Mike Softback. Condition...

Hi, I have a complete set of manuals for the iRMX RTOS on eBay as item number 250030480906. There is less than 24 hours to go and the...

Hi, I have a complete set of manuals for the iRMX RTOS on eBay as item number 250030480906. There is less than 24 hours to go and the auction price is stll less than a fiver. This is someone's chance to pick up a very useful addition to a library at a knock-down price. Details are given below for those who are interested : Thanks for your attention, Mike Softback. Condition...

I have always worked on non real-time systems, i.e. when the reaction of the system to an event should occur in a reasonable time. For example,...

I have always worked on non real-time systems, i.e. when the reaction of the system to an event should occur in a reasonable time. For example, when the user presses a button, a motor should start rotating. If the motor starts after 100us or 100ms is not so important. I never used RTOS, so the architecture of my firmware is based on "superloop technique" (background tasks running in the...

I'm implementing a serial transmit driver for a micro that isn't running an RTOS and I have some form of an implementation working but I'd like...

I'm implementing a serial transmit driver for a micro that isn't running an RTOS and I have some form of an implementation working but I'd like some advice on it. Just a note, the function "getc" is a bit confusing here because it isn't for received characters but rather is a way for the UART empty ISR to get characters to send out. Here's the pseudocode for my implementation: char txBuffe...

Dear experts, I am interested in learning from the rtos software application architectures you have come across,what would be the...

Dear experts, I am interested in learning from the rtos software application architectures you have come across,what would be the priority assigned to an UI based system? I am currently working for an consumer electronics product where A/V tasks and processing tasks take higher priority over UI task.What puzzles me would be that,in consumer electronics always the UI should be able t...

Gurus, I have worked in Lots of RTOS projects for consumer electronics applications.I have encountered the following problem in couple...

Gurus, I have worked in Lots of RTOS projects for consumer electronics applications.I have encountered the following problem in couple of instances and till now not able to track the reason behind it,because each time my solution varies.Given below is my brief of the problem: We have a consumer electronics appliance in which when the Target boots up and puts a logo screen,when the user pre...

Hi folks, I have got a question about memory protection in kernel mode for x86 processors. According to Intel's documenations "In Intel...

Hi folks, I have got a question about memory protection in kernel mode for x86 processors. According to Intel's documenations "In Intel VT-enabled system, running guests with paging disabled reduces the isolation of that guest - the guest can read and write all of the physical memory, including that of devices or other guest.". Here are a couple of questions: 1. Why? 2. Are kernel...

I am looking for a dual core (Intel Core Duo ro Core 2 Duo) board, fanless and an RTOS which supports that board. I need at least one ethernet...

I am looking for a dual core (Intel Core Duo ro Core 2 Duo) board, fanless and an RTOS which supports that board. I need at least one ethernet port, but not much else. Does anyone have any suggestions or ideas? Thanx

Hi Group, Intro I've been programming for a long time (to long to mention!), but 99% of my programming has been for 'desktop' PCs under DOS...

Hi Group, Intro I've been programming for a long time (to long to mention!), but 99% of my programming has been for 'desktop' PCs under DOS and UNIX using C. I've rarely had to worry about interrupts, watchdogs etc. Well now I have to! The target will be a Radio with an 8-bit NEC Micro controller (non-RTOS). My initial task is to Tx/Rx data over serial comms (again, I hope in C). The da...

hello, Im working on threadx rtos (actually with NET+OS 6.3 from Netsilicon), I have already the source code of my project but I need to port...

hello, Im working on threadx rtos (actually with NET+OS 6.3 from Netsilicon), I have already the source code of my project but I need to port it to threadx. This code uses shared memory with such libraries and functions as shm.h or shm_open() which are not provided by threadx. How can I do the same thing? Everything would be ok if it wouldn't miss memory.h and sys/shm.h.... :( help......

I have a real-time app that runs on a P4. The box we are running it on has an Aopen i865PEa-7IF motherboard. We are using the On-Time RTOS. We...

I have a real-time app that runs on a P4. The box we are running it on has an Aopen i865PEa-7IF motherboard. We are using the On-Time RTOS. We have found that every 37 seconds the app completely stops running for 250 microseconds. Using a PCI bus analyzer we discovered that between the last operation done by my app and when my app resumes running shows 100's and 100's of I/O reads and writes...

Hi all, I am working on a small RTOS for MSP430. It should just provide scheduler with ability to switch and change context.... Of course I...

Hi all, I am working on a small RTOS for MSP430. It should just provide scheduler with ability to switch and change context.... Of course I have system tick ISR which is handling ticks. And here is the thing...When I take a look in disassembly, it says that before msp430 enters system tick ISR it pushes registers R15,R14,R13 and R12(and of course PC and SR) on stack. So I used that for context...

Hi all, I am working on a small RTOS for MSP430. It should just provide scheduler with ability to switch and change context.... Of course I...

Hi all, I am working on a small RTOS for MSP430. It should just provide scheduler with ability to switch and change context.... Of course I have system tick ISR which is handling ticks. And here is the thing...When I take a look in disassembly, it says that before msp430 enters system tick ISR it pushes registers R15,R14,R13 and R12(and of course PC and SR) on stack. So I used that for context...

Gurus, I am encountering a strange situation in one of our consumer electronics embedded product. The product runs on prorietory RTOS and...

Gurus, I am encountering a strange situation in one of our consumer electronics embedded product. The product runs on prorietory RTOS and a custom processor supplied by ST Micro electronics.Now what happens is,the box runs for around 8 hours with out any problem.After 8 hours it crashes.I am clueless on how to debug it.The debugger window throws error "task out of scope,stack frame ca...