ChibiOS Free Embedded RTOS

Ah! Yes. In your main change while(TRUE){} to while(TRUE) { chThdSleepMilliseconds(500); } Never use an empty loop in an RTOS... I know from experience. :oops: :oops: If you have other code that runs in that while() loop, you will probably want to use a shorter delay. A few milliseconds would be fin...

I doubt it is a chibios problem. Where is your main where you init chibios? Can you provide your whole file? If not, can you create a short test program that does the same thing? Are you running a debugger? can you see what the processor is doing? Do you have all the debug options turned on? You mig...

1. What board are you using?

2. On the stm32f4 discovery, be sure you plug the usb cable into the OTHER usb
port. The plug you use to load programs and debug through is not connected
to the stm32f4, you need to connect to the plug on the bottom of the bourd next
to the audio jack.

-John Scott

Congratulations on deciding to upgrade!!! :D :D I would say go with the STM32F4Discovery. It includes a programmer on board. Then download ChibiStudio. It includes all the tools you will need to get started. Beware, however, that it is Eclipse, and will probably require some time for you to get the ...

Hi Korken, If I understand your concept correctly, I think I would implement your message passing using a thread not the VT callback. -- In the thread, you would wait on a semaphore. -- Then in the VT callback you would signal that semaphore. -- Then the thread can do whatever it needs, and you can ...

...all runs into hell ... is not a very technical description .... Can you provide some more detailed information.... ... say a error message? ... or better yet a screen print would help provide us an idea just what is going on. otherwise perhaps someone can recommend a good exorcist.... :P Most de...

Colin, Yea, I think just passing a message might be better. That would solve the problem I have with defining a thread in one module and creating the thread. Giovanni, How would I go about having one module named processing.c that contains a thread defined in the usual way. Then call the create proc...

Russian,

Try declaring pendingBuffer volatile.

They if that does not do it, try adding a simple pendingBuffer[0] = 1;
and see what that does...

It seems to be a very fussy problem...

-John

I am getting ADC data from three ADC channels and doing some processing in the ADC callback. When my data buffer is ready, I switch buffers and need to send the full buffers to another thread for processing while the second set of buffers fill. I have not been able to figure out how to start a threa...

Russian, Ok, I did some testing on a sample program of mine... The *_ccm.ld file that Giovanni updated works! ( not that that is a surprise!!) While I don't think I have done exhaustive testing, I found two things that need to be done. 1. Declare your variable such as: volatile uint16_t zaudio_sampl...