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> open COM1, read the buffer and close it
Perhaps this is your problem. Why not open COM1 and leave it open until your program exits (or someone changes the setting for which com port the scale is attached to). No need to open and close every time you want to read a value.
2009-06-26 12:31:42 UTC in ComPort Library
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* Repeated from private email at Richard's request *
This does indeed look like it fixed the problem (boy, I
hate stupid user errors <grin>). However, it does bring up
an issue. Should configLIBRARY_KERNEL_INTERRUPT_PRIORITY
default to the LOWEST priority, or should it be the HIGHEST
priority? Or some value in the middle? Also, I see that
only a small number of...
2008-08-18 13:00:05 UTC in FreeRTOS Real Time Kernel
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Sample project sent via email. Thanks!
Jeff.
2008-08-14 20:12:23 UTC in FreeRTOS Real Time Kernel
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Working on that right now. I use this board:
http://www.st.com/mcu/contentid-100-110-STM3210B_EVAL.html
All the demo will need to run on is two serial ports, I hope. Will let you know as soon as I get it built and verify it hangs in the same manner.
Jeff.
2008-08-14 17:56:27 UTC in FreeRTOS Real Time Kernel
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Oops, that last NVIC should have read like this:
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 6;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;.
2008-08-14 15:49:35 UTC in FreeRTOS Real Time Kernel
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Yes, I diffed the demos for the xQueueSendFromISR and fixed those straight away (yes, some people do read those README files in the ZIP). I had the same problem on 4.7.3 and upgraded to 5.0.3 after reading this thread and seeing that M3 interrupts had been improved, hoping that it would fix my problem. Actually, it made it worse, in that with 4.7.3 it took a couple of hours to die rather than...
2008-08-14 15:48:06 UTC in FreeRTOS Real Time Kernel
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Look at vTaskList to get a list of tasks and their min stack remaining (it shows the lowest free bytes, not the most used bytes).
I'm having the same problem, only with serial interrupts causing the problem. In my ISR, I read a queue to send data, write a queue with received data (just like the demos). Another task reading a queue will hang exactly the way you describe almost immediately if...
2008-08-14 15:26:43 UTC in FreeRTOS Real Time Kernel
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I think I may be having a similar problem. I'm using a Cortex M3 with IAR and just updated to the latest 5.0.3 code. What happens for me is that when I have more than one serial port ISR running, the whole RTOS locks up. The lockup is in vListInsert line 130. The iteration never ends. I've checked my stack depths with vTaskList and it doesn't appear I'm overflowing any stacks (and turning...
2008-08-14 14:36:50 UTC in FreeRTOS Real Time Kernel
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> Funny enough I didn't map XK_Escape yet!
Ok, sounds easy enough to add. Hopefully I will get to that this weekend. Perhaps I'll dig around and figure out how to slow the events down in the code as well, since I won't have to worry about any updates tromping the code (I presume I'll uninstall powermated before installing gizmod). If you need any help on MythTV, give me a shout, but...
2005-04-19 02:00:02 UTC in powermated
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First, thanks for building support for Powermate's. I had been searching quite a while before I found any info in getting this to work in anything but ancient kernels!
I managed to get everything running on FC3 using the http://gentoo-wiki.com/HOWTO_Griffin_PowerMate_with_UDEV_and_Kernel_2.6.x guide. It took updating/installing quite a few packages before I realized I could turn off support...
2005-04-17 21:58:01 UTC in powermated
