Real time execution with ARM

[neil84]

Hi all,

I'm trying to do a VI as in LabviewRT to run on Laminary Cortex3 processor.

I made this project, there is no error on the VI however when I execute it I have this error:

Error in expression

Detail: [UVSC_DBG_CALC_EXPRESSION, MSG: 0x200A, STATUS: 0xD] (13)

 What happens?

I suppose the shared variables are stransmitted thru ULINK? Is there a way to share these variable thru UART? because finally the processor will communicate with the CP only with UART.

thanks

[NicB]

No, shared variables are transmitted through TCP. It could be possible to share them using UART if a SLIP connection is established (but now only Ethernet is supported).

However you can pass data using Serial Compatibility functions for ARM and VISA for CP.
The error might appear due to RT features configured for the shared variables.

[whutdyp]

       It may be the problem of debugging tools. Just maybe. The debugging tools of you using is ULINK-2 ? ULINK-2 is very well-known, but it supports many series processors of ARM,such as Samsung、STM32、NXP、S3C、SAM3U(SAM3U processors use Cortex-M3 core.) and so on. It's not specially for ARM Cortex-M3.

        The core of processor you used is Cortex-M3. So, I recommand you to try to use one new debugging tools,CooCox Colink. It's a small ARM Cortex M3 JTAG hardware debug probe,specially for ARM Cortex-M3.  CooCox Colink integrates seamlessly into IAR Embedded Workbench and Keil RealView MDK.  It's free and open. You can download the colink plugin from http://coocox.org/. It seems very new. So, I very much look forward to sharing experiences with you and help each other.  Best regards. Thanks.