TMS470 HET Question

Follow

Scott Coleman

• September 04, 2009 03:24

I'm in the process of evaluating Crossworks for ARM 2.0.3 and I'm trying to get a simple HET program working on my Olimex TMS470-P256 board (the board is based on a TMS470R1A256 chip). I created a HET project and made the HET project a dependency of my main project. However, I get an unresolved reference error:

 

undefined reference to `e_HETPROGRAM0_UN'

 

This symbol is defined in the main_het.h header file that is generated by the HET project:

 

extern volatile HETPROGRAM0_UN e_HETPROGRAM0_UN;

 

However, the linker cannot resolve the reference.

 

Can anyone help me get this working?

 

Thanks!

 

P.S. I ZIPped up the entire directory and attached the .ZIP file to this post.

 

 

/attachments/token/yfsmn04ueseh6by
/attachments/token/jsca9vzcka0ec5e

0

• 

  Michael Johnson

  • September 04, 2009 08:08

  The .het file isn't in the project - the project archiver doesn't add files that have absolute path names. Can you attach the .het file.

  0

  Comment actions Permalink
• 

  Michael Johnson

  • September 04, 2009 17:18

  I remember this now - we don't support the struct access to the HET RAM - you'll have to do the access using a cast e.g.

  //unsigned tmp = HET_L00_0.memory.control_word & 0x000FFFFF;   // RETRIEVE THE PULSE WIDTH COUNT
  unsigned tmp = ((HETPROGRAM0_UN*)(&HETRAMStart))->Program0_ST.L00_0.memory.control_word & 0x000FFFFF;   // RETRIEVE THE PULSE WIDTH COUNT
  

   

   

  0

  Comment actions Permalink
• 

  Scott Coleman

  • September 04, 2009 19:22

  No problem, I can do that.

   

  Thanks for your help!

   

  0

  Comment actions Permalink

Please sign in to leave a comment.