Stellaris ARM and CC2500

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Posted by Paul 50485

on Dec 29 2011 10:22 AM

Expert1705 points

Hi,

I am attempting to run a CC2500 on my target Stellaris ARM hardware. I would like to establish a p2p connection first and then add SimpliciTI. There are many sample projects for specific hardware, are there any projects for generic hardware with a Stellaris ARM? Is there a library, I can link in to my existing project?

Thanks

Paul

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Posted by BrandonAzbell

on Dec 29 2011 14:38 PM

Guru54850 points

SimpliciTI v1.1.1 is included in the most recent versions of StellarisWare. Example projects are found with the DK-LM3S9B96 and DK-LM3S9D96 board platforms.

Regarding examples for generic hardware, I'm not aware of any. I would suggest starting with one of the examples for the DK-LM3S9B96 or DK-LM4S9D96 and model accordingly.

Brandon

Posted by Paul 50485

on Apr 05 2012 14:58 PM

Expert1705 points

Thanks,

I downloaded the latest StellarisWare. Most of the information is contained in C:\StellarisWare\SimpliciTI-1.1.1 folder. Now I am looking for the hardware abstraction layer to connect the SimpliciTI functions to my hardware. For example how do I connect the SPI data stream to the functions?

BSP.c

void BSP_Init(void)
{
  BSP_INIT_BOARD();
  BSP_INIT_DRIVERS();

The file "bsp_drivers.c" only handles initialization

Paul

Posted by BrandonAzbell

on Apr 05 2012 19:49 PM

Guru54850 points

Eventually the connection to the specific SPI peripheral is performed in the following:

<STELLARISWARE_INSTALL_DIR>\SimpliciTI-1.1.1\Components\bsp\boards\dk-lm3s9d96\bsp_external\mrfi_board_defs.h

Brandon

Posted by Paul 50485

on Apr 06 2012 11:16 AM

Expert1705 points

Hi ,

Is the packet size of SimpliciTI limited to 64 bytes?

Regards

Paul

Posted by BrandonAzbell

on Apr 06 2012 11:28 AM

Verified Answer

Verified by BrandonAzbell

Guru54850 points

The SimpliciTI Specification found in <STELLARISWARE_INSTALL_DIR>\SimpliciTI-1.1.1\Documents\SimpliciTI Specification.pdf indicates the Application Payload size is limited for non-802.15.4 radios to 0 <= n <= 50 bytes and for 802.15.4 radios to 0 <= n <= 111 bytes.

This is found in Table 1 in section 6.5.

Brandon