Hi all,
Im a newbie to Code composer and dsp programming as a whole. I have developed a
Ultra Wideband transmitter in C++ and now as part of my Masters thesis I need to
implement it on a c6416 dsk.
I have managed to get all the code compiling and building fine in CCS but the
problem lies with the memory allocation. I have many large arrays depending on
the number of multiplexed users in the system so the on-chip memory is not
sufficient. I need to be able to write to the external memory off the chip. I
can see the address range for these but don't know how to assign data to
this external memory. I realise this is probably a very trivial matter and easy
to most but as with all things getting started is my problem.
Any help would be greatly appreciated.
Regards,
Niall Barry
Please help - writing to sdram
Started by ●June 29, 2005
Reply by ●July 1, 20052005-07-01
You need to define an external section in a CMD file, and then use the
section declaration mechanism ( in C is how I know it, using a pragma, I
think ) to create the buffer in this external section.
Robert
www.gldsp.com
_____
From: code-comp@code... [mailto:code-comp@code...] On Behalf
Of theblaahead@theb...
Sent: Wednesday, June 29, 2005 6:44 PM
To: code-comp@code...
Subject: [code-comp] Please help - writing to sdram
Hi all,
Im a newbie to Code composer and dsp programming as a whole. I have
developed a Ultra Wideband transmitter in C++ and now as part of my Masters
thesis I need to implement it on a c6416 dsk.
I have managed to get all the code compiling and building fine in CCS
but the problem lies with the memory allocation. I have many large arrays
depending on the number of multiplexed users in the system so the on-chip
memory is not sufficient. I need to be able to write to the external memory
off the chip. I can see the address range for these but don't know how to
assign data to this external memory. I realise this is probably a very
trivial matter and easy to most but as with all things getting started is my
problem.
Any help would be greatly appreciated.
Regards,
Niall Barry
section declaration mechanism ( in C is how I know it, using a pragma, I
think ) to create the buffer in this external section.
Robert
www.gldsp.com
_____
From: code-comp@code... [mailto:code-comp@code...] On Behalf
Of theblaahead@theb...
Sent: Wednesday, June 29, 2005 6:44 PM
To: code-comp@code...
Subject: [code-comp] Please help - writing to sdram
Hi all,
Im a newbie to Code composer and dsp programming as a whole. I have
developed a Ultra Wideband transmitter in C++ and now as part of my Masters
thesis I need to implement it on a c6416 dsk.
I have managed to get all the code compiling and building fine in CCS
but the problem lies with the memory allocation. I have many large arrays
depending on the number of multiplexed users in the system so the on-chip
memory is not sufficient. I need to be able to write to the external memory
off the chip. I can see the address range for these but don't know how to
assign data to this external memory. I realise this is probably a very
trivial matter and easy to most but as with all things getting started is my
problem.
Any help would be greatly appreciated.
Regards,
Niall Barry
