Hi everybody
With other classmates, we are developing a school project in a C6713 DSK board. We generate sine waves at different frequencies in our C code and then send them to the AIC23 codec of the DSK to reproduce them.
Right now we are generating sinewaves of 3 seconds with a sampling rate of 8KHz, which produces an array of 24000 elements.
I have tested my c code on my pc and it works fine: It produces the sinewave's points in my array and all 24000 positions are filled with their respective value.
But when I compile and run this code in Code Composer Studio (v3.3) and download it to the DSK I get a warning telling me that I am trying to write in a memory position which I am not allowed or something like that. And in the watch window, where I am looking at my array, I get a similar warning in the boxes of the values where the memory is not enough (or some similar error).
I have been searching on forums and learned that this is due to the heap size that I assign to my project. I have just began to learn how to program the DSP and have no idea what do I have to do in order to solve this issue. I always do the following for my projects:
Create a new DSP/BIOS .tcf file, in the Memory tab I chose the IRAM properties and check the box "create heap in this memory" and then in the MEM properties I chose to create DSP/BIOS objects and malloc() (and other stuff) in the IRAM. Then I save the DSP/BIOS config file and forget about it.
Trying to solve the problem I just moved randomly the numbers assigned to heap in the IRAM properties window of the DSP/BIOS configuration file. But I can't solve the problem. Also I have read that I must reassign the memory map or assign the heap size in the linker options of the compiler.
So I have no idea what do I have to do. I would be very thankful to someone who could send me a link/explain me how this heap memory stuff works on the DSK. If it is too complicated to explain I would just like to know how can I make my c code work in the DSK.
I just want to be able to save my generated sine's values into my 24000 element array. Please consider that I am a university student that is just beginning to learn how to work with ccs, the dsk and all the digital signal processing world. Also I have no idea where to search for information that can help me with my problem that is why I am asking for your kind help in this forum.
Thank you very much for your attention.
Jorge Cifuentes
