C6713 Device Cycle Accurate Simulator

bachehkaraji said:

Trouble running Target CPU:   Memory Map Error: READ access by CPU to address 0x1b7c100, which is RESERVED in Hardware.
Trouble running Target CPU:   Memory Map Error: WRITE access by Default to address 0x1b7c100, which is RESERVED in Hardware.

Hi,

Thanks for your immediate reply.
How can I solved it ?

Thanks,
Best regards,

The GEL file may need to be updated so that the address of the PLLCSR register is included to the CCS Memory Map. I actually just noticed that the title of your post is "C6713 Device Cycle Accurate Simulator" but you mentioned using the DSK. Can you please clarify which you are using?

If using the DSK, open the DSK6713.gel file found in C:\CCStudio_v3.1\cc\gel and locate the setup_memory_map() function. Inside this function you should see numerous calls to GEL_MapAdd(). One of these will look similar to the one I copied in my last post.

Once you find the function call that starts with the address 0x01b7c000, find out the length of this range (which should be the third argument). If this length does not cover address 0x01b7c100, modify the range to something like 0x00000128 to ensure that all of the PLL registers are included.

If you are using the Cycle Accurate Simulator, I think this might be a limitation of the simulator software as it is run entirely on software as opposed to hardware.

Hi,

I tried to run a program using the C6713 Device Cycle Accurate Simulator.

Is there a way for do it?

Where there’s a will, there’s a way!?!

Thanks,

Well, you can modify the init6713sim.gel file in the same directory to add a GEL_MapAdd() from my earlier post. With the original GEL file CCS thinks that this memory range is invalid (because the simulator does not support the PLL). This would get rid of the errors regarding accessing that memory space, but because the PLL is not supported on the simulator writes to this address will not work. I've seen the project you mentioned before, but I do not remember enough about it to know whether or not this would cause the application to fail.

I think a bigger question here is why work on the simulator if you have a DSK handy? The code from that book is designed specifically to work on the DSK hardware, not on a CPU simulator.

Hi,
Thanks a lot for your immediate reply,

I want to know how can i generate a sinusoid, plot that with CCS, display that in CCS (sine8_buf) without using DSK hardware.

Now Can you please explain me where the code exactly do we use PLL?

///////////////////////////////////////////////////////////////////////
//Sine8_LED.c  Sine generation with DIP switch control

#include "dsk6713_aic23.h"                       //support file for codec,DSK
Uint32 fs = DSK6713_AIC23_FREQ_8KHZ;    //set sampling rate
short    loop = 0;                                    //table index
short gain = 10;                                      //gain factor
short sine_table[8]={0,707,1000,707,0,-707,-1000,-707};//sine values

void main()
{
 comm_poll();                                         //init DSK,codec,McBSP
 DSK6713_LED_init();                               //init LED from BSL
 DSK6713_DIP_init();                               //init DIP from BSL
 while(1)                                               //infinite loop
 {
  if(DSK6713_DIP_get(0)==0)                   //=0 if DIP switch #0 pressed
  {
    DSK6713_LED_on(0);                          //turn LED #0 ON
    output_sample(sine_table[loop]*gain);   //output for on-time sec
    if (loop < 7) ++loop;                           //check for end of table
    else loop = 0;                                    //reinit loop index
  }
  else DSK6713_LED_off(0);             //turn LED off if not pressed
 }                                               //end of while (1) infinite loop
}                                                //end of main
///////////////////////////////////////////////////////////////////////

Thanks