Hello Aine,

It appears that your code is performing is performing a reset. When a reset is performed and ROM boot is enabled [the default config of the DSK is ROM], the first 1024 locations of ROM are DMA'd into internal memory beginning at address 0. [You can verify this by doing a memory fill of some pattern beginning at zero with CCS. View address 0 and observe the pattern. Perform debug->reset CPU and watch the contents change - you will see your observed pattern at 0x20.]

If you are going to use a reset, it should be executed first.

You then must initialize the EMIF before you load your code [when using CCS the dsk GEL file does this for you].

Good luck,

mikedunn
aine_canby <a...@yahoo.com> wrote:

Hi all,

I'm working with the C6711DSK. I'm currently trying to load a dsp
program to my board using a PC windows program - via HPI. I have had
success with this but I had to configure the memory in a strange
manner. I'd now like to configure the memory in the correct manner.

In order to get my program working, I configured my SDRAM segment
from a base of 0x80000000 to 0x00000000.

So my windows app. loads the following code -

#include "audiocfg.h"
#include

#define HOST_RECEIVE_HAND_SHAKING_INFO 0x55555555

#define HS_BUFFER_LEN 6
#define ID_0 0x12345678
#define ID_1 0xf1f2f3f4
#define ID_2 0x08070605

#pragma DATA_SECTION(handShakingBuffer, "my_DataSect")
int handShakingBuffer[HS_BUFFER_LEN];

Void main()
{
handShakingBuffer[0] = ID_0;
handShakingBuffer[1] ID_1;
handShakingBuffer[2] = ID_2;

CACHE_flush(CACHE_L2ALL, (void *)0, 0);

while(handShakingBuffer[4] != HOST_RECEIVE_HAND_SHAKING_INFO);

return;
}

And succesfully reads the values -

0x12345678
0xf1f2f3f4
0x08070605

using HPI.

I'm now trying to configure the memory as -ENTRY POINT SYMBOL: "_c_int00" address: 800009a0MEMORY CONFIGURATION

name origin length used
attr fill
---------------------- -------- --------- -------- ----
--------
ResetVector 00000000 00000020 00000020 RWIX
HandShake 00000020 00000018 00000018 RWIX
SDRAM 80000000 10000000 00005ebd RWIXSECTION ALLOCATION MAP

output attributes/
section page origin length input sections
-------- ---- ---------- ---------- ----------------
.vers 0 00000000 00000038 COPY SECTION
00000000 00000038 audiocfg.obj (.vers)

.clk 0and I've added the pragma -

#pragma DATA_SECTION(handShakingBuffer, "HandShake")
int handShakingBuffer[HS_BUFFER_LEN];

When I upload this program, I get the values -

[0] 0200C069
[1] 027FFFEA
[2] 02100277
[3] 02000C29
[4] 0238002A
[5] 020388EB

at 0x00000020 (handShakingBuffer). When I should be getting -

handShakingBuffer[0] = ID_0; //0x12345678
handShakingBuffer[1] = ID_1;
handShakingBuffer[2] = ID_2;

I then used CCS to upload the following program to my dsp board -

Void main()
{
CACHE_flush(CACHE_L2ALL, (void *)0, 0);

while(handShakingBuffer[4] != HOST_RECEIVE_HAND_SHAKING_INFO);

return;
}

I watched the values in handShakingBuffer, before and after the flush
and they didn't change, the were -

[0] 0200C069
[1] 027FFFEA
[2] 02100277
[3] 02000C29
[4] 0238002A
[5] 020388EB

same as above. I think this means that I am loading the dsp program
correctly with my windows app, but that the dsp code is not
executing. This might be because HWI_reset is not correctly
configured.

I have 3 way caching enabled, and HWI is set to generate reset vector
at address 0. In the memory section manager, I have -

BIOS data - all set for SDRAM
BIOS code - all set for SDRAM
Compiler Sections - all set for SDRAM
Load Address - no options highlighted.

Remember also that I can actually get this to work with my
application by simply deleting the memory segments -

ResetVector
HandShake

and setting SDRAM's base to 0, but this is not good practice.

What might the issue be here?

Thanks very much for your help,

Aine.
_____________________________________
Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group.

_____________________________________
About this discussion group:

To Join: Send an email to c...@yahoogroups.com

To Post: Send an email to c...@yahoogroups.com

To Leave: Send an email to c...@yahoogroups.com

Archives: http://www.yahoogroups.com/group/c6x

Other Groups: http://www.dsprelated.com

Hi all, I'm working with the C6711DSK. I'm currently trying to load a dsp program to my board using a PC windows program - via HPI. I have had success with this but I had to configure the memory in a strange manner. I'd now like to configure the memory in the correct manner. In order to get my program working, I configured my SDRAM segment from a base of 0x80000000 to 0x00000000. So my windows app. loads the following code - #include "audiocfg.h" #include <csl_cache.h> #define HOST_RECEIVE_HAND_SHAKING_INFO 0x55555555 #define HS_BUFFER_LEN 6 #define ID_0 0x12345678 #define ID_1 0xf1f2f3f4 #define ID_2 0x08070605 #pragma DATA_SECTION(handShakingBuffer, "my_DataSect") int handShakingBuffer[HS_BUFFER_LEN]; Void main() { handShakingBuffer[0] = ID_0; handShakingBuffer[1] = ID_1; handShakingBuffer[2] = ID_2; CACHE_flush(CACHE_L2ALL, (void *)0, 0); while(handShakingBuffer[4] != HOST_RECEIVE_HAND_SHAKING_INFO); return; } And succesfully reads the values - 0x12345678 0xf1f2f3f4 0x08070605 using HPI. I'm now trying to configure the memory as - ENTRY POINT SYMBOL: "_c_int00" address: 800009a0 MEMORY CONFIGURATION name origin length used attr fill ---------------------- -------- --------- -------- ---- -------- ResetVector 00000000 00000020 00000020 RWIX HandShake 00000020 00000018 00000018 RWIX SDRAM 80000000 10000000 00005ebd RWIX SECTION ALLOCATION MAP output attributes/ section page origin length input sections -------- ---- ---------- ---------- ---------------- .vers 0 00000000 00000038 COPY SECTION 00000000 00000038 audiocfg.obj (.vers) .clk 0 and I've added the pragma - #pragma DATA_SECTION(handShakingBuffer, "HandShake") int handShakingBuffer[HS_BUFFER_LEN]; When I upload this program, I get the values - [0] 0200C069 [1] 027FFFEA [2] 02100277 [3] 02000C29 [4] 0238002A [5] 020388EB at 0x00000020 (handShakingBuffer). When I should be getting - handShakingBuffer[0] = ID_0; //0x12345678 handShakingBuffer[1] = ID_1; handShakingBuffer[2] = ID_2; I then used CCS to upload the following program to my dsp board - Void main() { CACHE_flush(CACHE_L2ALL, (void *)0, 0); while(handShakingBuffer[4] != HOST_RECEIVE_HAND_SHAKING_INFO); return; } I watched the values in handShakingBuffer, before and after the flush and they didn't change, the were - [0] 0200C069 [1] 027FFFEA [2] 02100277 [3] 02000C29 [4] 0238002A [5] 020388EB same as above. I think this means that I am loading the dsp program correctly with my windows app, but that the dsp code is not executing. This might be because HWI_reset is not correctly configured. I have 3 way caching enabled, and HWI is set to generate reset vector at address 0. In the memory section manager, I have - BIOS data - all set for SDRAM BIOS code - all set for SDRAM Compiler Sections - all set for SDRAM Load Address - no options highlighted. Remember also that I can actually get this to work with my application by simply deleting the memory segments - ResetVector HandShake and setting SDRAM's base to 0, but this is not good practice. What might the issue be here? Thanks very much for your help, Aine.