Port at 0x3805h in C5510

Hi,

I could not find any description for 0x3805. It looks a reserved address. Why did you access that address?

Regards,

Hyun

Hyun,

I did not try to access it.

I have this issue with breakpoints. You can look at this post.

http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/p/73371/269854.aspx#269854

When I do a CPU Reset and load my code to the DSP and try to run it, it keeps running and doesn't stop

(even for a code as simple as filling an array in memory with some values).

When I halt it (Debug -> Halt), the processor halts at this particular statement in disassembly most of the times.

FF8196  a6513805       MOV port(#03805h), T2

So, I was just curious as to what this register is and what value does it move from that register to T2.

Thanks,

Regards,

Aditi.

Hyun,

I would like to know what is the DSP looking for in the I/O register 0x3805h.

The bootloader code goes like this.

FF8196 a6513805                 MOV port(#03805h),T2
FF819A 7d800066                 AND #32768,T2,T2
FF819E 0406f5                       BCC #0xff8196,T2 == #0

In this code, it looks like it moves the contents of the reg 0x3805h to T2 and is looking for the MSB of that register.

I would like to know what this bit is which it is polling.

Thanks,

Regards,

Aditi.