Custom Boot Loader

ivgeni kuqw

Hi,

I am using the 6657 DSP.

I want to build an application for sending an image over the PCIe to the DSP.

Before the DSP boots, I need to perform a checksum on the received image.If checksum OK, Boot the DSP with the image and turn on GPIO leds.

1. How Can I download a custom RBL (boot loader) to the DSP ? at which address does it start, at address of 0x20B00000 ?

2. How can I check checksum on an image (*.bin) file ? Is the checksum value exist in the file ?

Thanks,

Ivgeni.

over 11 years ago

0 Raja over 11 years ago

TI__Guru* 81335 points

Hi Ivgeni,

The ROM bootloader (RBL) source helps to design the boot procedure for the custom boards. The source code can be used in tandem with the bootloader user guide which can be downloaded from the link below. The source code does not contain any make files, so cannot be used to recompile the code.

http://software-dl.ti.com/sdoemb/sdoemb_public_sw/rbl/1_0_C6657/index_FDS.html

Thanks.

0 ivgeni kuqw over 11 years ago in reply to Raja

Intellectual 840 points

Hi,

How Can I download a custom RBL (boot loader) to the DSP and replace the existing one?

Thanks,

Ivgeni.

0 Ganapathi Dhandapani95 over 11 years ago in reply to ivgeni kuqw

TI__Mastermind 28085 points

Hi Ivgeni,

For Checksum, please refer the below thread:

http://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/p/336324/1174226.aspx#1174226

Thanks,

0 ivgeni kuqw over 11 years ago in reply to Ganapathi Dhandapani95

Intellectual 840 points

Hi Thanks,

How Can I download a custom RBL (boot loader) to the DSP and replace the existing one?

Thanks,

Ivgeni.

0 Raja over 11 years ago in reply to ivgeni kuqw

TI__Guru* 81335 points

Hi Ivgeni,

I have checked with team. They recommend you to contact your local TI FAE/Sales for custom RBL support.

Thanks.

0 ivgeni kuqw over 11 years ago in reply to Raja

Intellectual 840 points

Hi,

thanks,

One more question :

Can the DSP program run from internal memory (RAM), or it must run only from external memory like DDR ?

Thanks,

Ivgeni.

0 Raja over 11 years ago in reply to ivgeni kuqw

TI__Guru* 81335 points

Hi,

No. It can run on internal memory(L2SRAM). All depends on your application file size.

Thanks.

0 ivgeni kuqw over 11 years ago in reply to Raja

Intellectual 840 points

Hi,

a. How can I decide from which memory the program will run ?

b. Can I change the running memory during run ?

c . Can I copy the runniong program from L2 to DDR ?

Thanks,

Ivgeni

0 Raja over 11 years ago in reply to ivgeni kuqw

TI__Guru* 81335 points

Hi,

a. You can decide based on your application file size. If your application size is huge then you shall load it in DDR3. The load address configuration shall be changed in linker script file.

b. From my understanding, It is not possible at run time.

c. I am not clear about your requirement.

Thanks.

0 ivgeni kuqw over 11 years ago in reply to Raja

Intellectual 840 points

Hi,

a. what is linker script file ? what should I change when I want he image to be downloaded to DDR/L2 ?

Thanks

Processors

Processors forum

Custom Boot Loader