EMIF16 boot through FPGA

Yurii Monakov

Other Parts Discussed in Thread: TMS320C6678

Hi, e2e community!

We have a custom board with TMS320C6678 and FPGA on it. DSP is connected to FPGA with EMIF16 interface for booting and data exchange purposes. Boot flash is connected to FPGA.

If I understand docs correctly, in EMIF16 boot RBL does nothing but places PC at 0x70000000. I've compiled *.out file with CCS and I want to upload it to flash memory at some offset (say 0x600000). And FPGA will fix DSP addresses to point to this offset at boot time.

So what do I need to generate flash file from my *.out file for one core? And what should I do to add images for other cores to this flash file? Does CCS automate this process?

Thanks for your replies,

Yurii

PS. Sorry for such inaccurate questions. I'm an ADI guy and Keystone platform is something new for me.

over 12 years ago

0 Rahul Prabhu over 12 years ago

TI__Guru** 116920 points

You will need the image stored on the NOR flash to be in CCS format. Convert your out file to boot table format using hex6x and then convert the boot table to CCS format using b2ccs and use ccs2bin to convert it to the final binary files to load on the NOR flash.

Related tools can be found in the following directory.

mcsdk_install_path \ tools \ boot_loader \ ibl \ src

Simplest way to load cores to all cores is to combine the images for all the cores into a single image and add control statements to check the core number in the code to execute core specific code. This is demonstrated in the main function of the srio boot example in MCSDK. Look for the following code.

coreNum = platform_get_coreid();
if (coreNum == 0){

}

else if (coreNum == N)

{

}

The other option which is a little more complex is the use of MAD utilities provided in MCSDK. The description of mad utilities is described here:

http://processors.wiki.ti.com/index.php/MCSDK_Image_Processing_Demonstration_Guide#Multicore_booting_using_MAD_utilities

Hope this helps.

Regards,

Rahul

0 Yurii Monakov over 12 years ago in reply to Rahul Prabhu

Intellectual 660 points

Thank you for your reply, Rahul, it was very helpful.

Yurii

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EMIF16 boot through FPGA