Forum Discussion

CAlex's avatar
CAlex
Icon for Contributor rankContributor
2 years ago

How to set the SPL and the sdimage correctly with baremetal applications

Hi, I'm working on cycloneV soc with the newest soceds 20.1 so the bsp-editor cant be used as a uboot setting. I want to start the baremetal application from a sdcard. SDimage: A2: u-boot-wit...
Fpga Devkit
tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
2 years ago

Hi Alex


I managed to boot the baremetal application from the sdcard.

First you would need to build the application at address 0x1000040 and also build the uboot SPL.

Once you got both the application binary (application.bin) and the uboot SPL (u-boot-splx4.sfp).

You can combine both binary using the command:

cat u-boot-splx4.sfp application.bin > application_combine.bin


After having the application_combine.bin you could partition it into the sdcard using the sdcard creation script with the command:

sudo python3 ./make_sdimage_p3.py -f -P application_combine.bin,num=3,format=raw,size=10M,type=A2 -s 80M -n sdcard.img


Finally flash the sdcard.img on to the sdcard.


Regards

Jingyang, Teh




CAlex's avatar
CAlex
Icon for Contributor rankContributor
2 years ago

Hi,

Thank you for your responding.

I guess this is the way for "raw address" mentioned in the AN709,

if I want to start the application in vfat,what should I do?

Also, I tried the older version SOCEDS (before 19.0) so when you "make" the spl it will make a preloader-image.bin, this is the image I use.

Reguards.