ARRIA 10 SOC BAREMETAL PROGRAMMING

[Itzthiru]

How to toggle HPS leds in Arria 10 SoC using direct memory access?

Tools I am using: Ubuntu 20.04 in Windows Virtual box, Arm DS 2023, SoC embedded Command Shell

Board: Arria 10 SoC

Additional Info: Installation completed and bootloader is also working perfectly. Also I can able to execute sample files also.

[JingyangTeh]

Hi Itzthiru

Is the LED connected to the HPS GPIO or a PIO soft IP?

When you connect to the PIO Soft IP you could interface it through the HPS to FPGA bridge.

You could use the devmem tool to read the memory address starting from the HPS to FPGA bridge it is connected to , either lightweight or normal.

You could get the base address from here:

https://www.intel.com/content/www/us/en/programmable/hps/arria-10/hps.html

As for the offset you could get it from the Quartus Platform Designer Tool under the Address Map Tab.

If you have registered the GPIO in the device tree, you could view the GPIO in the linux /dev directory.

Regards

Jingyang, Teh

[Itzthiru]

Hello @JingyangTeh,

                  Thank you for prompt response. I am a beginner in this Arria 10 SoC BareMetal Programming. I have completed my installation using this link: SoCEDS and ARM Development Studio | Documentation | RocketBoards.org . Now I would like to move forward with basic sample programs. I got stucked with toggling the HPS LED. Is there any possibility to toggle the LEDs connected to the HPS directly or is there any pre-configurations need to be done before doing this. If so, can you elaborate the steps and procedures to move forward with this? Also share me the latest document for installing software packages and working with BareMetal programming.

Thanks and Regards,

Thiru.

[JingyangTeh]

Hi Thiru

You could refer to this link on understanding more on the baremetal.

https://www.intel.com/content/www/us/en/docs/programmable/683211/current/bare-metal-user-guide.html

After understanding the flow, either booting directly to baremetal application or through uboot.

I would suggest that you try out the hello world example in the link below.

https://www.rocketboards.org/foswiki/Documentation/HWLib

Lets try out booting a simple application first before interfacing with the hardware.

Regards

Jingyang, Teh

[Itzthiru]

Hello @JingyangTeh,

                  Thank you. I have already completed the previous steps and stuffs that you have mentioned. I was able to run the bootloader and Altera-SoCFPGA-HelloWorld-Baremetal-A10, Altera-SoCFPGA-HardwareLib-Timer-A10 examples using Linux-GCC. Now I want to try doing the LED toggling via direct GPIO access. Help me in this regard....

Thanks and Regards,

Thiru.

[JingyangTeh]

Hi Thiru

Sorry for the late reply. I was emergency OOO last week,

You could refer to more examples for baremetal in the link below.

https://www.intel.com/content/www/us/en/support/programmable/support-resources/design-guidance/bare-metal-developer.html

There are examples to toggle the GPIO pins.

Regards

Jingyang, Teh

[Itzthiru]

Hello @JingyangTeh,

                  Thank you for sharing this resource. I'll check it with my Arria 10 and come back to you.

Regards,

Thiru.

[JingyangTeh]

Hi Thiru

Any update on this case?

Regards

Jingyang, Teh

[Itzthiru]

Hello @JingyangTeh,

                    I am checking with that and let you know if I get any progress.

[JingyangTeh]

Hi Thiru

Do you have any problem with the example deisgn?

Could I close this case first?

If you have question we could file a new case related to the specific problem you are facing.

Regards

Jingyang, Teh

[JingyangTeh]

Hi

Since there are no feedback for this thread, I shall set this thread to close pending. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.

If you happened to close this thread you might receive a survey. If you think you would rank your support experience less than 10 out of 10, please allow me to correct it before closing or if the problem can’t be corrected, please let me know the cause so that I may improve your future service experience.

Regards

Jingyang, Teh