Activity
From 04/14/2025 to 05/13/2025
05/13/2025
- JC 09:25 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Rajkumar Dumala wrote in message#6940:
> Hi Mike,
> ...
Note per "PCN20250509000":https://support.criticallink.com/redmine/projects/mitysom_am62x/wiki/Errata_and_Module_Product_Change_Notifications the AM62A you have may be set to 1.25... - MW 09:29 AM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Rajkumar,
It's not clear why there would be a difference between the two. It's the same processor / frequency design.
You might try and disable all of the peripherals you don't intend to use in the device tree you are using, as... - RD 07:28 AM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Mike,
I was on leave for the past four days, so I wasn't able to communicate.
When we tested on the TI EVM, the behavior was slightly better, and we were able to achieve 800 Hz.
Thank you,
Rajkumar.
- JC 04:48 PM Software Development: RE: Enable DDR ECC in Am62A processor
- Sorry guys. Ecc doesn't work with the current u-boot code.
The issue is my ddr setup code which dynamically sets up the ddr based on ddr size. The code needs to reduce the max size when ecc is enabled.
I have some hard coded test c... - MW 02:21 PM Software Development: RE: Enable DDR ECC in Am62A processor
- Hi Raj,
Does it work on the TI EVM? The reason I ask is that the EVM has 8 GB of memory. I just want to make sure it's memory size and not something with the IPC / DSP comms and enabling ECC that is the problem.
-Mike
- RD 02:01 PM Software Development: RE: Enable DDR ECC in Am62A processor
- Hi Mike,
I don't understand why it's not working, even though all the reserved regions seem to be within the valid memory range.
@@[ 0.000000] Reserved memory: created CMA memory pool at 0x00000000c0000000, size 256 MiB
[ 0.00... - MW 12:11 PM Software Development: RE: Enable DDR ECC in Am62A processor
- Hi Rajkumar,
From this link:
https://support.criticallink.com/redmine/projects/mitysom_am62x/wiki/Enabling_DDRSS_ECC
The maximum memory address is approximately 0xFFFFFFFF * 8 / 9 ~= 0xE38E38E2
It looks like the maximum CMA s... - RD 10:42 AM Software Development: RE: Enable DDR ECC in Am62A processor
- Hello,
It was my mistake—I shared the wrong screenshot earlier. You can find the correct one attached with this message.
Thank you,
Rajkumar - RD 10:38 AM Software Development: RE: Enable DDR ECC in Am62A processor
- Hello Mike,
I reduced the CMA size to 512 MiB; however, the issue remains the same.I am providing the image for your reference.
Thank you,
Rajkumar.
- MW 09:37 AM Software Development: RE: Enable DDR ECC in Am62A processor
- Well. Sorry it only goes up to 0xF0000000. But that still may be too high.
- MW 09:36 AM Software Development: RE: Enable DDR ECC in Am62A processor
- Hello,
When you enable ECC in LPDDR4, you reduce the maximum amount of addressable memory available to the device. IT uses some of the 4 GB to hold the ECC data.
The CMA settings I am seeing above include a 576 MB (assuming 0x2000... - RD 07:49 AM Software Development: RE: Enable DDR ECC in Am62A processor
- Just to add to the above point:
In the boot log, it shows that ECC is enabled, and I am able to run some test cases as mentioned in the TI documentation using U-Boot (manual boot mode).
Thank you. - Hello there,
We are using the MitySOM-AM62x Devkit with the AM62A System on Module (SoM), which includes 4 GB of LPDDR4 (with inline ECC).
As part of SDL, we enabled ECC in the R5 MSRAM (512 KB) it is working fine . After that, I e...
05/07/2025
- JC 02:55 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Note we are not super familiar with ROS but from my quick googling, sending messages around 1kHz does seem like its approaching the limits of ROS2 even on a desktop system. I'm not saying its not possible because I don't know but we shou...
- JC 02:21 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Rajkumar, Note I added pre tags around your code dumps. You have been using the @ symbols but that only works for single lines. You can easily add the pre tags by highlighting what you want marked as code and then hitting the pre butto...
- MW 10:06 AM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- When you run the example on the TI EVM (with SDK 10.1 + RT config), do you see 1000 Hz performance or the same 600 Hz performance?
- RD 05:46 AM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Mike,
We have pulled the Ubuntu-based Docker container on top of the MitySOM SDK 10.01.
We built the kernel using the following command:
make O="$BUILDDIR" defconfig ti_arm64_prune.config mitysom-am62xx-devkit.config ti_rt.config...
05/02/2025
- RD 01:06 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Mike,
The U-Boot build is working fine. I haven't tried the SD card image you mentioned yet, but I will try it and update you.
Thank you.
05/01/2025
- JC 07:43 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Updated 10.1 62A images have been released. https://support.criticallink.com/redmine/projects/mitysom_am62x/wiki/Repositories_and_Pre-built_Images#MitySOM-AM62Ax-Development-Kit-SD-Card-Image
04/30/2025
- JC 03:45 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- I also just pushed the commit to the mitysom-u-boot-2024.04 u-boot branch. So you could build u-boot and update the 10.1 SDK sdcard image. Similar to how you did the debian image.
https://support.criticallink.com/gitweb/?p=u-boot-ti.g... - JC 02:13 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
> Card did not respond to voltage select! : -110
> ...
I was just looking into this error case last week. Do you happen to be using a sandisk sdcard?
In the 10.1 SDK u-boot, TI has enabled UHS mode in u-boot to allow booting fas...- RD 01:07 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Mike,
Hope you're doing well.
We received the AM62A SoM today from Critical Link and inserted it into the AM62x Development Kit.
We flashed the SD card with the reference microSD card image (tisdk-default-image-mitysom-am62ax.roo...
04/29/2025
- JC 01:43 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- > I ran the 62xx-build-dts.sh script, but it threw an error because it was unable to find the .config file
Thanks for pointing this out. I'd never tried using the dts script without already having run the full build. But this can be... - MW 12:54 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Glad you got it fixed! (our comments passed each other!)
- MW 12:53 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Can you check if you disabled the MCAN0 mux options? Usually the first device to claim the resource wins, so if MCAN initializes first it might claim the pins on you.
make sure the lines below are commented out in k3-am62px-mitysom-d... - RD 12:46 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Mike,
Update on the above comment:
It is working now. The issue was that pins B23 and F20 were already being used in the main_gpio_p3_pins_default node for the P3 connector. I commented out those two pins, and now UART5 has started ... - RD 11:54 AM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- We’ve now implemented the changes you suggested, and the OS is working fine.
Since we only copied the U-Boot and device tree from the Critical Link (CL) build into the TI file system, we needed to explicitly enable main_uart5 in the d...
04/21/2025
- JC 02:54 PM Software Development: RE: Video encoding power performance
- Nothing beyond some of the MIPI camera streaming.
Do you have a specific encoding in mind? A gstreamer pipeline we could try? - Have you done any performance testing with video encoding? We are specifically looking for the power consumption delta between AM62A HW encode vs AM62 software encoding.
04/17/2025
- JC 01:22 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- We also have specific guides on how to build our u-boot and kernel linked below.
https://support.criticallink.com/redmine/projects/mitysom_am62x/wiki/U-Boot_Building_for_MitySOM-AM62
https://support.criticallink.com/redmine/projects/... - MW 12:57 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- The links to our git repositories and branch names for the kernel and uboot (you'll want the latest / scarthgap release) are at the top of the
[[Repositories_and_Pre-built_Images]] page. This includes the dts files you'll need to modif... - RD 12:44 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Mike,
I did the same setup using the TI Debian SDK v10.00. It booted successfully, and I have the default TI kernel and kernel headers. I also installed the EtherCAT IGH Master.
I want to bring up one point: I entered manual boo... - MW 12:22 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Rajkumar,
Ok. I rebuilt the image using TI's SDK 10.01 debian trixie am62pxx-evm build (vs. the am62xx build) and only copied the boot files (in the first partition) and added our device tree. I left the kernel and modules the sa... - RD 06:01 AM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Mike,
Just to clarify, I hadn’t found the link below previously—it looks like it was updated recently:
https://support.criticallink.com/redmine/projects/mitysom_am62x/wiki/Updating_the_TI_EVM_Debian_Image_for_the_MitySOM-AM62x_D...
04/16/2025
- MW 08:11 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Rajkumar,
The image I provided was for a MitySOM-AM62x, not an MitySOM-AM62P. You'll need to redo what I have listed in the link below with our AM62P reference image. Sorry for the inconvenience.
https://support.criticallink.c... - JC 02:41 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Note replace references of am62x with am62p. So make sure to download the am62p tisdk image and but still start with the am62 debian image.
TI does have a 62p debian sdcard image as well, though in reality they should be mostly iden... - RD 01:31 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Mike,
I'll try the image that you sent and will update you on the status.
Thank you. - MW 01:09 PM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Rajkumar,
Can you try this image?
https://support.criticallink.com/files/mitysom62x/tisdk-debian-trixie-mitysom-am62xx-devkit.wic.xz
I am working on instruction.
Thanks,
Mike
- RD 11:41 AM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Mike,
Thanks for your reply.
I flashed the reference microSD card image (Debian) provided by Critical Link, not the one from TI.
https://support.criticallink.com/redmine/projects/mitysom_am62x/wiki/Repositories_and_Pre-built_Im... - MW 11:18 AM Software Development: RE: Debian SDK Not booting in am62p (Am62x dev kit)
- Hi Rajkumar,
Did you note the (brief) instructions here:
https://support.criticallink.com/redmine/projects/mitysom_am62x/wiki/Repositories_and_Pre-built_Images#Debian-Image-Not-typically-needed
The reference image from TI will n... - Hello There,
We have a MitySOM-AM62x Development Kit and the AM62P family SoM as well. I flashed the Debian image onto the SD card and tried to boot the board, but it didn't boot, and nothing is printing on the Putty terminal (/tty/US...
04/14/2025
- MW 10:49 PM PCB Development: RE: STP model missing mounting hole
- Hi Brian,
I uploaded an new export for the file requested. I think the hole should be visible in that model. Sorry for the inconvenience.
-Mike
- I have 80-001614RI-2_STEP_RevA.step and it does not have a hole for the standoff called out in the carrier board design guide. Would you be able to upload a new step model?