AM625: My CPU SOM is not being programmed using the microSD boot mode option

Hello,

VINAYAK M K said:

But when I tried to boot the device from my microSD card I got the text through the UART as shown in the attached image

Can you clarify the bootmode pin settings you have on your board for SD card boot?

Thanks!

Hello Prashant,
The Bootstrap configuration is very similar to the BeeglePlay Board. BOOTMODE1, BOOTMODE3, BOOTMODE11 and BOOTMODE13 pins are connected to a common pin(/resized-image/__size/1165x696/__key/communityserver-discussions-components-files/791/Screenshot-2024_2D00_10_2D00_22-151752.png) and that is controlled through a user button on the programming board. While the button is pressed the Boot should start from the SD card(/resized-image/__size/1701x596/__key/communityserver-discussions-components-files/791/Screenshot-2024_2D00_10_2D00_22-152232.png)

Hi Vinayak,

How are you preparing the SD card for boot?

And can you confirm if the bootmode pins [B15:B0] are getting set to [0000111001000011] for SD card primary boot & UART backup boot?

Thanks!

Hello Prashant,
I have been following the same configuration as in the BeaglePlay design. As shown here( /resized-image/__size/1899x1677/__key/communityserver-discussions-components-files/791/Screenshot-2024_2D00_10_2D00_28-115730.png) the BOOTMODE3, BOOTMODE11, and BOOTMODE13 are connected to a user button to switch between the boot modes(/resized-image/__size/1701x240/__key/communityserver-discussions-components-files/791/0820.Screenshot-2024_2D00_10_2D00_22-152232.png). I am pressing the switch to get it into the SD FS boot mode.
Could you please share me a bootable image to debug the process? I doubt the iso i am running is not correct. Please help me with it.

VINAYAK M K said:

Could you please share me a bootable image to debug the process? I doubt the iso i am running is not correct.

What image are you using & how are you flashing it to SD card?

Hi Prashant,

I have used the BeaglePlay Debian, which was flashed with the BeaglePlay Debian flasher. Do you have any other suggestions that should be tried?

Thanks

Hello,

VINAYAK M K said:

I have used the BeaglePlay Debian, which was flashed with the BeaglePlay Debian flasher.

I have checked the Image File attached in that BeaglePlay page & see that it contains the `tiboot3.bin` for GP device. And you seem to be using HSFS device.

I would recommend you to once try out the following TI SK-AM62 EVM WIC image where the default `tiboot3.bin` is for HSFS device & see if your board boots.

https://dr-download.ti.com/software-development/software-development-kit-sdk/MD-PvdSyIiioq/10.00.07.04/tisdk-default-image-am62xx-evm.rootfs.wic.xz

More artifacts are available here:

https://www.ti.com/tool/download/PROCESSOR-SDK-LINUX-AM62X/10.00.07.04

Regards,

Prashant

Thank you so much for the information, Prashant. I will get back once we complete these steps and test it out.

Hello Prashant, We have tried the steps you have suggested and the result is still the same. The UART console still outputs  CCC.... May I know where should i specifically concentrate and debug this issue?