Part Number: AM6442
Other Parts Discussed in Thread: SK-AM64B
Dear TI Experts,
I am a beginner working with the AM6442 (SR 2.0) SoC chip on a custom platform designed based on the SK-AM64B evaluation board circuitry (without an EEPROM). I have encountered an issue and would appreciate your assistance in resolving it.
1. Initially, I installed the official SDK 09.00.00.03 (without any modifications) on the SD card. I could successfully see boot messages through the CORTEX-A53 UART, indicating that the boot process progressed to the stage shown in the attached screenshot.
2. However, when I switched to version 09.02.01.09 (without any modifications), I no longer saw any messages through the CORTEX-A53 UART after powering on.
3. Even when I reverted back to using the SDK 09.00.00.03 SD card, the UART still did not display any messages.
I'm curious as to why this is happening and would appreciate your guidance and suggestions.
Additionally, could it be that the above actions automatically updated the internal bootloader to the latest version? But due to some issues with the latest bootloader, the system fails to boot. Even when reverting to the older SDK 09.00.00.03 version, because the internal bootloader automatically recognizes the version and loads only newer ones, could this be why I'm stuck in a situation where the new version fails to boot?
The source of SDK downloads are as follows:
PROCESSOR-SDK-LINUX-AM64X — Processor SDK Linux for AM64x
SDK 09.02.01.09: [https://www.ti.com/tool/download/PROCESSOR-SDK-LINUX-AM64X/09.02.01.09](www.ti.com/.../09.02.01.09)
SDK 09.00.00.03: [https://www.ti.com/tool/download/PROCESSOR-SDK-LINUX-AM64X/09.00.00.03](www.ti.com/.../09.00.00.03)
File: tisdk-default-image-am64xx-evm.wic.xz
Thank you for your assistance!
PS: Please ignore the issue of “EEPROM not available at 0x50” at this moment. This will be my second question to overcome.
