Part Number: MCU-PLUS-SDK-AM243X
Other Parts Discussed in Thread: AM2431
Tool/software:
Hello,
I developed customized HW using AM2431 and it works fine after initializing SoC using DEV Mode.
Due to limitations in the size of the PCB, the final PCB was developed to remove the switch for selecting the boot mode and to only have a resistor for selecting the SPI Flash mode.
From the AM2431 manual, I thought that if NULL SBL is stored on the SPI Flash, it will boot normally without initializing the SoC using a script in DEV mode.
But, It does not work.
I tested it with the procedure below.
1. Prepare new PCB (new AM2431 & no SPI Flash, boot mode is selected to OSPI boot mode)
2. Flashing Null SBL on th SPI flash using flashing equipment and soldering SPI Flash to the new PCB.
3. Turn on the PCB (I expected null boot to run normally, but it didn't)
It will work correctly with the precedure below.
1. Prepare new PCB
2. Select Dev boot mode & initialize Soc using script
3. Flashing null boot using SPI Flash mode.
3. Turn on the PCB (work correctly)
I would like to know how to get my application running without initializing the new PCB in DEV boot mode.
Thanks,
