DRA821U-Q1: OSPI NOR boot problem

we use flash: S28HS512TGABHM010

Can you provide additional information on this debug effort?  Is this a new design/bring up or an updated design with memory change?  Have you verified the processor has exited the reset sequence (does RESETSTATz go high)?  Is the memory contain a flashed image?  If yes - how was it flashed (prior to board assembly or using processor peripheral flashing tool?  It could be you should be using xSPI rather than OSPI to boot this device.  Looping additional TI experts to help clarify.

Yes, it is new design. but it can boot up from USB DFU and eMMC boot already. we want to use OSPI boot up also.

yes, OSC exited reset sequence already, yes, we flashed the image. we flashed via USB DFU.

you meant xSPI is more reliable than OSPI flash?

Hi,

What is the flash part being used here?

Regards,
Tanmay

we use  S28HS512TGABHM010 same as DRA821U2-Q1 EVM board

Hi,

Max Chen1 said:

you meant xSPI is more reliable than OSPI flash?

This is not the case. xSPI is more flexible than OSPI. OSPI needs the boot mode to be 1S-1S-8S mode. xSPI can switch between 1S-1S-1S and 8D-8D-8D based on the SFDP table in the flash.

Are you able to connect to SoC via JTAG? Can you get the value of 

1. reg 0x43000030
2. check Program Counter of mcu1_0. This will let us know where in the boot process we are.

Also can you try setting the bit 6 of main bootmode pins (SYS6).

Regards,
Tanmay