TDA4VM: How to get the result of the OSPI Controller polling the status register?

Hi,

I read some notes about OSPI inJ721E DRA829/TDA4VM Technical Reference Manual.

I want to know how to get the result of the OSPI Controller polling the status register?

Thanks.

Cherry Zhou：

Hi,

We've got the issue and escalated to E2E for more help as the link below, please expect the response:

e2e.ti.com/…/tda4vm-how-to-get-the-result-of-the-ospi-controller-polling-the-status-register

,

Cherry Zhou：

Hi,

Sorry for the late response here.

Jason Luo 说：I want to know how to get the result of the OSPI Controller polling the status register?

As the TRM mentions, this can be achieved by sending the RDSR opcode to the FLASH device and waiting until the device itself has indicated the write cycle has completed (until the Write in Progress bit has cleared to zero and the write enable latch bit has also cleared to zero or device is ready bit has set toone).

The address of the Write in Progress (WIP) register is a part of the flash data sheet.

Thanks.