CC3220: Host driven factory reset procedure

Part Number:CC3220

Hi,

I'm trying to figure out what the exact procedure is to execute a host driven factory reset on the CC3220.

The simplelink programmer's guide () is not very clear on this.

As far as I can tell, with SOP[2:0] fixed on 000, I should just run the following code:

_i32 slRetVal;
SlFsRetToFactoryCommand_t RetToFactoryCommand;
_i32 Status, ExtendedStatus;
RetToFactoryCommand.Operation = SL_FS_FACTORY_RET_TO_IMAGE;
Status = sl_FsCtl( (SlFsCtl_e)SL_FS_CTL_RESTORE, 0, NULL , (_u8 *)&RetToFactoryCommand ,
sizeof(SlFsRetToFactoryCommand_t), NULL, 0 , NULL );
if ((_i32)Status < 0)
{
/*error*/
//Status is composed from Signed error number & extended status
Status = (_i16)Status>> 16;
ExtendedStatus = (_u16)slRetVal& 0xFFFF;
break;
}
//Reset
sl_Stop(10);
//sl_Start(NULL, NULL, NULL);
//CC3220
 PRCMHibernateCycleTrigger();

But is this all? Is this supposed to fully execute the entire factory reset?

From what I can see, this seem to do -something-, but after a while seems to reset the device which then fully hangs. (nothing happens/boots. Nor the old or current image)
Even when unpowering/repowering and waiting a long time, nothing seems to happen.
Only when I toggle the RESET line, after 10+s the system seems to reboot into a valid image again.

Is this behavior to be expected? And/or what is the full procedure to execute a host-driven factory reset? Am I missing something, since the toggling of the reset was not outlined in the datasheet?

Thanks for any clarification.

Arnout