I am trying to replicate the steps shown in the document at http://processors.wiki.ti.com/index.php/UserGuidePowerMgmtAM35xx to Suspend to RAM. I am running 03.00.01.06 with the am3517_evm_defconfig with no changes or modifications on the experimenters kit.
I see the following in the terminal when attempting to follow the instructions:
/ # echo -n 3 > /debug/pm_debug/wakeup_timer_seconds
/ # echo mem > /sys/power/state
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.01 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
tlv320aic23_write cannot write 000 to register R9
PM: Resume timer in 3 secs (98304 ticks at 32768 ticks/sec.)
After that last printout, the board is dead, and does not wake up to keypresses in the terminal or after the 3 second timeout. What version of the PSP was this tested against?
I eventually need this to
work on a custom board designed by my company.
Any help in debugging this problem would be greatly appreciated.
Thanks
