We are currently doing development with the TI AM3354 platform using the Android 2.3 SDK. For some reason, when we send sleep/wakeup commands to the AM3354 through the GPIO, the system sometimes crashes/hangs. We see these crashes happening at a rate of about 1 out of 500 sleep/wakeup cycles but the occurrences are highly variable. We are using DDR3 and have already done software leveling, but it does not help solve the problem. We also use the UART to debug. The last debug text from the UART from Android, we get the normal sleep/power down text.
Then we measure the board current, it`s between wakeup and sleep. So we think the system hangs when it is going to sleep, but we did not know the source of the problem.
-Dore
