Andy Green wrote: > This is yet another case for an always-on MPU to solve it in future designs.
This one is actually a little bit trickier: even if we had that MPU, it could do nothing to change what the PMU is doing, since the PMU doesn't even get out of reset. From section 8.17.11 of the PMU manual: | The I2C-bus module is only enabled in the Active state when the | reset for the host controller is released What would solve these problems would be either to have I2C also available in Standby or the ability to load the initial PMU configuration from some EEPROM. A while back, when discussing "liberating" the PMU documentation with NXP, they said that something like such an EEPROM might well be part of some future product. Unfortunately, that doesn't help us at the moment. - Werner
