3 ms·
I hate that chip. I had a client pick it for a project that they wanted low power. You can't put the chip fully to sleep. There is errata on the NVM controller
by not_the_fda 4y ago
I hate that chip. I had a client pick it for a project that they wanted low power. You can't put the chip fully to sleep. There is errata on the NVM controller that it doesn't always wake from sleep so when the chip wakes it executes garbage. You have to keep the NVM controller powered during sleep to recover from sleep.
- 4gotunameagain 4y agoI was able to get this microcontroller into deep sleep of the range of a few microamps, and would always reliably wake up from the RTC interrupt. I wonder what caused your issues ?
- not_the_fda 4y agoYou may have had newer silicon that fixed the issue, or you didn't have NVMCTRL fully asleep. Its in the errata "1.14.2 Power-down Modes and Wake-up From Sleep"
- maguirre 4y agoYou too? I worked with the samr21 (includes a 802.15.4 radio. I had this exact same problem!