Other Parts Discussed in Thread: TPL5110
I have a number of posts on this forum but non seemed to address my issue directly please forgive me if I missed the answer.
I have a device that naps between sensor interrupts and wakes every hope at the top of the hour to report. The process of napping / waking and reporting is already implemented. I have the TPL5010 with a 1 hour 5 minute interval to reset the device if it does not report as the watchdog is "pet" during the reporting process.
Configuration:
- Wake - from the TPL5010 goes to a GPIO pin on the microcontroller with a RISING interrupt
- Done - from the microcontroller to the TPL5010
- Reset - from the TPL5010 to the device's reset pin
- Two 270k resistors in parallel set an interval of just over 1 hour
This solution requires some alignment of the watchdog interval to the hourly wake cycle. If both are aligned, the device wakes at the top of the hour, pets the watchdog and goes to sleep. The watchdog gets petted during the interval and therefore never needs to send a reset to the device. If, however, the TPL5010 is not aligned to this interval, it will send WAKE signals during the hour and will cause the device to come out of napping state unnecessarily.
Can I set the timing of the TPL5010's interval to align to the hourly schedule? I had assumed that when I pet the watchdog, it would reset the next interval but apparently this is not the case.
Thanks,
Chip