Hello,
we're using armstoneA9r3 board with iMX6q and we want to connect a battery for the RTC.
We also want the battery to be recharged.
Is there any recommended/verified solution to connect the battery and implement the charging circuit?
Thanks,
Damiano
We don't have a solution for a charging circuit.
The charging circuit depends on the power source you selected (rechargable batteries of different technologies, SuperCaps, etc.).
So ask the battery manufacturer for a solution for your battery.
Ok, thanks.
Just another question: what is the battery voltage range for the armStoneA9r3?
In the "Hardware Documentation armStone A9r2", I found min 0,9V - max 5,5V (VBAT for RTC power), but in the IMX6q datasheet I found min 2,8V - max 3,3V.
Regards,
Damiano
the armStoneA9r3 uses an external I2C RTC. 0.9-5.5V is the allowed input range for this chip.
Is the external RTC chip the PCA8565?
yes
