Thanks Dana. I am using i.MX8M Mini SOC and unable to see ADC in there.The IMX8 shows it as having 2 12 bit ADC s -
Note there are a number of methods for an ADC less processor to easily manage an
external ADC solution, from single slope to SAR and beyond.
Regards, Dana.
Thanks Klaus.Hi,
A CODEC includes an ADC... besides MUX, DAC and more.
Since there an ADC... use it.
You gave no requirements.
So I don't know what to recommend.
Klaus
There's a lot of serial-interface ADCs out there (your mention
of I2C?) that might do the job.
I don't believe CODECs are necessarily hardware or including
the ADCs that turn audio / video into bit streams. I have a copy
of a video viewer that's pretty helpless until you download a
package of various CODECs (therefore an existence proof
that a CODEC "can" be software-only). Of course a standalone
CODEC hard product might well incorporate more of the signal
chain, if the end application values this integration.
2-212 has a RC exponential converter with just R and C -Another way to do this (with the same circuit) is to just set the output high and count how long it takes to trip the comparator. It's, again, not too accurate, but you haven't said what you need for accuracy.
But, if it was me, I'd go with a serial ADC. Same space as an opamp and way more accurate.
What exactly do you mean with "battery level"?Hi Klaus, thanks for your suggestion, actually fuel gauge was designed and doesn't support battery level reading but charge status and no i2c interface.
Hi Klaus, thanks for your suggestion, actually fuel gauge was designed and doesn't support battery level reading but charge status and no i2c interface.
Thanks Dana, yes I have seen that it needs timer capture to measure pulse, I have done something below using voltage divider based on i.MX DC characteristics of GPIO, I derived resistor values and used to get different level of voltages from three pins. And also with P-MOSFET I can send signal from MCU to this enable the divider to read voltages of battery whenever needed so that power leakage can be avoided.
Does it makes sense ?
PS: I am not into HW design, used to work on SW side.
thanks for your help & insights so far! Really appreciate that.
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