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Recent content by titusece

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    How to add support for ADC when that option is not available in uC

    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...
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    How to add support for ADC when that option is not available in uC

    Thanks Dana and Barry. Those are really helpful and appreciate that. Currently my team also wants to explore without ADC and Comparator but just use bunch of resistors and switch FETs (simple circuit and very minimal space) and need to find 25%, 50%, 75% and 100% of battery level (3.7V) Any help...
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    How to add support for ADC when that option is not available in uC

    Thanks Dana for your reference and really helpful. Can you also pls suggest available low cost SPI/I2C based ADC or simple Op-amp based ? My requirement is that would like to measure voltage of Rechargeable Lithium-ion Polymer Battery 3.7V Thanks for your response.
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    How to add support for ADC when that option is not available in uC

    Thanks Klaus. My requirement is that my SOC doesn't have a ADC on it but it has audio interface to connect external i2c+i2s based CODEC, so am thinking of using LINEIN pin of CODEC to feed the voltage and read CODEC register to get the digital value of my analog voltage. Hope you get it. :)...
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    How to add support for ADC when that option is not available in uC

    Thanks Dana. I am using i.MX8M Mini SOC and unable to see ADC in there. https://community.nxp.com/t5/i-MX-Processors/Is-there-support-for-ADC-in-i-MX-8M-Mini-series-of-processors/m-p/997391
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    How to add support for ADC when that option is not available in uC

    Thanks for your replies. Actually most of the microprocessor doesn't have support for ADC interfaces like microcontroller does. These uC does have CODEC on it to do audio input/output processing to connect Line Input & Output for headphone jack connections, and not for just ADC/DAC purpose. but...
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    How to add support for ADC when that option is not available in uC

    Hello, I have a requirement to read analog voltage from Microprocessor LINEIN pin (Line Input for audio jack) As i.MX8 doesn't have ADC i would like make use LINEIN pin to send analog voltage (0 to 3.3) and want to get as digital value by reading codec registers. Is it possible ? sharing any...
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