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Hi,
I am a noob on Cypress Psoc 4 MCU.
We plan to use CY8C4024LQI-S401 to read analog input by ADC.
According to this page, there is no Capsense on this MCU.
http://www.cypress.com/part/cy8c4024lqi-s401
There are two questions.
Is CSD the same with Capsense?
Is there any way to convert an analog input into a digital data without Capsense on CY8C4024LQI-S401?
Thanks.
Solved! Go to Solution.
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Sorry for confusing you.
There is a CSD block in the CY8C4024LQI-S401 as well as other PSoC 4000 S-Series. But it is not used for a Capacitance Sensing. However the CSD block can be used as a set of analogue blocks like Current DAC, 1.2V Comparator, and Sigma-Delta modulator.
So, you can use the ADC feature using the CSD block on the chip.
Regards,
Noriaki
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Capsense was made to detect button presses and/or slider moverments on PCB material.
"Reading" an analog value is done by converting an analog pin's input value to a digital value which you may read and process.
Drop an ADC component onto your topdesign and click right. Choose "Find code example" and start reading...
Bob
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CSD is an acronym of "CapSense Sigma Delta" meaning a capacitance sensing solution using sigma delta modulation technology. So, CSD is equivalent to CapSense in this case.
Because the PSoC 4000S chip has less analogue resource except the CapSense block, I don't find any other solution to convert an analog value to an digital value without using the CapSense block.
Regards,
Noriaki
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Thank Noriaki and Bob.
I got confused about CSD and "Capsense supported".
I though Capsense and CSD are equivalent.
CY8C4024LQI-S401 doesn't support Capsense, so it should has no CSD block.
I was wrong.
Looks like this chip has a CSD block but not support Capsense.
Thanks.
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Sorry for confusing you.
There is a CSD block in the CY8C4024LQI-S401 as well as other PSoC 4000 S-Series. But it is not used for a Capacitance Sensing. However the CSD block can be used as a set of analogue blocks like Current DAC, 1.2V Comparator, and Sigma-Delta modulator.
So, you can use the ADC feature using the CSD block on the chip.
Regards,
Noriaki
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Thanks