AMUXBUS

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yangyong
Level 5
Level 5
Distributor - Jingchuan(GC)
5 comments on blog First comment on blog 50 questions asked

Both  adc and capsese  have AMUXBUS,  Whether the AMUXBUS is the same.  When using AMUXBUS in ADC and Capsense at the same time, will  interfere with each other?  

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DennisS_46
Employee
Employee
100 sign-ins 50 likes received 50 solutions authored

ADC and CaoSense can coexist. There are two AMuxBuses. The buses run all the way around the chip, but there are "bus breaker" switches that can separate AMuxBus sections. You can see this clearly in the analog routing view in the DWR. If you are careful to have ADC inputs and CapSense inputs on separate ports, this makes the routing very easy.
Here's a schematic and analog routing view of a 4 input ADC and 4 CapSense buttons done in CY8C4247. It routes and builds easily.

DennisS_46_1-1663954353756.png

 

DennisS_46_0-1663954257421.png

If it makes it more convenient for your PCB routing, you can re-assign the pins in the Pins view of the DWR.
---- Dennis Seguine (PSoC Applications Engineer)

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DennisS_46
Employee
Employee
100 sign-ins 50 likes received 50 solutions authored

ADC and CaoSense can coexist. There are two AMuxBuses. The buses run all the way around the chip, but there are "bus breaker" switches that can separate AMuxBus sections. You can see this clearly in the analog routing view in the DWR. If you are careful to have ADC inputs and CapSense inputs on separate ports, this makes the routing very easy.
Here's a schematic and analog routing view of a 4 input ADC and 4 CapSense buttons done in CY8C4247. It routes and builds easily.

DennisS_46_1-1663954353756.png

 

DennisS_46_0-1663954257421.png

If it makes it more convenient for your PCB routing, you can re-assign the pins in the Pins view of the DWR.
---- Dennis Seguine (PSoC Applications Engineer)

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yangyong
Level 5
Level 5
Distributor - Jingchuan(GC)
5 comments on blog First comment on blog 50 questions asked

thank you very much!

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