CapSense® Scan Time Calculation - KBA218858

Version: **

 

Question:

In CSD mode, how long does it take to scan a sensor in one cycle?

 

Answer:

The following equation can be used for calculating the scan time:

 

1.png

 

T = Time of scan a sensor in one cycle
HFCLK = High-speed clock of PSoC device
Moddivider = modulator divider

 

Therefore, when the modulator divider, scan resolution, or both are changed, the scan time will be changed accordingly.

 

For more information about the CSD theory, see the PSoC4 and PSoC Analog Coprocessor CapSense Design Guide.