Cypress Semiconductor CapSense® Controller kit CY3280-BK1 CY3280-BK1 CY3280-BK1 Manual De Usuario

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CY3280-BK1 Universal CapSense Controller Quick Start, Doc. # 001-37959 Rev. **

Tune a PSoC Express CapSense Project

4.9 In the User Pin Assignment window, click Unassign All Pins. All drivers move to the Unas-

signed Drivers list.

4.10 To assign drivers to pins, drag and drop drivers from the Unassigned Drivers list onto a pin. 

Assign the CapSenseProperties_ExternalCap driver to port P0[3].

Assign the rest of the drivers according to the following table.

4.11 Click Next. PSoC Express builds your project (this may take a few minutes).

4.12 Connect your computer to the CapSense test board ISSP Connector (J3) 

 using the PSoC 

MiniProg and a USB cable.

4.13 Select Program 

 Programmer. When PSoC Programmer opens, click Program.

When programming has successfully completed, close PSoC Programmer and return to PSoC 
Express.

4.14 Click the Monitor button 

.

4.15 Connect your computer to the CapSense test board ISSP Connector (J3) 

 using the USB-

I2C bridge and a USB cable.

4.16 From the Power Selection menu, select 5V Supplied.

4.17 Click the Start  

button.

4.18 Right-click the Button1 driver and select Show Tuner to open the CSA Button Tuner Window.

4.19 Touch Button1 with your finger. You can easily see the button is too sensitive because the sen-

sor easily reports a full-finger contact.

4.20 Increase the Finger Threshold to 250 and the IDAC setting to 250. Changing the IDAC setting is 

inversely related to the sensitivity of the button. Therefore, increasing the value decreases the 
sensitivity. Any Raw Count below the Finger Threshold does not register as a hit.

4.21 Click Apply to Board to write the changed parameter to Flash on the device.

Button1_CSA

P1[6]

Button2_CSA

P1[3]

CapSenseProperties_ExternalCap
(previously assigned in Step 4.10)

P0[3]

I2CSlave I2CSCLPin

P1[1]

I2CSlave I2CSDAPin (automatically 
assigned when the SCL pin is assigned)

P1[0]

LED1

P2[5]

LED2

P2[7]