PSoC™ 6 Wi-Fi Bluetooth® pioneer kit guide, Document Number. 002-22677 Rev. *I
48
Hardware
Notes:
1. If you are programming the PSoC™ 6 MCU using a MiniProg4 connected to J11, make sure that
the voltage is set at either 2.5 V or at 3.3 V.
2. If you want to program the PSoC™ 6 MCU using MiniProg4 at the 1.8 V condition, make sure
that you are populating the 0-ohm resistor R196 on the board. This is to bypass the overvoltage
protection circuit, as the protection circuit does not allow programming of the device at 1.8 V.
3. Powering PSoC™ 6 through MiniProg4 sometimes turns on the LED4. This is due to the reverse
conduction from PSoC™ 6 VDD domain to the VCC_3V3 domain when there is no USB device
connected at J10.
4. Do not mount the CY8CKIT-028-Display shield on the PSoC™ 6 pioneer board at the time of
programming and debugging through the J11 header. This causes extra load on the external
programmer, and hence the programmer may not be able to power-up the PSoC™ 6 supply
domain.
3.3.2
PSoC™ 6 MCU user button (SW2)
By default, this button connects the PSoC™ 6 MCU pin to ground when pressed; you need to
configure the PSoC™ 6 MCU pin as a digital input with resistive pull-up for detecting the button
press. If you want to sense active HIGH on the PSoC™ 6 MCU pin, resistor R67 should be removed
and R68 should be populated. This will connect the button connecting the PSoC™ 6 MCU pin to
VBACKUP when pressed. Additionally, footprints are provided for pull-up and pull-down resistors
that can be populated if external pull-up is required.
Figure 3-10. Schematics of PSoC™ 6 MCU user button (SW2)
3.3.3
SWD connector receptacle (J29)
This connector can be used for conductive measurements and can also be used to connect external
antenna. This is not loaded by default. Remove L1, populate L13, and the SWD connector (J29) to
connect the external antenna. See the BOM for recommended part numbers.
Figure 3-11. Schematics of SWD connector receptacle (J29)
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