Specifications

CY8CKIT-042 PSoC 4 Pioneer Kit Guide, Doc. # 001-86371 Rev. *D 107
A.4 Use of Zero-ohm Resistors and No Load
A.5 Error in Firmware/Status Indication in Status LED
Note: LED status is not applicable when a custom project is running in PSoC 5LP.
Unit Resistor Usage
Power supply R2 Solder zero-ohm resistors to access voltage from VBUS (USB).
I2C connection between PSoC 5LP
and PSoC 4
R24 and R25
Unsolder the resistors to communicate with an external PSoC
using the PSoC 5LP. Removing these will disable the PSoC 4 pro-
gramming by the PSoC 5LP device.
PSoC 4/external PSoC program/
debug header
R32, R33, and
R34
Unsolder the resistors to disconnect SWD lines from the PSoC 4.
Use J6 to connect and program an external PSoC.
Protection circuit R46 Solder zero-ohm resistors to bypass the entire protection circuitry.
CapSense tuning circuitry R1
Used when RBleed mode of the CSD is used. To use this feature,
you must populate an Rbleed resistor. Refer to the CapSense com-
ponent datasheet.
CapSense shield setting R44, R45
Unsolder R45, which connects the shield to ground and solder R44
with zero-ohm resistors to connect Vref via P0_1.
PSoC 4 R4, R6
Unsolder R4 to remove supply to VTARG and solder zero-ohm
resistors R6 to supply P4_VDD with VDD instead of J13.
PSoC 5LP programmer/debugger R11, R12, R14,
R15, R16
For future use.
R5 Unsolder the zero-ohm resistor to cut the VDD supply to PSoC 5LP.
R7 For future use.
User Indication Scenario Action Required by user
1
LED blinks at a fast rate
(ON Time = 0.25s, OFF Time = 0.25s)
Bootloadable file
is corrupt
Bootload the *.cyacd file over the USB interface,
which is shipped with PSoC Programmer using the
Bootloader Host GUI shipped with PSoC Creator. The
files are located in the PSoC Programmer root instal-
lation directory.
2
LED blinks at a slow rate
(ON Time = 1.5s, OFF Time = 1.5s)
Entered Boot-
loader by press-
ing the PSoC 4
Reset switch
a) Unplug power and plug it in again if you entered
this mode by mistake; the LED gives the indication.
b) If the mode entry was intentional, bootload the new
*.cyacd file using the Bootloader Host tool shipped
with PSoC Creator.
3 LED glows steadily
Programmer appli-
cation is running
successfully
USB is enumerated successfully and the programmer
is up and running.The PSoC 4 device can now be pro-
grammed any time using the onboard PSoC 5LP pro-
grammer.