PSOC™ 4000T
Overview
The CY8CPROTO-040T is a prototyping kit based on the PSOC™ 4000T family, featuring a PSOC™ 4000T (CY8C4046LQI-T452) microcontroller with an Arm® Cortex®-M0+ core running at up to 48 MHz.
Key features include 64 KB flash, 8 KB SRAM, CAPSENSE™ low-power sensing, and an onboard KitProg3 programmer/debugger with USB Micro-B connectivity.
Hardware
SoC: PSOC™ 4000T (CY8C4046LQI-T452)
CPU: Arm® Cortex®-M0+ at 48 MHz
Flash: 64 KB
SRAM: 8 KB
Peripherals: TCPWM, SCB (UART/SPI/I2C), MSCLP (CAPSENSE™)
Debug: Onboard KitProg3 (SWD + UART bridge)
Power: USB powered via Micro-B connector (5V operating)
For more information about the PSOC™ 4000T and CY8CPROTO-040T:
Kit Contents
PSOC™ 4000T Prototyping Kit board
USB-A to Micro-B cable
Quick start guide
Supported Features
The cy8cproto_040t board supports the hardware features listed below.
- on-chip / on-board
- Feature integrated in the SoC / present on the board.
- 2 / 2
-
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files. -
vnd,foo -
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.
cy8cproto_040t/cy8c4046lqi_t452 target
On-target memory for this board target: 8 KiB of RAM, 64 KiB of Flash.
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M0+ CPU1 |
|
ARM architecture |
on-chip |
Infineon Serial Communication Blocks (SCB) node1 |
|
Clock control |
on-chip |
||
on-chip |
Generic fixed-rate clock provider1 |
||
on-chip |
|||
Counter |
on-chip |
Infineon TCPWM counter2 |
|
Flash controller |
on-chip |
Infineon CAT1 flash controller1 |
|
GPIO & Headers |
on-chip |
||
on-chip |
Infineon Shared GPIO Set1 |
||
Interrupt controller |
on-chip |
ARMv6-M NVIC (Nested Vectored Interrupt Controller) controller1 |
|
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
MTD |
on-chip |
Flash node1 |
|
Pin control |
on-chip |
Infineon CAT1 Pinctrl Container1 |
|
PWM |
on-chip |
Infineon TCPWM PWM2 |
|
Serial controller |
on-chip |
Infineon CAT1 UART1 |
|
SRAM |
on-chip |
Generic on-chip SRAM1 |
|
Timer |
on-chip |
ARMv6-M System Tick1 |
|
on-chip |
Infineon TCPWM Timer2 |
||
Watchdog |
on-chip |
Infineon CAT1 Watchdog1 |
Connections and IOs
LEDs
Name |
GPIO Pin |
|---|---|
LED3 |
P1.0 (active high) |
LED1 |
P3.0 (active low) |
Default Zephyr Peripheral Mapping
Pin |
Function |
Usage |
|---|---|---|
P2.3 |
SCB0 UART TX |
Console TX |
P2.2 |
SCB0 UART RX |
Console RX |
P1.0 |
GPIO |
LED3 (subject to J6) |
P3.0 |
GPIO |
LED1 / Button SW4 (J6) |
Note
Verify the UART pin mapping above against the official board schematic before relying on it for production use.
Note
Switch SW2 must be set to the UART position to use the console over the KitProg3 USB-UART bridge. SW2 also selects the I2C pin routing when SCB0 is instead configured for I2C.
System Clock
The PSOC™ 4000T uses the Internal Main Oscillator (IMO) as the default system clock source. The clock path is:
IMO (Internal Main Oscillator): 48 MHz
CLK_HF: 48 MHz (system clock)
Serial Port
The PSOC™ 4000T has two SCB (Serial Communication Block) interfaces that
can each be configured as UART, SPI, or I2C. The Zephyr console output is
assigned to SCB0 (uart0), which is routed through the KitProg3
USB-UART bridge.
To use the UART console, set switch SW2 to the UART position. Without this, the KitProg3 USB-UART bridge is not connected to the SCB0 pins and the console will not be available.
Default communication settings are 115200 8N1.
Building
Here is an example for the Hello World application.
# From the root of the zephyr repository
west build -b cy8cproto_040t samples/hello_world
Programming and Debugging
The cy8cproto_040t board supports the runners and associated west commands listed below.
| flash | debug | attach | debugserver | rtt | |
|---|---|---|---|---|---|
| openocd | ✅ (default) | ✅ (default) | ✅ | ✅ | ✅ |
The CY8CPROTO-040T includes an onboard programmer/debugger (KitProg3) which can be used to program and debug the PSOC™ 4000T Cortex-M0+ core.
Infineon OpenOCD Installation
The ModusToolbox™ Programming Tools package includes Infineon OpenOCD. Alternatively, a standalone installation can be done by downloading the Infineon OpenOCD release for your system and extracting the files to a location of your choice.
Note
Linux requires device access rights to be set up for KitProg3. This is
handled automatically by the ModusToolbox™ Programming Tools installation.
When doing a standalone OpenOCD installation, this can be done
manually by executing the script openocd/udev_rules/install_rules.sh.
Configuring a Console
Connect a USB cable from your PC to the KitProg3 USB Micro-B connector on the CY8CPROTO-040T. Use the serial terminal of your choice (minicom, PuTTY, etc.) with the following settings:
Speed: 115200
Data: 8 bits
Parity: None
Stop bits: 1
Flashing
One time, set the Infineon OpenOCD path:
west config build.cmake-args -- "-DOPENOCD=path/to/infineon/openocd/bin/openocd.exe"
Build and flash the application:
west build -b cy8cproto_040t -p always samples/hello_world
west flash
One time, set the Infineon OpenOCD path:
west config build.cmake-args -- -DOPENOCD=path/to/infineon/openocd/bin/openocd
Build and flash the application:
west build -b cy8cproto_040t -p always samples/hello_world
west flash
You should see the following message on the console:
*** Booting Zephyr OS build vX.Y.Z ***
Hello World! cy8cproto_040t
Debugging
# From the root of the zephyr repository
west build -b cy8cproto_040t samples/hello_world
west debug
Once the GDB console starts, you may set breakpoints and perform standard GDB debugging on the PSOC™ 4000T Cortex-M0+ core.