RX14T Fast Prototyping Board

Overview

The FPB-RX14T, a Fast Prototyping Board for the RX14T MCU, enables users to seamlessly evaluate the features of the RX14T MCU and develop embedded systems applications. Users can use on-board features along with their choice of popular ecosystem add-on modules to bring their big ideas to life

The key features of the FPB-RX14T are categorized in two groups (consistent with the architecture of the board) as follows:

MCU Native Pin Access

The FPB-RX14T includes:

R5F514T5AMFM MCU (referred to as RX MCU)
- Max 48 MHz, 32-bit RX CPU (RXv2)
- 128 KB ROM, 12 KB RAM
- 64-pin, LFQFP package
Native pin access through 2 x 32-pin breakout pin headers (not fitted)
RX MCU current measurement point for precision current consumption measurement
RX MCU on-chip oscillators as clock

System Control and Ecosystem Access

Two 5 V input sources
- USB
- External power supply (using 2-pin header [not fitted])
On-board debugger / programmer (E2 emulator On Board (referred as E2OB, FINE Interface))
User LEDs and switches
- Two User LEDs (green)
- Power LED (green) indicating availability of regulated power
- Debug LED (yellow) indicating the debug connection
- One User switch
- One Reset switch
Two popular ecosystem expansions
- Two Digilent Pmod (Type-2A [expanded SPI], Type-3A [expanded UART] and Type-6A [expanded I2C]) connectors
- Arduino Uno R3 (referred to as Arduino) connector
SCI Interface Connector (not fitted)
- Supports UART connection
- Supports connection with the MC-COM Renesas Flexible Motor Control Communication Board

Supported Features

The fpb_rx14t 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.

Programming and Debugging

The fpb_rx14t board supports the runners and associated west commands listed below.

	flash	debug

Applications for the fpb_rx14t board can be built, flashed, and debugged using standard Zephyr workflows. Refer to Building an Application and Run an Application for more details.

Flashing

The program can be flashed to FPB-RX14T using the E2 Lite debugger by connecting the board’s 14-pin debug connector to the host PC. Here’s an example for building and flashing the Hello World application.

# From the root of the zephyr repository
west build -b fpb_rx14t samples/hello_world
west flash

Debugging

You can use Renesas Debug extension on Visual Studio Code for a visual debug interface. The configuration for launch.json is as below.

{
  "version": "0.2.0",
  "configurations": [
      {
          "type": "renesas-hardware",
          "request": "launch",
          "name": "RX14T Renesas Debugging E2lite",
          "target": {
              "deviceFamily": "RX",
              "device": "R5F514T5",
              "debuggerType": "E2LITE"
              "serverParameters": [
                  "-uUseFine=", "1",
                  "-w=", "0",
              ],
          }
      }
  ]
}