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.. _renesas-ra_intro:
Getting started with MicroPython on the Renesas RA
==================================================
This tutorial will guide you through setting up MicroPython,
getting a prompt, using the hardware peripherals, using internal
flash file system, reset and boot modes, and Factory reset the
internal file system.
Requirements
------------
You need a board. For the information of available boards,
please refer to the general information about Renesas RA port: :ref:`renesas-ra_general`.
You need a USB-Serial conversion cable to connect the board and your PC.
Please get a type with separate signal pins so that you can connect to
the UART TX and RX pins on the board.
Flashing the MicroPython image with J-Link OB
---------------------------------------------
The board has a builtin programmer interface called J-Link OB.
Using the J-Link Software, you can flash the binary image "firmware.hex"
of MicroPython on the board via J-Link OB.
You can download the J-Link Software and Documentation pack from https://www.segger.com/downloads/jlink/.
After installing J-Link Software, start J-Flash-Lite program. Then specify following device in Device select menu in J-Flash-Lite.
=============== ================
Board Device
--------------- ----------------
EK-RA4M1 R7FA4M1AB
EK-RA4W1 R7FA4W1AD2CNG
EK-RA6M1 R7FA6M1AD
EK-RA6M2 R7FA6M2AF
RA4M1 CLICKER R7FA4M1AB
=============== ================
Select a firmware hex file in Data File of J-Link-Lite, and push Program Device button to flash the firmware.
Getting a prompt of MicroPython
-------------------------------
Cross connect USB-Serial conversion cable RX/TX/GND pins to TX/RX/GND pins on the board.
=============== =============== ===============
Board USB Serial RX USB Serial TX
--------------- --------------- ---------------
EK-RA4M1 P411 P410
EK-RA4W1 P205 P206
EK-RA6M1 P411 P410
EK-RA6M2 P411 P410
RA4M1 CLICKER P401 P402
=============== =============== ===============
Access the MicroPython REPL (the Python prompt) via USB serial or UART with 115200 baud rate, 1 stop bit and no parity bit using your favorite terminal software, picocom on Linux or Tera Term on Windows. You can try on Linux::
$ picocom /dev/ttyACM0
You can see the MicroPython REPL prompt like below::
MicroPython v1.20.0 on 2023-04-27; EK-RA6M2 with RA6M2
Type "help()" for more information.
>>>
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