This page is for quick tips to help you with RX MCUs, its software, tools, and boards.  If you have any tips, please let us know and we will include them here.  

Here are the frequently asked RX questions and answers to them.  There are a few tips and tricks also to help your journey with your development.  

This tip shows you how to use atomic bit operations.

Atomic bit operations on GPIO output (PODR) register

This tip shows you how to use the DTC chain transfer when servicing the data transfer in the multiple SCI SPI interfaces.

DTC chain example for multiple SCI SPI interfaces based on Code Generator Drivers

This tip shows you how to disable the flash access window to do chip erase using the Renesas Flash Programmer.

How to disable the Flash Access Window for Chip Erase

This tip shows you how to set the software configurable interrupt in the smart configurator.

How to configure Software configurable interrupt in the Smart Configurator

One key feature of the RX I2C-bus Interface (RIIC) is its support for up to three unique 7-bit or 10-bit slave addresses in I2C slave operation. This article explains how to enable multi-slave address detection in I2C slave operation using the RX RIIC Slave Code Generator Driver, and provides the brief instructions to address two use cases below.

How to enable multiple I2C Slave Addresses with RIIC Code Generator

This tip shows you how to use printf() operations.

How to enable/add Printf feature

Offers supplementary information for users intending to control Lock-bit using the Flash FIT driver (r_flash_rx), including a description of Lock-bit behavior and the corresponding Flash FIT driver operations.

How to use flash memory Lock-bit

This article introduces how to use e2studio to create two separate projects and merge the mot files of the two projects to run as a complete project, thereby achieving the specified functions.

How to Merge Two Separate Projects Using e2studio