Tool-based code generation is performed with the RA4W1 development environment, the customer can select a standard profile or generate a custom profile in e2Studio in accordance with the peripheral functionality code generation. This flexibility makes it very easy to use. Renesas provides the optimal development environment for each customer development phase. In the chip performance evaluation phase, Renesas provides the GUI evaluation tool that runs on a PC. This tool allows customers to confirm the Bluetooth^® performance and functionality. Also, in the software development phase are the IDE, QE for BLE, and Smart Configurator which also support user application development.