Hello Mike, I was looking for a solution during some days, I found I have to implement my own 'putchar' function but I don't how to do it exactly, for the moment I'm using the R_UART2_Send and it's enough for my project. It will be great know how to use printf in my projects because I used in other projects and MCUs. I'm using GNU toolchain for RL78 and e2 studio IDE Can you help me?? Thank you! BR, daniel
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