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Home/SCI_UART

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techfreak
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techfreak
Asked: July 30, 2022In: Microcontroller

SCI_UART in Renesas EK-RA4M2

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Just got the EK-RA4M2. Downloaded example code from here (EK-RA4M2 – Evaluation Kit for RA4M2 MCU Group | Renesas). Connected 1) RXD MISO P410 ——-> TXD Pin of USB-UART 2) TXD MOSI P411 ——-> RXD Pin of USB-UART 3) Common GND as ...Read more

Just got the EK-RA4M2. Downloaded example code from here (EK-RA4M2 – Evaluation Kit for RA4M2 MCU Group | Renesas). Connected

1) RXD MISO P410 ——-> TXD Pin of USB-UART
2) TXD MOSI P411 ——-> RXD Pin of USB-UART
3) Common GND

as readme.txt.

However, there is no serial activity. any suggestions?

Read less
EK-RA4M2renesassciSCI_UARTuart
  1. dev krishnan
    Added an answer on August 1, 2022 at 4:25 pm

    The pins P410, P411 are connected to the SCI0, and pins P601, P602 are connected to the SCI9. Have you changed the channel number in the UART stack like this? Also make sure that the Rx/Tx pins have both CMOS output type:

    The pins P410, P411 are connected to the SCI0, and pins P601, P602 are connected to the SCI9. Have you changed the channel number in the UART stack like this?

    Also make sure that the Rx/Tx pins have both CMOS output type:

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