TWR-k21F120MA

[harrisonyuan88]

Hello, I am recently designing a communication system using the TWR-K21F120MA. I want to use the UART communication interface. But i have got some problem. I cannot find the receiver and transmitter of UART on the board. I need to use at least 2 UARTs for my project.

[harrisonyuan88]

Hello Alice

Thank you so much for the reply. it is really helpful.

And i check the schematic of TWR-k21F120MA. Is there any possibility to use the UART0_RX,UART0_TX,UART1_TX and UART1_RX(A41-A44 of J4) in the following picture. I just want to wire the two UARTS with my device.

[Alice_Yang]

Hi Harrison,

If you only use the Tower demo board, do not change the board or add some other transmitter,

then  only the A43-A44 can used on this board, please pay attention it is UART2, sorry on this board , the virtual serial port and UART on TWR-SER use the same UART port.

BR

Alice

[Alice_Yang]

Hello Harrison,

Maybe you need Tover System:Tower System Modular Development Board Platform|NXP  ,

on the TWR-SER moduleSerial (USB, Ethernet, CAN, RS232/485) Tower System Module|NXP  , there is a receiver and transmitter of UART , please see the schematic to check

whether it can meet you, I attached it for you .  On the TWR-SER, there only one transmitter.

While on the TWR-K21F120MA board, there also another virtual serial port - J2, you can directly use it send/ receive data.

Hope it helps

Have a great day,
TIC

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