TM4C1294NCPDT: Usage of UARTprintf function for UART 3 Port

Balaji TS2

Part Number: TM4C1294NCPDT

Greeting for the Day,

I am currently working on TM4C1294XL evaluation kit. I am using UARTprintf API from uartstdio.h header file for sending data to serial console. Where in this I am using UART 0 port and UARTprintf function works fine with UART 0. Now I want to work with UART port 3, can I use UARTprintf function for this port.

If I can use means, how to configure the port 3.

Part No: TM4C1294NCPDT

Thank you.

over 4 years ago

+1 Ralph Jacobi over 4 years ago

TI__Guru*** 135355 points

Hello Balaji,

UARTStdioConfig only supports UART 0 through 2 as provided.

You can edit this by expanding how the uartstdio.c file works and add UART port 3 to g_ui32UARTPeriph, g_ui32UARTInt, and g_ui32UARTBase and then adjust the UARTStdioConfig function to not reject '3' as an accepted ui32PortNum.

Best Regards,

Ralph Jacobi

+1 Bruce McKenney over 4 years ago

Guru 101485 points

I'm not sure where this is in TivaWare, but the MSP432E examples include a uartstdio.c file. Down around line 130, there's a table

static const uint32_t g_ui32UARTBase[3] =
{
    UART0_BASE, UART1_BASE, UART2_BASE
};

You just need to add UART3 to this table:

static const uint32_t g_ui32UARTBase[4] =
{
    UART0_BASE, UART1_BASE, UART2_BASE, UART3_BASE
};

0 Balaji TS2 over 4 years ago in reply to Ralph Jacobi

Intellectual 280 points

Its working now, thank you for the quick support.

0 Balaji TS2 over 4 years ago in reply to Bruce McKenney

Intellectual 280 points

Its working now, thank you for the quick support.

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TM4C1294NCPDT: Usage of UARTprintf function for UART 3 Port