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RTOS/Msp432p401r: UART call back triggering time

Part Number: Msp432p401r


Tool/software: TI-RTOS

Hello,

Iam using MSP432P401R launchpad with TI RTOS

I have configured UART as follows

UART_Params_init(&uartParams);

uartParams.writeDataMode  =UART_DATA_BINARY;

uartParams.readDataMode   = UART_DATA_TEXT;        uartParams.readReturnMode=UART_RETURN_NEWLINE;

uartParams.readEcho       = UART_ECHO_OFF;

uartParams.baudRate = 115200;

uartParams.readMode=UART_MODE_CALLBACK;

uartParams.readCallback=&UART1_readCallBack;

  uartDaughterPort1 = UART_open(Board_UART1, &uartParams);

I am sending UART data as 01 01 02 0A    (0A being newline character in hex).

Iam sending this frame periodically with period 0.5seconds.

But Isr will be triggered once in 1 second.

If I send the above data 10 times with 0.5 second gap. ISR will be triggered only 5 times ie 5 frames are lost.