UART TIME OUT

[PESHWA]

Hello everyone 

I am trying to receive file form UART through Xmodem protocol I am getting file in debug mode but unable to get into run mode it showing  UART Rx busy basically hanging over these function 

while (!(HAL_UART_GetState(&huart4) == HAL_UART_STATE_READY) && wTimeout) {
wTimeout--;
}

if (HAL_UART_GetState(&huart4) == HAL_UART_STATE_READY)
break;
}

Can anyone suggest me for the what's wrong with the code  

[FBL]

Hello @PESHWA 

Could you specify the product being used, please?

[Tesla DeLorean]

The host isn't sending data?

You've got some stuck error status like noise, framing, parity, overrun that you need to clear before reception works?

[Tesla DeLorean]

The timeout also isn't time bound it's iteration bound and this can change depending on execution speed and optimization. You need it to run in consistent time.

[PESHWA]

yes STM32L4 MCU and with help of tera term as serial terminal as any idea why this happening 

NOTE : I am using IAR workbench as IDE 

[PESHWA]

Hi

I am doing in consistent time frame 

/* USER CODE END UART4_Init 1 */
huart4.Instance = UART4;
huart4.Init.BaudRate = 19200;
huart4.Init.WordLength = UART_WORDLENGTH_8B;
huart4.Init.StopBits = UART_STOPBITS_1;
huart4.Init.Parity = UART_PARITY_NONE;
huart4.Init.Mode = UART_MODE_TX_RX;
huart4.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart4.Init.OverSampling = UART_OVERSAMPLING_16;
huart4.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart4.Init.ClockPrescaler = UART_PRESCALER_DIV1;
huart4.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart4) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetTxFifoThreshold(&huart4, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetRxFifoThreshold(&huart4, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_DisableFifoMode(&huart4) != HAL_OK)
{
Error_Handler();
}

here are my uart configuration and Iam using uart interrupt for communicate  

[PESHWA]

HI Host is sending char(C) as per showing on serial terminal