STM32CubeMX/STM32L0 UART Transmit unknown symbols

Question

I am trying to connect UART communication with STM32L053C8-Discovery. But the problem is on terminal I get unknown symbols.

My Setup on CubeMX

/* USER CODE BEGIN Includes */
uint8_t tx_buff[]={1};
uint8_t rx_buff[10];

  while (1)
  {
    HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5);
    HAL_UART_Transmit_DMA(&huart1,tx_buff,sizeof(tx_buff));// Sending in DMA mode
    HAL_Delay(1000);
}

To RX,TX pins I connected FT232RL FTDI module.

With Arduino it works but with STM32 in terminal I get only symbols. Maybe someone could explain me how to correctly set the format?

Also there is a full code of main.c: https://pastebin.com/kST92XWZ

Answer 1

Baud rate mismatch.

Baud rate is set to 9600 baud on the screenshots, but it's 9800 in the linked code.

huart1.Init.BaudRate = 9800;