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virtual com port using stm32l053r8 cube libaries in keil (via USB to virtual com port)

austin

how to display a string from stm32l053r8 nucleo using cube libraries in keilv5 (via USB to virtual com port)
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code:

if( HAL_ADC_Start(&hadc) != HAL_OK) return 0; if (HAL_ADC_Start_DMA(&hadc, (uint32_t*)ADC1ConvertedValues, 2048) != HAL_OK) // return 0; temp=HAL_ADC_GetValue ( &hadc );

need to display the temp value through usb in virtual com port (teraterm)

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    Configure the USART and pins, PA2 and PA3 on the Nucleo's as I recall. Check the manual for the pins and USART# specific to the L0 part.

    If you want to use printf(), then you'll need to add semi-hosting code to redirect/retarget the STDIO input and output functions to code you provide that talks to the USART.

    if you can use sprintf(), you can create a string, and then add routines to send the string a character at a time out the USART.

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  • 0

    Configure the USART and pins, PA2 and PA3 on the Nucleo's as I recall. Check the manual for the pins and USART# specific to the L0 part.

    If you want to use printf(), then you'll need to add semi-hosting code to redirect/retarget the STDIO input and output functions to code you provide that talks to the USART.

    if you can use sprintf(), you can create a string, and then add routines to send the string a character at a time out the USART.

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