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nRF52832 Nordic UART code: What defines are needed to build for the UARTE

David Anthony

I am currently using Nordic's UART code and wish to build to use the UARTE rather than the legacy UART. I am currently using the following definitions in nrf_drv_config.h:

#define UART_EASY_DMA_SUPPORT     1
#define UART_LEGACY_SUPPORT       0

#define UART0_CONFIG_USE_EASY_DMA true

However, when I build the code I get the following error

#ifdef NRF52
    m_cb.use_easy_dma = p_config->use_easy_dma;
#endif

struct "<unnamed>" has no field "use_easy_dma"

Obviously use_easy_dma is not defined as a member for my compile time definitions. Any ideas ?

  • 0

    It is actually a bug in the SDK. Use this for now (no easyDMA support):

    #define UART0_CONFIG_USE_EASY_DMA false
#define UART_EASY_DMA_SUPPORT     1
#define UART_LEGACY_SUPPORT       1

    The bug has been reported.

  • 0

    Thanks. The code now builds fine. The issue now is that the printfs that were working with

    define UART_EASY_DMA_SUPPORT 1

    define UART_LEGACY_SUPPORT 1

    define UART0_CONFIG_USE_EASY_DMA false

    now seem to do nothing.

  • 0

    Another error there, app_uart_fifo_init(...) returns error, should have tested before I suggested that. I will check tomorrow if there is anything you can do.

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