Symbol UARTE0_UART0_IRQHandler multiply defined (by nrfx_uarte.o and nrfx_uart.o).

[Thomas]

I am unable to figure out what causes the problem that IRQ handler is defined both in nrfx_uart and nrfx_uarte modules.

After investigating in a test project I have found that it seems to be best to include all uart modules. nrf_drvuart.c, nrfx_uart.c, nrfx_uarte.c and nrf_serial.c in the project. For sdk_config it seems to be best to enable nrf_drv_uart, nrfx_uarte and nrf_serial. In test project I can skip enabling nrfx_uart and is able to link.

I am trying to use nrf_serial.

But in my real project the best combination of sdk_config still causes problem with:

Symbol UARTE0_UART0_IRQHandler multiply defined (by nrfx_uarte.o and nrfx_uart.o).

I cannot determine why.

Anyone got a clue?

[Thomas]

The multible defined IRQ handler can be fixed by setting UART_LEGACY_SUPPORT to 0.

But that just causes another problem with nrf_serial.c line 208

drv_config.use_easy_dma = (p_config->mode == NRF_SERIAL_MODE_DMA);

there is no field "use_easy_dma....."

[Simonr]

Hi Thomas

What SDK version are you using? If you're using BLE in your real project, I suggest taking a look at the ble_app_uart example. The use_easy_dma define can be found in the sdk_config.h file as UART0_CONFIG_USE_EASY_DMA. Please make sure this is in your config file and set to 1 as well.

Best regards,

Simon

[Thomas]

I'm using 15.3

And UART0_CONFIG_USE_EASY_DMA is set to 1

I gave up on using nrf_serial.c