multilink example and uart problems

[Matts]

Hi.

I have interesting UART problem in Ubuntu. The multilink example only outputs one character at time, and line change doesn't change line. However if I flash another image (based on hrt example), the trace outputs correctly.

I've crosschecked the nrf_drv_config.h and it's identical (except that in the working image I've got twi0 enabled). Both use same SDK (11), HW used is same, so is everyting related to UART. Also makefile CFLAGS and ASMFLAGS are identical. Softdevice is same in both images.

I've now went so far, that I've removed everything else but NRF_LOG_INIT macro in initialization and trace output & led togging in main loop. Nothing else is executed (two leds toggle ok periodically), but trace. Still only one character.

In neither case I can see no USB errors in dmesg.

Ideas?

[tesc]

My initial thoughts:

• Are both examples compiled on the Ubuntu system?
• Hardware flow control?
• Have you checked a diff of the Makefiles?

[Matts]

Third time the charm when looking at Makefile. I had app_uart.c instead of app_uart_fifo.c in the makefile. The file list was quite different and I mainly looked at build flags :/.

[tesc]

Great! (=