What's wrong with "SEGGER_RTT_printf" or "__DATE__,__TIME__"

[hengyongchao]

I want printf the date and time when compiling code. But I drag on this error:

SEGGER_RTT_printf("%s %s.\r\n", __DATE__,__TIME__);

compiler says:

It's strange.I use keil MDK-ARM.

[Jørgen Holmefjord]

Hi,

The first argument of SEGGER_RTT_printf() function should be the buffer index:

SEGGER_RTT_printf(unsigned BufferIndex, const char * sFormat, ...)

You can set this to zero:

SEGGER_RTT_printf(0, "%s %s.\r\n", __DATE__,__TIME__);

Best regards,

Jørgen

[hengyongchao]

Thank you,Jorgen. My bad,actually I already use this format to print reset reason.

SEGGER_RTT_printf(0, "RESET_REAS:%2x\r\n",(uint16_t)NRF_POWER->RESETREAS);