Unable to debug, unable to printf to see errcode

RE: Unable to debug, unable to printf to see errcode

Ole Bauck — Mon, 25 Jan 2016 09:29:20 GMT

Try using app_uart_fifo.c instead of app_uart.c. This problem often arise because of that.

RE: Unable to debug, unable to printf to see errcode

Erik — Sun, 24 Jan 2016 04:23:21 GMT

Hello, I'm not sure what compiler it is since the computer I worked on is at work. But it's a keil uv4, I forgot about the details.

what do you mean Nordic project examples? There wasn't any debug-specific project examples?

Erik

RE: Unable to debug, unable to printf to see errcode

Erik — Sat, 23 Jan 2016 01:10:21 GMT

I understand your point, but the thing is, it will probably just print out the hexadecimal ascii code of the letter "E", yea, it outputs only one character, no more, no less.

For example, if you use "printf("lovely day!") in the specific place I mentioned in my post, not anywhere else, an character "l" will only be shown or its hexadecimal ascii code if I choose to show only hexadecimal data in my sniffer app.

RE: Unable to debug, unable to printf to see errcode

Alex — Fri, 22 Jan 2016 15:47:38 GMT

What compiler do you use? You probably don't have correct settings in IDE for debugging. Have a look at Nordic project examples

RE: Unable to debug, unable to printf to see errcode

Ole Bauck — Fri, 22 Jan 2016 14:47:54 GMT

You have to format what is sent with printf. Something like this:

printf("Error code: %d\n", err_code);

%d means that the variable will be printed out as decimal, you can use %x if you want it to be printed out as hexadecimal. \n is newline.