mbed OS serial port hang.

RE: mbed OS serial port hang.

Dimitri — Tue, 30 Aug 2016 09:30:39 GMT

Great! This works now! Thank you Max!

RE: mbed OS serial port hang.

maxv — Tue, 30 Aug 2016 09:07:53 GMT

This has finally been resolved, meaning that mbed OS is actually useful to people using the Nordic serial port w/o hardware flow control.

Issues: github.com/.../25

The short answer: Create an mbed_app.json file in your app folder, and add the following to it:

"NRF51_DK": { "target.uart_hwfc": 0 }

or in your case, probably:

"NRF52_DK": { "target.uart_hwfc": 0 }

RE: mbed OS serial port hang.

maxv — Thu, 25 Aug 2016 14:33:20 GMT

Yeah I had problems with this on an nRF52-DK as well, when using only the pure Nordic nRF5 SDK. I've had some serious upset moments with the serial port over the past 6 months.

RE: mbed OS serial port hang.

Dimitri — Thu, 25 Aug 2016 13:48:31 GMT

Hi Max,

I am also experiencing the same issue with mbed OS on a nRF52-DK V1.1.0. I hope Nordic can quickly fix this as I am aggressively prototyping with the nRF52. It's good to know I'm not the only one experiencing this!

Dimitri

RE: mbed OS serial port hang.

maxv — Tue, 23 Aug 2016 12:39:47 GMT

Actually, I just realized also that this is potentially the reason why creating a Peripheral device and hooking it up to a USB power bank instead of to a PC always caused it hang within a few seconds.