2 years, 3 months ago.

NUCLEO-L476RG not working

Simple hello world program works on NUCLEO-F411RE but not on NUCLEO-L476RG.

DigitalOut blink(PC_3); int main() { bool toggle=false; while(1) { if (toggle) blink.write(1); else blink.write(0); wait(0.2); toggle = !toggle; } }

LED blinks with F411RE board but remains off with L476RG board.

No success even after following instructions to upgrade firmware mentioned here:

I also don't get any result even when trying to use other port pins.

Please help, I have bought 4 of these (L476RG) development boards thinking that they should work just the same as my previous F411-RE boards have worked...

Darmesh Nana

Further information. Flash drive on L476RG contains details text file with the following content "Version: 0221 Build: Nov 17 2016 13:37:06"

posted by Darmesh Nana 08 Feb 2017

Hi Darmesh,

I don't think "PC_3" should be used as DigitalOut from the PinMaps. You could check the PinMaps from here and select correct one:

BR, Fred.

posted by Fred Li 09 Feb 2017

I have found that on L476RG it also relates to serial port that I have defined. With definition Serial lcd4D(PC_1, PC_0) the blinking pin does not work. With definition Serial lcd4D(PA_2, PA_3) the blinking pin works.

So my conclusion is that use of Serial Port on pins PC_1 & PC_0 is incorrect or not supported (Serial1)

posted by Darmesh Nana 10 Feb 2017
Comment on this question
Be the first to answer this question.

To post an answer, please log in.