SAMD as Generator & FPGA as receiver

Official Hardware MKR Family MKR Vidor 4000
1

Hi Vidor fans

with this beautiful tuto
https://systemes-embarques.fr/wp/archives/mkr-vidor-4000-programmation-du-fpga-partie-1/

I want to generate simple flow on A0 with SAMD like

pinMode(A0,OUTPUT);
loop {
  digitalWrite(A0,1); delayMicroseconds(100);
  digitalWrite(A0,0); delayMicroseconds(50); 
}

BUT NO signal on pin A0

Thanks for your help
https://gelit.ch

2

no setup() ?

3

setup from https://systemes-embarques.fr/wp/archives/mkr-vidor-4000-programmation-du-fpga-partie-1/

pinMode(A0, OUTPUT); in last line from setup

4

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