Preferably via a resistor eg. 8K2 as used here: https://www.cpmspectrepi.uk/raspberry_p ... alLCD.htmlThe /RESET pin cannot be left floating. From the MCP23S17 datasheet:
reset.JPG
It has a power-on-reset feature though so you can simply connect /RESET to 3.3V.
and for a related device here:
https://www.cpmspectrepi.uk/raspberry_p ... ut2p1.html
https://www.cpmspectrepi.uk/raspberry_p ... blePi.html
Trev.
Statistics: Posted by FTrevorGowen — Thu Mar 28, 2024 9:23 pm