Page 2 of 2
Re: MCP320x 16-bit to Nano
Posted: Wed Apr 08, 2026 12:49 am
by viktor_aust
Hi Martin
You did not use the SPI Master component.
Is the next step?
Re: MCP320x 16-bit to Nano
Posted: Wed Apr 08, 2026 6:33 am
by mnfisher
No I didn't use SPI here...
Just bit-bang the pins....
Martin
Re: MCP320x 16-bit to Nano
Posted: Wed Apr 08, 2026 7:32 am
by viktor_aust
understood
Re: MCP320x 16-bit to Nano
Posted: Tue Apr 14, 2026 9:54 pm
by mnfisher
Just tested the above bit-bang code with an Arduino (Uno) - and seems to work okay.
With a VRef (and VDD) set at 5V and IN+ and IN- connected to a PSU (I also tried connecting IN- to GND) - I got reasonable results. For example - with the PSU set to 3V - 2.987V was output to UART.
I connected the pins to the logic analyser - and again the output seems reasonable.
0 - is CLK, 1 is Data and 2 is CS. The MCP3201 seems to take a moment to shutdown after CS returns high...
- LabNation_Screenshot50.png (161.24 KiB) Viewed 56 times
Martin