Can anyone explain me how to wire the digipots on J19 (core32stm)?
Regards… :sorcerer:
Hi.
Hopefully Jonathan Farmer who did all of the work on the Digipot interface will respond but I would guess that something like this should work:
You will need to “#define DPOT_SPI 2” to use J19
SO of J19 connects to SI of the first MCP42XXX
SI of J19 connects to SO of the second MCP42XXX
SC of J19 connects to SCK of both MCP42XXX
RC1 or RC2 of J19 connects to CS of both MCP42XXX (#define DPOT_SPI_RC_PIN 0 or 1 )
You may find more information about this by reading the source code in %MIOS32_PATH%/trunk/modules/dpot and %MIOS32_PATH%/trunk/apps/tutorials/026_dpot directories.
Cheers
Phil
