RoboWanabe
Member
HI
Ive searched the forum and cant find anyone who has had a similar problem so going to throw this out there.
Ive been given a task to implement this circuit:
the main problems are:
1) Im using a pic18f45k20 which dosent have a 5v output and i belive im going to have an issue with interfacing the two devices i.e. digital interfacing with two diffrent voltage levels?
2) i have two pins SDI and SDO and in the circuit they are combined into one. Am i right in thinking that i need to create the mosfet circuit on MCU side my self? also if i send data isnt MISO going to recive at the same time? do i release or ignoe the PIN when transmutting.
3) what do i need to find out about each device to interconnect them i.e input thresholds etc
Thanks guys.
Ive searched the forum and cant find anyone who has had a similar problem so going to throw this out there.
Ive been given a task to implement this circuit:
the main problems are:
1) Im using a pic18f45k20 which dosent have a 5v output and i belive im going to have an issue with interfacing the two devices i.e. digital interfacing with two diffrent voltage levels?
2) i have two pins SDI and SDO and in the circuit they are combined into one. Am i right in thinking that i need to create the mosfet circuit on MCU side my self? also if i send data isnt MISO going to recive at the same time? do i release or ignoe the PIN when transmutting.
3) what do i need to find out about each device to interconnect them i.e input thresholds etc
Thanks guys.