Hello
My application requires measuring 7 RTDs (all of them are 3 wire configuration). They need to interface to the ARM 32F103 microcontroller via SPI.
The problem is I only have 1 SPI port available for communication, and the LMP90100/ ADS1248 have only 4 inputs for 3 wire RTD, so I need to use 2 each.
How can I implement this?