I'm facing the following problem
I wanted from my T3.2 to access 3 SPI devices (ADS1282 ADCs), that do not have a ChipSelect (better, I could not find them)
The ADCs are running continuously, so reset/sync/powerdown are not an option.
I need the chip select for selectively writing to / reading from the different devices.
So my thought is to add a 2 to 1 mux onto the clock line (one input connected to SPI clock, other input grounded)
This way; I need only a single mux for each ADC.
My question to experts is:
considering typical Teensy SPI clock speed
- are there better ways for a T3.2?
- I found 74LVC1G3157, which seems to do what I wanted, but is for analogue signals, would that be suited for digital signals? Are there alternatives?
thanks
Walter
I wanted from my T3.2 to access 3 SPI devices (ADS1282 ADCs), that do not have a ChipSelect (better, I could not find them)
The ADCs are running continuously, so reset/sync/powerdown are not an option.
I need the chip select for selectively writing to / reading from the different devices.
So my thought is to add a 2 to 1 mux onto the clock line (one input connected to SPI clock, other input grounded)
This way; I need only a single mux for each ADC.
My question to experts is:
considering typical Teensy SPI clock speed
- are there better ways for a T3.2?
- I found 74LVC1G3157, which seems to do what I wanted, but is for analogue signals, would that be suited for digital signals? Are there alternatives?
thanks
Walter