Hello Expert,
Could you please give us schematic or application note for SPI interface?
Also, we need ref. schematic.
If no, do we have to reference ADS8588SEVM user's guide?
Best Regards,
Michael
Hello Michael,
Could you please give us schematic or application note for SPI interface?
In what mode? There is parallel, parallel byte, and serial interface.
Serial interface is the one that functions like a more traditional SPI interface. CS, SCLK and DOUT (or SOMI POCI) and there's isn't a traditional DIN (or SIMO PICO) as you can only request the conversion result.
Each mode has a description for each pin. For example, I would look into CS, PAR/SER/BYTE SEL, RD/SCLK, and DB7/DOUTA or DB8/DOUTB (maybe FRSTDATA as well). Then all of the DBx/x pins are used for the parallel modes. You'll have to read the datasheet for more info.
Also, we need ref. schematic.
If no, do we have to reference ADS8588SEVM user's guide?
I would definitely use the users guide as a reference: https://www.ti.com/lit/pdf/sbau278
Acknowledge the passive pull up or pull down on the PAR/SER/BYTE SEL pin.
You'll notice there's not much on these pins besides a ~50ohm resistor in series to smooth out fast clock edges. Nothing is open drain so no pull ups required. Up to you if you have multiple devices and you feel you'd like a pull up on CS to be safe or just rely on setting the GPIO settings on your MCU correctly.
Best,
-Cole
