ADS7822: SPI interface

Miranda Gu

Part Number: ADS7822

Hi team,

Could you please guide me how to configure ADS7822 SPI interface? Is ADS7822 the master device or slave device? How to connect SCLK/MOSI/MISO/SS wires? Do you have reference code?

over 3 years ago

0 Miranda Gu over 3 years ago

TI__Genius 15417 points

Hi team,

Customer are very urgent for the answer. Please give a reply ASAP, thank you very much.

0 Miranda Gu over 3 years ago

TI__Genius 15417 points

Hi team,

Could you please answer this question?

0 Cynthia over 3 years ago in reply to Miranda Gu

TI__Mastermind 24940 points

Hello Miranda,

There is no sample code for this device. This device is an SPI device with only 3 connections, and behaves as a target device, not a host.

Please refer to the timing diagram below. When CS is brought low, the device's digital bus is enabled. the SCLK controls the rate of communication, each SCLK pulse will output a data out bit, this is where the sample measurement is outputted.

SCLK= DCLOCK

MOSI = this is not used

MISO = Dout

SS = CS

Regards

Cynthia

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ADS7822: SPI interface