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I2C communication for ADS1282

Mussab Zubair
Prodigy 90 points

Other Parts Discussed in Thread: ADS1282

Hi,

I want to use ads1282evm with a gumstix overo. On 1282evm, there is also i2c communication available. I want to ask whether i2c is only use to change the register value of ads1282 or we can also get data output through SDA line since in schematic of ads1282, it is shown that the data will be output on DOUT pin with certain SCLK clock behaviour. So i am bit confused that can i use only i2c bus to write and read data or i also need SPI communication to read data?

Best Regards

mussab 

  • 0
    TI__Mastermind 46290 points

    Mussab,

    The I2C interface is only there to control the PCA9535RGE which is used as a GPIO port expander to interface the GPIO controlled features of the ADS1282 and other features of the EVM. M0, M1, MCLK, PWDN, RESET, etc. are controlled by this interface.

    To modify any register or read data from the ADS1282 you must use the SPI interface.