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ADS1292: ADS1292

Hamid Naseri
Intellectual 610 points
Part Number: ADS1292

Dear All,

I have build  Figure 60 circuit in datasheet and would like to power up the device before staritng communicaiton.  The very first step in the flow chart is to turn on CLKSEL pin. Using Arduino zero I am simply setting this pin up but the pim remains low. I wonder if anybody else had the same problem. I do appreciate your feedback.

Thanks,

Hamid 

  • 0
    TI__Mastermind 47595 points

    Hi Hamid,

    Please start with the BIOFAQ located in my signature. Especially the SPI communication posts. 

  • 0 in reply to Alexander Smith
    Prodigy 90 points

    Thank you Alex for your response. Following Ryan's FAQ and SPI communication links, I set CLKSEL pin = 1 and DVDD = 1.8 v to see if I can read the ID control Register (expecting 0x73 for ADS1292R). The serial clock frequency (tsclk) in my circuit is about  53 ns. I expected a minimum 66.6 ns based on figure 1 in datasheet and your response to [FAQ]what is the min freq. for my sclk?

    It seems my difficulty reading and writing to registers might be to  SPI timing. I would like to set CLK_DIV bit to define fclk, but before being able to do so I need to get SPI working.

    Regards,

    Hamid