• AD7887

    Hi,

    I'm using an AD7887 (Vdd +5V) to read a 2 axis accelerometer. I'm following the datasheet, ma I can't read valid data.This is what I'm doing:

    1) CS to low

    2) delay 5us

    3) on first clock cycle I give an HIGH state on DIN pin (DONTC…

  • AD7887

    Hi,

    Can anyone possibly tell me how to check if my AD7887 is working  or not?

  • RE: Interfacing AD7887 with Atmega 32

    As you can see in AD7887_Read16Bits() function comments, the first control byte is the control register of AD7887

    and the second byte is a "don't care" one in order to have 2 bytes received, because the number of bytes

    transmitted and…

  • RE: add sysfs trigger

    Now I set all unused pins to "-1".  When kernel start I see this message:

    ...

    setting trigger mode 2 for irq 54 failed

    ad7887: probe of spi1.0 failed with error -22

    ...

    To date I see "ad7887" in the"/sys/bus/spi/drivers/", and don't see…

  • AD7887: Overvoltage protection

    Our project uses the AD7887 in a mixed voltage system. During a fault /
    failure it is possible that the component is not supplied with 5V, but that
    one of it's inputs (CS and/or CLK) is set high by a 3.3V component on the
    PCB. I presume…
  • AD7887: Using the interal reference

    I have used AD converter AD7887 in analog acquisition board and I have found
    this problem:
    I have used on-chip reference externaly on board and reference voltage change
    its value when conversions
    are stopped.
    I use AD7887 in mode…
  • RE: AD7887 ADC数据采集

    可以参考一下AD7888的示例代码,AD7888与AD7887结构类似

    www.analog.com/media/cn/example-code/ADC/ExampleCode_ADC_AD7888.zip

  • What are the maximum rise and fall times for SPI signals to the AD7887

    I am using the AD7887 in an electrically noisy environment. I want to filter the chip select and clock signals. What range of rise and fall times can these inputs tolerate? Also, is there any hysteresis on these inputs. The timing specifications table…

  • RE: Linux driver for ad7888

    Hi,

    I created a driver for the ad7888 a while ago, unfortunately never had the chance to properly test it, but I think it should work. I've pushed the driver to the iio-ad7888 branch on the ADI linux repository. You can find the patch that adds support…

  • RE: IIO framework for AD7321 driver

    Hi,

    We currently do not have a IIO driver for the AD7321. But there is a driver for the AD7887 which has a similar interface, the main difference is the placement of the bits in configuration register. You should be able to adopt it to work with the…