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ADS1120: ADS1120 电源上电300ms后才进行寄存器配置,请问一下复位命令0X06还是否必须要下发?

Part Number:ADS1120

ADS1120 电源上电300ms后才进行寄存器配置,请问一下复位命令0X06还是否必须要下发?

Alice:

您好,

      ADS1120上电复位“8.4.1 Power-Up and Reset”,无需额外RESET命令,建议监测DRDY状态改变后(from high to low),再进行芯片配置。

     ADS1120 4-Channel, 2-kSPS, Low-Power, 16-Bit ADC with Integrated PGA and Reference datasheet (Rev. C) (ti.com)

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li chunfeng:

就是说规格书里面推荐的配置流程中,复位命令环节是非必要的?

Set CS to the device low;Delay for a minimum of td(CSSC);

Send the RESET command (06h) to make sure the device is properly reset after power-up;Delay for a minimum of 50 µs + 32 · t(CLK);

Write the respective register configuration with the WREG command (43h, 08h, 04h, 10h, and 00h);

As an optional sanity check, read back all configuration registers with the RREG command (23h);

Send the START/SYNC command (08h) to start converting in continuous conversion mode;

Delay for a minimum of td(SCCS);Clear CS to high (resets the serial interface);

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Alice:

您好,

    “ Send the RESET command (06h) to make sure the device is properly reset after power-up;”

     是的,  如果担心芯片没有正常复位,可增加复位命令。 

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li chunfeng:

您好,那请问一下这个芯片存在芯片没有正常复位的可能吗?上电时序正确和没有EMI等干扰的情况下

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