David Sidrane 73bb18a053 px4_fmu-v6x: Limit Slew rate So IMU works with DMA
The defualt in NuttX is OSPEED of 50Mhz. This is realy a slew
   rate control. At the default high slew rate the overshoot was
   .7 Volts. On a ICM20649 this was causing the device to output
   garbage. All 0s

   N.B. A passive scope or Logic analyser's probes load will mask
   the failure. Useed a FET probe to verify the issue.
2020-06-02 13:02:51 -04:00
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