Lost voltage reference configuration bits.

[jlewallen]

I believe there's an issue around how the config member is being handled that causes configuration to be lost when a reading is taken. Specifically the vref configuration bits. Right now, it seems that you can't actually take a reading using the external vref.

For example, at the beginning of ADS1219::readDifferential_0_1() the config member is masked by MUX_MASK, which will zero the vref configuration bits, setting things back to the defaults.

Jacob

[OM222O]

I'm not sure if you're still interested in this but I didn't have access to my github account for a while. Will check and resolve the issue over the weekend.

[OM222O]

Hi Jacob, I can't reproduce your results. ANDing with MUX_MASK 0b00011111 will zero out MUX[2:0] bits but leave the other configuration bits untouched. Then the channel configuration is written to the register using an OR. Can you please share your code/I2C capture showing the behavior you described?

[jlewallen]

Hey there! That's odd.... unfortunately I no longer have access to code that this was related to. Feel free to close this issue :) Thanks for the effort, though!