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How to configure alarm spectral bands for adis16228

Question asked by Ironman on Oct 17, 2017
Latest reply on Nov 10, 2017 by NevadaMark

I use the adis16228.

I have two questions.

 

I configure all alarm bands as follows.

 

ALM_PNTR[7:0] = 1   

ALM_F_LOW[7:0] = 5

ALM_F_HIGH[7:0] = 50

ALM_X_MAG1[15:0]=10000

ALM_X_MAG2[15:0]=20000

...

ALM_PNTR[7:0] = 2

ALM_F_LOW[7:0] = 50

ALM_F_HIGH[7:0] = 90

ALM_X_MAG1[15:0]=10000

ALM_X_MAG2[15:0]=20000

...

...

ALM_PNTR[7:0] = 6  

ALM_F_LOW[7:0] = 220

ALM_F_HIGH[7:0] = 254

ALM_X_MAG1[15:0]=10000

ALM_X_MAG2[15:0]=20000

 

However, the alarm only operates the last one.( 6th alarm band)

Why would it work?

 

 

 

I read setting of alarm bands.

I wrote register ALM_PNTR[7:0] = 1

and read ALM_F_LOW, ALM_F_HIGH.

the reading is value of band 6. ( 220, 254 ), I expect value, 5 and 50.

when ALM_PNTR = 2, 3, 4, 5, the result is the same.

 

 

First,

To operate correctly, how do I set up?

Second,

How to read the setting of all alarm bands ?

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