Hello,
after successfully putting one DAC8750 into operation I encountered a problem with the daisy-chain mode.
Our goal is a daisy-chain of 8 DACs.
My routine is following:
- First I send every DAC a reset --> 8x24 bit
- then a NOP
- after that every other register
The Control register is 0x100D --> 4-20mA range, Daisy-chain enable, output enable
The sending routine is following:
CLR LOW
Latch Low
Sending the data for one register for every DAC ( 8x 24 bit) //Reset register
Latch high
again
Latch Low
Sending the data for one register for every DAC ( 8x 24 bit)//NOP Register
Latch high
and 6x again
So my DACs won't work but why?
My other routines for one DAC are working and I think my daisy-chain routine matches the datasheet.