Pseudo Code Example

The following shows a pseudo code sequence to program the initial register values to the NVM of the DAC53204. The values given here are for the design choices made in the Design Notes.

Pseudo Code Example for Voltage Output Configuration

1:  //SYNTAX: WRITE <REGISTER NAME (Hex code)>, <MSB DATA>, <LSB DATA>  
2:  //Configure GPI for margin high/low trigger
3:  WRITE GPIO-CONFIG(0x24), 0x00, 0x35 
4:  //With 16-bit left alignment 0x3FF becomes 0xFFC0
5:  WRITE DAC-0-MARGIN-HIGH(0x01), 0xFF, 0xC0
6:  //With 16-bit left alignment 0x333 becomes 0xCCC0
7:  WRITE DAC-0-MARGIN-LOW(0x02), 0xCC, 0xC0
8:  //Set the CODE-SETP to 1 LSB and SLEW-RATE to 4 µs/step
9:  WRITE DAC-0-FUNC-CONFIG(0x06), 0x00, 0x01
10: //Power-up voltage output on channel 0, internal reference disabled
11: WRITE GENERAL_CONFIG(0x1F), 0x0F, 0xF9 
12: //Save settings to NVM
13: WRITE COMMON-TRIGGER(0x20), 0x00, 0x02

Pseudo Code Example for Current Output Configuration

1:  //SYNTAX: WRITE <REGISTER NAME (Hex code)>, <MSB DATA>, <LSB DATA>  
2:  //Configure GPI for deep-sleep trigger and enable deep-sleep function
3:  WRITE GPIO-CONFIG(0x24), 0x00, 0x35 
4:  //With 16-bit left alignment 0x80 becomes 0x8000
5:  WRITE DAC-0-MARGIN-HIGH(0x01), 0x80, 0x00
6:  //Write DAC0 margin low code
7:  WRITE DAC-0-MARGIN-LOW(0x02), 0x00, 0x00
8:  //Set the CODE-SETP to 1 LSB and SLEW-RATE to 4 µs/step
9:  WRITE DAC-0-FUNC-CONFIG(0x06), 0x00, 0x01
10: //Power-up current output on channel 0, internal reference disabled
11: WRITE GENERAL_CONFIG(0x1F), 0x0F, 0xFE 
12: //Save settings to NVM
13: WRITE COMMON-TRIGGER(0x20), 0x00, 0x02