SLAU912A January 2024 – October 2024 DAC61402 , DAC61404 , DAC81402 , DAC81404
After the power and jumper configurations are set up per Figure 3-1 or Figure 3-2, and the DAC814xxEVM GUI is fully installed, connect the USB cable from the DAC81404EVM USB port to the local machine.
Once all the connection is done, power up the DAC81404EVM hardware as described in Section 2.1.
For basic DAC81404 device check, use one of the following sequences in the DAC814xxEVM GUI:
From DAC81404 Register page
Write 0x0A04 to the SPI_CONFIG (0x03) register to power up the device
Write 0x0000 to the GEN_CONFIG (0x04) register to power up the internal reference
Write 0x0000 to the DAC_PWDWN (0x09) register to power up the DAC outputs
Write 0x7FFF to the DACA (0x10) register to configure the DAC_OUT to 2.5V on DAC_OUTA (TP5)
From DAC81404 High Level page
Device Power Down: select Active mode to power up the device
Reference Power-Down: select Activate internal ref to power up the internal reference
DACA Channel Power-Down: select Activate channel to power up the DAC output
DACA_DATA: write 0x7FFF to get 2.5V on DAC_OUT (TP5)
The default voltage range for the DAC81404 is 0V to 5V. Configure the voltage range by modifying the DACx Voltage Range control on DAC814xxEVM GUI High Level page, or by writing to the "DACx_RANGE" register in the Low Level page as shown in Section 3.2.