LPC845 DAC1 Configuration

[kk7xo]

I am using the LPCXpresso845-MAX board and wish to use DAC1 which is connected to the speaker.  In the schematic for the board it shows that the speaker is connected to DAC1 via pin PIO0_29. 

Referring to the LPC845 user manual UM11029 rev 1.7 of April 2021 I see that in the IOCON register for DAC0, PIO0_17, there is a DACMODE bit (number 16) that must be set to use DAC0, but in IOCON register for PIO0_29 there is no corresponding bit for DAC1. 

How do I set DACMODE for DAC1 in PIO0_29?

[Alice_Yang · Accepted solution]

Hello @kk7xo 

There isn't this bit, no need config DACMODE bit.

BR

Alice

[kk7xo]

Thank you!