Efm32-chip peripherals-DAC tips

1. DAC conversion trigger conditions.

There are two trigger conditions. One is to write the value you want to convert to the dacn_chxdata register, provided that you need to enable the DAC first. Or write the value you want to convert to the corresponding part of the dacn_combdata register. The dacn_combdata register maps the values of dacn_ch0data and dacn_ch1data to help you trigger the output of both channels at the same time.

Another trigger condition is to use the PRS signal. When prsen of dacn_chxctrl is set to 1, the trigger condition of each DAC conversion is not to write a value to the data register, but to receive a rising edge pulse signal from the PRS channel.

 

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