SPRUJE5A June 2025 – August 2025
In addition to the buffered DAC outputs available on BP pin 30 and BP pin 70, the F29H85x LaunchPad provides up to four PWM DAC signals at the BoosterPack headers using GPIO8 (BP pin 40) and GPIO9 (BP pin 39) on site 1 and GPIO2 (BP pin 80) and GPIO3 (BP pin 79) on site 2. The intended purpose of the PWM DAC signals are to utilize PWMs of the F29H85x device as digital-to-analog converters (DAC). This method involves low-pass filtering the PWM signal to remove its high-frequency components and ideally leave only the DC component.
By default the RC filter is not populated. Instead a 0 ohm resistor is populated and the capacitor is left unpopulated.