NXP MCUX Analog Comparator (ACMP)
Overview
This sample show how to use the NXP MCUX Analog Comparator (ACMP) driver. The sample supports the TWR-KE18F, MIMXRT1170-EVK/EVKB, FRDM-KE17Z , FRDM-KE17Z512 and MIMXRT1180-EVK.
The input voltage for the negative input of the analog comparator is provided by the ACMP Digital-to-Analog Converter (DAC). The input voltage for the positive input can be adjusted by turning the on-board potentiometer for TWR-KE18F board, for MIMXRT1170-EVK/EVKB the voltage signal is captured on J25-13, the FRDM-KE17Z and FRDM-KE17Z512 boards are captured in J2-3, the MIMXRT1180-EVK board are captured in J45-13, need change the external voltage signal to check the output.
The output value of the analog comparator is reported on the console.
Building and Running
Building and Running for TWR-KE18F
Build the application for the TWR-KE18F board, and adjust the ACMP input voltage by turning the on-board potentiometer.
west build -b twr_ke18f samples/sensor/mcux_acmp
west flash
Building and Running for MIMXRT1170-EVK
Build the application for the MIMXRT1170-EVK board, and adjust the ACMP input voltage by changing the voltage input to J25-13.
west build -b mimxrt1170_evk_cm7 samples/sensor/mcux_acmp
west flash
Building and Running for FRDM-KE17Z
Build the application for the FRDM-KE17Z board, and adjust the ACMP input voltage by changing the voltage input to J2-3.
west build -b frdm_ke17z samples/sensor/mcux_acmp
west flash
Building and Running for FRDM-KE17Z512
Build the application for the FRDM-KE17Z512 board, and adjust the ACMP input voltage by changing the voltage input to J2-3.
west build -b frdm_ke17z512 samples/sensor/mcux_acmp
west flash
Building and Running for MIMXRT1180-EVK
Build the application for the MIMXRT1180-EVK board, and adjust the ACMP input voltage by changing the voltage input to J45-13.
west build -b mimxrt1180_evk/mimxrt1189/cm33 samples/sensor/mcux_acmp
west flash
west build -b mimxrt1180_evk/mimxrt1189/cm7 samples/sensor/mcux_acmp
west flash