adc12_continuous_edma#
Overview#
The ADC12 continuous EDMA demo application demonstrates the usage of the ADC and EDMA peripheral while in a continuous mode. The ADC12 is first set to continuous mode. In continuous convert configuration, only the initial rising-edge to launch continuous conversions is observed, and until conversion is aborted, the ADC12 continues to do conversions on the same SCn register that initiated the conversion. EDMA request will be asserted during an ADC12 conversion complete event noted when any of the SC1n[COCO] flags is asserted. EDMA will transfer ADC12 results to memory and if users press any key, demo will average ADC12 results stored in memory and print average on the terminal.
Supported Boards#
FRDM-KE15Z
Hardware requirements
Micro USB cable
FRDM-KE15Z board
Personal Computer
Board settings
This example project uses ADC12 instance 0 to sample and convert the voltage signal input from channel 0(PTA0). So the voltage signal input from PTA0 should be changed to observe the dynamical conversion result.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal with these settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the example.
Running the demo
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
ADC12 CONTINUOUS EDMA DEMO ADC calibration is done! ADC Full Range: XXXX Press any key to get user channel’s ADC value … ADC value: 2824 ADC value: 2709 ADC value: 2757 ADC value: 2834 ADC value: 2798 ADC value: 2617 ADC value: 2792
FRDM-KE17Z
Hardware requirements
Micro USB cable
FRDM-KE17Z board
Personal Computer
Board settings
This example project uses ADC12 instance 0 to sample and convert the voltage signal input from channel 0(PTE9). So the voltage signal input from PTE9(J3-3) should be changed to observe the dynamical conversion result.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal with these settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the example.
Running the demo
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
ADC12 CONTINUOUS EDMA DEMO ADC calibration is done! ADC Full Range: XXXX Press any key to get user channel’s ADC value … ADC value: 2824 ADC value: 2709 ADC value: 2757 ADC value: 2834 ADC value: 2798 ADC value: 2617 ADC value: 2792
FRDM-KE17Z512
Hardware requirements
Micro USB cable
FRDM-KE17Z512 board
Personal Computer
Board settings
This example project uses ADC12 instance 0 to sample and convert the voltage signal input from channel 0(PTE9). So the voltage signal input from PTE9(J2-19) should be changed to observe the dynamical conversion result.
Prepare the Demo
Connect a USB cable between the PC host and the MCU-LINK USB port on the board.
Open a serial terminal with these settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the example.
Running the demo
When the demo runs successfully, the log would be seen on the MCU-LINK terminal like:
ADC12 CONTINUOUS EDMA DEMO ADC calibration is done! ADC Full Range: XXXX Press any key to get user channel’s ADC value … ADC value: 2824 ADC value: 2709 ADC value: 2757 ADC value: 2834 ADC value: 2798 ADC value: 2617 ADC value: 2792
FRDM-MCXE247
Hardware requirements
USB-C cable
FRDM-MCXE247 board
Personal Computer
Board settings
This example project uses ADC12 instance 0 to sample and convert the voltage signal input from channel 0 (PTA0). So the voltage signal input on PTA0 (J4-10) should be changed to observe the dynamical conversion result.
Prepare the Demo
Connect a USB cable between the PC host and the MCU-LINK USB port on the board.
Open a serial terminal with these settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the example.
Running the demo
When the demo runs successfully, the log would be seen on the MCU-LINK terminal like:
ADC12 CONTINUOUS EDMA DEMO ADC calibration is done! ADC Full Range: XXXX Press any key to get user channel’s ADC value … ADC value: 2824 ADC value: 2709 ADC value: 2757 ADC value: 2834 ADC value: 2798 ADC value: 2617 ADC value: 2792