cadc_sequential_conversion#
Overview#
The cadc_sequential_conversion example shows how to use a long conversion sequence (can include as many as all the 16 sample slots) with CADC driver.
In this example, the CADC is configured as “kCADC_ScanModeTriggeredSequential” work mode. User should indicate 4 channel pairs to provide the differential voltage signal (can be controlled by user) as the inputs for CADC sample slots. These sample slots would be assembled into a long conversion sequence.
In “kCADC_ScanModeTriggeredSequential” mode, all the sample slots are organized as a long conversion sequence. The converter A’s control logic would be used to operate this long conversion sequence. It can start and stop the sequence.
When running the project, typing any key into debug console would trigger the conversion. And then, the conversion result data of the four sample slots (Sample 0, 1, 2, 3) would be displayed in the terminal.
Supported Boards#
MC56F80000-EVK
Hardware requirements
Micro USB cable
MC56F80000-EVK board
Personal Computer
Board hardware common setting
Power setting:
Connect J8 pin2 and pin3 Connect J6 pin1 and pin2 Connect J5 pin1 and pin2
Reset pin setting:
Connect J11 pin2 and pin3
Debugger setting:
Connect J13 pin 1-2, 3-4, 5-6, 7-8
Board settings
Supply external voltage(0~3.3V) to ANA4(J4-4) and ANA5(J4-6).
Supply external voltage(0~3.3V) to ANB4(J4-10) and ANB5(J4-12).
Supply external voltage(0~3.3V) to ANB2(J2-9) and ANB3(J2-5).
Note: The sample0 works in fully differential mode and the differential pair is selected as ANA4 and ANA5. The sample1 works in fully differential mode and the differential pair is selected as ANA6 and ANA7. And the thermistor in MC56F80000-EVK board is connected to ANA6 and ANA7. The sample8 works in fully differential mode and the differential pair is selected as ANB4 and ANB5. The sample9 works in fully differential mode and the differential pair is selected as ANB2 and ANB3.
Prepare the Demo
Connect USB cable between the host PC and the J12 USB port on the target board. It setups Multilink and COM port in PC device manager.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board with Multilink debug configuration.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, the following message is displayed in the terminal:
CADC sequential conversion example.
Press any key to trigger the conversion ...
Sample 0 Sample 1 Sample 2 Sample 3
16360 23848 28720 28304
16352 23848 28720 28304
16360 23856 28720 28304
16360 23912 28720 28304
............
............
~~~~~~~~~~~~~~~~~~~~~
User can press any key to continue the converter and get more converter data. Touching thermistor
on board then the output values of sample will be updated.
MC56F81000-EVK
Hardware requirements
2 x Micro USB cable
MC56F81000-EVK board
Personal Computer
Board hardware common setting
Power setting:
Connect J8 pin2 and pin3 Connect J5 pin1 and pin2 Connect J6 pin1 and pin2
Onboard PnE U-MultiLink debugger setting:
Connet J11 pin2 and pin3 Connect J13 pin 1-2, 3-4, 5-6, 7-8, to setup onboard debugger PnE U-MultiLink. Note: when use external debugger(connected to J10), leave all J13 pins open.
Board settings
Supply external voltage(0~3.3V) to ANA4(J4-4) and ANA5(J4-6).
Supply external voltage(0~3.3V) to ANB4(J4-10) and ANB5(J4-12).
Supply external voltage(0~3.3V) to ANB2(J2-9) and ANB3(J2-5).
Note: The sample0 works in fully differential mode and the differential pair is selected as ANA4 and ANA5. The sample1 works in fully differential mode and the differential pair is selected as ANA6 and ANA7. And the thermistor in MC56F81000-EVK board is connected to ANA6 and ANA7. The sample2 works in fully differential mode and the differential pair is selected as ANB4 and ANB5. The sample3 works in fully differential mode and the differential pair is selected as ANB2 and ANB3.
Prepare the Demo
Connect USB cable between the host PC and the USB(J26) port on the target board to setup USB to UART bridge.
Connect USB cable between the host PC and the USB(J12) port on the target baord to setup mulitlink debugger.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board with PnE U-MultiLink debug configuration.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo. Please be noted default FCF(flash configuration field) makes the MCU boot from flash.
Running the demo
When the example runs successfully, the following message is displayed in the terminal:
CADC sequential conversion example.
Press any key to trigger the conversion ...
Sample 0 Sample 1 Sample 2 Sample 3
16360 23848 28720 28304
16352 23848 28720 28304
16360 23856 28720 28304
16360 23912 28720 28304
............
............
~~~~~~~~~~~~~~~~~~~~~
User can press any key to continue the converter and get more converter data. Touching thermistor
on board then the output values of sample will be updated.
MC56F83000-EVK
Hardware requirements
Micro USB cable
MC56F83000-EVK board
Personal Computer
Board hardware common setting
Power setting:
Connect J19 pin2 and pin3 Connect J12 pin1 and pin2 Connect J13 pin1 and pin2 Connect J15 pin1 and pin2 Connect J16 pin2 and pin3 Connect J17 pin1 and pin2
Onboard OSJTAG debugger setting:
Leave J5 open Leave J6 open Note: J6 is only used(connected) when firmware update for onboard debugger OSJTAG. Connect J11 pin 1-2, 3-4, 5-6, 7-8, to setup onboard debugger OSJTAG. Note: when use external debugger(connected to J10), leave all J11 pins open.
Board settings
Supply external voltage(0~3.3V) to ANA4(J4-4) and ANA5(J4-6).
Supply external voltage(0~3.3V) to ANB0(J2-3) and ANB1(J4-8).
Supply external voltage(0~3.3V) to ANB2(J2-9) and ANB3(J2-5).
Note: The sample0 works in fully differential mode and the differential pair is selected as ANA4 and ANA5. The sample1 works in fully differential mode and the differential pair is selected as ANA6 and ANA7. And the thermistor in MC56F83000-EVK board is connected to ANA6 and ANA7. The sample2 works in fully differential mode and the differential pair is selected as ANB0 and ANB1. The sample3 works in fully differential mode and the differential pair is selected as ANB2 and ANB3.
Prepare the Demo
Connect USB cable between the host PC and the JM60 USB(J8) port on the target board. It setups OSJTAG and COM port in PC device manager.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board with OSJTAG debug configuration.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo. Please be noted that default FCF(flash configuration field) setting makes MCU boot from bootloader. So after reset button press, it will wait 5s(wait in bootloader) to run the application code.
Running the demo
When the example runs successfully, the following message is displayed in the terminal:
CADC sequential conversion example.
Press any key to trigger the conversion ...
Sample 0 Sample 1 Sample 2 Sample 3
16360 23848 28720 28304
16352 23848 28720 28304
16360 23856 28720 28304
16360 23912 28720 28304
............
............
~~~~~~~~~~~~~~~~~~~~~
User can press any key to continue the converter and get more converter data. Touching thermistor
on board then the output values of sample will be updated.
TWR-MC56F8200
Hardware requirements
Mini USB cable
TWR-MC56F8200 board
Personal Computer
Board hardware common setting
HW reworkd(workaround):
Connect J18(the mini USB port) pin4 and pin5. Note: This is due to HW design error, correct setting should be: J18 pin4 left empty and pin5 connected GND.
Power setting:
Connect J11 pin1 and pin2 Connect J6 pin1 and J7 pin2
UART setting:
Connect J8 pin3 and pin4 Connect J9 pin3 and pin4
Onboard OSJTAG debugger setting:
Connect J20 pin1 and pin2. Leave J17 open. Note: J17 is only used(connected) when firmware update for onboard debugger OSJTAG. Connect J21 pin 1-2, 3-4, 5-6, 7-8, to setup onboard debugger OSJTAG. Note: when use external debugger(connected to J14), leave all J21 pins open
Board settings
Connect J23 with jumper, 1-2, 3-4. Connect J19 with jumper, 1-2, 3-4. Connect J1 with jumper, 1-2, 3-4. Connect J2 with jumper, 1-2, 3-4.
Note: The sample0(thermistor 4) works in fully differential mode and the differential pair is selected as ANA4 and ANA5. The sample1(thermistor 3) works in fully differential mode and the differential pair is selected as ANA6 and ANA7. The sample2(thermistor 1) works in fully differential mode and the differential pair is selected as ANB4 and ANB5. The sample3(thermistor 2) works in fully differential mode and the differential pair is selected as ANB6 and ANB7.
Prepare the Demo
Connect USB cable between the host PC and the JM60 USB(J18) port on the target board. It setups OSJTAG and COM port in PC device manager.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board with OSJTAG debug configuration.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, the following message is displayed in the terminal:
CADC sequential conversion example.
Press any key to trigger the conversion ...
Sample 0 Sample 1 Sample 2 Sample 3
25728 18200 16992 25648
25728 18192 16992 25648
............
............
~~~~~~~~~~~~~~~~~~~~~
User can press any key to continue the converter and get more converter data. Touching thermistor
on board then the output values of sample will be updated.
TWR-MC56F8400
Hardware requirements
Mini USB cable
TWR-MC56F8400 board
Personal Computer
Board hardware common setting
Power setting:
Connect J11 pin1 and pin2 Connect J6 pin1 and J7 pin2
UART setting:
Connect J8 pin3 and pin4 Connect J9 pin3 and pin4
Onboard OSJTAG debugger setting:
Connect J20 pin1 and pin2. Leave J17 open. Note: J17 is only used(connected) when firmware update for onboard debugger OSJTAG. Connect J21 pin 1-2, 3-4, 5-6, 7-8, to setup onboard debugger OSJTAG. Note: when use external debugger(connected to J14), leave all J21 pins open
Board settings
Connect J23 with jumper, 1-2, 3-4. Connect J19 with jumper, 1-2, 3-4. Connect J1 with jumper, 1-2, 3-4. Connect J2 with jumper, 1-2, 3-4.
Note: The sample0(thermistor 4) works in fully differential mode and the differential pair is selected as ANA4 and ANA5. The sample1(thermistor 3) works in fully differential mode and the differential pair is selected as ANA6 and ANA7. The sample2(thermistor 1) works in fully differential mode and the differential pair is selected as ANB4 and ANB5. The sample3(thermistor 2) works in fully differential mode and the differential pair is selected as ANB6 and ANB7.
Prepare the Demo
Connect USB cable between the host PC and the JM60 USB(J18) port on the target board. It setups OSJTAG and COM port in PC device manager.
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board with OSJTAG debug configuration.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the example runs successfully, the following message is displayed in the terminal:
CADC sequential conversion example.
Press any key to trigger the conversion ...
Sample 0 Sample 1 Sample 2 Sample 3
25728 18200 16992 25648
25728 18192 16992 25648
............
............
~~~~~~~~~~~~~~~~~~~~~
User can press any key to continue the converter and get more converter data. Touching thermistor
on board then the output values of sample will be updated.