lpspi_loopback#
Overview#
The lpspi_loopback demo shows how the lpspi do a loopback transfer, LPSPI master will transmit data to itself, so please connect the SOUT pin to SIN pin directly.
Supported Boards#
EVKB-IMXRT1050
Hardware requirements
Mini/micro USB cable
EVKB-MIMXRT1050 board
Personal Computer
Board settings
Remove the resistor R334 and weld 0Ω resistor to R278,R280.
LPSPI:
MASTER connect to MASTER
Pin Name Board Location Pin Name Board Location
SOUT J24-4 SIN J24-5
Prepare the Demo
Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device 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 demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
***LPSPI Loopback Demo***
LPSPI loopback test pass!!!
MIMXRT1060-EVKB
Hardware requirements
Mini/micro USB cable
MIMXRT1060-EVKB board
Personal Computer
Board settings
Remove the resistor R305 and weld 0Ω resistor to R346,R362.
LPSPI:
MASTER connect to MASTER
Pin Name Board Location Pin Name Board Location
SOUT J17-4 SIN J17-5
Prepare the Demo
Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device 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 demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
***LPSPI Loopback Demo***
LPSPI loopback test pass!!!
MIMXRT1060-EVKC
Hardware requirements
Mini/micro USB cable
MIMXRT1060-EVKC board
Personal Computer
Board settings
Weld 0Ω resistor to R346,R350.
LPSPI:
MASTER connect to MASTER
Pin Name Board Location Pin Name Board Location
SOUT J17-4 SIN J17-5
Prepare the Demo
Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device 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 demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
***LPSPI Loopback Demo***
LPSPI loopback test pass!!!
EVK-MIMXRT1015
Hardware requirements
Mini/micro USB cable
EVK-MIMXRT1015 board
Personal Computer
Board settings
The lpspi_loopback demo shows how the lpspi do a loopback transfer, LPSPImaster will transmit data to itself, so please connect the SOUT pin to SIN pin directly.
To make the example work, connections needed to be as follows:
Pin Name Board Location Pin Name Board Location
SOUT J19-4 connect to SIN J19-5
Prepare the Demo
Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device with these settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Reset the SoC and run the project.
Running the demo
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
***LPSPI Loopback Demo***
LPSPI loopback test pass!!!
Note: To debug in qspiflash, following steps are needed:
Select the flash target and compile.
Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
Start debugging in IDE.
Keil: Click “Download (F8)” to program the image to qspiflash first then clicking “Start/Stop Debug Session (Ctrl+F5)” to start debugging.
EVK-MIMXRT1020
Hardware requirements
Mini/micro USB cable
EVK-MIMXRT1020 board
Personal Computer
Board settings
The lpspi_loopback demo shows how the lpspi do a loopback transfer, LPSPImaster will transmit data to itself, so please connect the SOUT pin to SIN pin directly.
To make the example work, connections needed to be as follows:
Pin Name Board Location Pin Name Board Location
SOUT J19-4 connect to SIN J19-5
Prepare the Demo
Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device with these settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Reset the SoC and run the project.
Running the demo
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
***LPSPI Loopback Demo***
LPSPI loopback test pass!!!
Note: To debug in qspiflash, following steps are needed:
Select the flash target and compile.
Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
Start debugging in IDE.
Keil: Click “Download (F8)” to program the image to qspiflash first then clicking “Start/Stop Debug Session (Ctrl+F5)” to start debugging.
MIMXRT1024-EVK
Hardware requirements
Mini/micro USB cable
MIMXRT1024-EVK board
Personal Computer
Board settings
The lpspi_loopback demo shows how the lpspi do a loopback transfer, LPSPImaster will transmit data to itself, so please connect the SOUT pin to SIN pin directly.
To make the example work, connections needed to be as follows:
Pin Name Board Location Pin Name Board Location
SOUT J19-8 connect to SIN J19-10
Prepare the Demo
Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device with these settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Reset the SoC and run the project.
Running the demo
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
***LPSPI Loopback Demo***
LPSPI loopback test pass!!!
Note: To debug in qspiflash, following steps are needed:
Select the flash target and compile.
Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
Start debugging in IDE.
Keil: Click “Download (F8)” to program the image to qspiflash first then clicking “Start/Stop Debug Session (Ctrl+F5)” to start debugging.
MIMXRT1040-EVK
Hardware requirements
Mini/micro USB cable
MIMXRT1040-EVK board
Personal Computer
Board settings
Weld 0Ω resistor to R346,R350,R356,R362.
LPSPI:
MASTER connect to MASTER
Pin Name Board Location Pin Name Board Location
SOUT J17-4 SIN J17-5
Prepare the Demo
Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device 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 demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
***LPSPI Loopback Demo***
LPSPI loopback test pass!!!
EVK-MIMXRT1064
Hardware requirements
Mini/micro USB cable
EVK-MIMXRT1064 board
Personal Computer
Board settings
Remove the resistor R334 and weld 0Ω resistor to R278,R280.
LPSPI:
MASTER connect to MASTER
Pin Name Board Location Pin Name Board Location
SOUT J24-4 SIN J24-5
Prepare the Demo
Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal on PC for OpenSDA serial device 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 demo.
Running the demo
When the example runs successfully, you can see the similar information from the terminal as below.
***LPSPI Loopback Demo***
LPSPI loopback test pass!!!