ecspi_loopback#
Overview#
The ecspi_loopback demo shows how the ecspi do a loopback transfer internally. The ECSPI connects the transmitter and receiver sections internally, and the data shifted out from the most-significant bit of the shift register is looped back into the least-significant bit of the Shift register. In this way, a self-test of the complete transmit/receive path can be made. The output pins are not affected, and the input pins are ignored.
Supported Boards#
EVK-MIMX8MM
Hardware requirements
Micro USB cable
MCIMX8MM6-EVK board
J-Link Debug Probe
12V power supply
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect 12V power supply and J-Link Debug Probe to the board, switch SW101 to power on the board
Connect a USB cable between the host PC and the J901 USB port on the target board.
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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, the below log will be print in the terminal window:
***ECSPI Loopback Demo***
This demo is a loopback transfer test for ECSPI.
The ECSPI will connect the transmitter and receiver sections internally.
So, there is no need to connect the MOSI and MISO pins.
ECSPI loopback test pass!
EVK-MIMX8MN
Hardware requirements
Micro USB cable
MCIMX8MN6-EVK board
J-Link Debug Probe
12V power supply
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect 12V power supply and J-Link Debug Probe to the board, switch SW101 to power on the board
Connect a USB cable between the host PC and the J901 USB port on the target board.
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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, the below log will be print in the terminal window:
***ECSPI Loopback Demo***
This demo is a loopback transfer test for ECSPI.
The ECSPI will connect the transmitter and receiver sections internally.
So, there is no need to connect the MOSI and MISO pins.
ECSPI loopback test pass!
EVK-MIMX8MNDDR3L
Hardware requirements
Micro USB cable
MCIMX8MN6-EVK board
J-Link Debug Probe
12V power supply
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect 12V power supply and J-Link Debug Probe to the board, switch SW101 to power on the board
Connect a USB cable between the host PC and the J901 USB port on the target board.
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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, the below log will be print in the terminal window:
***ECSPI Loopback Demo***
This demo is a loopback transfer test for ECSPI.
The ECSPI will connect the transmitter and receiver sections internally.
So, there is no need to connect the MOSI and MISO pins.
ECSPI loopback test pass!
EVK-MIMX8MP
Hardware requirements
Micro USB cable
EVK-MIMX8M Plus board
J-Link Debug Probe
12V power supply
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect 12V power supply and J-Link Debug Probe to the board, switch SW3 to power on the board
Connect a USB cable between the host PC and the J23 USB port on the target board.
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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, the below log will be print in the terminal window:
***ECSPI Loopback Demo***
This demo is a loopback transfer test for ECSPI.
The ECSPI will connect the transmitter and receiver sections internally.
So, there is no need to connect the MOSI and MISO pins.
ECSPI loopback test pass!
EVK-MIMX8MQ
Hardware requirements
Micro USB cable
MCIMX8MQ6-EVK board
J-Link Debug Probe
12V power supply
Personal Computer
Board settings
No special settings are required.
Prepare the Demo
Connect 12V power supply and J-Link Debug Probe to the board, switch SW701 to power on the board
Connect a USB cable between the host PC and the J1701 USB port on the target board.
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.
Launch the debugger in your IDE to begin running the demo.
Running the demo
If the demo run successfully, the below log will be print in the terminal window:
***ECSPI Loopback Demo***
This demo is a loopback transfer test for ECSPI.
The ECSPI will connect the transmitter and receiver sections internally.
So, there is no need to connect the MOSI and MISO pins.
ECSPI loopback test pass!