I.MXRT1060 debugconsole via USB (NOT OpenSDA)

[patriciocohen]

Hi,

I need to use the debug console through one of the USB ports of the IMXRT1062. 

I have tried evkmimxrt1060_hello_world_virtual_com, but I can't see output in the PC using a terminal program. 

It is important to note though, that the com port is shown correctly in the Windows device manager.

I also tried the example evkmimxrt1060_dev_cdc_vcom_freertos and this works fine. After connecting to the com port via a terminal program in the PC, I received the echo of every char I send to the IMXRT.  However I need to connect the debug console to the virtual serial port, so this is not the functionality I need.

Your help will be greatly appreciated. 

Thank you!

Patricio

[patriciocohen]

Hi @EdwinHz 

As a last resort I tried with the Tera Term terminal you showed in the picture. And guess what? Now it works, but only with Tera Term. Why??

It doesn't work with YAT, Termite, Hercules and several others terminals. Please explain what could be happening, I can't find a reason. 

Thank you.

Patricio

[patriciocohen · Accepted solution]

Hi @EdwinHz 

Patricio here again. The mystery is solved.

Every terminal works once you set DTR (Data terminal Ready). It was driving me crazy, but now everything is clear.

Thanks for your help.

Best regards,

Patricio Cohen

[mjbcswitzerland]

Hi

Try the binary image here: https://www.utasker.com/iMX/RT1060.html#DUAL_USB_CDC_DEV

The description is:
"Complete project reference with dual-USB-CDC device, including boot loader, which can be loaded (copied to its QSPI-Flash) using your favorite loading tool - for example NXP MCUBootUtility.
This application supports a command line interface on the LPUART (connected to the board's VCOM interface) at 115'200 Baud. When the first HSUSB interface is connected to a host it appears as the same command line interface via USB-CDC [if blocked by the LPUART interface command "quit" to free it]. In the USB menu a USB-CDC to LPUART bridge can be commanded using the comand "usb-serial", whereby the LPUART's baud rate follows that set by the terminal emulator on the USB-CDC interface.

The second HSUSB enumerates as a second USB-CDC device and will echo back all received data."

This is the standard uTasker frame work which automatically allows the CLI to be accessed via UART, USB-CDC and Telnet connections (on Ethernet, Wifi or tethered).

In addition to such standard functionality it allows the i.MX RT (including its USBs) to be emulated for optimal development efficiency - see for example https://youtu.be/3irORtbc4e0

Regards

Mark


For our discounted i.MX and Kinetis stock availability see https://www.utasker.com/Shop/semi.html

[EdwinHz]

Hi @patriciocohen,

Are you certain you are following all of the steps shown on the readme.txt file inside of the doc folder of the project? Also, make sure you are reading the correct COM port. For example, here the PC is able to detect both the connection to the debugger (COM16) as well as the connection to the USB serial device (COM42):

But the "hello world" text comes from the USB serial device (COM42) not the J-Link (COM16):

Make sure you are using the USB connection.

BR,
Edwin.

[patriciocohen]

Hi @EdwinHz 

I tried even with my MIMXRT1060-EVK that I have here with no results. Could be a driver problem? The PC I'm using has Windows 10 and the VCOM installed driver is provided by Microsoft. 

With the EVK I'm experiencing the same problem as with my custom board.

What is the program you are using for showing the USB devices you show in the picture?

Thank you.

Patricio