TM4C129ENCZAD: TM4C129ENCZAD USBport

yousuke nasu

Intellectual 880 points

Part Number: TM4C129ENCZAD

I connected a usb to TM4C129ENCZAD
The notation like the image came out.
Please tell me the cause and remedy.

over 4 years ago

0 Andy Peters over 4 years ago

Genius 3945 points

Assuming you connected your computer to microcontroller's USB port (not a development kit's USB port), the micro is running its bootloader, and the bootloader enumerates as a DFU device.

You need to program the micro with your firmware.

0 Ralph Jacobi over 4 years ago

TI__Guru*** 135355 points

Hello Nasu-san,

As Andy mentioned, what you are seeing is a boot loader that is ready to receive a Flash image so you will need to upload firmware onto the device. Most likely the boot loader you are seeing is the ROM boot loader unless you have application code already running which means that application has entered a boot loading state for USB DFU.

Best Regards,

Ralph Jacobi

0 yousuke nasu over 4 years ago in reply to Andy Peters

Intellectual 880 points

thank you for your reply

How do I program the firmware?

0 Ralph Jacobi over 4 years ago in reply to yousuke nasu

TI__Guru*** 135355 points

Hello Nasu-san,

Please refer to this post where I have answered the same: https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1101500/tm4c129enczad-how-to-write-a-program-to-tm4c129enczadt3-only-by-usb/4081651#4081651

Best Regards,

Ralph Jacobi

Arm-based microcontrollers

Arm-based microcontrollers forum

TM4C129ENCZAD: TM4C129ENCZAD USBport