Data Sheet

4/27/2018 OpenCR1.0

http://emanual.robotis.com/docs/en/parts/controller/opencr10/ 17/50

6. 1. 6. Remove Modemmanager

After programming with the Arduino IDE and uploading the program to the OpenCR, the

OpenCR will be restarted and be reconnected. At the same moment, the modem-related

packages of the Linux will send the AT command to manage the device. Thus indicates an

connection error on the OpenCR, so this step should be done previously.

6. 1. 7. Writing Bootloader(Linux)

Caution Update only if the boot loader version has been changed.

The STM32F7xx, which is used for the main MCU on the OpenCR board, supports

DFU(Device Firmware Upgrade). This enables the built-in bootloader of the MCU by itself to

boot the DFU protocol by using USB, primarily for the bootloader initialization, the recovery

mode, and the bootloader update. The biggest advantage to let the users be able to use

bootloader with USB but no other JTAG equipment. Write the firmware by using the DFU

mode which is embedded in MCU without writing / debugging equipment, such as STLink.

6. 1. 7. 1. Programmer Setting

Select Tools → DFU-UTIL

$ sudo apt-get purge modemmanager

OpenCR1.0