U BOOT CONSOLE SERIAL

I have a different question though, how do I silence the console output at the startup? However, I did not have chance to test it yet, but the feature is turned off now. To edison-src/meta-intel-edison/meta-intel-edison-bsp/recipes-bsp/u-boot/files/edison.env CONFIGUSBDEVICE Define this to build a UDC device CONFIGUSBTTY Define this to have a tty type of device available to talk to the UDC device CFGCONSOLEISINENV Define this if you want stdin, stdout &/or stderr to be set to usbtty. Define the below if you wish to use the USB console. The problem only occurs during the boot process.Īs I see the problem, if the radio is connected and receives data while Edison's is booting, it stops u-boot from autobooting the kernel during this 'Press any key to stop autoboot' sequence. Can this work for U-Boot Yes, at least since U-Boot version 2008.10, the README file has stated. If not defined in the environment, the first input device is assigned: to the 'stdin' file, the first output one to 'stdout' and. When U-Boot: relocates itself to RAM, all console drivers are initialized (they: will register all detected console devices to the system for further: use).

U BOOT CONSOLE SERIAL

Edison's powering doesn't seem to be the problem as it all works fine after booting. At system startup U-Boot initializes a serial console. Here is my nfig file: Configuration file for fw (printenv/setenv) utility. However, we may need to use the serial port for another purpose, but we dont want to lose the console for U-Boot and Linux. I found most of what I needed by looking in the file /proc/mtd. The micro and board have support for USB-OTG and one serial port currently, the serial port serves the console for both U-Boot and Linux. Specifically, you need the mtd device name, the device offset, the env size and the flash sector size. The peripheral is a UART connected radio. To create this file, you need to know information about where U-Boot stores its env variables.

I am using a custom yocto image based on the latest released sources.

U boot console