Frequently Asked Questions¶
Documentation Help¶
General help regarding this documentation can be found in Documentation Help.
General Questions¶
Connecting TTL Terminal¶
How to connect a terminal to your module see TTL Converter Terminal Connection.
Enabling USB Bootmode¶
For instructions on how to enable the USB (Serial Downloader) boot mode on your module, please refer to: Enabling USB-Bootmode.
Select Function of USBOTG port¶
The function of the USBOTG port can be selected via the U-Boot environment variable otg_mode.
Variable setting |
USB port function |
|---|---|
host |
USB host port (for connecting USB devices like memory sticks or ethernet/serial converters) |
peripheral device |
USB device port (for using the module as a USB gadget) |
none (or empty) |
USBOTG port deactivated |
The setting of this variable does not affect the Serial Downloader mode.
Example:
setenv otg_mode host
saveenv
Updating Single Files¶
How to update single or multiple files on our modules without re-flashing the whole module see Updating Files.
UUU on Windows 7¶
If you want to run uuu on a Windows 7 host have a look at Running UUU on Windows 7.
Troubleshooting¶
UUU USB Failures¶
If you’re experiencing USB connection failures with uuu see UUU USB Failures.
Compile Errors on Modern Kernel¶
If you have compile errors on a Host-System with modern Kernel (>=5.4) see Compile errors with modern Kernel on Host.
Requested init /linuxrc failed¶
Use init=/sbin/init on the Kernel Commandline.