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Does anyone know of any resources for doing stuff like this on ARM? I have a board with u-boot, but I can't find any information about how to do even a hello wo
by pepijndevos 10y ago
Does anyone know of any resources for doing stuff like this on ARM? I have a board with u-boot, but I can't find any information about how to do even a hello world type program.
- pm215 10y ago32-bit ARM is a bit awkward because traditionally there is no equivalent of the x86 BIOS APIs for doing things like printing output, and the code started by a bootloader is expected to talk directly to the hardware (serial port etc), which is different on every board. If your board uses UEFI then you can use those APIs, or if your grub was built with CONFIG_API that might provide something useful. Otherwise even 'hello world' will require talking to the serial port and adjusting any tutorial code you find to the specifics of your board.